{"id":620,"date":"2025-03-24T08:53:12","date_gmt":"2025-03-23T23:53:12","guid":{"rendered":"https:\/\/dexall.co.jp\/articles\/?p=620"},"modified":"2025-03-24T08:53:12","modified_gmt":"2025-03-23T23:53:12","slug":"%e3%80%902024%e5%b9%b4%e4%bf%9d%e5%ad%98%e7%89%88%e3%80%91mockito%e3%81%ae%e4%bd%bf%e3%81%84%e6%96%b9%e5%ae%8c%e5%85%a8%e3%82%ac%e3%82%a4%e3%83%89%ef%bc%9a%e5%ae%9f%e8%b7%b5%e7%9a%84%e3%81%aa%e3%83%a6","status":"publish","type":"post","link":"https:\/\/dexall.co.jp\/articles\/?p=620","title":{"rendered":"\u30102024\u5e74\u4fdd\u5b58\u7248\u3011Mockito\u306e\u4f7f\u3044\u65b9\u5b8c\u5168\u30ac\u30a4\u30c9\uff1a\u5b9f\u8df5\u7684\u306a\u30e6\u30cb\u30c3\u30c8\u30c6\u30b9\u30c811\u9078"},"content":{"rendered":"\n<div class=\"toc\"><br \/>\n<b>Warning<\/b>:  Undefined array key \"is_admin\" in <b>\/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/sango-theme\/library\/gutenberg\/dist\/classes\/Toc.php<\/b> on line <b>116<\/b><br \/>\n<br \/>\n<b>Warning<\/b>:  Undefined array key \"is_category_top\" in <b>\/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/sango-theme\/library\/gutenberg\/dist\/classes\/Toc.php<\/b> on line <b>121<\/b><br \/>\n<br \/>\n<b>Warning<\/b>:  Undefined array key \"is_top\" in <b>\/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/sango-theme\/library\/gutenberg\/dist\/classes\/Toc.php<\/b> on line <b>128<\/b><br \/>\n    <div id=\"toc_container\" class=\"sgb-toc--bullets js-smooth-scroll\" data-dialog-title=\"\u76ee\u6b21\">\n      <p class=\"toc_title\">\u76ee\u6b21 <\/p>\n      <ul class=\"toc_list\">  <li class=\"first\">    <a href=\"#i-0\">Mockito\u3068\u306f\uff1a\u30e2\u30c3\u30af\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u306e\u6c7a\u5b9a\u7248<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-1\">Java\u3067\u306e\u30e6\u30cb\u30c3\u30c8\u30c6\u30b9\u30c8\u306b\u304a\u3051\u308bMockito\u306e\u5f79\u5272\u3068\u91cd\u8981\u6027<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-2\">\u4ed6\u306e\u30e2\u30c3\u30af\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3068\u6bd4\u8f03\u3057\u305fMockito\u306e\u512a\u4f4d\u6027<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-4\">Mockito\u3092\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306b\u5c0e\u5165\u3059\u308b\u65b9\u6cd5<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-5\">Maven\/Gradle\u3067\u306e\u4f9d\u5b58\u95a2\u4fc2\u306e\u8ffd\u52a0\u65b9\u6cd5<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-8\">JUnit 5\u3068\u306e\u9023\u643a\u8a2d\u5b9a\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-13\">Mockito\u306e\u57fa\u672c\u6a5f\u80fd\u3068\u4f7f\u3044\u65b9<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-14\">\u30e2\u30c3\u30af\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u4f5c\u6210\u65b9\u6cd5\uff08mock\u30fbspy\uff09<\/a>      <\/li>      <li>        <a href=\"#i-18\">\u30b9\u30bf\u30d6\u306e\u5b9a\u7fa9\u65b9\u6cd5\uff08when-thenReturn\uff09<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-22\">\u5f15\u6570\u30de\u30c3\u30c1\u30e3\u30fc\u306e\u4f7f\u3044\u65b9\uff08any, eq\uff09<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-26\">\u5b9f\u8df5\u7684\u306a\u30e6\u30cb\u30c3\u30c8\u30c6\u30b9\u30c8\u30d1\u30bf\u30fc\u30f35\u9078<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-27\">\u5916\u90e8API\u3068\u306e\u901a\u4fe1\u3092\u30e2\u30c3\u30af\u3059\u308b\u65b9\u6cd5<\/a>      <\/li>      <li>        <a href=\"#i-30\">\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u64cd\u4f5c\u306e\u30c6\u30b9\u30c8\u624b\u6cd5<\/a>      <\/li>      <li>        <a href=\"#i-33\">\u4f8b\u5916\u51e6\u7406\u306e\u30c6\u30b9\u30c8\u30c6\u30af\u30cb\u30c3\u30af<\/a>      <\/li>      <li>        <a href=\"#i-36\">\u975e\u540c\u671f\u51e6\u7406\u306e\u30c6\u30b9\u30c8\u65b9\u6cd5<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-39\">Spring\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306e\u30c6\u30b9\u30c8\u6226\u7565<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-42\">\u3088\u304f\u3042\u308b\u30c8\u30e9\u30d6\u30eb\u3068\u89e3\u6c7a\u65b9\u6cd5<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-43\">NullPointerException\u306e\u539f\u56e0\u3068\u5bfe\u51e6\u6cd5<\/a>      <\/li>      <li>        <a href=\"#i-47\">\u30e2\u30c3\u30af\u306e\u691c\u8a3c\u5931\u6557\u6642\u306e\u30c7\u30d0\u30c3\u30b0\u65b9\u6cd5<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-50\">\u30c6\u30b9\u30c8\u306e\u5b9f\u884c\u901f\u5ea6\u6539\u5584\u30c6\u30af\u30cb\u30c3\u30af<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-53\">Mockito\u3092\u4f7f\u3063\u305f\u958b\u767a\u52b9\u7387\u5316\u30c6\u30af\u30cb\u30c3\u30af<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-54\">\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u306e\u518d\u5229\u7528\u30d1\u30bf\u30fc\u30f3<\/a>      <\/li>      <li>        <a href=\"#i-57\">\u30ab\u30b9\u30bf\u30e0\u30de\u30c3\u30c1\u30e3\u30fc\u306e\u4f5c\u6210\u65b9\u6cd5<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-60\">\u30c6\u30b9\u30c8\u53ef\u80fd\u306a\u8a2d\u8a08\u3078\u306e\u6539\u5584\u65b9\u6cd5<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-63\">\u5b9f\u8df5\u7684\u306a\u30e6\u30cb\u30c3\u30c8\u30c6\u30b9\u30c8\u4e8b\u4f8b6\u9078<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-64\">REST\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30fc\u306e\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u4f8b<\/a>      <\/li>      <li>        <a href=\"#i-67\">\u30b5\u30fc\u30d3\u30b9\u30ec\u30a4\u30e4\u30fc\u306e\u30c6\u30b9\u30c8\u30d1\u30bf\u30fc\u30f3<\/a>      <\/li>      <li>        <a href=\"#i-70\">\u30ea\u30dd\u30b8\u30c8\u30ea\u30ec\u30a4\u30e4\u30fc\u306e\u30e2\u30c3\u30af\u6d3b\u7528\u4f8b<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-73\">\u5b9f\u8df5\u7684\u306a\u30c6\u30b9\u30c8\u30b1\u30fc\u30b9\u306e\u307e\u3068\u3081<\/a>      <\/li>    <\/ul>  <\/li>  <li class=\"last\">    <a href=\"#i-74\">\u307e\u3068\u3081\uff1a\u52b9\u679c\u7684\u306a\u30e6\u30cb\u30c3\u30c8\u30c6\u30b9\u30c8\u5b9f\u88c5\u306b\u5411\u3051\u3066<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-75\">\u672c\u8a18\u4e8b\u306e\u30dd\u30a4\u30f3\u30c8\u6574\u7406<\/a>      <\/li>      <li>        <a href=\"#i-76\">Mockito\u3092\u6d3b\u7528\u3057\u305f\u30c6\u30b9\u30c8\u5b9f\u88c5\u306e\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8<\/a>      <\/li>      <li>        <a href=\"#i-77\">\u4eca\u5f8c\u306e\u5b66\u7fd2\u30dd\u30a4\u30f3\u30c8<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-78\">\u6700\u5f8c\u306b<\/a>      <\/li>    <\/ul>  <\/li><\/ul>\n      <a href=\"#\" class=\"sgb-toc-button js-toc-button\" rel=\"nofollow\" data-open-dialog=\"true\"><i class=\"fa fa-list\"><\/i><span class=\"sgb-toc-button__text\">\u76ee\u6b21\u3078<\/span><\/a>\n    <\/div><\/div><h2 class=\"wp-block-heading\" id=\"i-0\">Mockito\u3068\u306f\uff1a\u30e2\u30c3\u30af\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u306e\u6c7a\u5b9a\u7248<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-1\">Java\u3067\u306e\u30e6\u30cb\u30c3\u30c8\u30c6\u30b9\u30c8\u306b\u304a\u3051\u308bMockito\u306e\u5f79\u5272\u3068\u91cd\u8981\u6027<\/h3>\n\n\n\n<p>Mockito\u306f\u3001Java\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u30e6\u30cb\u30c3\u30c8\u30c6\u30b9\u30c8\u3092\u52b9\u7387\u7684\u306b\u884c\u3046\u305f\u3081\u306e\u6700\u3082\u4eba\u6c17\u306e\u3042\u308b\u30e2\u30c3\u30af\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3067\u3059\u30022024\u5e74\u73fe\u5728\u3001GitHub\u4e0a\u306744,000\u4ee5\u4e0a\u306e\u30b9\u30bf\u30fc\u3092\u7372\u5f97\u3057\u3001\u591a\u304f\u306e\u4f01\u696d\u3067\u306e\u5b9f\u7e3e\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"wp-block-sgb-message\"><div class=\"memo sng-shadow-0\" style=\"border-radius:0px;background-color:#ffebeb;color:#f88080\"><div class=\"memo_ttl dfont\"><span class=\"sng-box-msg__icon\" style=\"background:#f88080\"><i class=\"fas fa-exclamation\"><\/i><\/span><div class=\"sng-box-msg__title\">Mockito\u304c\u89e3\u6c7a\u3059\u308b\u4e3b\u306a\u8ab2\u984c<\/div><\/div><div class=\"sng-box-msg__contents\">\n<ol class=\"wp-block-list\">\n<li><strong>\u5916\u90e8\u4f9d\u5b58\u306e\u5206\u96e2<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30a2\u30af\u30bb\u30b9<\/li>\n\n\n\n<li>\u5916\u90e8API\u3068\u306e\u901a\u4fe1<\/li>\n\n\n\n<li>\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u306e\u64cd\u4f5c<\/li>\n\n\n\n<li>\u6642\u9593\u4f9d\u5b58\u306e\u51e6\u7406<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u30c6\u30b9\u30c8\u306e\u4fe1\u983c\u6027\u5411\u4e0a<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u74b0\u5883\u4f9d\u5b58\u306e\u306a\u3044\u30c6\u30b9\u30c8\u5b9f\u884c<\/li>\n\n\n\n<li>\u518d\u73fe\u6027\u306e\u9ad8\u3044\u30c6\u30b9\u30c8\u30b1\u30fc\u30b9<\/li>\n\n\n\n<li>\u30a8\u30c3\u30b8\u30b1\u30fc\u30b9\u306e\u30b7\u30df\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u958b\u767a\u52b9\u7387\u306e\u5411\u4e0a<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u306e\u8a18\u8ff0\u304c\u7c21\u6f54<\/li>\n\n\n\n<li>\u76f4\u611f\u7684\u306aAPI\u8a2d\u8a08<\/li>\n\n\n\n<li>\u8c4a\u5bcc\u306a\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3068\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\u30b5\u30dd\u30fc\u30c8<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<\/div><\/div><\/div>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-2\">\u4ed6\u306e\u30e2\u30c3\u30af\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3068\u6bd4\u8f03\u3057\u305fMockito\u306e\u512a\u4f4d\u6027<\/h3>\n\n\n\n<div class=\"wp-block-sgb-block-simple sgb-box-simple sgb-box-simple--title-normal sgb-box-simple--with-border\"><div style=\"background-color:var(--wp--preset--color--sango-main);color:#FFF\" class=\"sgb-box-simple__title\">\u4e3b\u8981\u306a\u30e2\u30c3\u30af\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u306e\u6bd4\u8f03<\/div><div class=\"sgb-box-simple__body\" style=\"border-color:var(--wp--preset--color--sango-main);background-color:#FFF\"><div id=\"id-668ac2de-e197-436a-af9e-627be3323bb5\">\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u7279\u5fb4<\/th><th>Mockito<\/th><th>EasyMock<\/th><th>PowerMock<\/th><th>JMockit<\/th><\/tr><\/thead><tbody><tr><td>\u5b66\u7fd2\u66f2\u7dda<\/td><td>\u7de9\u3084\u304b<\/td><td>\u4e2d\u7a0b\u5ea6<\/td><td>\u6025<\/td><td>\u6025<\/td><\/tr><tr><td>\u30b3\u30fc\u30c9\u53ef\u8aad\u6027<\/td><td>\u25ce<\/td><td>\u25cb<\/td><td>\u25b3<\/td><td>\u25cb<\/td><\/tr><tr><td>\u6a5f\u80fd\u306e\u8c4a\u5bcc\u3055<\/td><td>\u25cb<\/td><td>\u25cb<\/td><td>\u25ce<\/td><td>\u25ce<\/td><\/tr><tr><td>\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9<\/td><td>\u25ce<\/td><td>\u25cb<\/td><td>\u25b3<\/td><td>\u25b3<\/td><\/tr><tr><td>Spring\u5bfe\u5fdc<\/td><td>\u25ce<\/td><td>\u25cb<\/td><td>\u25cb<\/td><td>\u25cb<\/td><\/tr><tr><td>static\/final\u30e1\u30bd\u30c3\u30c9<\/td><td>\u25b3<\/td><td>\u25b3<\/td><td>\u25ce<\/td><td>\u25ce<\/td><\/tr><tr><td>\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\u6d3b\u6027\u5ea6<\/td><td>\u25ce<\/td><td>\u25b3<\/td><td>\u25cb<\/td><td>\u25b3<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div><\/div><\/div>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-3\">Mockito\u3092\u9078\u3076\u3079\u304d\u7406\u7531<\/h4>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u76f4\u611f\u7684\u306aAPI\u8a2d\u8a08<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ Mockito\u306e\u5834\u5408\nwhen(userService.findById(1L)).thenReturn(new User(\"John\"));\n\n\/\/ EasyMock\u306e\u5834\u5408\nexpect(userService.findById(1L)).andReturn(new User(\"John\"));\nreplay(userService);<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>Spring Framework\u3068\u306e\u7d71\u5408<\/strong>\n<ul class=\"wp-block-list\">\n<li>Spring Boot Test\u5185\u3067\u306e\u30b7\u30fc\u30e0\u30ec\u30b9\u306a\u7d71\u5408<\/li>\n\n\n\n<li><code>@MockBean<\/code>\u30a2\u30ce\u30c6\u30fc\u30b7\u30e7\u30f3\u306b\u3088\u308b\u7c21\u5358\u306a\u30e2\u30c3\u30af\u6ce8\u5165<\/li>\n\n\n\n<li>Spring DI\u30b3\u30f3\u30c6\u30ca\u3068\u306e\u76f8\u6027\u306e\u826f\u3055<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u6d3b\u767a\u306a\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\u3068\u7d99\u7d9a\u7684\u306a\u6539\u5584<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u5b9a\u671f\u7684\u306a\u30d0\u30fc\u30b8\u30e7\u30f3\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8<\/li>\n\n\n\n<li>\u30d0\u30b0\u4fee\u6b63\u306e\u8fc5\u901f\u306a\u5bfe\u5fdc<\/li>\n\n\n\n<li>\u8c4a\u5bcc\u306a\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3068\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u30e2\u30c0\u30f3\u306aJava\u6a5f\u80fd\u306e\u30b5\u30dd\u30fc\u30c8<\/strong>\n<ul class=\"wp-block-list\">\n<li>Java 8\u4ee5\u964d\u306e\u6a5f\u80fd\u3068\u306e\u4e92\u63db\u6027<\/li>\n\n\n\n<li>\u30e9\u30e0\u30c0\u5f0f\u306e\u30b5\u30dd\u30fc\u30c8<\/li>\n\n\n\n<li>Optional\u578b\u306e\u9069\u5207\u306a\u51e6\u7406<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<p>\u3053\u306e\u3088\u3046\u306b\u3001Mockito\u306f\u5b66\u7fd2\u30b3\u30b9\u30c8\u304c\u4f4e\u304f\u3001\u5b9f\u7528\u7684\u306a\u6a5f\u80fd\u3092\u5099\u3048\u3001\u304b\u3064\u30e2\u30c0\u30f3\u306a\u958b\u767a\u74b0\u5883\u306b\u9069\u5fdc\u3057\u305f\u7406\u60f3\u7684\u306a\u30e2\u30c3\u30af\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3068\u3057\u3066\u3001\u591a\u304f\u306e\u958b\u767a\u73fe\u5834\u3067\u63a1\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u7279\u306bSpring Boot\u3092\u4f7f\u7528\u3059\u308b\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u306f\u3001\u30c6\u30b9\u30c8\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u306e\u9078\u629e\u80a2\u3068\u3057\u3066\u6700\u3082\u5408\u7406\u7684\u306a\u9078\u629e\u3068\u306a\u308b\u3067\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-4\">Mockito\u3092\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306b\u5c0e\u5165\u3059\u308b\u65b9\u6cd5<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-5\">Maven\/Gradle\u3067\u306e\u4f9d\u5b58\u95a2\u4fc2\u306e\u8ffd\u52a0\u65b9\u6cd5<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-6\">Maven\u306e\u5834\u5408<\/h4>\n\n\n\n<p><code>pom.xml<\/code>\u306b\u4ee5\u4e0b\u306e\u4f9d\u5b58\u95a2\u4fc2\u3092\u8ffd\u52a0\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">&lt;!-- JUnit 5 --&gt;\n&lt;dependency&gt;\n    &lt;groupId&gt;org.junit.jupiter&lt;\/groupId&gt;\n    &lt;artifactId&gt;junit-jupiter&lt;\/artifactId&gt;\n    &lt;version&gt;5.10.1&lt;\/version&gt;\n    &lt;scope&gt;test&lt;\/scope&gt;\n&lt;\/dependency&gt;\n\n&lt;!-- Mockito Core --&gt;\n&lt;dependency&gt;\n    &lt;groupId&gt;org.mockito&lt;\/groupId&gt;\n    &lt;artifactId&gt;mockito-core&lt;\/artifactId&gt;\n    &lt;version&gt;5.8.0&lt;\/version&gt;\n    &lt;scope&gt;test&lt;\/scope&gt;\n&lt;\/dependency&gt;\n\n&lt;!-- Mockito JUnit Jupiter --&gt;\n&lt;dependency&gt;\n    &lt;groupId&gt;org.mockito&lt;\/groupId&gt;\n    &lt;artifactId&gt;mockito-junit-jupiter&lt;\/artifactId&gt;\n    &lt;version&gt;5.8.0&lt;\/version&gt;\n    &lt;scope&gt;test&lt;\/scope&gt;\n&lt;\/dependency&gt;<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-7\">Gradle\u306e\u5834\u5408<\/h4>\n\n\n\n<p><code>build.gradle<\/code>\u306b\u4ee5\u4e0b\u306e\u4f9d\u5b58\u95a2\u4fc2\u3092\u8ffd\u52a0\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">dependencies {\n    testImplementation 'org.junit.jupiter:junit-jupiter:5.10.1'\n    testImplementation 'org.mockito:mockito-core:5.8.0'\n    testImplementation 'org.mockito:mockito-junit-jupiter:5.8.0'\n}\n\ntest {\n    useJUnitPlatform()\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-8\">JUnit 5\u3068\u306e\u9023\u643a\u8a2d\u5b9a\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-9\">1. \u30c6\u30b9\u30c8\u30af\u30e9\u30b9\u306e\u57fa\u672c\u8a2d\u5b9a<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">import org.junit.jupiter.api.extension.ExtendWith;\nimport org.mockito.junit.jupiter.MockitoExtension;\nimport org.mockito.Mock;\nimport org.mockito.InjectMocks;\n\n@ExtendWith(MockitoExtension.class)  \/\/ JUnit 5\u3067Mockito\u3092\u4f7f\u7528\u3059\u308b\u305f\u3081\u306e\u8a2d\u5b9a\npublic class UserServiceTest {\n    @Mock  \/\/ \u30e2\u30c3\u30af\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u4f5c\u6210\n    private UserRepository userRepository;\n\n    @InjectMocks  \/\/ \u30e2\u30c3\u30af\u3092\u6ce8\u5165\u3059\u308b\u30af\u30e9\u30b9\n    private UserService userService;\n\n    \/\/ \u30c6\u30b9\u30c8\u30e1\u30bd\u30c3\u30c9\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-10\">2. Spring Boot\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u306e\u8a2d\u5b9a<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">import org.springframework.boot.test.context.SpringBootTest;\nimport org.springframework.boot.test.mock.mockito.MockBean;\n\n@SpringBootTest\npublic class UserControllerTest {\n    @MockBean  \/\/ Spring\u306eDI\u30b3\u30f3\u30c6\u30ca\u306b\u30e2\u30c3\u30af\u3092\u767b\u9332\n    private UserService userService;\n\n    @Autowired\n    private UserController userController;\n\n    \/\/ \u30c6\u30b9\u30c8\u30e1\u30bd\u30c3\u30c9\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-11\">3. \u30c6\u30b9\u30c8\u30e9\u30a4\u30d5\u30b5\u30a4\u30af\u30eb\u306e\u8a2d\u5b9a<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@TestInstance(TestInstance.Lifecycle.PER_CLASS)  \/\/ \u30af\u30e9\u30b9\u5358\u4f4d\u3067\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u4f5c\u6210\npublic class UserServiceTest {\n    @BeforeAll\n    void setup() {\n        \/\/ \u30c6\u30b9\u30c8\u5168\u4f53\u306e\u521d\u671f\u5316\u51e6\u7406\n    }\n\n    @BeforeEach\n    void init() {\n        \/\/ \u5404\u30c6\u30b9\u30c8\u30e1\u30bd\u30c3\u30c9\u5b9f\u884c\u524d\u306e\u521d\u671f\u5316\n    }\n}<\/pre>\n\n\n\n<div class=\"wp-block-sgb-message\"><div class=\"memo sng-shadow-0\" style=\"border-radius:0px;background-color:#fff9e6;color:#ffb36b\"><div class=\"memo_ttl dfont\"><span class=\"sng-box-msg__icon\" style=\"background:#ffb36b\"><i class=\"fas fa-pencil-alt\"><\/i><\/span><div class=\"sng-box-msg__title\">\u3088\u304f\u3042\u308b\u8a2d\u5b9a\u306e\u554f\u984c\u3068\u89e3\u6c7a\u65b9\u6cd5<\/div><\/div><div class=\"sng-box-msg__contents\"><div id=\"id-e440c4df-ef31-4db7-8188-5616bbc81af0\">\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u554f\u984c<\/th><th>\u539f\u56e0<\/th><th>\u89e3\u6c7a\u65b9\u6cd5<\/th><\/tr><\/thead><tbody><tr><td>\u30e2\u30c3\u30af\u304c\u6a5f\u80fd\u3057\u306a\u3044<\/td><td><code>@ExtendWith<\/code>\u30a2\u30ce\u30c6\u30fc\u30b7\u30e7\u30f3\u306e\u6b20\u5982<\/td><td>\u30af\u30e9\u30b9\u306b<code>@ExtendWith(MockitoExtension.class)<\/code>\u3092\u8ffd\u52a0<\/td><\/tr><tr><td>\u30d0\u30fc\u30b8\u30e7\u30f3\u4e0d\u6574\u5408<\/td><td>JUnit\u3068Mockito\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u30df\u30b9\u30de\u30c3\u30c1<\/td><td>\u4e92\u63db\u6027\u306e\u3042\u308b\u30d0\u30fc\u30b8\u30e7\u30f3\u306e\u7d44\u307f\u5408\u308f\u305b\u3092\u4f7f\u7528<\/td><\/tr><tr><td>DI\u30a8\u30e9\u30fc<\/td><td><code>@InjectMocks<\/code>\u306e\u5bfe\u8c61\u30af\u30e9\u30b9\u306b\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u6ce8\u5165\u304c\u3042\u308b<\/td><td>\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u7528\u306e\u30e2\u30c3\u30af\u3092\u5168\u3066\u6e96\u5099<\/td><\/tr><tr><td>Static\/Final\u30e1\u30bd\u30c3\u30c9\u306e\u30e2\u30c3\u30af\u5316\u5931\u6557<\/td><td>Mockito\u5358\u4f53\u3067\u306e\u5236\u9650<\/td><td>PowerMock\u3068\u306e\u4f75\u7528\u3092\u691c\u8a0e<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div><\/div><\/div><\/div>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-12\">\u63a8\u5968\u3055\u308c\u308b\u8ffd\u52a0\u8a2d\u5b9a<\/h4>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30c6\u30b9\u30c8\u30ab\u30d0\u30ec\u30c3\u30b8\u30c4\u30fc\u30eb\u306e\u5c0e\u5165<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">&lt;!-- JaCoCo --&gt;\n&lt;plugin&gt;\n    &lt;groupId&gt;org.jacoco&lt;\/groupId&gt;\n    &lt;artifactId&gt;jacoco-maven-plugin&lt;\/artifactId&gt;\n    &lt;version&gt;0.8.11&lt;\/version&gt;\n    &lt;executions&gt;\n        &lt;execution&gt;\n            &lt;goals&gt;\n                &lt;goal&gt;prepare-agent&lt;\/goal&gt;\n            &lt;\/goals&gt;\n        &lt;\/execution&gt;\n        &lt;execution&gt;\n            &lt;id&gt;report&lt;\/id&gt;\n            &lt;phase&gt;test&lt;\/phase&gt;\n            &lt;goals&gt;\n                &lt;goal&gt;report&lt;\/goal&gt;\n            &lt;\/goals&gt;\n        &lt;\/execution&gt;\n    &lt;\/executions&gt;\n&lt;\/plugin&gt;<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30c6\u30b9\u30c8\u30ed\u30b0\u306e\u8a2d\u5b9a<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">&lt;!-- logback-test.xml --&gt;\n&lt;configuration&gt;\n    &lt;appender name=\"CONSOLE\" class=\"ch.qos.logback.core.ConsoleAppender\"&gt;\n        &lt;encoder&gt;\n            &lt;pattern&gt;%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n&lt;\/pattern&gt;\n        &lt;\/encoder&gt;\n    &lt;\/appender&gt;\n    &lt;root level=\"INFO\"&gt;\n        &lt;appender-ref ref=\"CONSOLE\" \/&gt;\n    &lt;\/root&gt;\n&lt;\/configuration&gt;<\/pre>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u8a2d\u5b9a\u3092\u9069\u5207\u306b\u884c\u3046\u3053\u3068\u3067\u3001Mockito\u3092\u4f7f\u7528\u3057\u305f\u52b9\u679c\u7684\u306a\u30e6\u30cb\u30c3\u30c8\u30c6\u30b9\u30c8\u74b0\u5883\u3092\u69cb\u7bc9\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u7279\u306bSpring Boot\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u306f\u3001\u3053\u308c\u3089\u306e\u8a2d\u5b9a\u306b\u3088\u3063\u3066\u30c6\u30b9\u30c8\u306e\u4fe1\u983c\u6027\u3068\u4fdd\u5b88\u6027\u3092\u5927\u304d\u304f\u5411\u4e0a\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-13\">Mockito\u306e\u57fa\u672c\u6a5f\u80fd\u3068\u4f7f\u3044\u65b9<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-14\">\u30e2\u30c3\u30af\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u4f5c\u6210\u65b9\u6cd5\uff08mock\u30fbspy\uff09<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-15\">1. <code>@Mock<\/code>\u30a2\u30ce\u30c6\u30fc\u30b7\u30e7\u30f3\u3092\u4f7f\u7528\u3057\u305f\u65b9\u6cd5<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@ExtendWith(MockitoExtension.class)\nclass UserServiceTest {\n    @Mock\n    private UserRepository userRepository;  \/\/ \u30e2\u30c3\u30af\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u4f5c\u6210\n\n    @Test\n    void testFindUser() {\n        \/\/ \u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\n    }\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-16\">2. Mockito.mock()\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u305f\u65b9\u6cd5<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class UserServiceTest {\n    private UserRepository userRepository = Mockito.mock(UserRepository.class);\n\n    @Test\n    void testFindUser() {\n        \/\/ \u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\n    }\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-17\">3. spy()\u3092\u4f7f\u7528\u3057\u305f\u90e8\u5206\u30e2\u30c3\u30af<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class UserServiceTest {\n    \/\/ \u5b9f\u969b\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u4e00\u90e8\u306e\u307f\u3092\u30e2\u30c3\u30af\u5316\n    private List&lt;String&gt; spyList = Mockito.spy(new ArrayList&lt;&gt;());\n\n    @Test\n    void testListOperations() {\n        \/\/ \u4e00\u90e8\u306e\u30e1\u30bd\u30c3\u30c9\u306e\u307f\u3092\u30e2\u30c3\u30af\u5316\n        doReturn(100).when(spyList).size();\n\n        \/\/ \u5b9f\u969b\u306e\u30e1\u30bd\u30c3\u30c9\u306f\u901a\u5e38\u901a\u308a\u52d5\u4f5c\n        spyList.add(\"test\");\n\n        assertEquals(\"test\", spyList.get(0));  \/\/ \u5b9f\u969b\u306e\u52d5\u4f5c\n        assertEquals(100, spyList.size());     \/\/ \u30e2\u30c3\u30af\u5316\u3055\u308c\u305f\u52d5\u4f5c\n    }\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-18\">\u30b9\u30bf\u30d6\u306e\u5b9a\u7fa9\u65b9\u6cd5\uff08when-thenReturn\uff09<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-19\">1. \u57fa\u672c\u7684\u306a\u30b9\u30bf\u30d6\u306e\u5b9a\u7fa9<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@Test\nvoid testUserFind() {\n    \/\/ \u623b\u308a\u5024\u306e\u8a2d\u5b9a\n    User mockUser = new User(\"test-user\");\n    when(userRepository.findById(1L)).thenReturn(mockUser);\n\n    \/\/ \u8907\u6570\u306e\u623b\u308a\u5024\u3092\u9806\u756a\u306b\u8fd4\u3059\n    when(userRepository.getStatus())\n        .thenReturn(\"active\")\n        .thenReturn(\"inactive\");\n\n    \/\/ \u4f8b\u5916\u3092\u30b9\u30ed\u30fc\u3059\u308b\n    when(userRepository.findById(999L))\n        .thenThrow(new UserNotFoundException(\"User not found\"));\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-20\">2. void \u30e1\u30bd\u30c3\u30c9\u306e\u30b9\u30bf\u30d6<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@Test\nvoid testVoidMethod() {\n    \/\/ void\u30e1\u30bd\u30c3\u30c9\u306e\u5834\u5408\u306fdoNothing()\u3084doThrow()\u3092\u4f7f\u7528\n    doNothing().when(userRepository).delete(1L);\n    doThrow(new RuntimeException()).when(userRepository).delete(999L);\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-21\">3. \u30b3\u30fc\u30eb\u30d0\u30c3\u30af\u3092\u4f7f\u7528\u3057\u305f\u30b9\u30bf\u30d6<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@Test\nvoid testWithCallback() {\n    when(userRepository.findById(anyLong())).thenAnswer(invocation -&gt; {\n        Long id = invocation.getArgument(0);\n        return new User(\"user-\" + id);\n    });\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-22\">\u5f15\u6570\u30de\u30c3\u30c1\u30e3\u30fc\u306e\u4f7f\u3044\u65b9\uff08any, eq\uff09<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-23\">1. \u57fa\u672c\u7684\u306a\u30de\u30c3\u30c1\u30e3\u30fc<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@Test\nvoid testArgumentMatchers() {\n    \/\/ \u4efb\u610f\u306e\u5f15\u6570\n    when(userRepository.findById(any())).thenReturn(new User());\n\n    \/\/ \u7279\u5b9a\u306e\u578b\u306e\u4efb\u610f\u306e\u5f15\u6570\n    when(userRepository.findByEmail(anyString())).thenReturn(new User());\n\n    \/\/ \u7279\u5b9a\u306e\u5024\u3068\u306e\u5b8c\u5168\u4e00\u81f4\n    when(userRepository.findById(eq(1L))).thenReturn(new User());\n\n    \/\/ null\u5024\u306e\u8a31\u5bb9\n    when(userRepository.findByEmail(isNull())).thenReturn(null);\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-24\">2. \u8907\u5408\u7684\u306a\u30de\u30c3\u30c1\u30e3\u30fc<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@Test\nvoid testComplexMatchers() {\n    \/\/ \u6587\u5b57\u5217\u30d1\u30bf\u30fc\u30f3\n    when(userRepository.findByEmail(matches(\".*@example\\\\.com\")))\n        .thenReturn(new User());\n\n    \/\/ \u6570\u5024\u7bc4\u56f2\n    when(userRepository.findByAge(intThat(age -&gt; age &gt;= 18 &amp;&amp; age &lt;= 60)))\n        .thenReturn(Arrays.asList(new User(), new User()));\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-25\">3. \u30ab\u30b9\u30bf\u30e0\u30de\u30c3\u30c1\u30e3\u30fc<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class IsValidUserMatcher implements ArgumentMatcher&lt;User&gt; {\n    @Override\n    public boolean matches(User user) {\n        return user != null \n            &amp;&amp; user.getEmail() != null \n            &amp;&amp; user.getEmail().contains(\"@\");\n    }\n}\n\n@Test\nvoid testCustomMatcher() {\n    \/\/ \u30ab\u30b9\u30bf\u30e0\u30de\u30c3\u30c1\u30e3\u30fc\u306e\u4f7f\u7528\n    when(userRepository.save(argThat(new IsValidUserMatcher())))\n        .thenReturn(true);\n}<\/pre>\n\n\n\n<p class=\"is-style-sango-paragraph-exclamation-alt\"><strong>\u91cd\u8981\u306a\u6ce8\u610f\u70b9<\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30de\u30c3\u30c1\u30e3\u30fc\u306e\u6df7\u5408\u4f7f\u7528<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u6b63\u3057\u3044\u4f7f\u7528\u6cd5\uff1a\u5168\u3066\u306e\u5f15\u6570\u3067\u30de\u30c3\u30c1\u30e3\u30fc\u3092\u4f7f\u7528\nwhen(userService.findUser(any(), anyString())).thenReturn(new User());\n\n\/\/ \u8aa4\u3063\u305f\u4f7f\u7528\u6cd5\uff1a\u901a\u5e38\u306e\u5f15\u6570\u3068\u30de\u30c3\u30c1\u30e3\u30fc\u306e\u6df7\u5408\n\/\/ when(userService.findUser(1L, anyString())); \/\/ \u30b3\u30f3\u30d1\u30a4\u30eb\u30a8\u30e9\u30fc<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u691c\u8a3c\u6642\u306e\u30de\u30c3\u30c1\u30e3\u30fc<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@Test\nvoid testVerification() {\n    userService.createUser(\"test@example.com\", \"password\");\n\n    \/\/ \u30de\u30c3\u30c1\u30e3\u30fc\u3092\u4f7f\u7528\u3057\u305f\u691c\u8a3c\n    verify(userRepository).save(\n        argThat(user -&gt; \n            user.getEmail().equals(\"test@example.com\")\n            &amp;&amp; user.getPassword() != null\n        )\n    );\n}<\/pre>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u57fa\u672c\u6a5f\u80fd\u3092\u9069\u5207\u306b\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u67d4\u8edf\u3067\u4fdd\u5b88\u6027\u306e\u9ad8\u3044\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u3092\u4f5c\u6210\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u7279\u306b\u3001\u5f15\u6570\u30de\u30c3\u30c1\u30e3\u30fc\u3092\u52b9\u679c\u7684\u306b\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u306e\u5197\u9577\u6027\u3092\u6e1b\u3089\u3057\u3001\u3088\u308a\u8868\u73fe\u529b\u8c4a\u304b\u306a\u30c6\u30b9\u30c8\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-26\">\u5b9f\u8df5\u7684\u306a\u30e6\u30cb\u30c3\u30c8\u30c6\u30b9\u30c8\u30d1\u30bf\u30fc\u30f35\u9078<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-27\">\u5916\u90e8API\u3068\u306e\u901a\u4fe1\u3092\u30e2\u30c3\u30af\u3059\u308b\u65b9\u6cd5<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-28\">1. RestTemplate\u306e\u30e2\u30c3\u30af\u5316<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@ExtendWith(MockitoExtension.class)\nclass ExternalApiServiceTest {\n    @Mock\n    private RestTemplate restTemplate;\n\n    @InjectMocks\n    private ExternalApiService apiService;\n\n    @Test\n    void testExternalApiCall() {\n        \/\/ \u30ec\u30b9\u30dd\u30f3\u30b9\u306e\u6e96\u5099\n        ResponseEntity&lt;UserDTO&gt; response = new ResponseEntity&lt;&gt;(\n            new UserDTO(\"John Doe\", \"john@example.com\"),\n            HttpStatus.OK\n        );\n\n        \/\/ \u30e2\u30c3\u30af\u306e\u8a2d\u5b9a\n        when(restTemplate.exchange(\n            anyString(),\n            eq(HttpMethod.GET),\n            any(HttpEntity.class),\n            eq(UserDTO.class)\n        )).thenReturn(response);\n\n        \/\/ \u30c6\u30b9\u30c8\u5b9f\u884c\n        UserDTO result = apiService.fetchUserData(1L);\n\n        \/\/ \u691c\u8a3c\n        assertNotNull(result);\n        assertEquals(\"John Doe\", result.getName());\n        verify(restTemplate).exchange(\n            contains(\"\/api\/users\/1\"),\n            eq(HttpMethod.GET),\n            any(HttpEntity.class),\n            eq(UserDTO.class)\n        );\n    }\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-29\">2. WebClient\uff08\u975e\u540c\u671fAPI\uff09\u306e\u30e2\u30c3\u30af\u5316<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@ExtendWith(MockitoExtension.class)\nclass WebClientServiceTest {\n    @Mock\n    private WebClient.Builder webClientBuilder;\n    @Mock\n    private WebClient webClient;\n    @Mock\n    private WebClient.RequestHeadersUriSpec&lt;?&gt; requestHeadersUriSpec;\n    @Mock\n    private WebClient.ResponseSpec responseSpec;\n\n    @InjectMocks\n    private WebClientService webClientService;\n\n    @Test\n    void testAsyncApiCall() {\n        \/\/ \u30e2\u30c3\u30af\u30c1\u30a7\u30fc\u30f3\u306e\u8a2d\u5b9a\n        when(webClientBuilder.build()).thenReturn(webClient);\n        when(webClient.get()).thenReturn(requestHeadersUriSpec);\n        when(requestHeadersUriSpec.uri(anyString())).thenReturn(requestHeadersUriSpec);\n        when(requestHeadersUriSpec.retrieve()).thenReturn(responseSpec);\n        when(responseSpec.bodyToMono(UserDTO.class))\n            .thenReturn(Mono.just(new UserDTO(\"Jane Doe\", \"jane@example.com\")));\n\n        \/\/ \u30c6\u30b9\u30c8\u5b9f\u884c\n        UserDTO result = webClientService.fetchUserData(1L).block();\n\n        \/\/ \u691c\u8a3c\n        assertNotNull(result);\n        assertEquals(\"Jane Doe\", result.getName());\n    }\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-30\">\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u64cd\u4f5c\u306e\u30c6\u30b9\u30c8\u624b\u6cd5<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-31\">1. \u30ea\u30dd\u30b8\u30c8\u30ea\u30ec\u30a4\u30e4\u30fc\u306e\u30e2\u30c3\u30af\u5316<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@ExtendWith(MockitoExtension.class)\nclass UserServiceTest {\n    @Mock\n    private UserRepository userRepository;\n\n    @InjectMocks\n    private UserService userService;\n\n    @Test\n    void testDatabaseOperation() {\n        \/\/ \u30c6\u30b9\u30c8\u30c7\u30fc\u30bf\u306e\u6e96\u5099\n        User user = new User(\"test-user\", \"test@example.com\");\n        when(userRepository.findById(1L)).thenReturn(Optional.of(user));\n        when(userRepository.save(any(User.class))).thenAnswer(i -&gt; i.getArgument(0));\n\n        \/\/ \u30c6\u30b9\u30c8\u5b9f\u884c\n        User updatedUser = userService.updateUserEmail(1L, \"new@example.com\");\n\n        \/\/ \u691c\u8a3c\n        assertEquals(\"new@example.com\", updatedUser.getEmail());\n        verify(userRepository).save(argThat(u -&gt; \n            u.getEmail().equals(\"new@example.com\") &amp;&amp;\n            u.getName().equals(\"test-user\")\n        ));\n    }\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-32\">2. \u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u51e6\u7406\u306e\u30c6\u30b9\u30c8<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@ExtendWith(MockitoExtension.class)\nclass TransactionServiceTest {\n    @Mock\n    private UserRepository userRepository;\n    @Mock\n    private AccountRepository accountRepository;\n\n    @InjectMocks\n    private TransactionService transactionService;\n\n    @Test\n    void testTransactionRollback() {\n        \/\/ \u5931\u6557\u3059\u308b\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u306e\u30b7\u30df\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3\n        when(userRepository.findById(1L))\n            .thenReturn(Optional.of(new User(\"test-user\", 1000.0)));\n        when(accountRepository.save(any()))\n            .thenThrow(new RuntimeException(\"Database error\"));\n\n        \/\/ \u30c6\u30b9\u30c8\u5b9f\u884c\u3068\u691c\u8a3c\n        assertThrows(TransactionException.class, \n            () -&gt; transactionService.transfer(1L, 2L, 500.0));\n\n        \/\/ \u30ed\u30fc\u30eb\u30d0\u30c3\u30af\u306e\u78ba\u8a8d\n        verify(userRepository, never()).save(any());\n    }\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-33\">\u4f8b\u5916\u51e6\u7406\u306e\u30c6\u30b9\u30c8\u30c6\u30af\u30cb\u30c3\u30af<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-34\">1. \u4e88\u671f\u3055\u308c\u305f\u4f8b\u5916\u306e\u30c6\u30b9\u30c8<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@Test\nvoid testExpectedExceptionHandling() {\n    \/\/ \u4f8b\u5916\u3092\u30b9\u30ed\u30fc\u3059\u308b\u30e2\u30c3\u30af\u306e\u8a2d\u5b9a\n    when(userRepository.findById(999L))\n        .thenThrow(new UserNotFoundException(\"User not found\"));\n\n    \/\/ \u4f8b\u5916\u306e\u691c\u8a3c\n    UserNotFoundException exception = assertThrows(\n        UserNotFoundException.class,\n        () -&gt; userService.getUser(999L)\n    );\n\n    assertEquals(\"User not found\", exception.getMessage());\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-35\">2. \u4f8b\u5916\u30c1\u30a7\u30fc\u30f3\u306e\u30c6\u30b9\u30c8<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@Test\nvoid testExceptionChainHandling() {\n    \/\/ \u4f4e\u30ec\u30d9\u30eb\u306e\u4f8b\u5916\u3092\u30b9\u30ed\u30fc\u3059\u308b\u30e2\u30c3\u30af\u306e\u8a2d\u5b9a\n    when(userRepository.save(any()))\n        .thenThrow(new DataIntegrityViolationException(\"Duplicate email\"));\n\n    \/\/ \u9ad8\u30ec\u30d9\u30eb\u306e\u4f8b\u5916\u306b\u5909\u63db\u3055\u308c\u308b\u3053\u3068\u3092\u691c\u8a3c\n    BusinessException exception = assertThrows(\n        BusinessException.class,\n        () -&gt; userService.createUser(new UserDTO(\"test\", \"existing@example.com\"))\n    );\n\n    assertTrue(exception.getCause() instanceof DataIntegrityViolationException);\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-36\">\u975e\u540c\u671f\u51e6\u7406\u306e\u30c6\u30b9\u30c8\u65b9\u6cd5<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-37\">1. CompletableFuture\u306e\u30c6\u30b9\u30c8<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@Test\nvoid testAsyncOperation() {\n    \/\/ \u975e\u540c\u671f\u51e6\u7406\u306e\u30e2\u30c3\u30af\u8a2d\u5b9a\n    when(userRepository.findByIdAsync(1L))\n        .thenReturn(CompletableFuture.completedFuture(new User(\"test-user\")));\n\n    \/\/ \u30c6\u30b9\u30c8\u5b9f\u884c\n    CompletableFuture&lt;User&gt; future = userService.getUserAsync(1L);\n\n    \/\/ \u7d50\u679c\u306e\u691c\u8a3c\n    User result = future.join();\n    assertNotNull(result);\n    assertEquals(\"test-user\", result.getName());\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-38\">2. Reactor\/WebFlux\u306e\u30c6\u30b9\u30c8<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@Test\nvoid testReactiveStream() {\n    \/\/ \u30ea\u30a2\u30af\u30c6\u30a3\u30d6\u30b9\u30c8\u30ea\u30fc\u30e0\u306e\u30e2\u30c3\u30af\u8a2d\u5b9a\n    when(userRepository.findAllReactive())\n        .thenReturn(Flux.just(\n            new User(\"user1\"),\n            new User(\"user2\")\n        ));\n\n    \/\/ \u30c6\u30b9\u30c8\u5b9f\u884c\u3068\u691c\u8a3c\n    StepVerifier.create(userService.getAllUsers())\n        .expectNextMatches(user -&gt; user.getName().equals(\"user1\"))\n        .expectNextMatches(user -&gt; user.getName().equals(\"user2\"))\n        .verifyComplete();\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-39\">Spring\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306e\u30c6\u30b9\u30c8\u6226\u7565<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-40\">1. \u30b5\u30fc\u30d3\u30b9\u30ec\u30a4\u30e4\u30fc\u306e\u30c6\u30b9\u30c8<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@ExtendWith(MockitoExtension.class)\nclass UserServiceIntegrationTest {\n    @Mock\n    private UserRepository userRepository;\n    @Mock\n    private EmailService emailService;\n\n    @InjectMocks\n    private UserService userService;\n\n    @Test\n    void testUserRegistration() {\n        \/\/ \u30e2\u30c3\u30af\u306e\u8a2d\u5b9a\n        when(userRepository.save(any(User.class)))\n            .thenAnswer(i -&gt; i.getArgument(0));\n        doNothing().when(emailService)\n            .sendWelcomeEmail(anyString());\n\n        \/\/ \u30c6\u30b9\u30c8\u5b9f\u884c\n        User newUser = userService.registerUser(\n            new UserDTO(\"test-user\", \"test@example.com\")\n        );\n\n        \/\/ \u691c\u8a3c\n        assertNotNull(newUser);\n        verify(emailService).sendWelcomeEmail(\"test@example.com\");\n        verify(userRepository).save(any(User.class));\n    }\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-41\">2. \u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30fc\u30ec\u30a4\u30e4\u30fc\u306e\u30c6\u30b9\u30c8<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@WebMvcTest(UserController.class)\nclass UserControllerTest {\n    @Autowired\n    private MockMvc mockMvc;\n\n    @MockBean\n    private UserService userService;\n\n    @Test\n    void testGetUser() throws Exception {\n        \/\/ \u30e2\u30c3\u30af\u306e\u8a2d\u5b9a\n        when(userService.getUser(1L))\n            .thenReturn(new User(\"test-user\", \"test@example.com\"));\n\n        \/\/ API\u30ea\u30af\u30a8\u30b9\u30c8\u306e\u30c6\u30b9\u30c8\n        mockMvc.perform(get(\"\/api\/users\/1\")\n            .contentType(MediaType.APPLICATION_JSON))\n            .andExpect(status().isOk())\n            .andExpect(jsonPath(\"$.name\").value(\"test-user\"))\n            .andExpect(jsonPath(\"$.email\").value(\"test@example.com\"));\n    }\n}<\/pre>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u30d1\u30bf\u30fc\u30f3\u3092\u9069\u5207\u306b\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u30c6\u30b9\u30c8\u30b9\u30a4\u30fc\u30c8\u3092\u69cb\u7bc9\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u7279\u306b\u3001\u5916\u90e8\u4f9d\u5b58\u306e\u30e2\u30c3\u30af\u5316\u3068\u4f8b\u5916\u51e6\u7406\u306e\u30c6\u30b9\u30c8\u306f\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u5805\u7262\u6027\u3092\u78ba\u4fdd\u3059\u308b\u4e0a\u3067\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-42\">\u3088\u304f\u3042\u308b\u30c8\u30e9\u30d6\u30eb\u3068\u89e3\u6c7a\u65b9\u6cd5<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-43\">NullPointerException\u306e\u539f\u56e0\u3068\u5bfe\u51e6\u6cd5<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-44\">1. \u30e2\u30c3\u30af\u306e\u521d\u671f\u5316\u5931\u6557<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u554f\u984c\u306e\u3042\u308b\u30b3\u30fc\u30c9\npublic class UserServiceTest {\n    private UserRepository userRepository;  \/\/ @Mock\u30a2\u30ce\u30c6\u30fc\u30b7\u30e7\u30f3\u5fd8\u308c\n\n    @Test\n    void testUser() {\n        when(userRepository.findById(1L))  \/\/ NullPointerException\u767a\u751f\n            .thenReturn(new User());\n    }\n}\n\n\/\/ \u6b63\u3057\u3044\u5b9f\u88c5\n@ExtendWith(MockitoExtension.class)\npublic class UserServiceTest {\n    @Mock\n    private UserRepository userRepository;  \/\/ \u9069\u5207\u306a\u521d\u671f\u5316\n\n    @Test\n    void testUser() {\n        when(userRepository.findById(1L))  \/\/ \u6b63\u5e38\u306b\u52d5\u4f5c\n            .thenReturn(new User());\n    }\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-45\">2. \u30e2\u30c3\u30af\u5316\u3055\u308c\u305f\u30e1\u30bd\u30c3\u30c9\u306e\u623b\u308a\u5024\u304cnull<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@Test\nvoid testUserSearch() {\n    \/\/ \u6697\u9ed9\u7684\u306bnull\u3092\u8fd4\u3059\u30e2\u30c3\u30af\n    UserRepository userRepository = mock(UserRepository.class);\n\n    \/\/ \u660e\u793a\u7684\u306b\u623b\u308a\u5024\u3092\u8a2d\u5b9a\n    when(userRepository.findById(anyLong()))\n        .thenReturn(Optional.of(new User()));  \/\/ NullPointer\u3092\u9632\u3050\n\n    \/\/ Optional\u4f7f\u7528\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\n    when(userRepository.findById(anyLong()))\n        .thenReturn(Optional.empty());  \/\/ null\u306e\u4ee3\u308f\u308a\u306bEmpty Optional\u3092\u4f7f\u7528\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-46\">3. \u90e8\u5206\u30e2\u30c3\u30af\uff08spy\uff09\u4f7f\u7528\u6642\u306e\u6ce8\u610f\u70b9<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u554f\u984c\u306e\u3042\u308b\u30b3\u30fc\u30c9\nList&lt;String&gt; spyList = spy(null);  \/\/ NullPointerException\n\n\/\/ \u6b63\u3057\u3044\u5b9f\u88c5\nList&lt;String&gt; spyList = spy(new ArrayList&lt;&gt;());  \/\/ \u5b9f\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u6307\u5b9a\u304c\u5fc5\u8981<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-47\">\u30e2\u30c3\u30af\u306e\u691c\u8a3c\u5931\u6557\u6642\u306e\u30c7\u30d0\u30c3\u30b0\u65b9\u6cd5<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-48\">1. \u5f15\u6570\u30de\u30c3\u30c1\u30e3\u30fc\u306e\u4e0d\u4e00\u81f4<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@Test\nvoid testArgumentMatching() {\n    UserService userService = mock(UserService.class);\n\n    \/\/ \u554f\u984c\u306e\u3042\u308b\u30b3\u30fc\u30c9\n    when(userService.findUser(1L, \"test\"))  \/\/ \u5177\u4f53\u7684\u306a\u5024\u3092\u4f7f\u7528\n        .thenReturn(new User());\n\n    \/\/ \u6b63\u3057\u3044\u5b9f\u88c5\n    when(userService.findUser(eq(1L), anyString()))  \/\/ \u30de\u30c3\u30c1\u30e3\u30fc\u3092\u4f7f\u7528\n        .thenReturn(new User());\n\n    \/\/ \u691c\u8a3c\u6642\u306e\u30c7\u30d0\u30c3\u30b0\n    verify(userService, times(1)).findUser(\n        argThat(arg -&gt; {\n            System.out.println(\"Actual argument: \" + arg);  \/\/ \u5b9f\u969b\u306e\u5f15\u6570\u3092\u51fa\u529b\n            return arg.equals(1L);\n        }),\n        anyString()\n    );\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-49\">2. \u691c\u8a3c\u9806\u5e8f\u306e\u554f\u984c<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@Test\nvoid testVerificationOrder() {\n    UserService userService = mock(UserService.class);\n\n    \/\/ \u5b9f\u884c\n    userService.createUser(new User());\n    userService.updateUser(new User());\n\n    \/\/ \u554f\u984c\u306e\u3042\u308b\u691c\u8a3c\uff08\u9806\u5e8f\u304c\u91cd\u8981\u306a\u5834\u5408\uff09\n    InOrder inOrder = inOrder(userService);\n    inOrder.verify(userService).updateUser(any());  \/\/ \u9806\u5e8f\u9055\u53cd\n    inOrder.verify(userService).createUser(any());\n\n    \/\/ \u30c7\u30d0\u30c3\u30b0\u306e\u305f\u3081\u306e\u691c\u8a3c\n    Mockito.verifyNoMoreInteractions(userService);  \/\/ \u672a\u691c\u8a3c\u306e\u547c\u3073\u51fa\u3057\u3092\u78ba\u8a8d\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-50\">\u30c6\u30b9\u30c8\u306e\u5b9f\u884c\u901f\u5ea6\u6539\u5584\u30c6\u30af\u30cb\u30c3\u30af<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-51\">1. \u30c6\u30b9\u30c8\u30b9\u30a4\u30fc\u30c8\u306e\u6700\u9069\u5316<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u9045\u3044\u30c6\u30b9\u30c8\u5b9f\u88c5\n@Test\nvoid slowTest() throws InterruptedException {\n    Thread.sleep(1000);  \/\/ \u4e0d\u8981\u306a\u5f85\u6a5f\u6642\u9593\n    verify(userService).process();\n}\n\n\/\/ \u6700\u9069\u5316\u3055\u308c\u305f\u30c6\u30b9\u30c8\n@Test\nvoid optimizedTest() {\n    \/\/ \u975e\u540c\u671f\u51e6\u7406\u306e\u30c6\u30b9\u30c8\u6539\u5584\n    CompletableFuture&lt;User&gt; future = userService.processAsync();\n    User result = future.join();  \/\/ \u5fc5\u8981\u306a\u5f85\u6a5f\u306e\u307f\n\n    verify(userService).processAsync();\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-52\">2. \u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6539\u5584\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@TestInstance(TestInstance.Lifecycle.PER_CLASS)  \/\/ \u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u751f\u6210\u306e\u6700\u9069\u5316\npublic class OptimizedTest {\n    private static UserService userService;  \/\/ \u5171\u6709\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\n\n    @BeforeAll\n    void setup() {\n        userService = mock(UserService.class);  \/\/ \u4e00\u5ea6\u3060\u3051\u521d\u671f\u5316\n    }\n\n    @Test\n    void test1() {\n        \/\/ \u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\n    }\n\n    @Test\n    void test2() {\n        \/\/ \u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\n    }\n}<\/pre>\n\n\n\n<div class=\"wp-block-sgb-message\"><div class=\"memo sng-shadow-0\" style=\"border-radius:0px;background-color:#fff9e6;color:#ffb36b\"><div class=\"memo_ttl dfont\"><span class=\"sng-box-msg__icon\" style=\"background:#ffb36b\"><i class=\"fas fa-pencil-alt\"><\/i><\/span><div class=\"sng-box-msg__title\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6539\u5584\u306e\u305f\u3081\u306e\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8<\/div><\/div><div class=\"sng-box-msg__contents\"><div id=\"id-f57e4738-3747-49d5-aa79-4dd426d36ccc\">\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u6539\u5584\u9805\u76ee<\/th><th>\u5b9f\u88c5\u65b9\u6cd5<\/th><th>\u671f\u5f85\u52b9\u679c<\/th><\/tr><\/thead><tbody><tr><td>\u30c6\u30b9\u30c8\u306e\u72ec\u7acb\u6027<\/td><td><code>@DirtiesContext<\/code>\u306e\u9069\u5207\u306a\u4f7f\u7528<\/td><td>\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u306e\u518d\u5229\u7528\u306b\u3088\u308b\u9ad8\u901f\u5316<\/td><\/tr><tr><td>\u30e2\u30c3\u30af\u306e\u518d\u5229\u7528<\/td><td>\u9759\u7684\u30d5\u30a3\u30fc\u30eb\u30c9\u3067\u306e\u30e2\u30c3\u30af\u5171\u6709<\/td><td>\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u751f\u6210\u30b3\u30b9\u30c8\u306e\u524a\u6e1b<\/td><\/tr><tr><td>\u975e\u540c\u671f\u51e6\u7406\u306e\u6700\u9069\u5316<\/td><td><code>CompletableFuture<\/code>\u3084<code>ReactiveStream<\/code>\u306e\u6d3b\u7528<\/td><td>\u5f85\u6a5f\u6642\u9593\u306e\u6700\u5c0f\u5316<\/td><\/tr><tr><td>\u30c6\u30b9\u30c8\u30c7\u30fc\u30bf\u306e\u6700\u9069\u5316<\/td><td>\u5fc5\u8981\u6700\u5c0f\u9650\u306e\u30c7\u30fc\u30bf\u30bb\u30c3\u30c8\u4f5c\u6210<\/td><td>\u30e1\u30e2\u30ea\u4f7f\u7528\u91cf\u306e\u524a\u6e1b<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div><\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-sgb-block-simple sgb-box-simple sgb-box-simple--title-normal sgb-box-simple--with-border\"><div style=\"background-color:var(--wp--preset--color--sango-main);color:#FFF\" class=\"sgb-box-simple__title\">\u4e3b\u306a\u30c8\u30e9\u30d6\u30eb\u3068\u89e3\u6c7a\u65b9\u6cd5\u306e\u307e\u3068\u3081<\/div><div class=\"sgb-box-simple__body\" style=\"border-color:var(--wp--preset--color--sango-main);background-color:#FFF\">\n<ol class=\"wp-block-list\">\n<li><strong>NullPointerException\u5bfe\u7b56<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u30e2\u30c3\u30af\u306e\u9069\u5207\u306a\u521d\u671f\u5316\u78ba\u8a8d<\/li>\n\n\n\n<li>\u623b\u308a\u5024\u306e\u660e\u793a\u7684\u306a\u8a2d\u5b9a<\/li>\n\n\n\n<li>Optional\u6d3b\u7528\u306b\u3088\u308bnull\u5b89\u5168\u6027\u306e\u78ba\u4fdd<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u691c\u8a3c\u5931\u6557\u306e\u5bfe\u51e6<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u5f15\u6570\u30de\u30c3\u30c1\u30e3\u30fc\u306e\u9069\u5207\u306a\u4f7f\u7528<\/li>\n\n\n\n<li>\u691c\u8a3c\u9806\u5e8f\u306e\u660e\u78ba\u5316<\/li>\n\n\n\n<li>\u30c7\u30d0\u30c3\u30b0\u60c5\u5831\u306e\u51fa\u529b\u5f37\u5316<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6700\u9069\u5316<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u30c6\u30b9\u30c8\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u306e\u30e9\u30a4\u30d5\u30b5\u30a4\u30af\u30eb\u7ba1\u7406<\/li>\n\n\n\n<li>\u975e\u540c\u671f\u51e6\u7406\u306e\u52b9\u7387\u7684\u306a\u30c6\u30b9\u30c8<\/li>\n\n\n\n<li>\u9069\u5207\u306a\u30c6\u30b9\u30c8\u30c7\u30fc\u30bf\u8a2d\u8a08<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<\/div><\/div>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u554f\u984c\u306b\u9069\u5207\u306b\u5bfe\u51e6\u3059\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u4fe1\u983c\u6027\u304c\u9ad8\u304f\u3001\u4fdd\u5b88\u6027\u306e\u826f\u3044\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002\u7279\u306b\u3001\u30c7\u30d0\u30c3\u30b0\u60c5\u5831\u306e\u9069\u5207\u306a\u6d3b\u7528\u3068\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6700\u9069\u5316\u306f\u3001\u9577\u671f\u7684\u306a\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u6210\u529f\u306b\u5927\u304d\u304f\u8ca2\u732e\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-53\">Mockito\u3092\u4f7f\u3063\u305f\u958b\u767a\u52b9\u7387\u5316\u30c6\u30af\u30cb\u30c3\u30af<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-54\">\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u306e\u518d\u5229\u7528\u30d1\u30bf\u30fc\u30f3<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-55\">1. \u30c6\u30b9\u30c8\u30d5\u30a3\u30af\u30b9\u30c1\u30e3\u306e\u5171\u6709<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@ExtendWith(MockitoExtension.class)\npublic abstract class BaseUserTest {\n    @Mock\n    protected UserRepository userRepository;\n    @Mock\n    protected EmailService emailService;\n\n    \/\/ \u5171\u901a\u306e\u30e2\u30c3\u30af\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\n    protected void setupCommonMocks() {\n        when(userRepository.findById(anyLong()))\n            .thenReturn(Optional.of(new User(\"test-user\")));\n        when(emailService.sendEmail(anyString(), anyString()))\n            .thenReturn(true);\n    }\n\n    \/\/ \u5171\u901a\u306e\u691c\u8a3c\u30ed\u30b8\u30c3\u30af\n    protected void verifyEmailNotification(String email) {\n        verify(emailService).sendEmail(\n            eq(email),\n            contains(\"notification\")\n        );\n    }\n}\n\n\/\/ \u5177\u4f53\u7684\u306a\u30c6\u30b9\u30c8\u30af\u30e9\u30b9\npublic class UserServiceTest extends BaseUserTest {\n    @InjectMocks\n    private UserService userService;\n\n    @Test\n    void testUserUpdate() {\n        setupCommonMocks();  \/\/ \u5171\u901a\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\u306e\u5229\u7528\n        userService.updateUser(1L, \"new@example.com\");\n        verifyEmailNotification(\"new@example.com\");  \/\/ \u5171\u901a\u691c\u8a3c\u306e\u5229\u7528\n    }\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-56\">2. \u30c6\u30b9\u30c8\u30c7\u30fc\u30bf\u30d3\u30eb\u30c0\u30fc<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">public class UserTestBuilder {\n    private Long id = 1L;\n    private String name = \"default-name\";\n    private String email = \"default@example.com\";\n    private UserStatus status = UserStatus.ACTIVE;\n\n    public static UserTestBuilder aUser() {\n        return new UserTestBuilder();\n    }\n\n    public UserTestBuilder withId(Long id) {\n        this.id = id;\n        return this;\n    }\n\n    public UserTestBuilder withName(String name) {\n        this.name = name;\n        return this;\n    }\n\n    public UserTestBuilder withEmail(String email) {\n        this.email = email;\n        return this;\n    }\n\n    public User build() {\n        User user = new User();\n        user.setId(id);\n        user.setName(name);\n        user.setEmail(email);\n        user.setStatus(status);\n        return user;\n    }\n}\n\n\/\/ \u30c6\u30b9\u30c8\u3067\u306e\u4f7f\u7528\u4f8b\n@Test\nvoid testUserCreation() {\n    User testUser = UserTestBuilder.aUser()\n        .withName(\"Test User\")\n        .withEmail(\"test@example.com\")\n        .build();\n\n    when(userRepository.save(any(User.class)))\n        .thenReturn(testUser);\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-57\">\u30ab\u30b9\u30bf\u30e0\u30de\u30c3\u30c1\u30e3\u30fc\u306e\u4f5c\u6210\u65b9\u6cd5<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-58\">1. \u57fa\u672c\u7684\u306a\u30ab\u30b9\u30bf\u30e0\u30de\u30c3\u30c1\u30e3\u30fc<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">public class UserMatcher implements ArgumentMatcher&lt;User&gt; {\n    private final String expectedEmail;\n\n    public UserMatcher(String expectedEmail) {\n        this.expectedEmail = expectedEmail;\n    }\n\n    @Override\n    public boolean matches(User user) {\n        return user != null &amp;&amp; \n               expectedEmail.equals(user.getEmail());\n    }\n\n    @Override\n    public String toString() {\n        return \"User with email: \" + expectedEmail;\n    }\n}\n\n\/\/ \u4f7f\u7528\u4f8b\n@Test\nvoid testUserMatching() {\n    User user = new User(\"test@example.com\");\n    ArgumentMatcher&lt;User&gt; matcher = new UserMatcher(\"test@example.com\");\n\n    when(userRepository.save(argThat(matcher)))\n        .thenReturn(user);\n\n    userService.createUser(user);\n    verify(userRepository).save(argThat(matcher));\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-59\">2. \u6c4e\u7528\u7684\u306a\u30de\u30c3\u30c1\u30e3\u30fc\u30d5\u30a1\u30af\u30c8\u30ea\u30fc<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">public class CustomMatchers {\n    public static ArgumentMatcher&lt;User&gt; hasEmail(String email) {\n        return new UserMatcher(email);\n    }\n\n    public static ArgumentMatcher&lt;User&gt; hasValidAge() {\n        return user -&gt; user != null &amp;&amp; user.getAge() &gt;= 0 &amp;&amp; user.getAge() &lt;= 120;\n    }\n\n    public static &lt;T&gt; ArgumentMatcher&lt;List&lt;T&gt;&gt; hasSize(int size) {\n        return list -&gt; list != null &amp;&amp; list.size() == size;\n    }\n}\n\n\/\/ \u4f7f\u7528\u4f8b\n@Test\nvoid testCustomMatchers() {\n    when(userRepository.findByEmail(argThat(hasEmail(\"test@example.com\"))))\n        .thenReturn(Optional.of(new User()));\n\n    verify(userRepository).saveAll(argThat(hasSize(2)));\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-60\">\u30c6\u30b9\u30c8\u53ef\u80fd\u306a\u8a2d\u8a08\u3078\u306e\u6539\u5584\u65b9\u6cd5<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-61\">1. \u4f9d\u5b58\u6027\u306e\u660e\u78ba\u5316\u3068\u6ce8\u5165<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u6539\u5584\u524d\u306e\u30b3\u30fc\u30c9\npublic class UserService {\n    private final UserRepository userRepository = new UserRepository();  \/\/ \u76f4\u63a5\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u5316\n\n    public User createUser(String name) {\n        return userRepository.save(new User(name));\n    }\n}\n\n\/\/ \u6539\u5584\u5f8c\u306e\u30b3\u30fc\u30c9\npublic class UserService {\n    private final UserRepository userRepository;\n    private final EmailService emailService;\n\n    @Autowired  \/\/ \u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u6ce8\u5165\n    public UserService(UserRepository userRepository, EmailService emailService) {\n        this.userRepository = userRepository;\n        this.emailService = emailService;\n    }\n\n    public User createUser(String name) {\n        User user = userRepository.save(new User(name));\n        emailService.sendWelcomeEmail(user.getEmail());\n        return user;\n    }\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-62\">2. \u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306e\u6d3b\u7528<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u5b9a\u7fa9\npublic interface EmailService {\n    void sendWelcomeEmail(String email);\n    void sendNotification(String email, String message);\n}\n\n\/\/ \u5b9f\u88c5\u30af\u30e9\u30b9\n@Service\npublic class EmailServiceImpl implements EmailService {\n    @Override\n    public void sendWelcomeEmail(String email) {\n        \/\/ \u5b9f\u88c5\n    }\n\n    @Override\n    public void sendNotification(String email, String message) {\n        \/\/ \u5b9f\u88c5\n    }\n}\n\n\/\/ \u30c6\u30b9\u30c8\u3067\u306e\u6d3b\u7528\n@Test\nvoid testEmailNotification() {\n    EmailService mockEmailService = mock(EmailService.class);\n    UserService userService = new UserService(userRepository, mockEmailService);\n\n    userService.createUser(\"test-user\");\n\n    verify(mockEmailService).sendWelcomeEmail(anyString());\n}<\/pre>\n\n\n\n<div class=\"wp-block-sgb-message\"><div class=\"memo sng-shadow-0\" style=\"border-radius:0px;background-color:#fff9e6;color:#ffb36b\"><div class=\"memo_ttl dfont\"><span class=\"sng-box-msg__icon\" style=\"background:#ffb36b\"><i class=\"fas fa-pencil-alt\"><\/i><\/span><div class=\"sng-box-msg__title\">\u30c6\u30b9\u30c8\u53ef\u80fd\u6027\u5411\u4e0a\u306e\u305f\u3081\u306e\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8<\/div><\/div><div class=\"sng-box-msg__contents\">\n<ol class=\"wp-block-list\">\n<li><strong>\u4f9d\u5b58\u6027\u306e\u5916\u90e8\u5316<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u6ce8\u5165\u306e\u4f7f\u7528<\/li>\n\n\n\n<li>\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306e\u6d3b\u7528<\/li>\n\n\n\n<li>static \u30e1\u30bd\u30c3\u30c9\u306e\u6700\u5c0f\u5316<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u526f\u4f5c\u7528\u306e\u5206\u96e2<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u30d3\u30b8\u30cd\u30b9\u30ed\u30b8\u30c3\u30af\u3068I\/O\u51e6\u7406\u306e\u5206\u96e2<\/li>\n\n\n\n<li>\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u5883\u754c\u306e\u660e\u78ba\u5316<\/li>\n\n\n\n<li>\u72b6\u614b\u5909\u66f4\u306e\u8ffd\u8de1\u53ef\u80fd\u6027<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u30c6\u30b9\u30c8\u30d5\u30c3\u30af\u306e\u63d0\u4f9b<\/strong>\n<ul class=\"wp-block-list\">\n<li>protected \u30e1\u30bd\u30c3\u30c9\u306e\u9069\u5207\u306a\u6d3b\u7528<\/li>\n\n\n\n<li>\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u30dd\u30a4\u30f3\u30c8\u306e\u660e\u78ba\u5316<\/li>\n\n\n\n<li>\u30e2\u30c3\u30af\u53ef\u80fd\u306a\u30b3\u30fc\u30eb\u30d0\u30c3\u30af<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<\/div><\/div><\/div>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u30c6\u30af\u30cb\u30c3\u30af\u3092\u9069\u5207\u306b\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u30c6\u30b9\u30c8\u306e\u4fdd\u5b88\u6027\u3068\u518d\u5229\u7528\u6027\u3092\u5927\u304d\u304f\u5411\u4e0a\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u7279\u306b\u3001\u30ab\u30b9\u30bf\u30e0\u30de\u30c3\u30c1\u30e3\u30fc\u3068\u30c6\u30b9\u30c8\u30c7\u30fc\u30bf\u30d3\u30eb\u30c0\u30fc\u306e\u6d3b\u7528\u306f\u3001\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u306e\u8868\u73fe\u529b\u3068\u53ef\u8aad\u6027\u3092\u9ad8\u3081\u308b\u52b9\u679c\u7684\u306a\u65b9\u6cd5\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-63\">\u5b9f\u8df5\u7684\u306a\u30e6\u30cb\u30c3\u30c8\u30c6\u30b9\u30c8\u4e8b\u4f8b6\u9078<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-64\">REST\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30fc\u306e\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u4f8b<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-65\">1. \u30e6\u30fc\u30b6\u30fc\u767b\u9332API\u306e\u30c6\u30b9\u30c8<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@WebMvcTest(UserController.class)\nclass UserControllerTest {\n    @Autowired\n    private MockMvc mockMvc;\n\n    @MockBean\n    private UserService userService;\n\n    @Test\n    void testCreateUser() throws Exception {\n        \/\/ \u30c6\u30b9\u30c8\u30c7\u30fc\u30bf\u6e96\u5099\n        UserDTO userDTO = new UserDTO(\"test-user\", \"test@example.com\");\n        User createdUser = new User(1L, \"test-user\", \"test@example.com\");\n\n        when(userService.createUser(any(UserDTO.class)))\n            .thenReturn(createdUser);\n\n        \/\/ API\u30ea\u30af\u30a8\u30b9\u30c8\u306e\u5b9f\u884c\u3068\u691c\u8a3c\n        mockMvc.perform(post(\"\/api\/users\")\n            .contentType(MediaType.APPLICATION_JSON)\n            .content(new ObjectMapper().writeValueAsString(userDTO)))\n            .andExpect(status().isCreated())\n            .andExpect(jsonPath(\"$.id\").value(1))\n            .andExpect(jsonPath(\"$.name\").value(\"test-user\"))\n            .andExpect(jsonPath(\"$.email\").value(\"test@example.com\"));\n    }\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-66\">2. \u30a8\u30e9\u30fc\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0\u306e\u30c6\u30b9\u30c8<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@Test\nvoid testUserNotFound() throws Exception {\n    when(userService.getUser(999L))\n        .thenThrow(new UserNotFoundException(\"User not found\"));\n\n    mockMvc.perform(get(\"\/api\/users\/999\")\n        .contentType(MediaType.APPLICATION_JSON))\n        .andExpect(status().isNotFound())\n        .andExpect(jsonPath(\"$.message\").value(\"User not found\"))\n        .andExpect(jsonPath(\"$.timestamp\").exists());\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-67\">\u30b5\u30fc\u30d3\u30b9\u30ec\u30a4\u30e4\u30fc\u306e\u30c6\u30b9\u30c8\u30d1\u30bf\u30fc\u30f3<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-68\">1. \u30e6\u30fc\u30b6\u30fc\u8a8d\u8a3c\u30b5\u30fc\u30d3\u30b9\u306e\u30c6\u30b9\u30c8<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@ExtendWith(MockitoExtension.class)\nclass AuthenticationServiceTest {\n    @Mock\n    private UserRepository userRepository;\n    @Mock\n    private PasswordEncoder passwordEncoder;\n\n    @InjectMocks\n    private AuthenticationService authService;\n\n    @Test\n    void testSuccessfulAuthentication() {\n        \/\/ \u30c6\u30b9\u30c8\u30c7\u30fc\u30bf\u6e96\u5099\n        String email = \"test@example.com\";\n        String password = \"password123\";\n        User user = new User(email, \"hashedPassword\");\n\n        when(userRepository.findByEmail(email))\n            .thenReturn(Optional.of(user));\n        when(passwordEncoder.matches(password, user.getPassword()))\n            .thenReturn(true);\n\n        \/\/ \u8a8d\u8a3c\u5b9f\u884c\u3068\u691c\u8a3c\n        AuthenticationResult result = authService.authenticate(email, password);\n\n        assertTrue(result.isSuccess());\n        assertEquals(user, result.getUser());\n    }\n\n    @Test\n    void testFailedAuthentication() {\n        when(userRepository.findByEmail(anyString()))\n            .thenReturn(Optional.empty());\n\n        AuthenticationResult result = authService.authenticate(\n            \"wrong@example.com\", \"wrongpass\");\n\n        assertFalse(result.isSuccess());\n        assertNull(result.getUser());\n    }\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-69\">2. \u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u51e6\u7406\u306e\u30c6\u30b9\u30c8<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@ExtendWith(MockitoExtension.class)\nclass TransferServiceTest {\n    @Mock\n    private AccountRepository accountRepository;\n    @Mock\n    private TransactionRepository transactionRepository;\n\n    @InjectMocks\n    private TransferService transferService;\n\n    @Test\n    void testSuccessfulTransfer() {\n        \/\/ \u30c6\u30b9\u30c8\u30c7\u30fc\u30bf\u6e96\u5099\n        Account sourceAccount = new Account(1L, \"source\", 1000.0);\n        Account targetAccount = new Account(2L, \"target\", 500.0);\n\n        when(accountRepository.findById(1L))\n            .thenReturn(Optional.of(sourceAccount));\n        when(accountRepository.findById(2L))\n            .thenReturn(Optional.of(targetAccount));\n\n        \/\/ \u9001\u91d1\u5b9f\u884c\u3068\u691c\u8a3c\n        TransferResult result = transferService.transfer(1L, 2L, 300.0);\n\n        assertTrue(result.isSuccess());\n        assertEquals(700.0, sourceAccount.getBalance());\n        assertEquals(800.0, targetAccount.getBalance());\n        verify(accountRepository, times(2)).save(any(Account.class));\n        verify(transactionRepository).save(any(Transaction.class));\n    }\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-70\">\u30ea\u30dd\u30b8\u30c8\u30ea\u30ec\u30a4\u30e4\u30fc\u306e\u30e2\u30c3\u30af\u6d3b\u7528\u4f8b<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-71\">1. \u8907\u5408\u6761\u4ef6\u3067\u306e\u691c\u7d22\u30c6\u30b9\u30c8<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@ExtendWith(MockitoExtension.class)\nclass UserRepositoryTest {\n    @Mock\n    private JpaRepository&lt;User, Long&gt; jpaRepository;\n\n    @InjectMocks\n    private CustomUserRepository userRepository;\n\n    @Test\n    void testFindActiveUsersByRole() {\n        \/\/ \u30c6\u30b9\u30c8\u30c7\u30fc\u30bf\u6e96\u5099\n        List&lt;User&gt; activeAdmins = Arrays.asList(\n            new User(\"admin1\", Role.ADMIN),\n            new User(\"admin2\", Role.ADMIN)\n        );\n\n        when(jpaRepository.findAll(any(Specification.class)))\n            .thenReturn(activeAdmins);\n\n        \/\/ \u691c\u7d22\u5b9f\u884c\u3068\u691c\u8a3c\n        List&lt;User&gt; result = userRepository.findActiveUsersByRole(Role.ADMIN);\n\n        assertEquals(2, result.size());\n        assertTrue(result.stream()\n            .allMatch(user -&gt; user.getRole() == Role.ADMIN));\n    }\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-72\">2. \u30da\u30fc\u30b8\u30f3\u30b0\u51e6\u7406\u306e\u30c6\u30b9\u30c8<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@Test\nvoid testFindUsersWithPagination() {\n    \/\/ \u30c6\u30b9\u30c8\u30c7\u30fc\u30bf\u6e96\u5099\n    Page&lt;User&gt; userPage = new PageImpl&lt;&gt;(\n        Arrays.asList(new User(\"user1\"), new User(\"user2\")),\n        PageRequest.of(0, 10),\n        2\n    );\n\n    when(jpaRepository.findAll(any(Pageable.class)))\n        .thenReturn(userPage);\n\n    \/\/ \u30da\u30fc\u30b8\u30f3\u30b0\u691c\u7d22\u5b9f\u884c\u3068\u691c\u8a3c\n    Page&lt;User&gt; result = userRepository.findUsers(PageRequest.of(0, 10));\n\n    assertEquals(2, result.getContent().size());\n    assertEquals(1, result.getTotalPages());\n    assertEquals(2, result.getTotalElements());\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-73\">\u5b9f\u8df5\u7684\u306a\u30c6\u30b9\u30c8\u30b1\u30fc\u30b9\u306e\u307e\u3068\u3081<\/h3>\n\n\n\n<p class=\"is-style-sango-paragraph-idea-alt\"><strong>\u30c6\u30b9\u30c8\u8a2d\u8a08\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30fc\u30ec\u30a4\u30e4\u30fc<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u30ea\u30af\u30a8\u30b9\u30c8\/\u30ec\u30b9\u30dd\u30f3\u30b9\u306e\u691c\u8a3c<\/li>\n\n\n\n<li>\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u306e\u78ba\u8a8d<\/li>\n\n\n\n<li>\u30a8\u30e9\u30fc\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0\u306e\u7db2\u7f85<\/li>\n\n\n\n<li>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u95a2\u9023\u306e\u30c6\u30b9\u30c8<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u30b5\u30fc\u30d3\u30b9\u30ec\u30a4\u30e4\u30fc<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u30d3\u30b8\u30cd\u30b9\u30ed\u30b8\u30c3\u30af\u306e\u691c\u8a3c<\/li>\n\n\n\n<li>\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u51e6\u7406\u306e\u78ba\u8a8d<\/li>\n\n\n\n<li>\u4f8b\u5916\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0\u306e\u78ba\u8a8d<\/li>\n\n\n\n<li>\u4f9d\u5b58\u30b5\u30fc\u30d3\u30b9\u306e\u9069\u5207\u306a\u30e2\u30c3\u30af\u5316<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u30ea\u30dd\u30b8\u30c8\u30ea\u30ec\u30a4\u30e4\u30fc<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u30af\u30a8\u30ea\u7d50\u679c\u306e\u691c\u8a3c<\/li>\n\n\n\n<li>\u30da\u30fc\u30b8\u30f3\u30b0\/\u30bd\u30fc\u30c8\u306e\u52d5\u4f5c\u78ba\u8a8d<\/li>\n\n\n\n<li>\u30c7\u30fc\u30bf\u6574\u5408\u6027\u306e\u691c\u8a3c<\/li>\n\n\n\n<li>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u8003\u616e<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<p class=\"is-style-sango-paragraph-memo-alt\"><strong>\u52b9\u679c\u7684\u306a\u30c6\u30b9\u30c8\u30b1\u30fc\u30b9\u8a2d\u8a08\u306e\u30dd\u30a4\u30f3\u30c8<\/strong><\/p>\n\n\n<div id=\"id-da5d09f3-14b1-41bd-a930-0f633b623cb9\">\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u89b3\u70b9<\/th><th>\u691c\u8a3c\u30dd\u30a4\u30f3\u30c8<\/th><th>\u5b9f\u88c5\u65b9\u6cd5<\/th><\/tr><\/thead><tbody><tr><td>\u6a5f\u80fd\u6027<\/td><td>\u57fa\u672c\u6a5f\u80fd\u306e\u52d5\u4f5c<\/td><td>\u6b63\u5e38\u7cfb\u30c6\u30b9\u30c8\u306e\u5145\u5b9f<\/td><\/tr><tr><td>\u5805\u7262\u6027<\/td><td>\u30a8\u30e9\u30fc\u51e6\u7406<\/td><td>\u7570\u5e38\u7cfb\u30c6\u30b9\u30c8\u306e\u7db2\u7f85<\/td><\/tr><tr><td>\u6027\u80fd<\/td><td>\u5fdc\u7b54\u6642\u9593\/\u30ea\u30bd\u30fc\u30b9<\/td><td>\u8ca0\u8377\u30c6\u30b9\u30c8\u306e\u5b9f\u88c5<\/td><\/tr><tr><td>\u4fdd\u5b88\u6027<\/td><td>\u30b3\u30fc\u30c9\u306e\u54c1\u8cea<\/td><td>\u30c6\u30b9\u30c8\u306e\u53ef\u8aad\u6027\u5411\u4e0a<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n<p>\u3053\u308c\u3089\u306e\u30c6\u30b9\u30c8\u30b1\u30fc\u30b9\u3092\u9069\u5207\u306b\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u54c1\u8cea\u3092\u52b9\u679c\u7684\u306b\u62c5\u4fdd\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u7279\u306b\u3001\u5404\u30ec\u30a4\u30e4\u30fc\u306e\u8cac\u52d9\u306b\u5fdc\u3058\u305f\u30c6\u30b9\u30c8\u306e\u8a2d\u8a08\u3068\u5b9f\u88c5\u306f\u3001\u9577\u671f\u7684\u306a\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u6027\u306e\u5411\u4e0a\u306b\u5927\u304d\u304f\u8ca2\u732e\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-74\">\u307e\u3068\u3081\uff1a\u52b9\u679c\u7684\u306a\u30e6\u30cb\u30c3\u30c8\u30c6\u30b9\u30c8\u5b9f\u88c5\u306b\u5411\u3051\u3066<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-75\">\u672c\u8a18\u4e8b\u306e\u30dd\u30a4\u30f3\u30c8\u6574\u7406<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Mockito\u306e\u57fa\u672c\u3068\u7279\u5fb4<\/strong>\n<ul class=\"wp-block-list\">\n<li>Java\u696d\u754c\u3067\u6700\u3082\u4f7f\u308f\u308c\u3066\u3044\u308b\u30e2\u30c3\u30af\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af<\/li>\n\n\n\n<li>\u76f4\u611f\u7684\u306aAPI\u8a2d\u8a08\u306b\u3088\u308b\u9ad8\u3044\u751f\u7523\u6027<\/li>\n\n\n\n<li>Spring Framework \u3068\u306e\u512a\u308c\u305f\u89aa\u548c\u6027<\/li>\n\n\n\n<li>\u8c4a\u5bcc\u306a\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\u30b5\u30dd\u30fc\u30c8<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u5b9f\u88c5\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u30e2\u30c3\u30af\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u9069\u5207\u306a\u521d\u671f\u5316\u3068\u7ba1\u7406<\/li>\n\n\n\n<li>\u30b9\u30bf\u30d6\u306e\u52b9\u679c\u7684\u306a\u6d3b\u7528\u65b9\u6cd5<\/li>\n\n\n\n<li>\u5f15\u6570\u30de\u30c3\u30c1\u30e3\u30fc\u306b\u3088\u308b\u67d4\u8edf\u306a\u30c6\u30b9\u30c8\u5b9f\u88c5<\/li>\n\n\n\n<li>\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u306e\u518d\u5229\u7528\u6027\u5411\u4e0a\u30c6\u30af\u30cb\u30c3\u30af<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u5b9f\u8df5\u7684\u306a\u30c6\u30b9\u30c8\u30d1\u30bf\u30fc\u30f3<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u5404\u30ec\u30a4\u30e4\u30fc\uff08Controller\/Service\/Repository\uff09\u306b\u9069\u3057\u305f\u30c6\u30b9\u30c8\u8a2d\u8a08<\/li>\n\n\n\n<li>\u5916\u90e8\u4f9d\u5b58\u306e\u9069\u5207\u306a\u30e2\u30c3\u30af\u5316<\/li>\n\n\n\n<li>\u4f8b\u5916\u51e6\u7406\u3068\u30a8\u30e9\u30fc\u30b1\u30fc\u30b9\u306e\u30c6\u30b9\u30c8<\/li>\n\n\n\n<li>\u975e\u540c\u671f\u51e6\u7406\u306e\u30c6\u30b9\u30c8\u624b\u6cd5<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-76\">Mockito\u3092\u6d3b\u7528\u3057\u305f\u30c6\u30b9\u30c8\u5b9f\u88c5\u306e\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8<\/h3>\n\n\n\n<p>\u2705 <strong>\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>[ ] \u9069\u5207\u306a\u30d0\u30fc\u30b8\u30e7\u30f3\u306eMockito\u5c0e\u5165<\/li>\n\n\n\n<li>[ ] JUnit 5\u3068\u306e\u9023\u643a\u8a2d\u5b9a<\/li>\n\n\n\n<li>[ ] Spring Boot\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u306e\u8a2d\u5b9a\u78ba\u8a8d<\/li>\n<\/ul>\n\n\n\n<p>\u2705 <strong>\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u54c1\u8cea<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>[ ] \u30c6\u30b9\u30c8\u306e\u53ef\u8aad\u6027\u78ba\u4fdd<\/li>\n\n\n\n<li>[ ] \u9069\u5207\u306a\u7c92\u5ea6\u3067\u306e\u30c6\u30b9\u30c8\u30b1\u30fc\u30b9\u5206\u5272<\/li>\n\n\n\n<li>[ ] \u30e2\u30c3\u30af\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u660e\u78ba\u306a\u5f79\u5272\u5b9a\u7fa9<\/li>\n\n\n\n<li>[ ] \u30c6\u30b9\u30c8\u30c7\u30fc\u30bf\u306e\u9069\u5207\u306a\u6e96\u5099<\/li>\n<\/ul>\n\n\n\n<p>\u2705 <strong>\u4fdd\u5b88\u6027\u5411\u4e0a<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>[ ] \u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u306e\u518d\u5229\u7528\u30d1\u30bf\u30fc\u30f3\u6d3b\u7528<\/li>\n\n\n\n<li>[ ] \u30ab\u30b9\u30bf\u30e0\u30de\u30c3\u30c1\u30e3\u30fc\u306e\u9069\u5207\u306a\u5b9f\u88c5<\/li>\n\n\n\n<li>[ ] \u30c6\u30b9\u30c8\u53ef\u80fd\u306a\u8a2d\u8a08\u3078\u306e\u6539\u5584<\/li>\n\n\n\n<li>[ ] \u52b9\u7387\u7684\u306a\u30c6\u30b9\u30c8\u30b9\u30a4\u30fc\u30c8\u306e\u69cb\u7bc9<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-77\">\u4eca\u5f8c\u306e\u5b66\u7fd2\u30dd\u30a4\u30f3\u30c8<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u5fdc\u7528\u7684\u306a\u30c6\u30b9\u30c8\u624b\u6cd5<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u30e2\u30c3\u30af\u3092\u6d3b\u7528\u3057\u305fTDD\uff08\u30c6\u30b9\u30c8\u99c6\u52d5\u958b\u767a\uff09\u306e\u5b9f\u8df5<\/li>\n\n\n\n<li>\u30de\u30a4\u30af\u30ed\u30b5\u30fc\u30d3\u30b9\u306e\u30c6\u30b9\u30c8\u6226\u7565<\/li>\n\n\n\n<li>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u30c6\u30b9\u30c8\u3068\u306e\u7d44\u307f\u5408\u308f\u305b<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u30c6\u30b9\u30c8\u81ea\u52d5\u5316\u3068\u306e\u7d71\u5408<\/strong>\n<ul class=\"wp-block-list\">\n<li>CI\/CD\u30d1\u30a4\u30d7\u30e9\u30a4\u30f3\u3067\u306e\u52b9\u679c\u7684\u306a\u6d3b\u7528<\/li>\n\n\n\n<li>\u30c6\u30b9\u30c8\u30ab\u30d0\u30ec\u30c3\u30b8\u306e\u7d99\u7d9a\u7684\u306a\u76e3\u8996<\/li>\n\n\n\n<li>\u30c6\u30b9\u30c8\u7d50\u679c\u306e\u53ef\u8996\u5316\u3068\u5206\u6790<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u30c1\u30fc\u30e0\u958b\u767a\u3067\u306e\u6d3b\u7528<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u30c6\u30b9\u30c8\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u898f\u7d04\u306e\u78ba\u7acb<\/li>\n\n\n\n<li>\u30b3\u30fc\u30c9\u30ec\u30d3\u30e5\u30fc\u3067\u306e\u30c6\u30b9\u30c8\u54c1\u8cea\u30c1\u30a7\u30c3\u30af<\/li>\n\n\n\n<li>\u30ca\u30ec\u30c3\u30b8\u5171\u6709\u3068\u80b2\u6210\u8a08\u753b<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-78\">\u6700\u5f8c\u306b<\/h3>\n\n\n\n<p>Mockito\u306f\u5358\u306a\u308b\u30e2\u30c3\u30af\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3067\u306f\u306a\u304f\u3001\u54c1\u8cea\u306e\u9ad8\u3044\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u958b\u767a\u3092\u652f\u3048\u308b\u91cd\u8981\u306a\u30c4\u30fc\u30eb\u3067\u3059\u3002\u672c\u8a18\u4e8b\u3067\u89e3\u8aac\u3057\u305f\u5185\u5bb9\u3092\u57fa\u306b\u3001\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u7279\u6027\u306b\u5408\u308f\u305b\u3066\u9069\u5207\u306b\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u3057\u3001\u52b9\u679c\u7684\u306a\u30c6\u30b9\u30c8\u6226\u7565\u3092\u69cb\u7bc9\u3057\u3066\u3044\u305f\u3060\u3051\u308c\u3070\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u306e\u54c1\u8cea\u306f\u3001\u30d7\u30ed\u30c0\u30af\u30c8\u30b3\u30fc\u30c9\u306e\u54c1\u8cea\u306b\u76f4\u7d50\u3057\u307e\u3059\u3002Mockito\u306e\u6a5f\u80fd\u3092\u5341\u5206\u306b\u7406\u89e3\u3057\u3001\u9069\u5207\u306b\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u4fdd\u5b88\u6027\u304c\u9ad8\u304f\u3001\u4fe1\u983c\u6027\u306e\u3042\u308b\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u958b\u767a\u3092\u5b9f\u73fe\u3067\u304d\u308b\u3067\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Warning: 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