{"id":602,"date":"2025-03-24T08:53:13","date_gmt":"2025-03-23T23:53:13","guid":{"rendered":"https:\/\/dexall.co.jp\/articles\/?p=602"},"modified":"2025-03-24T08:53:13","modified_gmt":"2025-03-23T23:53:13","slug":"%e3%80%90%e4%bf%9d%e5%ae%88%e6%80%a7%e6%8a%9c%e7%be%a4%e3%80%91junit-assertthat%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%9a7%e3%81%a4%e3%81%ae%e5%ae%9f","status":"publish","type":"post","link":"https:\/\/dexall.co.jp\/articles\/?p=602","title":{"rendered":"\u3010\u4fdd\u5b88\u6027\u629c\u7fa4\u3011JUnit assertThat\u306e\u4f7f\u3044\u65b9\u5b8c\u5168\u30ac\u30a4\u30c9\uff1a7\u3064\u306e\u5b9f\u8df5\u7684\u30c6\u30af\u30cb\u30c3\u30af"},"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\">assertThat\u3068\u306f\uff1f\u5f93\u6765\u306eassert\u3068\u306e\u9055\u3044\u3092\u89e3\u8aac<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-1\">assertThat\u304c\u751f\u307e\u308c\u305f\u80cc\u666f\u3068\u76ee\u7684<\/a>      <\/li>      <li>        <a href=\"#i-2\">\u5f93\u6765\u306eassert\u3068\u306e\u6587\u6cd5\u306e\u9055\u3044\u3092\u6bd4\u8f03<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-3\">assertThat\u304c\u3082\u305f\u3089\u3059\u53ef\u8aad\u6027\u306e\u5411\u4e0a<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-4\">assertThat\u306e\u57fa\u672c\u7684\u306a\u4f7f\u3044\u65b9\u3092\u5fb9\u5e95\u89e3\u8aac<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-5\">assertThat\u306e\u57fa\u672c\u69cb\u6587\u3092\u7406\u89e3\u3057\u3088\u3046<\/a>      <\/li>      <li>        <a href=\"#i-6\">\u4e3b\u8981\u306aMatcher\u306e\u4f7f\u3044\u65b9\u3068\u4f7f\u3044\u5206\u3051<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-7\">\u30ab\u30b9\u30bf\u30e0Matcher\u306e\u4f5c\u6210\u65b9\u6cd5<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-8\">\u5b9f\u8df5\u7684\u306aassertThat\u306e\u6d3b\u7528\u30c6\u30af\u30cb\u30c3\u30af7\u9078<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-9\">\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u306b\u5bfe\u3059\u308b\u67d4\u8edf\u306a\u30a2\u30b5\u30fc\u30b7\u30e7\u30f3<\/a>      <\/li>      <li>        <a href=\"#i-10\">\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u90e8\u5206\u7684\u306a\u691c\u8a3c\u65b9\u6cd5<\/a>      <\/li>      <li>        <a href=\"#i-11\">\u4f8b\u5916\u51e6\u7406\u306e\u30c6\u30b9\u30c8\u30c6\u30af\u30cb\u30c3\u30af<\/a>      <\/li>      <li>        <a href=\"#i-12\">\u8907\u6570\u306e\u6761\u4ef6\u3092\u7d44\u307f\u5408\u308f\u305b\u305f\u30c6\u30b9\u30c8\u65b9\u6cd5<\/a>      <\/li>      <li>        <a href=\"#i-13\">\u65e5\u4ed8\u30fb\u6642\u523b\u306b\u95a2\u3059\u308b\u30c6\u30b9\u30c8\u306e\u66f8\u304d\u65b9<\/a>      <\/li>      <li>        <a href=\"#i-14\">\u6587\u5b57\u5217\u306e\u9ad8\u5ea6\u306a\u691c\u8a3c\u65b9\u6cd5<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-15\">\u975e\u540c\u671f\u51e6\u7406\u306e\u30c6\u30b9\u30c8\u30c6\u30af\u30cb\u30c3\u30af<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-16\">assertThat\u3092\u4f7f\u3063\u305f\u5b9f\u88c5\u4f8b\u3068\u89e3\u8aac<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-17\">\u30ea\u30dd\u30b8\u30c8\u30ea\u30ec\u30a4\u30e4\u30fc\u306e\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u4f8b<\/a>      <\/li>      <li>        <a href=\"#i-18\">\u30b5\u30fc\u30d3\u30b9\u30ec\u30a4\u30e4\u30fc\u306e\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u4f8b<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-19\">\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30fc\u30ec\u30a4\u30e4\u30fc\u306e\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u4f8b<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-20\">assertThat\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3068\u30a2\u30f3\u30c1\u30d1\u30bf\u30fc\u30f3<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-21\">\u30c6\u30b9\u30c8\u306e\u8aad\u307f\u3084\u3059\u3055\u3092\u5411\u4e0a\u3055\u305b\u308bTips<\/a>      <\/li>      <li>        <a href=\"#i-25\">\u3088\u304f\u3042\u308b\u9593\u9055\u3044\u3068\u305d\u306e\u56de\u907f\u65b9\u6cd5<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-29\">\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u306e\u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0\u624b\u6cd5<\/a>      <\/li>    <\/ul>  <\/li>  <li class=\"last\">    <a href=\"#i-33\">\u307e\u3068\u3081\uff1aassertThat\u3067\u5b9f\u73fe\u3059\u308b\u4fdd\u5b88\u6027\u306e\u9ad8\u3044\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-34\">\u672c\u8a18\u4e8b\u3067\u5b66\u3093\u3060\u3053\u3068<\/a>      <\/li>      <li>        <a href=\"#i-35\">\u5b9f\u8df5\u306e\u305f\u3081\u306eNext Steps<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-36\">\u53c2\u8003\u30ea\u30bd\u30fc\u30b9<\/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\">assertThat\u3068\u306f\uff1f\u5f93\u6765\u306eassert\u3068\u306e\u9055\u3044\u3092\u89e3\u8aac<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-1\">assertThat\u304c\u751f\u307e\u308c\u305f\u80cc\u666f\u3068\u76ee\u7684<\/h3>\n\n\n\n<p>JUnit 4.4\u3067\u5c0e\u5165\u3055\u308c\u305f<code>assertThat<\/code>\u306f\u3001\u3088\u308a\u8868\u73fe\u529b\u8c4a\u304b\u3067\u53ef\u8aad\u6027\u306e\u9ad8\u3044\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u305f\u3081\u306b\u958b\u767a\u3055\u308c\u307e\u3057\u305f\u3002\u5f93\u6765\u306eassert\u30e1\u30bd\u30c3\u30c9\u306b\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u8ab2\u984c\u304c\u3042\u308a\u307e\u3057\u305f\uff1a<\/p>\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\">\u8ab2\u984c<\/div><\/div><div class=\"sng-box-msg__contents\">\n<ul class=\"wp-block-list\">\n<li>\u30c6\u30b9\u30c8\u306e\u610f\u56f3\u304c\u5206\u304b\u308a\u306b\u304f\u3044<\/li>\n\n\n\n<li>\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u304c\u4e0d\u89aa\u5207<\/li>\n\n\n\n<li>\u67d4\u8edf\u306a\u6bd4\u8f03\u304c\u96e3\u3057\u3044<\/li>\n<\/ul>\n<\/div><\/div><\/div>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u8ab2\u984c\u3092\u89e3\u6c7a\u3059\u308b\u305f\u3081\u3001Hamcrest matcher\u3092\u6d3b\u7528\u3057\u305f<code>assertThat<\/code>\u304c\u5c0e\u5165\u3055\u308c\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u5229\u70b9\u3092\u3082\u305f\u3089\u3057\u307e\u3057\u305f\uff1a<\/p>\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\">\u5229\u70b9<\/div><\/div><div class=\"sng-box-msg__contents\">\n<ul class=\"wp-block-list\">\n<li>\u81ea\u7136\u8a00\u8a9e\u306b\u8fd1\u3044\u8868\u73fe\u3067\u30c6\u30b9\u30c8\u304c\u66f8\u3051\u308b<\/li>\n\n\n\n<li>\u8a73\u7d30\u306a\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u304c\u81ea\u52d5\u751f\u6210\u3055\u308c\u308b<\/li>\n\n\n\n<li>\u67d4\u8edf\u3067\u62e1\u5f35\u53ef\u80fd\u306a\u6bd4\u8f03\u6a5f\u80fd<\/li>\n<\/ul>\n<\/div><\/div><\/div>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-2\">\u5f93\u6765\u306eassert\u3068\u306e\u6587\u6cd5\u306e\u9055\u3044\u3092\u6bd4\u8f03<\/h3>\n\n\n\n<p>\u5f93\u6765\u306eassert\u30e1\u30bd\u30c3\u30c9\u3068<code>assertThat<\/code>\u306e\u6700\u3082\u5927\u304d\u306a\u9055\u3044\u306f\u3001\u6587\u6cd5\u69cb\u9020\u306b\u3042\u308a\u307e\u3059\u3002\u4ee5\u4e0b\u3067\u5177\u4f53\u7684\u306a\u6bd4\u8f03\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\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=\"\">\/\/ \u5f93\u6765\u306eassert\nassertEquals(\"expected value\", actual);\nassertTrue(list.contains(element));\nassertNotNull(object);\n\n\/\/ assertThat\u3092\u4f7f\u7528\u3057\u305f\u5834\u5408\nassertThat(actual, is(\"expected value\"));\nassertThat(list, hasItem(element));\nassertThat(object, notNullValue());<\/pre>\n\n\n\n<p class=\"is-style-sango-paragraph-memo-alt\">\u4e3b\u306a\u9055\u3044\u306e\u30dd\u30a4\u30f3\u30c8\uff1a<\/p>\n\n\n<div id=\"id-a88535e8-8e5a-4097-a36f-562b1e14d7de\">\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u89b3\u70b9<\/th><th>\u5f93\u6765\u306eassert<\/th><th>assertThat<\/th><\/tr><\/thead><tbody><tr><td>\u6587\u6cd5\u69cb\u9020<\/td><td>\u30e1\u30bd\u30c3\u30c9\u540d\u3067\u5224\u5b9a\u6761\u4ef6\u3092\u8868\u73fe<\/td><td>Matcher\u3067\u5224\u5b9a\u6761\u4ef6\u3092\u8868\u73fe<\/td><\/tr><tr><td>\u5f15\u6570\u9806\u5e8f<\/td><td>\u671f\u5f85\u5024\u304c\u5148\u3001\u5b9f\u969b\u5024\u304c\u5f8c<\/td><td>\u5b9f\u969b\u5024\u304c\u5148\u3001Matcher\u304c\u5f8c<\/td><\/tr><tr><td>\u62e1\u5f35\u6027<\/td><td>\u65b0\u3057\u3044\u5224\u5b9a\u306b\u306f\u65b0\u30e1\u30bd\u30c3\u30c9\u304c\u5fc5\u8981<\/td><td>Matcher\u306e\u7d44\u307f\u5408\u308f\u305b\u3067\u5bfe\u5fdc\u53ef\u80fd<\/td><\/tr><tr><td>\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8<\/td><td>\u57fa\u672c\u7684\u306a\u60c5\u5831\u306e\u307f<\/td><td>\u3088\u308a\u8a73\u7d30\u306a\u60c5\u5831\u3092\u81ea\u52d5\u751f\u6210<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading\" id=\"i-3\">assertThat\u304c\u3082\u305f\u3089\u3059\u53ef\u8aad\u6027\u306e\u5411\u4e0a<\/h3>\n\n\n\n<p><code>assertThat<\/code>\u306e\u4f7f\u7528\u306b\u3088\u308a\u3001\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u306e\u53ef\u8aad\u6027\u304c\u5927\u304d\u304f\u5411\u4e0a\u3057\u307e\u3059\u3002\u5177\u4f53\u4f8b\u3067\u898b\u3066\u307f\u307e\u3057\u3087\u3046\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=\"\">\/\/ \u5f93\u6765\u306e\u65b9\u6cd5\nList&lt;String&gt; fruits = Arrays.asList(\"apple\", \"banana\", \"orange\");\nassertTrue(fruits.size() == 3);\nassertTrue(fruits.contains(\"apple\"));\nassertTrue(fruits.contains(\"banana\"));\nassertTrue(fruits.contains(\"orange\"));\n\n\/\/ assertThat\u3092\u4f7f\u7528\u3057\u305f\u5834\u5408\nList&lt;String&gt; fruits = Arrays.asList(\"apple\", \"banana\", \"orange\");\nassertThat(fruits, allOf(\n    hasSize(3),\n    hasItems(\"apple\", \"banana\", \"orange\")\n));<\/pre>\n\n\n\n<p class=\"is-style-sango-paragraph-memo-alt\">\u53ef\u8aad\u6027\u5411\u4e0a\u306e\u30dd\u30a4\u30f3\u30c8\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u81ea\u7136\u306a\u82f1\u8a9e\u8868\u73fe<\/strong>\n<ul class=\"wp-block-list\">\n<li><code>is()<\/code>, <code>not()<\/code>, <code>hasItem()<\/code>\u306a\u3069\u306eMatcher\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u30c6\u30b9\u30c8\u306e\u610f\u56f3\u304c\u82f1\u8a9e\u306e\u6587\u7ae0\u306e\u3088\u3046\u306b\u8aad\u3081\u308b<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u8907\u6570\u6761\u4ef6\u306e\u7d44\u307f\u5408\u308f\u305b<\/strong>\n<ul class=\"wp-block-list\">\n<li><code>allOf()<\/code>, <code>anyOf()<\/code>\u306a\u3069\u3092\u4f7f\u7528\u3057\u3066\u3001\u8907\u6570\u306e\u6761\u4ef6\u3092\u30b9\u30c3\u30ad\u30ea\u3068\u8a18\u8ff0\u3067\u304d\u308b<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u8a73\u7d30\u306a\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8<\/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=\"\">   \/\/ \u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u4f8b\n   \/\/ \u5f93\u6765\u306e\u65b9\u6cd5\n   \/\/ Expected true but was false\n\n   \/\/ assertThat\u306e\u5834\u5408\n   \/\/ Expected: a collection with size &lt;3&gt; and having items [\"apple\", \"banana\", \"orange\"]\n   \/\/ but: size was &lt;2&gt;<\/pre>\n\n\n\n<p>\u3053\u306e\u3088\u3046\u306b\u3001<code>assertThat<\/code>\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u306e\u610f\u56f3\u304c\u3088\u308a\u660e\u78ba\u306b\u306a\u308a\u3001\u4fdd\u5b88\u6027\u306e\u9ad8\u3044\u30c6\u30b9\u30c8\u3092\u66f8\u304f\u3053\u3068\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-4\">assertThat\u306e\u57fa\u672c\u7684\u306a\u4f7f\u3044\u65b9\u3092\u5fb9\u5e95\u89e3\u8aac<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-5\">assertThat\u306e\u57fa\u672c\u69cb\u6587\u3092\u7406\u89e3\u3057\u3088\u3046<\/h3>\n\n\n\n<p>assertThat\u306e\u57fa\u672c\u69cb\u6587\u306f\u4ee5\u4e0b\u306e\u5f62\u5f0f\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=\"\">assertThat(\u5b9f\u969b\u306e\u5024, Matcher);<\/pre>\n\n\n\n<p class=\"is-style-sango-paragraph-memo-alt\">\u5177\u4f53\u7684\u306a\u4f7f\u7528\u4f8b\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\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=\"\">import static org.hamcrest.CoreMatchers.*;\nimport static org.hamcrest.MatcherAssert.assertThat;\n\npublic class BasicAssertThatTest {\n    @Test\n    void basicAssertionExamples() {\n        \/\/ \u57fa\u672c\u7684\u306a\u7b49\u4fa1\u6027\u30c1\u30a7\u30c3\u30af\n        String actual = \"test value\";\n        assertThat(actual, is(\"test value\"));\n\n        \/\/ null\u30c1\u30a7\u30c3\u30af\n        String nullValue = null;\n        assertThat(nullValue, nullValue());\n\n        \/\/ \u5426\u5b9a\u306e\u30c1\u30a7\u30c3\u30af\n        assertThat(actual, not(\"wrong value\"));\n\n        \/\/ \u578b\u306e\u30c1\u30a7\u30c3\u30af\n        assertThat(actual, instanceOf(String.class));\n    }\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-6\">\u4e3b\u8981\u306aMatcher\u306e\u4f7f\u3044\u65b9\u3068\u4f7f\u3044\u5206\u3051<\/h3>\n\n\n\n<p>Matcher\u306f\u7528\u9014\u5225\u306b\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30ab\u30c6\u30b4\u30ea\u306b\u5206\u985e\u3067\u304d\u307e\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u57fa\u672c\u7684\u306a\u6bd4\u8f03Matcher<\/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 basicMatcherExamples() {\n    \/\/ \u7b49\u4fa1\u6027\u306e\u6bd4\u8f03\n    assertThat(\"value\", is(\"value\"));        \/\/ \u7b49\u3057\u3044\n    assertThat(\"value\", not(\"other\"));       \/\/ \u7b49\u3057\u304f\u306a\u3044\n    assertThat(null, nullValue());           \/\/ null\u3067\u3042\u308b\n    assertThat(\"value\", notNullValue());     \/\/ null\u3067\u306a\u3044\n\n    \/\/ \u6570\u5024\u306e\u6bd4\u8f03\n    assertThat(5, greaterThan(3));           \/\/ \u3088\u308a\u5927\u304d\u3044\n    assertThat(5, lessThan(7));              \/\/ \u3088\u308a\u5c0f\u3055\u3044\n    assertThat(5, greaterThanOrEqualTo(5));  \/\/ \u4ee5\u4e0a\n    assertThat(5, lessThanOrEqualTo(5));     \/\/ \u4ee5\u4e0b\n}<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u7528Matcher<\/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 collectionMatcherExamples() {\n    List&lt;String&gt; fruits = Arrays.asList(\"apple\", \"banana\", \"orange\");\n\n    \/\/ \u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u306e\u8981\u7d20\u30c1\u30a7\u30c3\u30af\n    assertThat(fruits, hasItem(\"apple\"));             \/\/ \u7279\u5b9a\u306e\u8981\u7d20\u3092\u542b\u3080\n    assertThat(fruits, hasItems(\"apple\", \"banana\"));  \/\/ \u8907\u6570\u306e\u8981\u7d20\u3092\u542b\u3080\n    assertThat(fruits, hasSize(3));                   \/\/ \u30b5\u30a4\u30ba\u306e\u30c1\u30a7\u30c3\u30af\n\n    \/\/ \u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u306e\u72b6\u614b\u30c1\u30a7\u30c3\u30af\n    assertThat(fruits, is(empty()));                  \/\/ \u7a7a\u306e\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\n    assertThat(fruits, is(not(empty())));            \/\/ \u7a7a\u3067\u306a\u3044\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\n\n    \/\/ \u9806\u5e8f\u3092\u8003\u616e\u3057\u305f\u30c1\u30a7\u30c3\u30af\n    assertThat(fruits, contains(\"apple\", \"banana\", \"orange\"));  \/\/ \u5b8c\u5168\u4e00\u81f4\uff08\u9806\u5e8f\u542b\u3080\uff09\n    assertThat(fruits, containsInAnyOrder(\"banana\", \"apple\", \"orange\"));  \/\/ \u9806\u5e8f\u4e0d\u554f\n}<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u6587\u5b57\u5217\u7528Matcher<\/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 stringMatcherExamples() {\n    String text = \"Hello, World!\";\n\n    \/\/ \u6587\u5b57\u5217\u306e\u90e8\u5206\u30c1\u30a7\u30c3\u30af\n    assertThat(text, startsWith(\"Hello\"));    \/\/ \u524d\u65b9\u4e00\u81f4\n    assertThat(text, endsWith(\"World!\"));     \/\/ \u5f8c\u65b9\u4e00\u81f4\n    assertThat(text, containsString(\"lo, W\")); \/\/ \u90e8\u5206\u4e00\u81f4\n\n    \/\/ \u6b63\u898f\u8868\u73fe\u306b\u3088\u308b\u30c1\u30a7\u30c3\u30af\n    assertThat(text, matchesPattern(\"Hello.*!\")); \/\/ \u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1\n\n    \/\/ \u5927\u6587\u5b57\u5c0f\u6587\u5b57\u3092\u7121\u8996\u3057\u305f\u30c1\u30a7\u30c3\u30af\n    assertThat(text, equalToIgnoringCase(\"HELLO, WORLD!\"));\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-7\">\u30ab\u30b9\u30bf\u30e0Matcher\u306e\u4f5c\u6210\u65b9\u6cd5<\/h3>\n\n\n\n<p>\u72ec\u81ea\u306eMatcher\u304c\u5fc5\u8981\u306a\u5834\u5408\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u4f5c\u6210\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=\"\">public class IsValidEmail extends TypeSafeMatcher&lt;String&gt; {\n    @Override\n    protected boolean matchesSafely(String email) {\n        \/\/ \u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u306e\u691c\u8a3c\u30ed\u30b8\u30c3\u30af\n        return email != null &amp;&amp; \n               email.matches(\"^[A-Za-z0-9+_.-]+@(.+)$\");\n    }\n\n    @Override\n    public void describeTo(Description description) {\n        description.appendText(\"a valid email address\");\n    }\n\n    \/\/ \u30d5\u30a1\u30af\u30c8\u30ea\u30fc\u30e1\u30bd\u30c3\u30c9\n    public static Matcher&lt;String&gt; isValidEmail() {\n        return new IsValidEmail();\n    }\n}\n\n\/\/ \u4f7f\u7528\u4f8b\n@Test\nvoid customMatcherExample() {\n    String email = \"test@example.com\";\n    assertThat(email, isValidEmail());\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\">\u30ab\u30b9\u30bf\u30e0Matcher\u3092\u4f5c\u6210\u3059\u308b\u969b\u306e\u91cd\u8981\u306a\u30dd\u30a4\u30f3\u30c8\uff1a<\/div><\/div><div class=\"sng-box-msg__contents\">\n<ol class=\"wp-block-list\">\n<li><strong>TypeSafeMatcher<\/strong>\u3092\u7d99\u627f\u3059\u308b\n<ul class=\"wp-block-list\">\n<li>\u578b\u5b89\u5168\u306aMatcher\u3092\u4f5c\u6210\u3067\u304d\u308b<\/li>\n\n\n\n<li>\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u306e\u578b\u30c1\u30a7\u30c3\u30af\u304c\u53ef\u80fd<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>matchesSafely<\/strong>\u30e1\u30bd\u30c3\u30c9\u306e\u5b9f\u88c5\n<ul class=\"wp-block-list\">\n<li>\u5b9f\u969b\u306e\u30de\u30c3\u30c1\u30f3\u30b0\u8ad6\u7406\u3092\u8a18\u8ff0<\/li>\n\n\n\n<li>null\u30c1\u30a7\u30c3\u30af\u306a\u3069\u306e\u57fa\u672c\u7684\u306a\u691c\u8a3c\u306f\u89aa\u30af\u30e9\u30b9\u3067\u5b9f\u65bd<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>describeTo<\/strong>\u30e1\u30bd\u30c3\u30c9\u306e\u5b9f\u88c5\n<ul class=\"wp-block-list\">\n<li>\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u751f\u6210\u306b\u4f7f\u7528<\/li>\n\n\n\n<li>\u671f\u5f85\u3059\u308b\u72b6\u614b\u3092\u660e\u78ba\u306b\u8a18\u8ff0<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u30d5\u30a1\u30af\u30c8\u30ea\u30fc\u30e1\u30bd\u30c3\u30c9<\/strong>\u306e\u63d0\u4f9b\n<ul class=\"wp-block-list\">\n<li>\u4f7f\u7528\u6642\u306e\u53ef\u8aad\u6027\u5411\u4e0a<\/li>\n\n\n\n<li>static import\u3067\u306e\u4f7f\u7528\u3092\u53ef\u80fd\u306b<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<\/div><\/div><\/div>\n\n\n\n<p>\u3053\u306e\u3088\u3046\u306b\u3001assertThat\u306f\u57fa\u672c\u7684\u306a\u4f7f\u7528\u65b9\u6cd5\u304b\u3089\u3001\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u307e\u3067\u67d4\u8edf\u306b\u5bfe\u5fdc\u3067\u304d\u308b\u5f37\u529b\u306a\u30c4\u30fc\u30eb\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-8\">\u5b9f\u8df5\u7684\u306aassertThat\u306e\u6d3b\u7528\u30c6\u30af\u30cb\u30c3\u30af7\u9078<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-9\">\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u306b\u5bfe\u3059\u308b\u67d4\u8edf\u306a\u30a2\u30b5\u30fc\u30b7\u30e7\u30f3<\/h3>\n\n\n\n<p>\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u306e\u30c6\u30b9\u30c8\u3067\u306f\u3001\u8981\u7d20\u306e\u5b58\u5728\u78ba\u8a8d\u3060\u3051\u3067\u306a\u304f\u3001\u9806\u5e8f\u3084\u6761\u4ef6\u306b\u5fdc\u3058\u305f\u691c\u8a3c\u304c\u5fc5\u8981\u306b\u306a\u308a\u307e\u3059\u3002<\/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\nvoid collectionAssertionExamples() {\n    List&lt;User&gt; users = Arrays.asList(\n        new User(\"Alice\", 25),\n        new User(\"Bob\", 30),\n        new User(\"Charlie\", 35)\n    );\n\n    \/\/ \u30ea\u30b9\u30c8\u5185\u306e\u7279\u5b9a\u306e\u6761\u4ef6\u3092\u6e80\u305f\u3059\u8981\u7d20\u306e\u691c\u8a3c\n    assertThat(users, hasItem(hasProperty(\"name\", is(\"Alice\"))));\n\n    \/\/ \u8907\u6570\u306e\u6761\u4ef6\u3092\u7d44\u307f\u5408\u308f\u305b\u305f\u691c\u8a3c\n    assertThat(users, everyItem(\n        hasProperty(\"age\", greaterThan(20))\n    ));\n\n    \/\/ \u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u306e\u5909\u63db\u7d50\u679c\u306e\u691c\u8a3c\n    assertThat(\n        users.stream()\n             .map(User::getName)\n             .collect(Collectors.toList()),\n        containsInAnyOrder(\"Charlie\", \"Bob\", \"Alice\")\n    );\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-10\">\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u90e8\u5206\u7684\u306a\u691c\u8a3c\u65b9\u6cd5<\/h3>\n\n\n\n<p>\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u7279\u5b9a\u306e\u30d5\u30a3\u30fc\u30eb\u30c9\u3084\u30d7\u30ed\u30d1\u30c6\u30a3\u306e\u307f\u3092\u691c\u8a3c\u3059\u308b\u5834\u5408\u306e\u624b\u6cd5\u3067\u3059\u3002<\/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\nvoid partialObjectVerificationExamples() {\n    Product product = new Product(\n        \"laptop\",\n        \"Latest model laptop\",\n        new Price(1000.00, \"USD\"),\n        LocalDate.now()\n    );\n\n    \/\/ \u7279\u5b9a\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u306e\u691c\u8a3c\n    assertThat(product, allOf(\n        hasProperty(\"name\", is(\"laptop\")),\n        hasProperty(\"price\", hasProperty(\"amount\", closeTo(1000.00, 0.01)))\n    ));\n\n    \/\/ \u30cd\u30b9\u30c8\u3055\u308c\u305f\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u691c\u8a3c\n    assertThat(product.getPrice(), allOf(\n        hasProperty(\"amount\", greaterThan(0.0)),\n        hasProperty(\"currency\", is(\"USD\"))\n    ));\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-11\">\u4f8b\u5916\u51e6\u7406\u306e\u30c6\u30b9\u30c8\u30c6\u30af\u30cb\u30c3\u30af<\/h3>\n\n\n\n<p>\u4f8b\u5916\u306e\u30c6\u30b9\u30c8\u3067\u306f\u3001\u4f8b\u5916\u306e\u578b\u3060\u3051\u3067\u306a\u304f\u3001\u30e1\u30c3\u30bb\u30fc\u30b8\u3084\u539f\u56e0\u3082\u542b\u3081\u3066\u691c\u8a3c\u3067\u304d\u307e\u3059\u3002<\/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\nvoid exceptionTestingExamples() {\n    \/\/ ExpectedException\u30eb\u30fc\u30eb\u4f7f\u7528\n    @Rule\n    public ExpectedException thrown = ExpectedException.none();\n\n    \/\/ \u4f8b\u5916\u306e\u8a73\u7d30\u306a\u691c\u8a3c\n    thrown.expect(IllegalArgumentException.class);\n    thrown.expectMessage(containsString(\"Invalid input\"));\n    thrown.expectCause(isA(NullPointerException.class));\n\n    \/\/ Java 8\u4ee5\u964d\u306e\u65b9\u6cd5\n    assertThatThrownBy(() -&gt; {\n        throw new IllegalArgumentException(\"Invalid input\");\n    })\n    .isInstanceOf(IllegalArgumentException.class)\n    .hasMessageContaining(\"Invalid input\");\n\n    \/\/ try-catch\u3092\u4f7f\u7528\u3057\u305f\u65b9\u6cd5\n    try {\n        someMethodThatThrowsException();\n        fail(\"Expected an exception to be thrown\");\n    } catch (Exception e) {\n        assertThat(e, allOf(\n            isA(IllegalArgumentException.class),\n            hasProperty(\"message\", containsString(\"Invalid input\"))\n        ));\n    }\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-12\">\u8907\u6570\u306e\u6761\u4ef6\u3092\u7d44\u307f\u5408\u308f\u305b\u305f\u30c6\u30b9\u30c8\u65b9\u6cd5<\/h3>\n\n\n\n<p>\u8907\u6570\u306e\u6761\u4ef6\u3092\u8ad6\u7406\u7684\u306b\u7d44\u307f\u5408\u308f\u305b\u3066\u3001\u3088\u308a\u8907\u96d1\u306a\u691c\u8a3c\u3092\u884c\u3046\u65b9\u6cd5\u3067\u3059\u3002<\/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\nvoid combinedConditionsExample() {\n    Order order = new Order(\"ORD001\", 150.00, \"PENDING\", 3);\n\n    \/\/ \u8907\u6570\u306e\u6761\u4ef6\u3092AND\u3067\u7d50\u5408\n    assertThat(order, allOf(\n        hasProperty(\"total\", greaterThan(100.00)),\n        hasProperty(\"status\", is(\"PENDING\")),\n        hasProperty(\"itemCount\", lessThan(5))\n    ));\n\n    \/\/ \u8907\u6570\u306e\u6761\u4ef6\u3092OR\u3067\u7d50\u5408\n    assertThat(order.getStatus(), anyOf(\n        is(\"PENDING\"),\n        is(\"PROCESSING\"),\n        is(\"COMPLETED\")\n    ));\n\n    \/\/ \u5426\u5b9a\u6761\u4ef6\u3068\u306e\u7d44\u307f\u5408\u308f\u305b\n    assertThat(order, allOf(\n        not(hasProperty(\"total\", lessThan(0.0))),\n        not(hasProperty(\"status\", isIn(Arrays.asList(\"CANCELLED\", \"REJECTED\"))))\n    ));\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-13\">\u65e5\u4ed8\u30fb\u6642\u523b\u306b\u95a2\u3059\u308b\u30c6\u30b9\u30c8\u306e\u66f8\u304d\u65b9<\/h3>\n\n\n\n<p>\u65e5\u4ed8\u3084\u6642\u523b\u306e\u691c\u8a3c\u306b\u306f\u3001\u5c02\u7528\u306eMatcher\u3092\u4f7f\u7528\u3059\u308b\u3068\u52b9\u679c\u7684\u3067\u3059\u3002<\/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\nvoid dateTimeTestingExamples() {\n    LocalDateTime now = LocalDateTime.now();\n    LocalDate today = LocalDate.now();\n\n    \/\/ \u65e5\u4ed8\u306e\u6bd4\u8f03\n    assertThat(today, isIn(\n        Arrays.asList(\n            LocalDate.now(),\n            LocalDate.now().plusDays(1)\n        )\n    ));\n\n    \/\/ \u6642\u9593\u7bc4\u56f2\u306e\u691c\u8a3c\n    assertThat(now, allOf(\n        greaterThan(LocalDateTime.now().minusHours(1)),\n        lessThan(LocalDateTime.now().plusHours(1))\n    ));\n\n    \/\/ \u30ab\u30b9\u30bf\u30e0Matcher\u3092\u4f7f\u7528\u3057\u305f\u65e5\u4ed8\u691c\u8a3c\n    assertThat(today, is(withinDays(7, LocalDate.now())));\n}\n\n\/\/ \u30ab\u30b9\u30bf\u30e0Matcher\u4f8b\npublic static Matcher&lt;LocalDate&gt; withinDays(int days, LocalDate baseDate) {\n    return new TypeSafeMatcher&lt;LocalDate&gt;() {\n        @Override\n        protected boolean matchesSafely(LocalDate date) {\n            return ChronoUnit.DAYS.between(baseDate, date) &lt;= days;\n        }\n\n        @Override\n        public void describeTo(Description description) {\n            description.appendText(\"within \" + days + \" days of \" + baseDate);\n        }\n    };\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-14\">\u6587\u5b57\u5217\u306e\u9ad8\u5ea6\u306a\u691c\u8a3c\u65b9\u6cd5<\/h3>\n\n\n\n<p>\u6587\u5b57\u5217\u306e\u691c\u8a3c\u3067\u306f\u3001\u6b63\u898f\u8868\u73fe\u3084\u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1\u30f3\u30b0\u3092\u6d3b\u7528\u3067\u304d\u307e\u3059\u3002<\/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\nvoid advancedStringValidationExamples() {\n    String text = \"Hello, World! This is a test message.\";\n\n    \/\/ \u8907\u6570\u306e\u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1\u30f3\u30b0\n    assertThat(text, allOf(\n        matchesPattern(\"^Hello.*\"),\n        containsString(\"World\"),\n        endsWith(\"message.\"),\n        not(containsString(\"error\"))\n    ));\n\n    \/\/ \u5927\u6587\u5b57\u5c0f\u6587\u5b57\u3092\u7121\u8996\u3057\u305f\u6bd4\u8f03\n    assertThat(text, equalToIgnoringCase(\"HELLO, WORLD! THIS IS A TEST MESSAGE.\"));\n\n    \/\/ \u6587\u5b57\u5217\u9577\u306e\u691c\u8a3c\n    assertThat(text.length(), allOf(\n        greaterThan(20),\n        lessThan(50)\n    ));\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-15\">\u975e\u540c\u671f\u51e6\u7406\u306e\u30c6\u30b9\u30c8\u30c6\u30af\u30cb\u30c3\u30af<\/h3>\n\n\n\n<p>\u975e\u540c\u671f\u51e6\u7406\u306e\u30c6\u30b9\u30c8\u3067\u306f\u3001\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u3084\u5b8c\u4e86\u72b6\u614b\u306e\u691c\u8a3c\u304c\u91cd\u8981\u3067\u3059\u3002<\/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\nvoid asynchronousTestingExamples() throws Exception {\n    CompletableFuture&lt;String&gt; future = CompletableFuture.supplyAsync(() -&gt; {\n        \/\/ \u975e\u540c\u671f\u51e6\u7406\n        try {\n            Thread.sleep(1000);\n            return \"Result\";\n        } catch (InterruptedException e) {\n            throw new RuntimeException(e);\n        }\n    });\n\n    \/\/ \u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u3092\u6307\u5b9a\u3057\u305f\u5f85\u6a5f\n    String result = future.get(2, TimeUnit.SECONDS);\n    assertThat(result, is(\"Result\"));\n\n    \/\/ \u975e\u540c\u671f\u51e6\u7406\u306e\u5b8c\u4e86\u72b6\u614b\u306e\u691c\u8a3c\n    assertThat(future.isDone(), is(true));\n\n    \/\/ \u4f8b\u5916\u306e\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0\n    CompletableFuture&lt;String&gt; failingFuture = CompletableFuture.supplyAsync(() -&gt; {\n        throw new RuntimeException(\"Async error\");\n    });\n\n    assertThatThrownBy(() -&gt; failingFuture.get())\n        .isInstanceOf(ExecutionException.class)\n        .hasRootCauseInstanceOf(RuntimeException.class);\n}<\/pre>\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\u3088\u308a\u5805\u7262\u3067\u4fdd\u5b88\u6027\u306e\u9ad8\u3044\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u3092\u4f5c\u6210\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-16\">assertThat\u3092\u4f7f\u3063\u305f\u5b9f\u88c5\u4f8b\u3068\u89e3\u8aac<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-17\">\u30ea\u30dd\u30b8\u30c8\u30ea\u30ec\u30a4\u30e4\u30fc\u306e\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u4f8b<\/h3>\n\n\n\n<p>\u30ea\u30dd\u30b8\u30c8\u30ea\u30ec\u30a4\u30e4\u30fc\u3067\u306f\u3001\u30c7\u30fc\u30bf\u306e\u6c38\u7d9a\u5316\u306b\u95a2\u3059\u308b\u30c6\u30b9\u30c8\u3092\u884c\u3044\u307e\u3059\u3002<\/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=\"\">@SpringBootTest\nclass UserRepositoryTest {\n    @Autowired\n    private UserRepository userRepository;\n\n    @Test\n    void findByEmailTest() {\n        \/\/ \u30c6\u30b9\u30c8\u30c7\u30fc\u30bf\u306e\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\n        User user = new User();\n        user.setEmail(\"test@example.com\");\n        user.setName(\"Test User\");\n        user.setActive(true);\n        userRepository.save(user);\n\n        \/\/ \u30c6\u30b9\u30c8\u5b9f\u884c\u3068\u691c\u8a3c\n        Optional&lt;User&gt; found = userRepository.findByEmail(\"test@example.com\");\n\n        assertThat(found, allOf(\n            is(present()),  \/\/ Optional\u304c\u5024\u3092\u6301\u3063\u3066\u3044\u308b\u304b\n            hasProperty(\"value\", allOf(  \/\/ \u4e2d\u8eab\u306e\u691c\u8a3c\n                hasProperty(\"email\", is(\"test@example.com\")),\n                hasProperty(\"name\", is(\"Test User\")),\n                hasProperty(\"active\", is(true))\n            ))\n        ));\n    }\n\n    @Test\n    void findActiveUsersTest() {\n        \/\/ \u30c6\u30b9\u30c8\u30c7\u30fc\u30bf\u306e\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\n        User activeUser1 = new User(\"active1@example.com\", \"Active 1\", true);\n        User activeUser2 = new User(\"active2@example.com\", \"Active 2\", true);\n        User inactiveUser = new User(\"inactive@example.com\", \"Inactive\", false);\n\n        userRepository.saveAll(Arrays.asList(activeUser1, activeUser2, inactiveUser));\n\n        \/\/ \u30c6\u30b9\u30c8\u5b9f\u884c\n        List&lt;User&gt; activeUsers = userRepository.findByActiveTrue();\n\n        \/\/ \u691c\u8a3c\n        assertThat(activeUsers, allOf(\n            hasSize(2),\n            everyItem(hasProperty(\"active\", is(true))),\n            containsInAnyOrder(\n                hasProperty(\"email\", is(\"active1@example.com\")),\n                hasProperty(\"email\", is(\"active2@example.com\"))\n            )\n        ));\n    }\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-18\">\u30b5\u30fc\u30d3\u30b9\u30ec\u30a4\u30e4\u30fc\u306e\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u4f8b<\/h3>\n\n\n\n<p>\u30b5\u30fc\u30d3\u30b9\u30ec\u30a4\u30e4\u30fc\u3067\u306f\u3001\u30d3\u30b8\u30cd\u30b9\u30ed\u30b8\u30c3\u30af\u306e\u30c6\u30b9\u30c8\u3092\u884c\u3044\u307e\u3059\u3002<\/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=\"\">@ExtendWith(MockitoExtension.class)\nclass UserServiceTest {\n    @Mock\n    private UserRepository userRepository;\n\n    @Mock\n    private EmailService emailService;\n\n    @InjectMocks\n    private UserService userService;\n\n    @Test\n    void registerUserTest() {\n        \/\/ \u30c6\u30b9\u30c8\u30c7\u30fc\u30bf\n        UserRegistrationDto dto = new UserRegistrationDto(\n            \"new@example.com\",\n            \"New User\",\n            \"password123\"\n        );\n\n        \/\/ \u30e2\u30c3\u30af\u306e\u8a2d\u5b9a\n        when(userRepository.findByEmail(dto.getEmail()))\n            .thenReturn(Optional.empty());\n        when(userRepository.save(any(User.class)))\n            .thenAnswer(invocation -&gt; invocation.getArgument(0));\n\n        \/\/ \u30c6\u30b9\u30c8\u5b9f\u884c\n        User registered = userService.registerUser(dto);\n\n        \/\/ \u691c\u8a3c\n        assertThat(registered, allOf(\n            hasProperty(\"email\", is(dto.getEmail())),\n            hasProperty(\"name\", is(dto.getName())),\n            hasProperty(\"active\", is(true)),\n            hasProperty(\"password\", not(dto.getPassword()))  \/\/ \u30d1\u30b9\u30ef\u30fc\u30c9\u304c\u30cf\u30c3\u30b7\u30e5\u5316\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\n        ));\n\n        \/\/ \u30e1\u30bd\u30c3\u30c9\u547c\u3073\u51fa\u3057\u306e\u691c\u8a3c\n        verify(userRepository).save(any(User.class));\n        verify(emailService).sendWelcomeEmail(registered);\n    }\n\n    @Test\n    void updateUserProfileTest() {\n        \/\/ \u30c6\u30b9\u30c8\u30c7\u30fc\u30bf\n        User existingUser = new User(\"user@example.com\", \"Old Name\", true);\n        UserProfileUpdateDto updateDto = new UserProfileUpdateDto(\n            \"New Name\",\n            \"new-password\",\n            true\n        );\n\n        \/\/ \u30e2\u30c3\u30af\u306e\u8a2d\u5b9a\n        when(userRepository.findById(1L))\n            .thenReturn(Optional.of(existingUser));\n        when(userRepository.save(any(User.class)))\n            .thenAnswer(invocation -&gt; invocation.getArgument(0));\n\n        \/\/ \u30c6\u30b9\u30c8\u5b9f\u884c\n        User updated = userService.updateProfile(1L, updateDto);\n\n        \/\/ \u691c\u8a3c\n        assertThat(updated, allOf(\n            hasProperty(\"name\", is(updateDto.getName())),\n            hasProperty(\"email\", is(existingUser.getEmail())),  \/\/ \u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u306f\u5909\u66f4\u3055\u308c\u306a\u3044\u3053\u3068\u3092\u78ba\u8a8d\n            hasProperty(\"active\", is(updateDto.isActive()))\n        ));\n    }\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-19\">\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30fc\u30ec\u30a4\u30e4\u30fc\u306e\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u4f8b<\/h3>\n\n\n\n<p>\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30fc\u30ec\u30a4\u30e4\u30fc\u3067\u306f\u3001HTTP\u30ea\u30af\u30a8\u30b9\u30c8\/\u30ec\u30b9\u30dd\u30f3\u30b9\u306e\u30c6\u30b9\u30c8\u3092\u884c\u3044\u307e\u3059\u3002<\/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=\"\">@WebMvcTest(UserController.class)\nclass UserControllerTest {\n    @Autowired\n    private MockMvc mockMvc;\n\n    @MockBean\n    private UserService userService;\n\n    @Autowired\n    private ObjectMapper objectMapper;\n\n    @Test\n    void createUserTest() throws Exception {\n        \/\/ \u30c6\u30b9\u30c8\u30c7\u30fc\u30bf\n        UserRegistrationDto dto = new UserRegistrationDto(\n            \"new@example.com\",\n            \"New User\",\n            \"password123\"\n        );\n\n        User createdUser = new User();\n        createdUser.setId(1L);\n        createdUser.setEmail(dto.getEmail());\n        createdUser.setName(dto.getName());\n        createdUser.setActive(true);\n\n        \/\/ \u30e2\u30c3\u30af\u306e\u8a2d\u5b9a\n        when(userService.registerUser(any(UserRegistrationDto.class)))\n            .thenReturn(createdUser);\n\n        \/\/ \u30c6\u30b9\u30c8\u5b9f\u884c\u3068\u691c\u8a3c\n        MvcResult result = mockMvc.perform(post(\"\/api\/users\")\n            .contentType(MediaType.APPLICATION_JSON)\n            .content(objectMapper.writeValueAsString(dto)))\n            .andExpect(status().isCreated())\n            .andExpect(jsonPath(\"$.id\", is(1)))\n            .andExpect(jsonPath(\"$.email\", is(dto.getEmail())))\n            .andExpect(jsonPath(\"$.name\", is(dto.getName())))\n            .andExpect(jsonPath(\"$.active\", is(true)))\n            .andReturn();\n\n        \/\/ \u30ec\u30b9\u30dd\u30f3\u30b9\u306e\u8a73\u7d30\u306a\u691c\u8a3c\n        String responseJson = result.getResponse().getContentAsString();\n        UserResponse response = objectMapper.readValue(responseJson, UserResponse.class);\n\n        assertThat(response, allOf(\n            hasProperty(\"id\", is(1L)),\n            hasProperty(\"email\", is(dto.getEmail())),\n            hasProperty(\"name\", is(dto.getName())),\n            hasProperty(\"active\", is(true)),\n            not(hasProperty(\"password\"))  \/\/ \u30d1\u30b9\u30ef\u30fc\u30c9\u304c\u542b\u307e\u308c\u3066\u3044\u306a\u3044\u3053\u3068\u3092\u78ba\u8a8d\n        ));\n    }\n\n    @Test\n    void getUsersTest() throws Exception {\n        \/\/ \u30c6\u30b9\u30c8\u30c7\u30fc\u30bf\n        List&lt;User&gt; users = Arrays.asList(\n            new User(\"user1@example.com\", \"User 1\", true),\n            new User(\"user2@example.com\", \"User 2\", true)\n        );\n\n        \/\/ \u30e2\u30c3\u30af\u306e\u8a2d\u5b9a\n        when(userService.getAllUsers(any(Pageable.class)))\n            .thenReturn(new PageImpl&lt;&gt;(users));\n\n        \/\/ \u30c6\u30b9\u30c8\u5b9f\u884c\u3068\u691c\u8a3c\n        mockMvc.perform(get(\"\/api\/users\")\n            .param(\"page\", \"0\")\n            .param(\"size\", \"10\"))\n            .andExpect(status().isOk())\n            .andExpect(jsonPath(\"$.content\", hasSize(2)))\n            .andExpect(jsonPath(\"$.content[0].email\", is(\"user1@example.com\")))\n            .andExpect(jsonPath(\"$.content[1].email\", is(\"user2@example.com\")))\n            .andExpect(jsonPath(\"$.totalElements\", is(2)));\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\">\u5404\u30ec\u30a4\u30e4\u30fc\u306e\u30c6\u30b9\u30c8\u30dd\u30a4\u30f3\u30c8\uff1a<\/div><\/div><div class=\"sng-box-msg__contents\">\n<ol class=\"wp-block-list\">\n<li><strong>\u30ea\u30dd\u30b8\u30c8\u30ea\u30c6\u30b9\u30c8<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u30c7\u30fc\u30bf\u306e\u6c38\u7d9a\u5316<\/li>\n\n\n\n<li>\u30af\u30a8\u30ea\u306e\u6b63\u78ba\u6027<\/li>\n\n\n\n<li>\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u7ba1\u7406<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u30b5\u30fc\u30d3\u30b9\u30c6\u30b9\u30c8<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u30d3\u30b8\u30cd\u30b9\u30ed\u30b8\u30c3\u30af\u306e\u6b63\u78ba\u6027<\/li>\n\n\n\n<li>\u5916\u90e8\u30b5\u30fc\u30d3\u30b9\u3068\u306e\u9023\u643a<\/li>\n\n\n\n<li>\u4f8b\u5916\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30fc\u30c6\u30b9\u30c8<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u30ea\u30af\u30a8\u30b9\u30c8\/\u30ec\u30b9\u30dd\u30f3\u30b9\u306e\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3<\/li>\n\n\n\n<li>HTTP\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9<\/li>\n\n\n\n<li>\u30ec\u30b9\u30dd\u30f3\u30b9\u30dc\u30c7\u30a3\u306e\u69cb\u9020<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<\/div><\/div><\/div>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u4f8b\u306f\u3001\u5b9f\u969b\u306e\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u4f7f\u7528\u3067\u304d\u308b\u5b9f\u8df5\u7684\u306a\u30c6\u30b9\u30c8\u30d1\u30bf\u30fc\u30f3\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-20\">assertThat\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3068\u30a2\u30f3\u30c1\u30d1\u30bf\u30fc\u30f3<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-21\">\u30c6\u30b9\u30c8\u306e\u8aad\u307f\u3084\u3059\u3055\u3092\u5411\u4e0a\u3055\u305b\u308bTips<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-22\">1. \u9069\u5207\u306aMatcher\u9078\u629e<\/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\u6c4e\u7528\u7684\u306aMatcher\u306e\u904e\u5270\u4f7f\u7528\nassertThat(user.getAge(), is(greaterThan(20)));\nassertThat(user.getName(), is(not(nullValue())));\n\n\/\/ \u826f\u3044\u4f8b\uff1a\u76ee\u7684\u306b\u9069\u3057\u305fMatcher\u306e\u4f7f\u7528\nassertThat(user.getAge(), greaterThan(20));\nassertThat(user.getName(), notNullValue());<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-23\">2. \u30ab\u30b9\u30bf\u30e0Matcher\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=\"\">\/\/ \u30ab\u30b9\u30bf\u30e0Matcher\u306e\u5b9a\u7fa9\npublic class UserMatchers {\n    public static Matcher&lt;User&gt; isValidUser() {\n        return allOf(\n            hasProperty(\"age\", greaterThan(0)),\n            hasProperty(\"name\", not(isEmptyOrNullString())),\n            hasProperty(\"email\", matchesPattern(\".+@.+\\\\..+\"))\n        );\n    }\n}\n\n\/\/ \u30c6\u30b9\u30c8\u3067\u306e\u4f7f\u7528\n@Test\nvoid userValidationTest() {\n    User user = new User(\"John\", 25, \"john@example.com\");\n    assertThat(user, isValidUser());\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-24\">3. \u30c6\u30b9\u30c8\u30e1\u30bd\u30c3\u30c9\u540d\u306e\u547d\u540d\u898f\u5247<\/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\u62bd\u8c61\u7684\u306a\u540d\u524d\n@Test\nvoid test1() { ... }\n\n\/\/ \u826f\u3044\u4f8b\uff1a\u30c6\u30b9\u30c8\u306e\u610f\u56f3\u304c\u660e\u78ba\u306a\u540d\u524d\n@Test\nvoid shouldReturnUserWhenValidEmailIsProvided() { ... }<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-25\">\u3088\u304f\u3042\u308b\u9593\u9055\u3044\u3068\u305d\u306e\u56de\u907f\u65b9\u6cd5<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-26\">1. \u904e\u5270\u306a\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=\"\">\/\/ \u60aa\u3044\u4f8b\uff1a\u4e00\u3064\u306e\u30c6\u30b9\u30c8\u3067\u591a\u3059\u304e\u308b\u691c\u8a3c\n@Test\nvoid userRegistrationTest() {\n    User user = userService.register(userDto);\n    assertThat(user.getId(), notNullValue());\n    assertThat(user.getName(), is(\"John\"));\n    assertThat(user.getEmail(), is(\"john@example.com\"));\n    assertThat(user.getAge(), is(25));\n    assertThat(user.getCreatedAt(), is(notNullValue()));\n    assertThat(user.getUpdatedAt(), is(notNullValue()));\n    assertThat(user.getStatus(), is(\"ACTIVE\"));\n}\n\n\/\/ \u826f\u3044\u4f8b\uff1a\u95a2\u9023\u3059\u308b\u691c\u8a3c\u3092\u30b0\u30eb\u30fc\u30d7\u5316\n@Test\nvoid userRegistrationTest() {\n    User user = userService.register(userDto);\n\n    assertThat(user, allOf(\n        hasProperty(\"id\", notNullValue()),\n        hasProperty(\"name\", is(\"John\")),\n        hasProperty(\"email\", is(\"john@example.com\")),\n        hasProperty(\"age\", is(25))\n    ));\n\n    \/\/ \u76e3\u67fb\u30d5\u30a3\u30fc\u30eb\u30c9\u306e\u691c\u8a3c\u306f\u5225\u306e\u30c6\u30b9\u30c8\u30b1\u30fc\u30b9\u306b\u5206\u96e2\n    assertAuditFields(user);\n}\n\n@Test\nvoid shouldSetCorrectAuditFieldsOnRegistration() {\n    User user = userService.register(userDto);\n    assertAuditFields(user);\n}\n\nprivate void assertAuditFields(User user) {\n    assertThat(user, allOf(\n        hasProperty(\"createdAt\", notNullValue()),\n        hasProperty(\"updatedAt\", notNullValue()),\n        hasProperty(\"status\", is(\"ACTIVE\"))\n    ));\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-27\">2. \u4e0d\u9069\u5207\u306aMatcher\u306e\u4f7f\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=\"\">\/\/ \u60aa\u3044\u4f8b\uff1a\u6570\u5024\u306e\u6bd4\u8f03\u306b\u4e0d\u9069\u5207\u306aMatcher\u3092\u4f7f\u7528\nassertThat(calculation.getTotal(), is(100.0));  \/\/ \u6d6e\u52d5\u5c0f\u6570\u70b9\u306e\u53b3\u5bc6\u306a\u6bd4\u8f03\n\n\/\/ \u826f\u3044\u4f8b\uff1a\u9069\u5207\u306aMatcher\u306e\u4f7f\u7528\nassertThat(calculation.getTotal(), closeTo(100.0, 0.001));  \/\/ \u8a31\u5bb9\u8aa4\u5dee\u3092\u8003\u616e<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-28\">3. \u30c6\u30b9\u30c8\u30c7\u30fc\u30bf\u306e\u91cd\u8907<\/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\u30c6\u30b9\u30c8\u30c7\u30fc\u30bf\u306e\u91cd\u8907\n@Test\nvoid test1() {\n    User user = new User(\"John\", 25, \"john@example.com\");\n    \/\/ \u30c6\u30b9\u30c8\u5b9f\u884c\n}\n\n@Test\nvoid test2() {\n    User user = new User(\"John\", 25, \"john@example.com\");\n    \/\/ \u30c6\u30b9\u30c8\u5b9f\u884c\n}\n\n\/\/ \u826f\u3044\u4f8b\uff1a\u30c6\u30b9\u30c8\u30c7\u30fc\u30bf\u306e\u96c6\u4e2d\u7ba1\u7406\nclass UserTestData {\n    static final User VALID_USER = new User(\"John\", 25, \"john@example.com\");\n    static User createUserWithAge(int age) {\n        return new User(\"John\", age, \"john@example.com\");\n    }\n}\n\n@Test\nvoid test1() {\n    User user = UserTestData.VALID_USER;\n    \/\/ \u30c6\u30b9\u30c8\u5b9f\u884c\n}\n\n@Test\nvoid test2() {\n    User user = UserTestData.createUserWithAge(30);\n    \/\/ \u30c6\u30b9\u30c8\u5b9f\u884c\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-29\">\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u306e\u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0\u624b\u6cd5<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-30\">1. \u30c6\u30b9\u30c8\u30d8\u30eb\u30d1\u30fc\u30e1\u30bd\u30c3\u30c9\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=\"\">\/\/ \u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0\u524d\n@Test\nvoid orderProcessingTest() {\n    Order order = new Order();\n    order.setItems(Arrays.asList(\n        new OrderItem(\"item1\", 100),\n        new OrderItem(\"item2\", 200)\n    ));\n    order.setStatus(\"NEW\");\n\n    Order processedOrder = orderService.process(order);\n\n    assertThat(processedOrder.getStatus(), is(\"PROCESSED\"));\n    assertThat(processedOrder.getTotalAmount(), is(300));\n    assertThat(processedOrder.getItems(), hasSize(2));\n}\n\n\/\/ \u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0\u5f8c\n@Test\nvoid orderProcessingTest() {\n    Order order = createOrderWithItems(\n        createOrderItem(\"item1\", 100),\n        createOrderItem(\"item2\", 200)\n    );\n\n    Order processedOrder = orderService.process(order);\n\n    assertOrderIsProcessedCorrectly(processedOrder, 300, 2);\n}\n\nprivate Order createOrderWithItems(OrderItem... items) {\n    Order order = new Order();\n    order.setItems(Arrays.asList(items));\n    order.setStatus(\"NEW\");\n    return order;\n}\n\nprivate OrderItem createOrderItem(String name, int price) {\n    return new OrderItem(name, price);\n}\n\nprivate void assertOrderIsProcessedCorrectly(Order order, int expectedTotal, int expectedItemCount) {\n    assertThat(order, allOf(\n        hasProperty(\"status\", is(\"PROCESSED\")),\n        hasProperty(\"totalAmount\", is(expectedTotal)),\n        hasProperty(\"items\", hasSize(expectedItemCount))\n    ));\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-31\">2. \u30c6\u30b9\u30c8\u30d5\u30a3\u30af\u30b9\u30c1\u30e3\u30fc\u306e\u6539\u5584<\/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=\"\">\/\/ \u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0\u524d\nclass UserServiceTest {\n    private UserService userService;\n    private UserRepository userRepository;\n    private EmailService emailService;\n\n    @BeforeEach\n    void setUp() {\n        userRepository = mock(UserRepository.class);\n        emailService = mock(EmailService.class);\n        userService = new UserService(userRepository, emailService);\n    }\n}\n\n\/\/ \u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0\u5f8c\n@ExtendWith(MockitoExtension.class)\nclass UserServiceTest {\n    @Mock\n    private UserRepository userRepository;\n\n    @Mock\n    private EmailService emailService;\n\n    @InjectMocks\n    private UserService userService;\n\n    \/\/ \u30c6\u30b9\u30c8\u30d5\u30a3\u30af\u30b9\u30c1\u30e3\u30fc\u306e\u5171\u901a\u8a2d\u5b9a\n    @BeforeEach\n    void setUp() {\n        \/\/ \u5171\u901a\u306e\u30e2\u30c3\u30af\u8a2d\u5b9a\u306e\u307f\u3092\u8a18\u8ff0\n        when(userRepository.findByEmail(anyString()))\n            .thenReturn(Optional.empty());\n    }\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-32\">3. \u30c6\u30b9\u30c8\u30b1\u30fc\u30b9\u306e\u69cb\u9020\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=\"\">\/\/ \u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0\u524d\nclass UserServiceTest {\n    @Test\n    void test1() { ... }\n    @Test\n    void test2() { ... }\n    @Test\n    void test3() { ... }\n}\n\n\/\/ \u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0\u5f8c\nclass UserServiceTest {\n    @Nested\n    class WhenCreatingNewUser {\n        @Test\n        void shouldCreateUserSuccessfully() { ... }\n\n        @Test\n        void shouldThrowExceptionForDuplicateEmail() { ... }\n    }\n\n    @Nested\n    class WhenUpdatingUser {\n        @Test\n        void shouldUpdateUserDetailsSuccessfully() { ... }\n\n        @Test\n        void shouldThrowExceptionForNonExistentUser() { ... }\n    }\n}<\/pre>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3068\u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0\u624b\u6cd5\u3092\u9069\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u4fdd\u5b88\u6027\u304c\u9ad8\u304f\u3001\u7406\u89e3\u3057\u3084\u3059\u3044\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u3092\u4f5c\u6210\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-33\">\u307e\u3068\u3081\uff1aassertThat\u3067\u5b9f\u73fe\u3059\u308b\u4fdd\u5b88\u6027\u306e\u9ad8\u3044\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-34\">\u672c\u8a18\u4e8b\u3067\u5b66\u3093\u3060\u3053\u3068<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>assertThat\u306e\u57fa\u672c\u7684\u306a\u7279\u5fb4<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u5f93\u6765\u306eassert\u306b\u6bd4\u3079\u3066\u9ad8\u3044\u53ef\u8aad\u6027<\/li>\n\n\n\n<li>\u8a73\u7d30\u306a\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8<\/li>\n\n\n\n<li>\u67d4\u8edf\u306a\u6761\u4ef6\u6307\u5b9a\u304c\u53ef\u80fd<\/li>\n\n\n\n<li>Matcher\u3092\u6d3b\u7528\u3057\u305f\u76f4\u611f\u7684\u306a\u8a18\u8ff0<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u5b9f\u8df5\u7684\u306a\u6d3b\u7528\u306e\u30dd\u30a4\u30f3\u30c8<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3001\u4f8b\u5916\u306a\u3069\u69d8\u3005\u306a\u30b1\u30fc\u30b9\u306b\u5bfe\u5fdc<\/li>\n\n\n\n<li>\u30ab\u30b9\u30bf\u30e0Matcher\u306b\u3088\u308b\u72ec\u81ea\u306e\u691c\u8a3c\u30ed\u30b8\u30c3\u30af\u4f5c\u6210<\/li>\n\n\n\n<li>\u8907\u6570\u6761\u4ef6\u306e\u7d44\u307f\u5408\u308f\u305b\u306b\u3088\u308b\u67d4\u8edf\u306a\u30c6\u30b9\u30c8<\/li>\n\n\n\n<li>\u5404\u30ec\u30a4\u30e4\u30fc\u306b\u9069\u3057\u305f\u30c6\u30b9\u30c8\u306e\u66f8\u304d\u65b9<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u4fdd\u5b88\u6027\u3092\u9ad8\u3081\u308b\u305f\u3081\u306e\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u9069\u5207\u306aMatcher\u306e\u9078\u629e<\/li>\n\n\n\n<li>\u30c6\u30b9\u30c8\u30d8\u30eb\u30d1\u30fc\u30e1\u30bd\u30c3\u30c9\u306e\u6d3b\u7528<\/li>\n\n\n\n<li>\u30c6\u30b9\u30c8\u30b1\u30fc\u30b9\u306e\u69cb\u9020\u5316<\/li>\n\n\n\n<li>\u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0\u624b\u6cd5\u306e\u9069\u7528<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-35\">\u5b9f\u8df5\u306e\u305f\u3081\u306eNext Steps<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u65e2\u5b58\u306e\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u306e\u898b\u76f4\u3057<\/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=\"\">   \/\/ \u5f93\u6765\u306eassert\u3092assertThat\u306b\u7f6e\u304d\u63db\u3048\u308b\n   \/\/ Before\n   assertEquals(expected, actual);\n   assertTrue(condition);\n\n   \/\/ After\n   assertThat(actual, is(expected));\n   assertThat(condition, is(true));<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30ab\u30b9\u30bf\u30e0Matcher\u306e\u5c0e\u5165<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u56fa\u6709\u306e\u691c\u8a3c\u30ed\u30b8\u30c3\u30af\u3092\u62bd\u51fa<\/li>\n\n\n\n<li>\u518d\u5229\u7528\u53ef\u80fd\u306aMatcher\u306e\u4f5c\u6210<\/li>\n\n\n\n<li>\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u306e\u5171\u901a\u5316<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u306e\u6574\u7406<\/strong>\n<ul class=\"wp-block-list\">\n<li><code>@Nested<\/code>\u3092\u4f7f\u7528\u3057\u305f\u30c6\u30b9\u30c8\u306e\u69cb\u9020\u5316<\/li>\n\n\n\n<li>\u30d8\u30eb\u30d1\u30fc\u30e1\u30bd\u30c3\u30c9\u306e\u4f5c\u6210<\/li>\n\n\n\n<li>\u30c6\u30b9\u30c8\u30c7\u30fc\u30bf\u306e\u96c6\u4e2d\u7ba1\u7406<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-36\">\u53c2\u8003\u30ea\u30bd\u30fc\u30b9<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u516c\u5f0f\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8<\/strong>\n<ul class=\"wp-block-list\">\n<li>JUnit 5\u30e6\u30fc\u30b6\u30fc\u30ac\u30a4\u30c9<\/li>\n\n\n\n<li>Hamcrest\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u95a2\u9023\u30c4\u30fc\u30eb<\/strong>\n<ul class=\"wp-block-list\">\n<li>AssertJ\uff08\u4ee3\u66ff\u7684\u306a\u30a2\u30b5\u30fc\u30b7\u30e7\u30f3\u30e9\u30a4\u30d6\u30e9\u30ea\uff09<\/li>\n\n\n\n<li>Mockito\uff08\u30e2\u30c3\u30af\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\uff09<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u63a8\u5968\u66f8\u7c4d<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u300cEffective Unit Testing\u300d<\/li>\n\n\n\n<li>\u300cxUnit Test Patterns\u300d<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<p>assertThat\u3092\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u306e\u54c1\u8cea\u3068\u4fdd\u5b88\u6027\u3092\u5927\u304d\u304f\u5411\u4e0a\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u672c\u8a18\u4e8b\u3067\u7d39\u4ecb\u3057\u305f\u624b\u6cd5\u3092\u5b9f\u8df5\u3057\u3001\u3088\u308a\u826f\u3044\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u3092\u76ee\u6307\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<p>\u6b21\u306e\u30b9\u30c6\u30c3\u30d7\u3068\u3057\u3066\u3001\u30c1\u30fc\u30e0\u5185\u3067\u30b3\u30fc\u30c9\u30ec\u30d3\u30e5\u30fc\u3092\u901a\u3058\u3066\u3053\u308c\u3089\u306e\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3092\u5171\u6709\u3057\u3001\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u5168\u4f53\u306e\u30c6\u30b9\u30c8\u54c1\u8cea\u5411\u4e0a\u306b\u3064\u306a\u3052\u308b\u3053\u3068\u3092\u304a\u52e7\u3081\u3057\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Warning: Undefined array key &#8220;is_admin&#8221; in \/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/ &#8230; <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[],"class_list":{"0":"post-602","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-java","7":"nothumb"},"_links":{"self":[{"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts\/602","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=602"}],"version-history":[{"count":2,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts\/602\/revisions"}],"predecessor-version":[{"id":604,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts\/602\/revisions\/604"}],"wp:attachment":[{"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=602"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=602"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=602"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}