{"id":643,"date":"2025-03-24T08:53:11","date_gmt":"2025-03-23T23:53:11","guid":{"rendered":"https:\/\/dexall.co.jp\/articles\/?p=643"},"modified":"2025-03-24T08:53:11","modified_gmt":"2025-03-23T23:53:11","slug":"%e3%80%902024%e5%b9%b4%e4%bf%9d%e5%ad%98%e7%89%88%e3%80%91mockito-verify%e3%81%ae%e5%ae%8c%e5%85%a8%e3%82%ac%e3%82%a4%e3%83%89-%e5%9f%ba%e6%9c%ac%e3%81%8b%e3%82%89%e5%bf%9c%e7%94%a8%e3%81%be","status":"publish","type":"post","link":"https:\/\/dexall.co.jp\/articles\/?p=643","title":{"rendered":"\u30102024\u5e74\u4fdd\u5b58\u7248\u3011Mockito.verify\u306e\u5b8c\u5168\u30ac\u30a4\u30c9 &#8211; \u57fa\u672c\u304b\u3089\u5fdc\u7528\u307e\u306715\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9"},"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.verify\u3068\u306f\uff1f\u57fa\u672c\u6982\u5ff5\u3092\u7406\u89e3\u3057\u3088\u3046<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-1\">verify\u30e1\u30bd\u30c3\u30c9\u306e\u5f79\u5272\u3068\u91cd\u8981\u6027<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-3\">\u30e2\u30c3\u30af\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u632f\u308b\u821e\u3044\u691c\u8a3c\u306e\u57fa\u672c<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-7\">Mockito.verify\u306e\u57fa\u672c\u7684\u306a\u4f7f\u3044\u65b9<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-8\">verify\u306e\u57fa\u672c\u69cb\u6587\u3068\u5b9f\u88c5\u4f8b<\/a>      <\/li>      <li>        <a href=\"#i-11\">\u691c\u8a3c\u56de\u6570\u306e\u6307\u5b9a\u65b9\u6cd5\uff08times\/never\/atLeast\uff09<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-14\">\u5f15\u6570\u30de\u30c3\u30c1\u30e3\u30fc\u306e\u6d3b\u7528\u30c6\u30af\u30cb\u30c3\u30af<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-18\">verify\u3092\u4f7f\u7528\u3057\u305f\u30c6\u30b9\u30c8\u306e\u8a2d\u8a08\u30d1\u30bf\u30fc\u30f3<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-19\">Given-When-Then\u5f62\u5f0f\u3067\u306e\u5b9f\u88c5\u4f8b<\/a>      <\/li>      <li>        <a href=\"#i-22\">\u30c6\u30b9\u30c8\u53ef\u8aad\u6027\u3092\u9ad8\u3081\u308bverify\u306e\u4f7f\u3044\u65b9<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-25\">\u30c6\u30b9\u30c8\u306e\u4fdd\u5b88\u6027\u3092\u5411\u4e0a\u3055\u305b\u308bverify\u306e\u6d3b\u7528\u6cd5<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-28\">\u3088\u304f\u3042\u308bverify\u306e\u30a8\u30e9\u30fc\u3068\u89e3\u6c7a\u65b9\u6cd5<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-29\">WantedButNotInvoked\u5bfe\u7b56\u65b9\u6cd5<\/a>      <\/li>      <li>        <a href=\"#i-33\">TooManyActualInvocations\u306e\u89e3\u6c7a\u624b\u9806<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-36\">NullPointerException\u3092\u9632\u3050\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-40\">\u30c1\u30fc\u30e0\u3067\u306e\u6d3b\u7528\u306b\u5411\u3051\u305f\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-41\">\u30b3\u30fc\u30c9\u30ec\u30d3\u30e5\u30fc\u3067\u6307\u6458\u3055\u308c\u3084\u3059\u3044verify\u306e\u554f\u984c\u70b9<\/a>      <\/li>      <li>        <a href=\"#i-44\">\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u306e\u6a19\u6e96\u5316\u3068verify\u306e\u4f7f\u7528\u6307\u91dd<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-47\">\u30e2\u30c3\u30af\u306e\u4f7f\u3044\u3059\u304e\u3092\u9632\u3050\u305f\u3081\u306e\u8a2d\u8a08\u6307\u91dd<\/a>      <\/li>    <\/ul>  <\/li>  <li class=\"last\">    <a href=\"#i-50\">\u307e\u3068\u3081\uff1a\u52b9\u679c\u7684\u306aMockito.verify\u306e\u6d3b\u7528\u306b\u5411\u3051\u3066<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-51\">\u672c\u8a18\u4e8b\u3067\u5b66\u3093\u3060\u91cd\u8981\u306a\u30dd\u30a4\u30f3\u30c8<\/a>      <\/li>      <li>        <a href=\"#i-52\">\u5b9f\u8df5\u306b\u5411\u3051\u305f\u30b9\u30c6\u30c3\u30d7<\/a>      <\/li>      <li>        <a href=\"#i-53\">\u6b21\u306e\u30b9\u30c6\u30c3\u30d7\u306b\u5411\u3051\u3066<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-54\">\u304a\u308f\u308a\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.verify\u3068\u306f\uff1f\u57fa\u672c\u6982\u5ff5\u3092\u7406\u89e3\u3057\u3088\u3046<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-1\">verify\u30e1\u30bd\u30c3\u30c9\u306e\u5f79\u5272\u3068\u91cd\u8981\u6027<\/h3>\n\n\n\n<p>Mockito.verify\u306f\u3001\u30e2\u30c3\u30af\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u5bfe\u3057\u3066\u7279\u5b9a\u306e\u30e1\u30bd\u30c3\u30c9\u304c\u300c\u3069\u306e\u3088\u3046\u306b\u547c\u3073\u51fa\u3055\u308c\u305f\u304b\u300d\u3092\u691c\u8a3c\u3059\u308b\u305f\u3081\u306e\u30e1\u30bd\u30c3\u30c9\u3067\u3059\u3002\u5358\u4f53\u30c6\u30b9\u30c8\u306b\u304a\u3044\u3066\u3001\u30c6\u30b9\u30c8\u5bfe\u8c61\u306e\u30af\u30e9\u30b9\u304c\u4f9d\u5b58\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u6b63\u3057\u304f\u64cd\u4f5c\u3057\u3066\u3044\u308b\u304b\u3092\u78ba\u8a8d\u3059\u308b\u969b\u306b\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"is-style-sango-paragraph-exclamation-alt\"><strong>verify\u304c\u89e3\u6c7a\u3059\u308b\u8ab2\u984c<\/strong><\/p>\n\n\n\n<p>\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u306b\u304a\u3044\u3066\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u691c\u8a3c\u304c\u5fc5\u8981\u306a\u5834\u9762\u3067\u6d3b\u7528\u3055\u308c\u307e\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u30e1\u30bd\u30c3\u30c9\u304c\u547c\u3073\u51fa\u3055\u308c\u305f\u304b\u3069\u3046\u304b\u306e\u78ba\u8a8d<\/li>\n\n\n\n<li>\u30e1\u30bd\u30c3\u30c9\u304c\u6b63\u3057\u3044\u5f15\u6570\u3067\u547c\u3073\u51fa\u3055\u308c\u305f\u304b\u306e\u78ba\u8a8d<\/li>\n\n\n\n<li>\u30e1\u30bd\u30c3\u30c9\u304c\u6307\u5b9a\u3057\u305f\u56de\u6570\u3060\u3051\u547c\u3073\u51fa\u3055\u308c\u305f\u304b\u306e\u78ba\u8a8d<\/li>\n\n\n\n<li>\u30e1\u30bd\u30c3\u30c9\u304c\u7279\u5b9a\u306e\u9806\u5e8f\u3067\u547c\u3073\u51fa\u3055\u308c\u305f\u304b\u306e\u78ba\u8a8d<\/li>\n<\/ol>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-2\">verify\u306e\u57fa\u672c\u7684\u306a\u4f7f\u7528\u5834\u9762<\/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=\"\">\/\/ \u30e1\u30fc\u30eb\u9001\u4fe1\u30b5\u30fc\u30d3\u30b9\u306e\u4f8b\npublic class NotificationService {\n    private EmailSender emailSender;\n\n    public NotificationService(EmailSender emailSender) {\n        this.emailSender = emailSender;\n    }\n\n    public void notifyUser(String userId, String message) {\n        \/\/ \u30e6\u30fc\u30b6\u30fc\u60c5\u5831\u306e\u53d6\u5f97\u3084\u4ed6\u306e\u51e6\u7406...\n        emailSender.sendEmail(userId, message);\n    }\n}\n\n\/\/ \u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\n@Test\npublic void testNotifyUser() {\n    \/\/ \u30e2\u30c3\u30af\u306e\u4f5c\u6210\n    EmailSender mockEmailSender = mock(EmailSender.class);\n    NotificationService service = new NotificationService(mockEmailSender);\n\n    \/\/ \u30e1\u30bd\u30c3\u30c9\u5b9f\u884c\n    service.notifyUser(\"user123\", \"Hello!\");\n\n    \/\/ \u691c\u8a3c\n    verify(mockEmailSender).sendEmail(\"user123\", \"Hello!\");\n}<\/pre>\n\n\n\n<p>\u3053\u306e\u3088\u3046\u306b\u3001verify\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u30c6\u30b9\u30c8\u5bfe\u8c61\u306e\u30af\u30e9\u30b9\u304c\u4f9d\u5b58\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u671f\u5f85\u901a\u308a\u306b\u64cd\u4f5c\u3057\u3066\u3044\u308b\u304b\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-3\">\u30e2\u30c3\u30af\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u632f\u308b\u821e\u3044\u691c\u8a3c\u306e\u57fa\u672c<\/h3>\n\n\n\n<p>\u30e2\u30c3\u30af\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u632f\u308b\u821e\u3044\u691c\u8a3c\u306b\u306f\u3001\u5927\u304d\u304f\u5206\u3051\u3066\u4ee5\u4e0b\u306e3\u3064\u306e\u8981\u7d20\u304c\u3042\u308a\u307e\u3059\uff1a<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-4\">1. \u691c\u8a3c\u306e\u7a2e\u985e<\/h4>\n\n\n<div id=\"id-ef2c6d59-251c-42a1-ae12-4b151beb8fe6\">\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u691c\u8a3c\u306e\u7a2e\u985e<\/th><th>\u8aac\u660e<\/th><th>\u4f7f\u7528\u4f8b<\/th><\/tr><\/thead><tbody><tr><td>\u30e1\u30bd\u30c3\u30c9\u547c\u3073\u51fa\u3057\u306e\u6709\u7121<\/td><td>\u30e1\u30bd\u30c3\u30c9\u304c\u547c\u3073\u51fa\u3055\u308c\u305f\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d<\/td><td><code>verify(mock).method()<\/code><\/td><\/tr><tr><td>\u5f15\u6570\u306e\u691c\u8a3c<\/td><td>\u30e1\u30bd\u30c3\u30c9\u304c\u6b63\u3057\u3044\u5f15\u6570\u3067\u547c\u3073\u51fa\u3055\u308c\u305f\u304b\u78ba\u8a8d<\/td><td><code>verify(mock).method(eq(\"expected\"))<\/code><\/td><\/tr><tr><td>\u547c\u3073\u51fa\u3057\u56de\u6570\u306e\u691c\u8a3c<\/td><td>\u30e1\u30bd\u30c3\u30c9\u304c\u6307\u5b9a\u56de\u6570\u547c\u3073\u51fa\u3055\u308c\u305f\u304b\u78ba\u8a8d<\/td><td><code>verify(mock, times(2)).method()<\/code><\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n<h4 class=\"wp-block-heading\" id=\"i-5\">2. \u691c\u8a3c\u306e\u30bf\u30a4\u30df\u30f3\u30b0<\/h4>\n\n\n\n<p>verify\u306b\u3088\u308b\u691c\u8a3c\u306f\u3001\u901a\u5e38\u4ee5\u4e0b\u306e\u9806\u5e8f\u3067\u884c\u308f\u308c\u307e\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u30e2\u30c3\u30af\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u4f5c\u6210<\/li>\n\n\n\n<li>\u30c6\u30b9\u30c8\u5bfe\u8c61\u30af\u30e9\u30b9\u306e\u5b9f\u884c<\/li>\n\n\n\n<li>\u632f\u308b\u821e\u3044\u306e\u691c\u8a3c<\/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=\"\">\/\/ \u691c\u8a3c\u306e\u30bf\u30a4\u30df\u30f3\u30b0\u306e\u4f8b\n@Test\npublic void demonstrateVerificationTiming() {\n    \/\/ 1. \u30e2\u30c3\u30af\u306e\u4f5c\u6210\n    UserRepository mockRepository = mock(UserRepository.class);\n    UserService service = new UserService(mockRepository);\n\n    \/\/ 2. \u30c6\u30b9\u30c8\u5bfe\u8c61\u30e1\u30bd\u30c3\u30c9\u306e\u5b9f\u884c\n    service.deleteUser(\"userId123\");\n\n    \/\/ 3. \u632f\u308b\u821e\u3044\u306e\u691c\u8a3c\n    verify(mockRepository).deleteById(\"userId123\");\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-6\">3. \u691c\u8a3c\u306e\u7c92\u5ea6<\/h4>\n\n\n\n<p>\u691c\u8a3c\u306e\u7c92\u5ea6\u306f\u3001\u30c6\u30b9\u30c8\u306e\u76ee\u7684\u306b\u5fdc\u3058\u3066\u9069\u5207\u306b\u9078\u629e\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\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=\"\">\/\/ \u69d8\u3005\u306a\u7c92\u5ea6\u3067\u306e\u691c\u8a3c\u4f8b\n@Test\npublic void demonstrateVerificationGranularity() {\n    OrderService mockOrderService = mock(OrderService.class);\n\n    \/\/ \u30e1\u30bd\u30c3\u30c9\u547c\u3073\u51fa\u3057\u306e\u6709\u7121\u306e\u307f\u3092\u691c\u8a3c\n    verify(mockOrderService).processOrder(any());\n\n    \/\/ \u5177\u4f53\u7684\u306a\u5f15\u6570\u5024\u3092\u691c\u8a3c\n    verify(mockOrderService).processOrder(eq(\"ORDER001\"));\n\n    \/\/ \u547c\u3073\u51fa\u3057\u56de\u6570\u3082\u542b\u3081\u3066\u691c\u8a3c\n    verify(mockOrderService, times(1)).processOrder(any());\n}<\/pre>\n\n\n\n<div class=\"wp-block-sgb-message\"><div class=\"memo sng-shadow-0\" style=\"border-radius:0px;background-color:#b4e0fa;color:#009EF3\"><div class=\"memo_ttl dfont\"><span class=\"sng-box-msg__icon\" style=\"background:#009EF3\"><i class=\"far fa-lightbulb\"><\/i><\/span><div class=\"sng-box-msg__title\">\u91cd\u8981\u306a\u30dd\u30a4\u30f3\u30c8<\/div><\/div><div class=\"sng-box-msg__contents\">\n<ol class=\"wp-block-list\">\n<li><strong>\u691c\u8a3c\u306e\u76ee\u7684\u3092\u660e\u78ba\u306b<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u4f55\u3092\u691c\u8a3c\u3057\u305f\u3044\u306e\u304b\u3092\u660e\u78ba\u306b\u3057\u3066\u304b\u3089\u3001\u9069\u5207\u306averify\u30e1\u30bd\u30c3\u30c9\u3092\u9078\u629e\u3059\u308b<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u5fc5\u8981\u6700\u5c0f\u9650\u306e\u691c\u8a3c<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u691c\u8a3c\u304c\u591a\u3059\u304e\u308b\u3068\u30c6\u30b9\u30c8\u306e\u4fdd\u5b88\u6027\u304c\u4f4e\u4e0b\u3059\u308b<\/li>\n\n\n\n<li>\u91cd\u8981\u306a\u632f\u308b\u821e\u3044\u306e\u307f\u3092\u691c\u8a3c\u5bfe\u8c61\u3068\u3059\u308b<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u53ef\u8aad\u6027\u306e\u7dad\u6301<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u691c\u8a3c\u306e\u610f\u56f3\u304c\u660e\u78ba\u306b\u306a\u308b\u3088\u3046\u306b\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u3092\u69cb\u9020\u5316\u3059\u308b<\/li>\n\n\n\n<li>\u9069\u5207\u306a\u30b3\u30e1\u30f3\u30c8\u3092\u8ffd\u52a0\u3057\u3066\u3001\u30c6\u30b9\u30c8\u306e\u76ee\u7684\u3092\u660e\u78ba\u306b\u3059\u308b<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<\/div><\/div><\/div>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u57fa\u672c\u6982\u5ff5\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u3067\u3001Mockito.verify\u3092\u52b9\u679c\u7684\u306b\u6d3b\u7528\u3057\u305f\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u3092\u4f5c\u6210\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u3088\u308a\u5177\u4f53\u7684\u306a\u4f7f\u7528\u65b9\u6cd5\u3068\u5b9f\u8df5\u7684\u306a\u30d1\u30bf\u30fc\u30f3\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-7\">Mockito.verify\u306e\u57fa\u672c\u7684\u306a\u4f7f\u3044\u65b9<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-8\">verify\u306e\u57fa\u672c\u69cb\u6587\u3068\u5b9f\u88c5\u4f8b<\/h3>\n\n\n\n<p>Mockito.verify\u306e\u57fa\u672c\u69cb\u6587\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u306f\u3001\u52b9\u679c\u7684\u306a\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u4f5c\u6210\u306e\u7b2c\u4e00\u6b69\u3067\u3059\u3002\u4ee5\u4e0b\u3067\u3001\u57fa\u672c\u7684\u306a\u4f7f\u3044\u65b9\u304b\u3089\u5fdc\u7528\u7684\u306a\u4f7f\u3044\u65b9\u307e\u3067\u6bb5\u968e\u7684\u306b\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-9\">1. \u57fa\u672c\u7684\u306a\u691c\u8a3c<\/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=\"\">\/\/ \u57fa\u672c\u7684\u306averify\u306e\u4f7f\u7528\u4f8b\n@Test\npublic void demonstrateBasicVerify() {\n    \/\/ \u30e2\u30c3\u30af\u306e\u4f5c\u6210\n    List&lt;String&gt; mockedList = mock(List.class);\n\n    \/\/ \u30e2\u30c3\u30af\u30e1\u30bd\u30c3\u30c9\u306e\u5b9f\u884c\n    mockedList.add(\"test\");\n    mockedList.clear();\n\n    \/\/ \u57fa\u672c\u7684\u306a\u691c\u8a3c\n    verify(mockedList).add(\"test\");  \/\/ add\u30e1\u30bd\u30c3\u30c9\u304c\"test\"\u3067\u547c\u3070\u308c\u305f\u3053\u3068\u3092\u691c\u8a3c\n    verify(mockedList).clear();      \/\/ clear\u30e1\u30bd\u30c3\u30c9\u304c\u547c\u3070\u308c\u305f\u3053\u3068\u3092\u691c\u8a3c\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-10\">2. \u30e1\u30bd\u30c3\u30c9\u30c1\u30a7\u30fc\u30f3\u3067\u306e\u691c\u8a3c<\/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=\"\">\/\/ verify\u306e\u30e1\u30bd\u30c3\u30c9\u30c1\u30a7\u30fc\u30f3\u306e\u4f8b\n@Test\npublic void demonstrateMethodChaining() {\n    UserService userService = mock(UserService.class);\n\n    \/\/ \u30e2\u30c3\u30af\u30e1\u30bd\u30c3\u30c9\u306e\u5b9f\u884c\n    userService.findById(\"userId\").getName();\n\n    \/\/ \u30e1\u30bd\u30c3\u30c9\u30c1\u30a7\u30fc\u30f3\u306e\u691c\u8a3c\n    verify(userService).findById(\"userId\");  \/\/ findById\u30e1\u30bd\u30c3\u30c9\u306e\u691c\u8a3c\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-11\">\u691c\u8a3c\u56de\u6570\u306e\u6307\u5b9a\u65b9\u6cd5\uff08times\/never\/atLeast\uff09<\/h3>\n\n\n\n<p>verify\u30e1\u30bd\u30c3\u30c9\u3067\u306f\u3001\u30e1\u30bd\u30c3\u30c9\u306e\u547c\u3073\u51fa\u3057\u56de\u6570\u3092\u69d8\u3005\u306a\u65b9\u6cd5\u3067\u691c\u8a3c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-12\">1. \u57fa\u672c\u7684\u306a\u56de\u6570\u6307\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=\"\">@Test\npublic void demonstrateVerificationModes() {\n    List&lt;String&gt; mockedList = mock(List.class);\n\n    \/\/ \u30e2\u30c3\u30af\u30e1\u30bd\u30c3\u30c9\u306e\u8907\u6570\u56de\u5b9f\u884c\n    mockedList.add(\"test\");\n    mockedList.add(\"test\");\n    mockedList.add(\"test\");\n\n    \/\/ \u69d8\u3005\u306a\u56de\u6570\u6307\u5b9a\u306b\u3088\u308b\u691c\u8a3c\n    verify(mockedList, times(3)).add(\"test\");    \/\/ \u6b63\u78ba\u306b3\u56de\n    verify(mockedList, atLeast(2)).add(\"test\");  \/\/ \u6700\u4f4e2\u56de\n    verify(mockedList, atMost(4)).add(\"test\");   \/\/ \u6700\u59274\u56de\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-13\">2. \u7279\u6b8a\u306a\u56de\u6570\u6307\u5b9a<\/h4>\n\n\n<div id=\"id-b96568a5-25ed-402e-8b38-d64d4f46628e\">\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u691c\u8a3c\u30e2\u30fc\u30c9<\/th><th>\u8aac\u660e<\/th><th>\u4f7f\u7528\u4f8b<\/th><\/tr><\/thead><tbody><tr><td>never()<\/td><td>\u30e1\u30bd\u30c3\u30c9\u304c\u547c\u3070\u308c\u3066\u3044\u306a\u3044\u3053\u3068\u3092\u691c\u8a3c<\/td><td><code>verify(mock, never()).method()<\/code><\/td><\/tr><tr><td>atLeastOnce()<\/td><td>\u6700\u4f4e1\u56de\u547c\u3070\u308c\u305f\u3053\u3068\u3092\u691c\u8a3c<\/td><td><code>verify(mock, atLeastOnce()).method()<\/code><\/td><\/tr><tr><td>only()<\/td><td>\u305d\u306e\u30e1\u30bd\u30c3\u30c9\u306e\u307f\u304c\u547c\u3070\u308c\u305f\u3053\u3068\u3092\u691c\u8a3c<\/td><td><code>verify(mock, only()).method()<\/code><\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\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\npublic void demonstrateSpecialVerificationModes() {\n    UserService userService = mock(UserService.class);\n\n    \/\/ \u30e1\u30bd\u30c3\u30c9\u5b9f\u884c\n    userService.updateUser(\"user1\");\n\n    \/\/ \u7279\u6b8a\u306a\u691c\u8a3c\u30e2\u30fc\u30c9\u306e\u4f7f\u7528\n    verify(userService, never()).deleteUser(any());     \/\/ deleteUser\u306f\u547c\u3070\u308c\u3066\u3044\u306a\u3044\n    verify(userService, atLeastOnce()).updateUser(any()); \/\/ updateUser\u306f\u6700\u4f4e1\u56de\u547c\u3070\u308c\u305f\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-14\">\u5f15\u6570\u30de\u30c3\u30c1\u30e3\u30fc\u306e\u6d3b\u7528\u30c6\u30af\u30cb\u30c3\u30af<\/h3>\n\n\n\n<p>\u5f15\u6570\u30de\u30c3\u30c1\u30e3\u30fc\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u67d4\u8edf\u306a\u691c\u8a3c\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-15\">1. \u57fa\u672c\u7684\u306a\u5f15\u6570\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\npublic void demonstrateArgumentMatchers() {\n    UserService userService = mock(UserService.class);\n\n    \/\/ \u30e1\u30bd\u30c3\u30c9\u5b9f\u884c\n    userService.createUser(\"john\", 25);\n\n    \/\/ \u69d8\u3005\u306a\u5f15\u6570\u30de\u30c3\u30c1\u30e3\u30fc\u306e\u4f7f\u7528\n    verify(userService).createUser(anyString(), anyInt());  \/\/ \u578b\u306b\u3088\u308b\u691c\u8a3c\n    verify(userService).createUser(eq(\"john\"), gt(20));    \/\/ \u5024\u306b\u3088\u308b\u691c\u8a3c\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-16\">2. \u30ab\u30b9\u30bf\u30e0\u5f15\u6570\u30de\u30c3\u30c1\u30e3\u30fc<\/h4>\n\n\n\n<p>\u3088\u308a\u8907\u96d1\u306a\u691c\u8a3c\u304c\u5fc5\u8981\u306a\u5834\u5408\u306f\u3001\u30ab\u30b9\u30bf\u30e0\u5f15\u6570\u30de\u30c3\u30c1\u30e3\u30fc\u3092\u4f7f\u7528\u3067\u304d\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=\"\">@Test\npublic void demonstrateCustomArgumentMatcher() {\n    UserService userService = mock(UserService.class);\n\n    User user = new User(\"john\", \"john@example.com\");\n    userService.registerUser(user);\n\n    \/\/ \u30ab\u30b9\u30bf\u30e0\u5f15\u6570\u30de\u30c3\u30c1\u30e3\u30fc\u306e\u4f7f\u7528\n    verify(userService).registerUser(argThat(u -&gt; \n        u.getName().equals(\"john\") &amp;&amp; \n        u.getEmail().contains(\"@\")\n    ));\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-17\">3. \u5f15\u6570\u30de\u30c3\u30c1\u30e3\u30fc\u4f7f\u7528\u6642\u306e\u6ce8\u610f\u70b9<\/h4>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u4e00\u8cab\u6027\u306e\u539f\u5247<\/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\u4f8b\n   verify(service).process(anyString(), anyInt());\n\n   \/\/ \u8aa4\u3063\u305f\u4f7f\u7528\u4f8b\uff08\u6df7\u5728\u3055\u305b\u306a\u3044\uff09\n   verify(service).process(\"exactString\", anyInt()); \/\/ \u30b3\u30f3\u30d1\u30a4\u30eb\u30a8\u30e9\u30fc<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>null\u306e\u6271\u3044<\/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=\"\">   \/\/ null\u3092\u8a31\u5bb9\u3059\u308b\u5834\u5408\n   verify(service).process(nullable(String.class));\n\n   \/\/ null\u30c1\u30a7\u30c3\u30af\u3092\u542b\u3080\u30ab\u30b9\u30bf\u30e0\u30de\u30c3\u30c1\u30e3\u30fc\n   verify(service).process(argThat(str -&gt; \n       str != null &amp;&amp; str.length() &gt; 0\n   ));<\/pre>\n\n\n\n<p class=\"is-style-sango-paragraph-idea-alt\"><strong>\u5b9f\u88c5\u306e\u30dd\u30a4\u30f3\u30c8\uff1a<\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u9069\u5207\u306a\u30de\u30c3\u30c1\u30e3\u30fc\u306e\u9078\u629e<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u691c\u8a3c\u306e\u76ee\u7684\u306b\u5fdc\u3058\u3066\u6700\u9069\u306a\u30de\u30c3\u30c1\u30e3\u30fc\u3092\u9078\u629e\u3059\u308b<\/li>\n\n\n\n<li>\u904e\u5ea6\u306b\u53b3\u5bc6\u306a\u691c\u8a3c\u306f\u907f\u3051\u308b<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u53ef\u8aad\u6027\u306e\u7dad\u6301<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u8907\u96d1\u306a\u30de\u30c3\u30c1\u30e3\u30fc\u306f\u30e1\u30bd\u30c3\u30c9\u5316\u3057\u3066\u518d\u5229\u7528\u3059\u308b<\/li>\n\n\n\n<li>\u691c\u8a3c\u306e\u610f\u56f3\u304c\u660e\u78ba\u306b\u306a\u308b\u3088\u3046\u306b\u30b3\u30fc\u30c9\u3092\u69cb\u9020\u5316\u3059\u308b<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u6539\u5584<\/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=\"\">   verify(userService).createUser(\n       argThat(name -&gt; {\n           assertThat(name).matches(\"[a-zA-Z]+\");\n           return true;\n       }),\n       argThat(age -&gt; {\n           assertThat(age).isBetween(0, 120);\n           return true;\n       })\n   );<\/pre>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u57fa\u672c\u7684\u306a\u4f7f\u3044\u65b9\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u3067\u3001Mockito.verify\u3092\u52b9\u679c\u7684\u306b\u6d3b\u7528\u3057\u305f\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u3092\u4f5c\u6210\u3067\u304d\u307e\u3059\u3002\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u3088\u308a\u5b9f\u8df5\u7684\u306averify\u306e\u6d3b\u7528\u30d1\u30bf\u30fc\u30f3\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-18\">verify\u3092\u4f7f\u7528\u3057\u305f\u30c6\u30b9\u30c8\u306e\u8a2d\u8a08\u30d1\u30bf\u30fc\u30f3<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-19\">Given-When-Then\u5f62\u5f0f\u3067\u306e\u5b9f\u88c5\u4f8b<\/h3>\n\n\n\n<p>Given-When-Then\uff08GWT\uff09\u30d1\u30bf\u30fc\u30f3\u306f\u3001\u30c6\u30b9\u30c8\u3092\u69cb\u9020\u5316\u3057\u3001\u53ef\u8aad\u6027\u3092\u9ad8\u3081\u308b\u305f\u3081\u306e\u52b9\u679c\u7684\u306a\u65b9\u6cd5\u3067\u3059\u3002Mockito.verify\u3068\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u660e\u78ba\u306a\u30c6\u30b9\u30c8\u3092\u4f5c\u6210\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-20\">1. \u57fa\u672c\u7684\u306aGWT\u30d1\u30bf\u30fc\u30f3<\/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\npublic void demonstrateBasicGWT() {\n    \/\/ Given: \u30c6\u30b9\u30c8\u306e\u524d\u63d0\u6761\u4ef6\u3092\u8a2d\u5b9a\n    UserRepository userRepo = mock(UserRepository.class);\n    EmailService emailService = mock(EmailService.class);\n    UserService userService = new UserService(userRepo, emailService);\n\n    User testUser = new User(\"testUser\", \"test@example.com\");\n    when(userRepo.findById(\"userId\")).thenReturn(Optional.of(testUser));\n\n    \/\/ When: \u30c6\u30b9\u30c8\u5bfe\u8c61\u306e\u64cd\u4f5c\u3092\u5b9f\u884c\n    userService.deactivateUser(\"userId\");\n\n    \/\/ Then: \u671f\u5f85\u3055\u308c\u308b\u7d50\u679c\u3092\u691c\u8a3c\n    verify(userRepo).updateStatus(\"userId\", UserStatus.INACTIVE);\n    verify(emailService).sendDeactivationEmail(\"test@example.com\");\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-21\">2. GWT\u30d1\u30bf\u30fc\u30f3\u306e\u62e1\u5f35<\/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\npublic void demonstrateExtendedGWT() {\n    \/\/ Given\n    OrderService orderService = mock(OrderService.class);\n    PaymentService paymentService = mock(PaymentService.class);\n    NotificationService notificationService = mock(NotificationService.class);\n\n    OrderProcessor processor = new OrderProcessor(\n        orderService, \n        paymentService, \n        notificationService\n    );\n\n    Order testOrder = new Order(\"ORD001\", 1000.0);\n    when(orderService.getOrder(\"ORD001\")).thenReturn(testOrder);\n\n    \/\/ When\n    processor.processOrder(\"ORD001\");\n\n    \/\/ Then: \u51e6\u7406\u9806\u5e8f\u306e\u691c\u8a3c\n    InOrder inOrder = inOrder(paymentService, orderService, notificationService);\n\n    inOrder.verify(paymentService).processPayment(eq(1000.0));\n    inOrder.verify(orderService).updateOrderStatus(\n        eq(\"ORD001\"), \n        eq(OrderStatus.PAID)\n    );\n    inOrder.verify(notificationService).sendOrderConfirmation(any());\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-22\">\u30c6\u30b9\u30c8\u53ef\u8aad\u6027\u3092\u9ad8\u3081\u308bverify\u306e\u4f7f\u3044\u65b9<\/h3>\n\n\n\n<p>\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u306e\u53ef\u8aad\u6027\u306f\u3001\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u6027\u3068\u7406\u89e3\u306e\u3057\u3084\u3059\u3055\u306b\u76f4\u7d50\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-23\">1. \u30ab\u30b9\u30bf\u30e0\u30de\u30c3\u30c1\u30e3\u30fc\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=\"\">@Test\npublic void demonstrateReadableVerification() {\n    OrderService orderService = mock(OrderService.class);\n\n    \/\/ \u30ab\u30b9\u30bf\u30e0\u30de\u30c3\u30c1\u30e3\u30fc\u306e\u5b9a\u7fa9\n    class ValidOrderMatcher implements ArgumentMatcher&lt;Order&gt; {\n        @Override\n        public boolean matches(Order order) {\n            return order != null &amp;&amp;\n                   order.getAmount() &gt; 0 &amp;&amp;\n                   order.getItems().size() &gt; 0;\n        }\n\n        @Override\n        public String toString() {\n            return \"a valid order with positive amount and items\";\n        }\n    }\n\n    \/\/ \u53ef\u8aad\u6027\u306e\u9ad8\u3044\u691c\u8a3c\n    verify(orderService).processOrder(argThat(new ValidOrderMatcher()));\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-24\">2. BDD\u30b9\u30bf\u30a4\u30eb\u306e\u9069\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=\"\">@Test\npublic void demonstrateBDDStyle() {\n    \/\/ Given\/Arrange\n    UserService userService = mock(UserService.class);\n    given(userService.findById(\"userId\"))\n        .willReturn(Optional.of(new User(\"testUser\")));\n\n    \/\/ When\/Act\n    userService.updateProfile(\"userId\", new Profile(\"newName\"));\n\n    \/\/ Then\/Assert\n    then(userService)\n        .should(times(1))\n        .updateProfile(eq(\"userId\"), any(Profile.class));\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-25\">\u30c6\u30b9\u30c8\u306e\u4fdd\u5b88\u6027\u3092\u5411\u4e0a\u3055\u305b\u308bverify\u306e\u6d3b\u7528\u6cd5<\/h3>\n\n\n\n<p>\u30c6\u30b9\u30c8\u306e\u4fdd\u5b88\u6027\u3092\u9ad8\u3081\u308b\u305f\u3081\u306b\u306f\u3001\u9069\u5207\u306a\u62bd\u8c61\u5316\u3068\u30ab\u30d7\u30bb\u30eb\u5316\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-26\">1. \u30c6\u30b9\u30c8\u30d8\u30eb\u30d1\u30fc\u306e\u4f5c\u6210<\/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 OrderTestHelper {\n    private final OrderService orderService;\n    private final PaymentService paymentService;\n\n    public OrderTestHelper() {\n        this.orderService = mock(OrderService.class);\n        this.paymentService = mock(PaymentService.class);\n    }\n\n    public void verifyOrderProcessing(String orderId) {\n        verify(orderService).validateOrder(orderId);\n        verify(paymentService).processPayment(any(Payment.class));\n        verify(orderService).updateOrderStatus(\n            eq(orderId), \n            eq(OrderStatus.COMPLETED)\n        );\n    }\n\n    public OrderService getOrderService() {\n        return orderService;\n    }\n\n    public PaymentService getPaymentService() {\n        return paymentService;\n    }\n}\n\n@Test\npublic void demonstrateTestHelper() {\n    OrderTestHelper helper = new OrderTestHelper();\n    OrderProcessor processor = new OrderProcessor(\n        helper.getOrderService(), \n        helper.getPaymentService()\n    );\n\n    processor.processOrder(\"ORD001\");\n\n    helper.verifyOrderProcessing(\"ORD001\");\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-27\">2. \u30ab\u30b9\u30bf\u30e0\u30a2\u30b5\u30fc\u30b7\u30e7\u30f3<\/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 OrderAssert {\n    private final OrderService orderService;\n\n    public OrderAssert(OrderService orderService) {\n        this.orderService = orderService;\n    }\n\n    public OrderAssert hasProcessedOrder(String orderId) {\n        verify(orderService).processOrder(eq(orderId));\n        return this;\n    }\n\n    public OrderAssert hasNotifiedCustomer(String orderId) {\n        verify(orderService).sendNotification(eq(orderId));\n        return this;\n    }\n\n    public static OrderAssert assertThat(OrderService orderService) {\n        return new OrderAssert(orderService);\n    }\n}\n\n@Test\npublic void demonstrateCustomAssertions() {\n    OrderService orderService = mock(OrderService.class);\n    OrderProcessor processor = new OrderProcessor(orderService);\n\n    processor.processOrder(\"ORD001\");\n\n    assertThat(orderService)\n        .hasProcessedOrder(\"ORD001\")\n        .hasNotifiedCustomer(\"ORD001\");\n}<\/pre>\n\n\n\n<p class=\"is-style-sango-paragraph-idea-alt\"><strong>\u5b9f\u88c5\u306e\u30dd\u30a4\u30f3\u30c8\uff1a<\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30c6\u30b9\u30c8\u69cb\u9020\u306e\u4e00\u8cab\u6027<\/strong>\n<ul class=\"wp-block-list\">\n<li>GWT\u30d1\u30bf\u30fc\u30f3\u3092\u57fa\u672c\u3068\u3059\u308b<\/li>\n\n\n\n<li>\u30bb\u30af\u30b7\u30e7\u30f3\u3092\u660e\u78ba\u306b\u5206\u3051\u308b<\/li>\n\n\n\n<li>\u30b3\u30e1\u30f3\u30c8\u3067\u5404\u30bb\u30af\u30b7\u30e7\u30f3\u3092\u8aac\u660e\u3059\u308b<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u53ef\u8aad\u6027\u306e\u5411\u4e0a<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u610f\u56f3\u3092\u660e\u78ba\u306b\u8868\u73fe\u3059\u308b\u547d\u540d<\/li>\n\n\n\n<li>\u30ab\u30b9\u30bf\u30e0\u30de\u30c3\u30c1\u30e3\u30fc\u306e\u6d3b\u7528<\/li>\n\n\n\n<li>BDD\u30b9\u30bf\u30a4\u30eb\u306e\u9069\u5207\u306a\u4f7f\u7528<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u4fdd\u5b88\u6027\u306e\u78ba\u4fdd<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u30c6\u30b9\u30c8\u30d8\u30eb\u30d1\u30fc\u306e\u4f5c\u6210<\/li>\n\n\n\n<li>\u30ab\u30b9\u30bf\u30e0\u30a2\u30b5\u30fc\u30b7\u30e7\u30f3\u306e\u6d3b\u7528<\/li>\n\n\n\n<li>\u5171\u901a\u51e6\u7406\u306e\u62bd\u8c61\u5316<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u8a2d\u8a08\u30d1\u30bf\u30fc\u30f3\u3092\u9069\u5207\u306b\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u4fdd\u5b88\u6027\u304c\u9ad8\u304f\u7406\u89e3\u3057\u3084\u3059\u3044\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u3092\u4f5c\u6210\u3067\u304d\u307e\u3059\u3002\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u30c1\u30fc\u30e0\u3067\u306e\u6d3b\u7528\u306b\u5411\u3051\u305f\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-28\">\u3088\u304f\u3042\u308bverify\u306e\u30a8\u30e9\u30fc\u3068\u89e3\u6c7a\u65b9\u6cd5<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-29\">WantedButNotInvoked\u5bfe\u7b56\u65b9\u6cd5<\/h3>\n\n\n\n<p><code>WantedButNotInvoked<\/code>\u306f\u6700\u3082\u4e00\u822c\u7684\u306aMockito.verify\u306e\u30a8\u30e9\u30fc\u306e\u4e00\u3064\u3067\u3059\u3002\u3053\u306e\u30a8\u30e9\u30fc\u306f\u3001\u671f\u5f85\u3055\u308c\u305f\u30e1\u30bd\u30c3\u30c9\u547c\u3073\u51fa\u3057\u304c\u5b9f\u969b\u306b\u306f\u884c\u308f\u308c\u306a\u304b\u3063\u305f\u5834\u5408\u306b\u767a\u751f\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-30\">1. \u30a8\u30e9\u30fc\u306e\u5178\u578b\u7684\u306a\u4f8b<\/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\npublic void demonstrateWantedButNotInvoked() {\n    UserService userService = mock(UserService.class);\n\n    \/\/ \u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3073\u51fa\u3055\u306a\u3044\n\n    \/\/ \u4ee5\u4e0b\u3067\u30a8\u30e9\u30fc\u304c\u767a\u751f\n    verify(userService).deleteUser(\"userId\");\n    \/\/ org.mockito.exceptions.verification.WantedButNotInvoked:\n    \/\/ Wanted but not invoked: userService.deleteUser(\"userId\");\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-31\">2. \u4e00\u822c\u7684\u306a\u539f\u56e0\u3068\u89e3\u6c7a\u65b9\u6cd5<\/h4>\n\n\n<div id=\"id-ef2d1323-15ca-4126-923b-3c9ca8f69c4e\">\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u539f\u56e0<\/th><th>\u89e3\u6c7a\u65b9\u6cd5<\/th><th>\u30b3\u30fc\u30c9\u4f8b<\/th><\/tr><\/thead><tbody><tr><td>\u30e1\u30bd\u30c3\u30c9\u672a\u547c\u3073\u51fa\u3057<\/td><td>\u547c\u3073\u51fa\u3057\u306e\u78ba\u8a8d<\/td><td>\u30c7\u30d0\u30c3\u30b0\u30ed\u30b0\u306e\u8ffd\u52a0<\/td><\/tr><tr><td>\u5f15\u6570\u306e\u4e0d\u4e00\u81f4<\/td><td>\u5f15\u6570\u30de\u30c3\u30c1\u30e3\u30fc\u306e\u4f7f\u7528<\/td><td><code>verify(mock).method(any())<\/code><\/td><\/tr><tr><td>\u30bf\u30a4\u30df\u30f3\u30b0\u306e\u554f\u984c<\/td><td>\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u306e\u8ffd\u52a0<\/td><td><code>verify(mock, timeout(1000))<\/code><\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n<h4 class=\"wp-block-heading\" id=\"i-32\">3. \u4f53\u7cfb\u7684\u306a\u89e3\u6c7a\u30a2\u30d7\u30ed\u30fc\u30c1<\/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\npublic void demonstrateSystematicDebugging() {\n    UserService userService = mock(UserService.class);\n\n    \/\/ \u30c7\u30d0\u30c3\u30b0\u7528\u306e\u30ea\u30b9\u30ca\u30fc\u8ffd\u52a0\n    MockitoSession session = Mockito.mockitoSession()\n        .initMocks(this)\n        .strictness(Strictness.WARN)\n        .startMocking();\n\n    try {\n        \/\/ \u30c6\u30b9\u30c8\u5bfe\u8c61\u306e\u30e1\u30bd\u30c3\u30c9\u5b9f\u884c\n        userService.deleteUser(\"userId\");\n\n        \/\/ \u6bb5\u968e\u7684\u306a\u691c\u8a3c\n        verify(userService).deleteUser(argThat(id -&gt; {\n            System.out.println(\"Actual argument: \" + id);\n            return id.equals(\"userId\");\n        }));\n    } finally {\n        session.finishMocking();\n    }\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-33\">TooManyActualInvocations\u306e\u89e3\u6c7a\u624b\u9806<\/h3>\n\n\n\n<p><code>TooManyActualInvocations<\/code>\u30a8\u30e9\u30fc\u306f\u3001\u30e1\u30bd\u30c3\u30c9\u304c\u671f\u5f85\u4ee5\u4e0a\u306e\u56de\u6570\u547c\u3073\u51fa\u3055\u308c\u305f\u5834\u5408\u306b\u767a\u751f\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-34\">1. \u30a8\u30e9\u30fc\u30d1\u30bf\u30fc\u30f3\u306e\u7279\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=\"\">@Test\npublic void demonstrateTooManyInvocations() {\n    EmailService emailService = mock(EmailService.class);\n\n    \/\/ \u8907\u6570\u56de\u547c\u3073\u51fa\u3057\n    emailService.sendEmail(\"test@example.com\");\n    emailService.sendEmail(\"test@example.com\");\n\n    \/\/ \u4ee5\u4e0b\u3067\u30a8\u30e9\u30fc\u304c\u767a\u751f\n    verify(emailService).sendEmail(\"test@example.com\");\n    \/\/ org.mockito.exceptions.verification.TooManyActualInvocations:\n    \/\/ Wanted 1 time but was called 2 times\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-35\">2. \u89e3\u6c7a\u306e\u305f\u3081\u306e\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8<\/h4>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u547c\u3073\u51fa\u3057\u56de\u6570\u306e\u78ba\u8a8d<\/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\u78ba\u306a\u56de\u6570\u3092\u6307\u5b9a\nverify(emailService, times(2)).sendEmail(any());\n\n\/\/ \u307e\u305f\u306f\u7bc4\u56f2\u3092\u6307\u5b9a\nverify(emailService, atLeast(1)).sendEmail(any());\nverify(emailService, atMost(3)).sendEmail(any());<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li>\u91cd\u8907\u547c\u3073\u51fa\u3057\u306e\u7279\u5b9a<\/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\npublic void demonstrateInvocationTracking() {\n    EmailService emailService = mock(EmailService.class);\n\n    \/\/ \u547c\u3073\u51fa\u3057\u3092\u8a18\u9332\n    ArgumentCaptor&lt;String&gt; captor = ArgumentCaptor.forClass(String.class);\n\n    emailService.sendEmail(\"test1@example.com\");\n    emailService.sendEmail(\"test2@example.com\");\n\n    \/\/ \u5168\u3066\u306e\u547c\u3073\u51fa\u3057\u3092\u6355\u6349\n    verify(emailService, times(2)).sendEmail(captor.capture());\n    List&lt;String&gt; allValues = captor.getAllValues();\n\n    \/\/ \u547c\u3073\u51fa\u3057\u306e\u5206\u6790\n    allValues.forEach(System.out::println);\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-36\">NullPointerException\u3092\u9632\u3050\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h3>\n\n\n\n<p>Mockito\u3092\u4f7f\u7528\u3059\u308b\u969b\u306eNullPointerException\u306f\u3001\u4e3b\u306b\u30e2\u30c3\u30af\u306e\u521d\u671f\u5316\u3084\u8a2d\u5b9a\u306e\u554f\u984c\u304b\u3089\u767a\u751f\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-37\">1. \u4e00\u822c\u7684\u306a\u539f\u56e0\u3068\u5bfe\u7b56<\/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\npublic void demonstrateNullPointerPrevention() {\n    \/\/ \u60aa\u3044\u4f8b\n    UserService userService;  \/\/ \u521d\u671f\u5316\u3055\u308c\u3066\u3044\u306a\u3044\n\n    \/\/ \u826f\u3044\u4f8b\n    @Mock\n    UserService userService;  \/\/ @Mock \u30a2\u30ce\u30c6\u30fc\u30b7\u30e7\u30f3\u3092\u4f7f\u7528\n\n    @Before\n    public void setup() {\n        MockitoAnnotations.openMocks(this);\n    }\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-38\">2. \u4e88\u9632\u7684\u30a2\u30d7\u30ed\u30fc\u30c1<\/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\npublic void demonstrateDefensiveMocking() {\n    UserService userService = mock(UserService.class);\n\n    \/\/ null\u3092\u8fd4\u3059\u53ef\u80fd\u6027\u306e\u3042\u308b\u30e1\u30bd\u30c3\u30c9\u306b\u5bfe\u3059\u308b\u9632\u5fa1\n    when(userService.findById(any()))\n        .thenReturn(Optional.empty());  \/\/ null\u306e\u4ee3\u308f\u308a\u306bOptional\u3092\u4f7f\u7528\n\n    \/\/ \u5f15\u6570\u306enull\u30c1\u30a7\u30c3\u30af\n    when(userService.createUser(argThat(user -&gt; \n        Objects.nonNull(user) &amp;&amp; \n        Objects.nonNull(user.getName())\n    ))).thenReturn(true);\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-39\">3. \u30a8\u30e9\u30fc\u767a\u751f\u6642\u306e\u30c7\u30d0\u30c3\u30b0\u624b\u9806<\/h4>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u30e2\u30c3\u30af\u306e\u521d\u671f\u5316\u78ba\u8a8d<\/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\npublic void demonstrateDebugProcess() {\n    \/\/ \u30e2\u30c3\u30af\u306e\u4f5c\u6210\u3092\u78ba\u8a8d\n    UserService userService = mock(UserService.class);\n    assertNotNull(\"Mock should not be null\", userService);\n\n    \/\/ \u30b9\u30bf\u30d6\u306e\u8a2d\u5b9a\u3092\u78ba\u8a8d\n    when(userService.findById(\"testId\"))\n        .thenReturn(new User(\"test\"));\n\n    \/\/ \u30e1\u30bd\u30c3\u30c9\u547c\u3073\u51fa\u3057\u306e\u691c\u8a3c\n    User result = userService.findById(\"testId\");\n    assertNotNull(\"Result should not be null\", result);\n}<\/pre>\n\n\n\n<p class=\"is-style-sango-paragraph-idea-alt\"><strong>\u5b9f\u88c5\u306e\u30dd\u30a4\u30f3\u30c8\uff1a<\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30a8\u30e9\u30fc\u9632\u6b62\u306e\u57fa\u672c\u539f\u5247<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u30e2\u30c3\u30af\u306f\u5fc5\u305a\u521d\u671f\u5316\u3059\u308b<\/li>\n\n\n\n<li>\u30b9\u30bf\u30d6\u306e\u623b\u308a\u5024\u306f\u614e\u91cd\u306b\u8a2d\u5b9a\u3059\u308b<\/li>\n\n\n\n<li>\u5f15\u6570\u306e\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u3092\u9069\u5207\u306b\u884c\u3046<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u30c7\u30d0\u30c3\u30b0\u306e\u52b9\u7387\u5316<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u6ce8\u610f\u6df1\u304f\u8aad\u3080<\/li>\n\n\n\n<li>\u30b9\u30c6\u30c3\u30d7\u30d0\u30a4\u30b9\u30c6\u30c3\u30d7\u3067\u554f\u984c\u3092\u5207\u308a\u5206\u3051\u308b<\/li>\n\n\n\n<li>\u30c6\u30b9\u30c8\u306e\u610f\u56f3\u3092\u660e\u78ba\u306b\u3059\u308b<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u4fdd\u5b88\u6027\u306e\u5411\u4e0a<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u306b\u3082\u9069\u5207\u306a\u30b3\u30e1\u30f3\u30c8\u3092\u5165\u308c\u308b<\/li>\n\n\n\n<li>\u8907\u96d1\u306a\u30c6\u30b9\u30c8\u306f\u5c0f\u3055\u304f\u5206\u5272\u3059\u308b<\/li>\n\n\n\n<li>\u30a8\u30e9\u30fc\u30b1\u30fc\u30b9\u3082\u8003\u616e\u3057\u305f\u30c6\u30b9\u30c8\u3092\u66f8\u304f<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u30a8\u30e9\u30fc\u5bfe\u7b56\u3092\u7406\u89e3\u3057\u5b9f\u8df5\u3059\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u5b89\u5b9a\u3057\u305f\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u3092\u4f5c\u6210\u3067\u304d\u307e\u3059\u3002\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001verify\u3092\u4f7f\u7528\u3057\u305f\u30c6\u30b9\u30c8\u306e\u8a2d\u8a08\u30d1\u30bf\u30fc\u30f3\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-40\">\u30c1\u30fc\u30e0\u3067\u306e\u6d3b\u7528\u306b\u5411\u3051\u305f\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-41\">\u30b3\u30fc\u30c9\u30ec\u30d3\u30e5\u30fc\u3067\u6307\u6458\u3055\u308c\u3084\u3059\u3044verify\u306e\u554f\u984c\u70b9<\/h3>\n\n\n\n<p>\u30b3\u30fc\u30c9\u30ec\u30d3\u30e5\u30fc\u306e\u52b9\u7387\u3092\u4e0a\u3052\u3001\u54c1\u8cea\u3092\u78ba\u4fdd\u3059\u308b\u305f\u3081\u306b\u3001\u3088\u304f\u3042\u308b\u554f\u984c\u70b9\u3068\u305d\u306e\u6539\u5584\u65b9\u6cd5\u3092\u7406\u89e3\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-42\">1. \u904e\u5270\u306a\u691c\u8a3c<\/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=\"\">\/\/ \u60aa\u3044\u4f8b\uff1a\u3059\u3079\u3066\u306e\u5185\u90e8\u52d5\u4f5c\u3092\u691c\u8a3c\n@Test\npublic void badExampleOverVerification() {\n    UserService userService = mock(UserService.class);\n    EmailService emailService = mock(EmailService.class);\n    LogService logService = mock(LogService.class);\n\n    UserManager manager = new UserManager(userService, emailService, logService);\n    manager.createUser(\"test\", \"test@example.com\");\n\n    verify(userService).validateEmail(\"test@example.com\");\n    verify(userService).validateUsername(\"test\");\n    verify(userService).checkDuplicate(\"test\");\n    verify(userService).saveUser(any());\n    verify(emailService).sendWelcomeEmail(any());\n    verify(logService).logUserCreation(any());\n}\n\n\/\/ \u826f\u3044\u4f8b\uff1a\u91cd\u8981\u306a\u7d50\u679c\u306e\u307f\u3092\u691c\u8a3c\n@Test\npublic void goodExampleFocusedVerification() {\n    UserService userService = mock(UserService.class);\n    EmailService emailService = mock(EmailService.class);\n    LogService logService = mock(LogService.class);\n\n    UserManager manager = new UserManager(userService, emailService, logService);\n    manager.createUser(\"test\", \"test@example.com\");\n\n    \/\/ \u91cd\u8981\u306a\u7d50\u679c\u306e\u307f\u3092\u691c\u8a3c\n    verify(userService).saveUser(argThat(user -&gt; \n        user.getUsername().equals(\"test\") &amp;&amp; \n        user.getEmail().equals(\"test@example.com\")\n    ));\n    verify(emailService).sendWelcomeEmail(any());\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-43\">2. \u4e0d\u9069\u5207\u306a\u691c\u8a3c\u9806\u5e8f<\/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=\"\">\/\/ \u60aa\u3044\u4f8b\uff1a\u9806\u5e8f\u306e\u691c\u8a3c\u304c\u4e0d\u8981\u306a\u5834\u5408\u3067\u3082\u6307\u5b9a\n@Test\npublic void badExampleUnnecessaryOrder() {\n    OrderService orderService = mock(OrderService.class);\n    PaymentService paymentService = mock(PaymentService.class);\n\n    OrderProcessor processor = new OrderProcessor(orderService, paymentService);\n    processor.processOrder(\"ORD001\");\n\n    \/\/ \u9806\u5e8f\u306f\u91cd\u8981\u3067\u306a\u3044\u306e\u306b\u6307\u5b9a\u3057\u3066\u3044\u308b\n    InOrder inOrder = inOrder(orderService, paymentService);\n    inOrder.verify(orderService).validateOrder(\"ORD001\");\n    inOrder.verify(paymentService).processPayment(any());\n}\n\n\/\/ \u826f\u3044\u4f8b\uff1a\u5fc5\u8981\u306a\u5834\u5408\u306e\u307f\u9806\u5e8f\u3092\u691c\u8a3c\n@Test\npublic void goodExampleOrderVerification() {\n    TransactionService transactionService = mock(TransactionService.class);\n\n    \/\/ \u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u51e6\u7406\u3067\u306f\u9806\u5e8f\u304c\u91cd\u8981\n    transactionService.beginTransaction();\n    transactionService.commit();\n\n    InOrder inOrder = inOrder(transactionService);\n    inOrder.verify(transactionService).beginTransaction();\n    inOrder.verify(transactionService).commit();\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-44\">\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u306e\u6a19\u6e96\u5316\u3068verify\u306e\u4f7f\u7528\u6307\u91dd<\/h3>\n\n\n\n<p>\u30c1\u30fc\u30e0\u5168\u4f53\u3067\u4e00\u8cab\u6027\u306e\u3042\u308b\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u3092\u4f5c\u6210\u3059\u308b\u305f\u3081\u306e\u6307\u91dd\u3092\u8a2d\u5b9a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-45\">1. \u30c6\u30b9\u30c8\u30af\u30e9\u30b9\u306e\u30c6\u30f3\u30d7\u30ec\u30fc\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=\"\">public class StandardTestTemplate {\n    \/\/ \u5171\u901a\u306e\u30e2\u30c3\u30af\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\n    @Mock\n    private UserService userService;\n    @Mock\n    private EmailService emailService;\n\n    \/\/ \u30c6\u30b9\u30c8\u5bfe\u8c61\u30af\u30e9\u30b9\n    private UserManager userManager;\n\n    @Before\n    public void setup() {\n        MockitoAnnotations.openMocks(this);\n        userManager = new UserManager(userService, emailService);\n    }\n\n    @Test\n    public void shouldSuccessfullyCreateUser() {\n        \/\/ Given\n        String username = \"testUser\";\n        String email = \"test@example.com\";\n        when(userService.isEmailAvailable(email)).thenReturn(true);\n\n        \/\/ When\n        userManager.createUser(username, email);\n\n        \/\/ Then\n        verify(userService).saveUser(argThat(user -&gt; \n            user.getUsername().equals(username) &amp;&amp;\n            user.getEmail().equals(email)\n        ));\n    }\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-46\">2. \u547d\u540d\u898f\u7d04\u3068\u30b3\u30e1\u30f3\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=\"\">\/\/ \u30c6\u30b9\u30c8\u30e1\u30bd\u30c3\u30c9\u306e\u547d\u540d\u898f\u7d04\npublic class UserServiceTest {\n    @Test\n    public void shouldSendWelcomeEmail_whenUserIsCreated() {\n        \/\/ \u30c6\u30b9\u30c8\u306e\u8aac\u660e\u3092\u30b3\u30e1\u30f3\u30c8\u3067\u8a18\u8f09\n        \/\/ Given: \u65b0\u898f\u30e6\u30fc\u30b6\u30fc\u4f5c\u6210\u6642\u306e\u6761\u4ef6\n        \/\/ When: \u30e6\u30fc\u30b6\u30fc\u304c\u4f5c\u6210\u3055\u308c\u305f\u6642\n        \/\/ Then: \u30a6\u30a7\u30eb\u30ab\u30e0\u30e1\u30fc\u30eb\u304c\u9001\u4fe1\u3055\u308c\u308b\u3053\u3068\n    }\n\n    @Test\n    public void shouldNotifyAdmin_whenUserFailsToCreate() {\n        \/\/ \u30c6\u30b9\u30c8\u306e\u8aac\u660e\u3092\u30b3\u30e1\u30f3\u30c8\u3067\u8a18\u8f09\n        \/\/ Given: \u30e6\u30fc\u30b6\u30fc\u4f5c\u6210\u304c\u5931\u6557\u3059\u308b\u6761\u4ef6\n        \/\/ When: \u30e6\u30fc\u30b6\u30fc\u4f5c\u6210\u3092\u8a66\u307f\u305f\u6642\n        \/\/ Then: \u7ba1\u7406\u8005\u306b\u901a\u77e5\u3055\u308c\u308b\u3053\u3068\n    }\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-47\">\u30e2\u30c3\u30af\u306e\u4f7f\u3044\u3059\u304e\u3092\u9632\u3050\u305f\u3081\u306e\u8a2d\u8a08\u6307\u91dd<\/h3>\n\n\n\n<p>\u30e2\u30c3\u30af\u306e\u904e\u5270\u306a\u4f7f\u7528\u306f\u3001\u30c6\u30b9\u30c8\u306e\u4fdd\u5b88\u6027\u3068\u4fe1\u983c\u6027\u3092\u4f4e\u4e0b\u3055\u305b\u308b\u539f\u56e0\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-48\">1. \u30e2\u30c3\u30af\u4f7f\u7528\u306e\u5224\u65ad\u57fa\u6e96<\/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=\"\">\/\/ \u60aa\u3044\u4f8b\uff1a\u3059\u3079\u3066\u306e\u4f9d\u5b58\u3092\u30e2\u30c3\u30af\u5316\npublic class BadExample {\n    @Mock\n    private UserRepository userRepo;\n    @Mock\n    private ValidationService validator;\n    @Mock\n    private DateTimeService dateTime;  \/\/ \u4e0d\u8981\u306a\u30e2\u30c3\u30af\n\n    @Test\n    public void overMockedTest() {\n        when(dateTime.now()).thenReturn(LocalDateTime.now());  \/\/ \u4e0d\u8981\n        \/\/ ...\n    }\n}\n\n\/\/ \u826f\u3044\u4f8b\uff1a\u5fc5\u8981\u306a\u3082\u306e\u3060\u3051\u30e2\u30c3\u30af\u5316\npublic class GoodExample {\n    @Mock\n    private UserRepository userRepo;  \/\/ \u5916\u90e8\u4f9d\u5b58\u306a\u306e\u3067\u30e2\u30c3\u30af\u5316\n    private ValidationService validator = new ValidationService();  \/\/ \u7d14\u7c8b\u306a\u30ed\u30b8\u30c3\u30af\u306a\u306e\u3067\u5b9f\u88c5\u3092\u4f7f\u7528\n\n    @Test\n    public void appropriatelyMockedTest() {\n        \/\/ \u30c6\u30b9\u30c8\u306b\u5fc5\u8981\u306a\u6700\u5c0f\u9650\u306e\u30e2\u30c3\u30af\u306e\u307f\u4f7f\u7528\n    }\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-49\">2. \u30c6\u30b9\u30c8\u5bb9\u6613\u6027\u3092\u8003\u616e\u3057\u305f\u8a2d\u8a08<\/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=\"\">\/\/ \u826f\u3044\u8a2d\u8a08\u4f8b\uff1a\u30c6\u30b9\u30bf\u30d3\u30ea\u30c6\u30a3\u3092\u8003\u616e\u3057\u305f\u4f9d\u5b58\u6ce8\u5165\npublic class UserRegistrationService {\n    private final UserRepository userRepo;\n    private final EmailValidator emailValidator;\n    private final NotificationService notificationService;\n\n    \/\/ \u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u3067\u4f9d\u5b58\u95a2\u4fc2\u3092\u660e\u78ba\u306b\n    public UserRegistrationService(\n        UserRepository userRepo,\n        EmailValidator emailValidator,\n        NotificationService notificationService\n    ) {\n        this.userRepo = userRepo;\n        this.emailValidator = emailValidator;\n        this.notificationService = notificationService;\n    }\n\n    \/\/ \u30d3\u30b8\u30cd\u30b9\u30ed\u30b8\u30c3\u30af\u3068\u5916\u90e8\u4f9d\u5b58\u3092\u5206\u96e2\n    public RegistrationResult registerUser(UserDto userDto) {\n        if (!emailValidator.isValid(userDto.getEmail())) {\n            return RegistrationResult.invalid(\"Invalid email\");\n        }\n\n        User user = userRepo.save(User.fromDto(userDto));\n        notificationService.sendWelcomeEmail(user);\n        return RegistrationResult.success(user);\n    }\n}<\/pre>\n\n\n\n<p class=\"is-style-sango-paragraph-idea-alt\"><strong>\u5b9f\u88c5\u306e\u30dd\u30a4\u30f3\u30c8\uff1a<\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30b3\u30fc\u30c9\u30ec\u30d3\u30e5\u30fc\u306e\u52b9\u7387\u5316<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u691c\u8a3c\u306e\u7bc4\u56f2\u3092\u9069\u5207\u306b\u8a2d\u5b9a<\/li>\n\n\n\n<li>\u9806\u5e8f\u306e\u691c\u8a3c\u306f\u5fc5\u8981\u306a\u5834\u5408\u306e\u307f<\/li>\n\n\n\n<li>\u30c6\u30b9\u30c8\u306e\u610f\u56f3\u3092\u660e\u78ba\u306b\u8a18\u8ff0<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u6a19\u6e96\u5316\u306b\u3088\u308b\u30e1\u30ea\u30c3\u30c8<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u30c1\u30fc\u30e0\u5185\u3067\u306e\u4e00\u8cab\u6027\u78ba\u4fdd<\/li>\n\n\n\n<li>\u30ec\u30d3\u30e5\u30fc\u52b9\u7387\u306e\u5411\u4e0a<\/li>\n\n\n\n<li>\u65b0\u30e1\u30f3\u30d0\u30fc\u306e\u5b66\u7fd2\u66f2\u7dda\u306e\u7de9\u548c<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u9069\u5207\u306a\u30e2\u30c3\u30af\u4f7f\u7528<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u5916\u90e8\u4f9d\u5b58\u306e\u307f\u30e2\u30c3\u30af\u5316<\/li>\n\n\n\n<li>\u30d3\u30b8\u30cd\u30b9\u30ed\u30b8\u30c3\u30af\u306f\u5b9f\u88c5\u3092\u4f7f\u7528<\/li>\n\n\n\n<li>\u30c6\u30b9\u30bf\u30d3\u30ea\u30c6\u30a3\u3092\u8003\u616e\u3057\u305f\u8a2d\u8a08<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3092\u9069\u5207\u306b\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u30c1\u30fc\u30e0\u5168\u4f53\u306e\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u306e\u54c1\u8cea\u3068\u4fdd\u5b88\u6027\u3092\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-50\">\u307e\u3068\u3081\uff1a\u52b9\u679c\u7684\u306aMockito.verify\u306e\u6d3b\u7528\u306b\u5411\u3051\u3066<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-51\">\u672c\u8a18\u4e8b\u3067\u5b66\u3093\u3060\u91cd\u8981\u306a\u30dd\u30a4\u30f3\u30c8<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u57fa\u672c\u6982\u5ff5\u3068\u4f7f\u3044\u65b9<\/strong>\n<ul class=\"wp-block-list\">\n<li>verify\u30e1\u30bd\u30c3\u30c9\u306f\u3001\u30e2\u30c3\u30af\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u632f\u308b\u821e\u3044\u3092\u691c\u8a3c\u3059\u308b\u305f\u3081\u306e\u5f37\u529b\u306a\u30c4\u30fc\u30eb<\/li>\n\n\n\n<li>\u57fa\u672c\u69cb\u6587\u304b\u3089\u5fdc\u7528\u7684\u306a\u4f7f\u3044\u65b9\u307e\u3067\u3001\u6bb5\u968e\u7684\u306a\u7406\u89e3\u304c\u91cd\u8981<\/li>\n\n\n\n<li>\u9069\u5207\u306a\u5f15\u6570\u30de\u30c3\u30c1\u30e3\u30fc\u306e\u9078\u629e\u304c\u52b9\u679c\u7684\u306a\u30c6\u30b9\u30c8\u306e\u9375<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u5b9f\u8df5\u7684\u306a\u6d3b\u7528\u30d1\u30bf\u30fc\u30f3<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u975e\u540c\u671f\u51e6\u7406\u306e\u30c6\u30b9\u30c8\u624b\u6cd5<\/li>\n\n\n\n<li>\u4f8b\u5916\u51e6\u7406\u306e\u9069\u5207\u306a\u691c\u8a3c\u65b9\u6cd5<\/li>\n\n\n\n<li>\u30b9\u30d1\u30a4\u3068\u30e2\u30c3\u30af\u306e\u4f7f\u3044\u5206\u3051<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u3088\u304f\u3042\u308b\u30a8\u30e9\u30fc\u3078\u306e\u5bfe\u5fdc<\/strong>\n<ul class=\"wp-block-list\">\n<li>WantedButNotInvoked\u306e\u539f\u56e0\u3068\u89e3\u6c7a<\/li>\n\n\n\n<li>TooManyActualInvocations\u306e\u9632\u6b62\u65b9\u6cd5<\/li>\n\n\n\n<li>NullPointerException\u3092\u56de\u907f\u3059\u308b\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u8a2d\u8a08\u30d1\u30bf\u30fc\u30f3\u3068\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/strong>\n<ul class=\"wp-block-list\">\n<li>Given-When-Then\u5f62\u5f0f\u3067\u306e\u30c6\u30b9\u30c8\u69cb\u9020\u5316<\/li>\n\n\n\n<li>\u30c6\u30b9\u30c8\u306e\u53ef\u8aad\u6027\u3068\u4fdd\u5b88\u6027\u306e\u5411\u4e0a<\/li>\n\n\n\n<li>\u30c1\u30fc\u30e0\u958b\u767a\u306b\u304a\u3051\u308b\u6a19\u6e96\u5316\u3068\u30ec\u30d3\u30e5\u30fc\u306e\u30dd\u30a4\u30f3\u30c8<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-52\">\u5b9f\u8df5\u306b\u5411\u3051\u305f\u30b9\u30c6\u30c3\u30d7<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u57fa\u672c\u304b\u3089\u59cb\u3081\u308b<\/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=\"\">   \/\/ \u6700\u3082\u30b7\u30f3\u30d7\u30eb\u306a\u5f62\u304b\u3089\u59cb\u3081\u307e\u3057\u3087\u3046\n   @Test\n   public void startWithBasics() {\n       UserService userService = mock(UserService.class);\n       userService.createUser(\"test\");\n       verify(userService).createUser(\"test\");\n   }<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u6bb5\u968e\u7684\u306a\u6539\u5584<\/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=\"\">   \/\/ \u57fa\u672c\u7684\u306a\u30c6\u30b9\u30c8\u304b\u3089\u5f90\u3005\u306b\u6539\u5584\u3092\u91cd\u306d\u308b\n   @Test\n   public void improveGradually() {\n       UserService userService = mock(UserService.class);\n\n       \/\/ \u57fa\u672c\u7684\u306a\u691c\u8a3c\u304b\u3089...\n       userService.createUser(\"test\");\n       verify(userService).createUser(\"test\");\n\n       \/\/ \u3088\u308a\u5805\u7262\u306a\u691c\u8a3c\u3078\n       verify(userService, times(1)).createUser(argThat(name -&gt;\n           name != null &amp;&amp; name.length() &gt; 0\n       ));\n   }<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u30c1\u30fc\u30e0\u5168\u4f53\u3067\u306e\u54c1\u8cea\u5411\u4e0a<\/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=\"\">   \/\/ \u30c1\u30fc\u30e0\u3067\u5171\u6709\u3067\u304d\u308b\u30c6\u30b9\u30c8\u30d8\u30eb\u30d1\u30fc\u306e\u4f8b\n   public class TestHelper {\n       public static UserServiceVerifier verifyUserService(UserService service) {\n           return new UserServiceVerifier(service);\n       }\n   }\n\n   @Test\n   public void teamwideQualityImprovement() {\n       UserService userService = mock(UserService.class);\n       userService.createUser(\"test\");\n\n       verifyUserService(userService)\n           .hasCreatedUser(\"test\")\n           .hasNotDeletedAnyUser();\n   }<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-53\">\u6b21\u306e\u30b9\u30c6\u30c3\u30d7\u306b\u5411\u3051\u3066<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u3055\u3089\u306a\u308b\u5b66\u7fd2\u306e\u65b9\u5411\u6027<\/strong>\n<ul class=\"wp-block-list\">\n<li>Mockito\u306e\u9ad8\u5ea6\u306a\u6a5f\u80fd\u306e\u63a2\u6c42<\/li>\n\n\n\n<li>\u30c6\u30b9\u30c8\u99c6\u52d5\u958b\u767a\uff08TDD\uff09\u3068\u306e\u7d44\u307f\u5408\u308f\u305b<\/li>\n\n\n\n<li>\u30b3\u30fc\u30c9\u30ab\u30d0\u30ec\u30c3\u30b8\u306e\u5411\u4e0a<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u5b9f\u8df5\u7684\u306a\u8ab2\u984c\u3078\u306e\u53d6\u308a\u7d44\u307f<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u5b9f\u969b\u306e\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u306e\u6bb5\u968e\u7684\u306a\u5c0e\u5165<\/li>\n\n\n\n<li>\u30c1\u30fc\u30e0\u5185\u3067\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u306e\u5171\u6709<\/li>\n\n\n\n<li>\u30ec\u30d3\u30e5\u30fc\u30d7\u30ed\u30bb\u30b9\u306e\u78ba\u7acb<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u7d99\u7d9a\u7684\u306a\u6539\u5584<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u306e\u5b9a\u671f\u7684\u306a\u898b\u76f4\u3057<\/li>\n\n\n\n<li>\u65b0\u3057\u3044\u30d1\u30bf\u30fc\u30f3\u3084\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u306e\u9069\u7528<\/li>\n\n\n\n<li>\u30c1\u30fc\u30e0\u30e1\u30f3\u30d0\u30fc\u3068\u306e\u77e5\u8b58\u5171\u6709<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-54\">\u304a\u308f\u308a\u306b<\/h3>\n\n\n\n<p>Mockito.verify\u306f\u3001\u5358\u4f53\u30c6\u30b9\u30c8\u306b\u304a\u3051\u308b\u691c\u8a3c\u3092\u5f37\u529b\u306b\u30b5\u30dd\u30fc\u30c8\u3059\u308b\u30c4\u30fc\u30eb\u3067\u3059\u3002\u672c\u8a18\u4e8b\u3067\u89e3\u8aac\u3057\u305f\u5185\u5bb9\u3092\u57fa\u306b\u3001\u307e\u305a\u306f\u57fa\u672c\u7684\u306a\u4f7f\u3044\u65b9\u304b\u3089\u59cb\u3081\u3001\u5f90\u3005\u306b\u5fdc\u7528\u7684\u306a\u6280\u8853\u3092\u53d6\u308a\u5165\u308c\u3066\u3044\u304f\u3053\u3068\u3092\u304a\u52e7\u3081\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u306e\u54c1\u8cea\u306f\u3001\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u5168\u4f53\u306e\u54c1\u8cea\u306b\u76f4\u7d50\u3057\u307e\u3059\u3002\u30c1\u30fc\u30e0\u5168\u4f53\u3067\u7d99\u7d9a\u7684\u306b\u6539\u5584\u3092\u91cd\u306d\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u958b\u767a\u304c\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u305c\u3072\u3001\u3053\u306e\u8a18\u4e8b\u3067\u5b66\u3093\u3060\u5185\u5bb9\u3092\u5b9f\u8df5\u3057\u3001\u3088\u308a\u826f\u3044\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u306e\u4f5c\u6210\u306b\u53d6\u308a\u7d44\u3093\u3067\u304f\u3060\u3055\u3044\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Warning: 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