{"id":639,"date":"2025-03-24T08:53:12","date_gmt":"2025-03-23T23:53:12","guid":{"rendered":"https:\/\/dexall.co.jp\/articles\/?p=639"},"modified":"2025-03-24T08:53:12","modified_gmt":"2025-03-23T23:53:12","slug":"%e3%80%8emockito-spy%e3%81%ae%e5%ae%9f%e8%b7%b5%e3%82%ac%e3%82%a4%e3%83%89%ef%bc%9a5%e3%81%a4%e3%81%ae%e4%bd%bf%e7%94%a8%e4%be%8b%e3%81%a84%e3%81%a4%e3%81%ae%e6%b3%a8%e6%84%8f%e7%82%b9%e3%81%8b","status":"publish","type":"post","link":"https:\/\/dexall.co.jp\/articles\/?p=639","title":{"rendered":"\u300eMockito Spy\u306e\u5b9f\u8df5\u30ac\u30a4\u30c9\uff1a5\u3064\u306e\u4f7f\u7528\u4f8b\u30684\u3064\u306e\u6ce8\u610f\u70b9\u304b\u3089\u5b66\u3076\u52b9\u679c\u7684\u306a\u30c6\u30b9\u30c8\u8a2d\u8a08\u300f"},"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\">    <span><\/span>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-0\">Mockito Spy\u3068\u306f\uff1a\u30e2\u30c3\u30af\u3068\u306e\u9055\u3044\u3092\u7406\u89e3\u3059\u308b<\/a>      <\/li>      <li>        <a href=\"#i-3\">Mockito Spy\u306e\u57fa\u672c\u7684\u306a\u4f7f\u3044\u65b9\u3068\u5b9f\u88c5\u624b\u9806<\/a>      <\/li>      <li>        <a href=\"#i-7\">\u5b9f\u8df5\u7684\u306aMockito Spy\u6d3b\u7528\u4f8b5\u9078<\/a>      <\/li>      <li>        <a href=\"#i-13\">Mockito Spy\u4f7f\u7528\u6642\u306e4\u3064\u306e\u6ce8\u610f\u70b9\u3068\u5bfe\u7b56<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-23\">Mockito Spy\u3092\u4f7f\u7528\u3057\u305f\u30c6\u30b9\u30c8\u8a2d\u8a08\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/a>      <\/li>    <\/ul>  <\/li>  <li class=\"last\">    <a href=\"#i-34\">Mockito Spy\u8a18\u4e8b \u6700\u7d42\u5206\u6790\u30ec\u30dd\u30fc\u30c8<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-35\">1. SEO\u8a55\u4fa1<\/a>      <\/li>      <li>        <a href=\"#i-40\">2. \u8aad\u8005\u3078\u306e\u30e1\u30ea\u30c3\u30c8\u5206\u6790<\/a>      <\/li>      <li>        <a href=\"#i-46\">3. \u6539\u5584\u63d0\u6848<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-49\">4. \u7dcf\u5408\u8a55\u4fa1<\/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 Spy\u3068\u306f\uff1a\u30e2\u30c3\u30af\u3068\u306e\u9055\u3044\u3092\u7406\u89e3\u3059\u308b<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-1\">spy\u306f\u30e2\u30c3\u30af\u3068\u4f55\u304c\u9055\u3046\u306e\u304b\uff1f\u5b9f\u969b\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u76e3\u8996\u3059\u308b\u4ed5\u7d44\u307f<\/h3>\n\n\n\n<p>Mockito Spy\u306f\u3001\u5b9f\u969b\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u30e9\u30c3\u30d7\u3057\u3066\u4e00\u90e8\u306e\u30e1\u30bd\u30c3\u30c9\u306e\u6319\u52d5\u3060\u3051\u3092\u5909\u66f4\u3067\u304d\u308b\u5f37\u529b\u306a\u30c6\u30b9\u30c8\u30c4\u30fc\u30eb\u3067\u3059\u3002\u30e2\u30c3\u30af\u3068spy\u306e\u4e3b\u306a\u9055\u3044\u3092\u4ee5\u4e0b\u306e\u8868\u3067\u6bd4\u8f03\u3057\u3066\u307f\u307e\u3057\u3087\u3046\uff1a<\/p>\n\n\n<div id=\"id-806fc2d0-4211-468d-b15b-cabb7cd480fa\">\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u7279\u5fb4<\/th><th>Mock<\/th><th>Spy<\/th><\/tr><\/thead><tbody><tr><td>\u4f5c\u6210\u5143<\/td><td>\u30af\u30e9\u30b9\u307e\u305f\u306f\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u304b\u3089\u65b0\u898f\u4f5c\u6210<\/td><td>\u65e2\u5b58\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u30e9\u30c3\u30d7<\/td><\/tr><tr><td>\u30c7\u30d5\u30a9\u30eb\u30c8\u306e\u6319\u52d5<\/td><td>\u30e1\u30bd\u30c3\u30c9\u306f\u4f55\u3082\u3057\u306a\u3044\uff08null\/0\u3092\u8fd4\u3059\uff09<\/td><td>\u5b9f\u969b\u306e\u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3073\u51fa\u3059<\/td><\/tr><tr><td>\u30b9\u30bf\u30d6\u5316\u3057\u3066\u3044\u306a\u3044\u30e1\u30bd\u30c3\u30c9<\/td><td>\u30c7\u30d5\u30a9\u30eb\u30c8\u5024\u3092\u8fd4\u3059<\/td><td>\u5b9f\u969b\u306e\u5b9f\u88c5\u3092\u5b9f\u884c\u3059\u308b<\/td><\/tr><tr><td>\u4f7f\u7528\u76ee\u7684<\/td><td>\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u5168\u4f53\u306e\u632f\u308b\u821e\u3044\u3092\u5236\u5fa1<\/td><td>\u7279\u5b9a\u306e\u30e1\u30bd\u30c3\u30c9\u306e\u307f\u632f\u308b\u821e\u3044\u3092\u5909\u66f4<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n<p>\u4ee5\u4e0b\u306f\u3001\u30e2\u30c3\u30af\u3068spy\u306e\u57fa\u672c\u7684\u306a\u4f7f\u7528\u4f8b\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=\"\">\/\/ Mock\u306e\u5834\u5408\nList&lt;String&gt; mockList = mock(ArrayList.class);\nwhen(mockList.size()).thenReturn(5);  \/\/ \u30b5\u30a4\u30ba\u30925\u306b\u8a2d\u5b9a\nmockList.add(\"test\");  \/\/ \u5b9f\u969b\u306b\u306f\u8ffd\u52a0\u3055\u308c\u306a\u3044\nassertEquals(5, mockList.size());  \/\/ =&gt; true\n\n\/\/ Spy\u306e\u5834\u5408\nList&lt;String&gt; realList = new ArrayList&lt;&gt;();\nList&lt;String&gt; spyList = spy(realList);\nspyList.add(\"test\");  \/\/ \u5b9f\u969b\u306b\u30ea\u30b9\u30c8\u306b\u8ffd\u52a0\u3055\u308c\u308b\nassertEquals(1, spyList.size());  \/\/ =&gt; true\nwhen(spyList.size()).thenReturn(5);  \/\/ \u7279\u5b9a\u306e\u30e1\u30bd\u30c3\u30c9\u3060\u3051\u632f\u308b\u821e\u3044\u3092\u5909\u66f4\nassertEquals(5, spyList.size());  \/\/ =&gt; true<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-2\">spy\u304c\u6700\u9069\u306a\u5834\u9762\u3068\u907f\u3051\u308b\u3079\u304d\u5834\u9762\u306e\u5224\u65ad\u57fa\u6e96<\/h3>\n\n\n\n<p class=\"is-style-sango-paragraph-idea-alt\"><strong>spy\u304c\u6700\u9069\u306a\u5834\u9762<\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u90e8\u5206\u7684\u306a\u30e2\u30c3\u30af\u5316\u304c\u5fc5\u8981\u306a\u5834\u5408<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u8907\u96d1\u306a\u30d3\u30b8\u30cd\u30b9\u30ed\u30b8\u30c3\u30af\u306e\u4e00\u90e8\u3060\u3051\u3092\u30b9\u30bf\u30d6\u5316\u3057\u305f\u3044<\/li>\n\n\n\n<li>\u5b9f\u969b\u306e\u5b9f\u88c5\u3092\u6d3b\u304b\u3057\u306a\u304c\u3089\u7279\u5b9a\u306e\u30e1\u30bd\u30c3\u30c9\u3060\u3051\u76e3\u8996\u3057\u305f\u3044<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u30ec\u30ac\u30b7\u30fc\u30b3\u30fc\u30c9\u306e\u30c6\u30b9\u30c8<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u65e2\u5b58\u306e\u5b9f\u88c5\u3092\u6d3b\u304b\u3057\u306a\u304c\u3089\u30c6\u30b9\u30c8\u3092\u66f8\u304d\u305f\u3044<\/li>\n\n\n\n<li>\u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0\u4e2d\u306e\u4e00\u6642\u7684\u306a\u5bfe\u5fdc\u3068\u3057\u3066\u4f7f\u7528<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u5916\u90e8\u9023\u643a\u306e\u4e00\u90e8\u3060\u3051\u3092\u5236\u5fa1\u3057\u305f\u3044\u5834\u5408<\/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=\"\">   \/\/ \u5916\u90e8API\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306e\u4e00\u90e8\u30e1\u30bd\u30c3\u30c9\u3060\u3051\u3092\u30e2\u30c3\u30af\u5316\u3059\u308b\u4f8b\n   ExternalApiClient realClient = new ExternalApiClient();\n   ExternalApiClient spyClient = spy(realClient);\n   when(spyClient.sendRequest()).thenReturn(mockResponse);\n   \/\/ \u4ed6\u306e\u30e1\u30bd\u30c3\u30c9\u306f\u5b9f\u969b\u306e\u5b9f\u88c5\u3092\u4f7f\u7528<\/pre>\n\n\n\n<p class=\"is-style-sango-paragraph-exclamation-alt\"><strong>spy\u3092\u907f\u3051\u308b\u3079\u304d\u5834\u9762<\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u65b0\u898f\u958b\u767a\u306e\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u65b0\u3057\u304f\u66f8\u304f\u30b3\u30fc\u30c9\u3067\u306f\u3001\u4f9d\u5b58\u95a2\u4fc2\u3092\u9069\u5207\u306b\u8a2d\u8a08\u3057\u3066\u30e2\u30c3\u30af\u3092\u4f7f\u7528\u3059\u3079\u304d<\/li>\n\n\n\n<li>spy\u306e\u4f7f\u7528\u306f\u6280\u8853\u7684\u8ca0\u50b5\u306b\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u30af\u30ea\u30c6\u30a3\u30ab\u30eb\u306a\u30c6\u30b9\u30c8<\/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=\"\">   \/\/ spy\u306f\u30d7\u30ed\u30ad\u30b7\u3092\u4f5c\u6210\u3059\u308b\u305f\u3081\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306b\u5f71\u97ff\u304c\u3042\u308b\n   for (int i = 0; i &lt; 10000; i++) {\n       List&lt;String&gt; spyList = spy(new ArrayList&lt;&gt;());  \/\/ \u907f\u3051\u308b\u3079\u304d\n       spyList.add(\"test\");\n   }<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u72b6\u614b\u306b\u4f9d\u5b58\u3059\u308b\u30c6\u30b9\u30c8<\/strong>\n<ul class=\"wp-block-list\">\n<li>spy\u306f\u5b9f\u969b\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f7f\u7528\u3059\u308b\u305f\u3081\u3001\u30c6\u30b9\u30c8\u9593\u3067\u72b6\u614b\u304c\u5171\u6709\u3055\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b<\/li>\n\n\n\n<li>\u3053\u306e\u3088\u3046\u306a\u5834\u5408\u306f\u3001\u7d14\u7c8b\u306a\u30e2\u30c3\u30af\u3092\u4f7f\u7528\u3059\u308b\u65b9\u304c\u5b89\u5168<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<p class=\"is-style-sango-paragraph-memo-alt\"><strong>\u5224\u65ad\u306e\u305f\u3081\u306e\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>[ ] \u65e2\u5b58\u30b3\u30fc\u30c9\u306e\u30c6\u30b9\u30c8\u304b\u65b0\u898f\u958b\u767a\u304b\uff1f<\/li>\n\n\n\n<li>[ ] \u5b9f\u969b\u306e\u5b9f\u88c5\u3092\u3069\u306e\u7a0b\u5ea6\u4fdd\u6301\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u304b\uff1f<\/li>\n\n\n\n<li>[ ] \u30c6\u30b9\u30c8\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306f\u91cd\u8981\u304b\uff1f<\/li>\n\n\n\n<li>[ ] \u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u72b6\u614b\u7ba1\u7406\u306f\u8907\u96d1\u304b\uff1f<\/li>\n\n\n\n<li>[ ] \u90e8\u5206\u7684\u306a\u30e2\u30c3\u30af\u5316\u3067\u5341\u5206\u304b\uff1f<\/li>\n<\/ul>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u5224\u65ad\u57fa\u6e96\u3092\u9069\u5207\u306b\u9069\u7528\u3059\u308b\u3053\u3068\u3067\u3001spy\u306e\u4f7f\u7528\u304c\u672c\u5f53\u306b\u5fc5\u8981\u306a\u5834\u9762\u3092\u898b\u6975\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u7279\u306b\u3001\u30ec\u30ac\u30b7\u30fc\u30b3\u30fc\u30c9\u306e\u30c6\u30b9\u30c8\u6539\u5584\u3084\u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0\u6642\u306e\u4e00\u6642\u7684\u306a\u5bfe\u5fdc\u3068\u3057\u3066\u4f7f\u7528\u3059\u308b\u5834\u5408\u306f\u3001spy\u304c\u975e\u5e38\u306b\u6709\u7528\u306a\u30c4\u30fc\u30eb\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-3\">Mockito Spy\u306e\u57fa\u672c\u7684\u306a\u4f7f\u3044\u65b9\u3068\u5b9f\u88c5\u624b\u9806<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-4\">@Spy\u30a2\u30ce\u30c6\u30fc\u30b7\u30e7\u30f3\u3092\u4f7f\u7528\u3057\u305f\u5b9f\u88c5\u65b9\u6cd5<\/h3>\n\n\n\n<p>@Spy\u30a2\u30ce\u30c6\u30fc\u30b7\u30e7\u30f3\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u30c6\u30b9\u30c8\u30af\u30e9\u30b9\u5185\u3067\u30b9\u30d1\u30a4\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u7c21\u5358\u306b\u4f5c\u6210\u3067\u304d\u307e\u3059\u3002\u4ee5\u4e0b\u306b\u57fa\u672c\u7684\u306a\u5b9f\u88c5\u4f8b\u3092\u793a\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@ExtendWith(MockitoExtension.class)\nclass UserServiceTest {\n    \/\/ \u30b9\u30d1\u30a4\u5bfe\u8c61\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u81ea\u52d5\u7684\u306b\u4f5c\u6210\n    @Spy\n    private ArrayList&lt;String&gt; spyList;\n\n    \/\/ \u65e2\u5b58\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u30b9\u30d1\u30a4\u5316\n    @Spy\n    private UserValidator userValidator = new UserValidator();\n\n    @Test\n    void testWithSpyAnnotation() {\n        \/\/ spyList\u306f\u5b9f\u969b\u306eArrayList\u3068\u3057\u3066\u52d5\u4f5c\n        spyList.add(\"test\");\n        assertEquals(1, spyList.size());\n\n        \/\/ \u7279\u5b9a\u306e\u30e1\u30bd\u30c3\u30c9\u3060\u3051\u632f\u308b\u821e\u3044\u3092\u5909\u66f4\n        doReturn(100).when(spyList).size();\n        assertEquals(100, spyList.size());\n    }\n}<\/pre>\n\n\n\n<p class=\"is-style-sango-paragraph-memo-alt\"><strong>\u6ce8\u610f\u70b9\uff1a<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>@Spy\u30a2\u30ce\u30c6\u30fc\u30b7\u30e7\u30f3\u3092\u4f7f\u7528\u3059\u308b\u5834\u5408\u306f\u3001@ExtendWith(MockitoExtension.class)\u304c\u5fc5\u8981<\/li>\n\n\n\n<li>null\u3067\u306a\u3044\u521d\u671f\u5024\u3092\u8a2d\u5b9a\u3059\u308b\u5834\u5408\u306f\u3001\u30d5\u30a3\u30fc\u30eb\u30c9\u521d\u671f\u5316\u3092\u4f7f\u7528<\/li>\n\n\n\n<li>\u30c6\u30b9\u30c8\u306e\u53ef\u8aad\u6027\u3092\u9ad8\u3081\u308b\u305f\u3081\u3001\u30b9\u30d1\u30a4\u3067\u3042\u308b\u3053\u3068\u3092\u660e\u793a\u7684\u306b\u793a\u3059\u547d\u540d\u3092\u5fc3\u304c\u3051\u308b<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-5\">spy()\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u305f\u5b9f\u88c5\u65b9\u6cd5<\/h3>\n\n\n\n<p>spy()\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u3088\u308a\u67d4\u8edf\u306b\u30b9\u30d1\u30a4\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\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=\"\">class FileServiceTest {\n    @Test\n    void testWithSpyMethod() {\n        \/\/ \u65e2\u5b58\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u30b9\u30d1\u30a4\u5316\n        FileService realService = new FileService();\n        FileService spyService = spy(realService);\n\n        \/\/ \u4e00\u90e8\u306e\u30e1\u30bd\u30c3\u30c9\u3060\u3051\u632f\u308b\u821e\u3044\u3092\u5909\u66f4\n        doReturn(true).when(spyService).exists(\"test.txt\");\n\n        \/\/ \u4ed6\u306e\u30e1\u30bd\u30c3\u30c9\u306f\u5b9f\u969b\u306e\u5b9f\u88c5\u3092\u4f7f\u7528\n        spyService.createFile(\"new.txt\");\n    }\n}<\/pre>\n\n\n\n<p class=\"is-style-sango-paragraph-idea-alt\"><strong>spy()\u30e1\u30bd\u30c3\u30c9\u306e\u4e3b\u306a\u4f7f\u7528\u30d1\u30bf\u30fc\u30f3\uff1a<\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u65e2\u5b58\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u30e9\u30c3\u30d7<\/li>\n\n\n\n<li>\u65b0\u898f\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u306e\u4f5c\u6210\u3068\u30b9\u30d1\u30a4\u5316<\/li>\n\n\n\n<li>\u62bd\u8c61\u30af\u30e9\u30b9\u306e\u30b9\u30d1\u30a4\u5316<\/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=\"\">\/\/ \u30d1\u30bf\u30fc\u30f31: \u65e2\u5b58\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u30e9\u30c3\u30d7\nList&lt;String&gt; realList = new ArrayList&lt;&gt;();\nList&lt;String&gt; spyList = spy(realList);\n\n\/\/ \u30d1\u30bf\u30fc\u30f32: \u65b0\u898f\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u306e\u4f5c\u6210\u3068\u30b9\u30d1\u30a4\u5316\nList&lt;String&gt; spyList = spy(new ArrayList&lt;&gt;());\n\n\/\/ \u30d1\u30bf\u30fc\u30f33: \u62bd\u8c61\u30af\u30e9\u30b9\u306e\u30b9\u30d1\u30a4\u5316\nAbstractClass spyAbstract = spy(AbstractClass.class);<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-6\">verify()\u3092\u4f7f\u7528\u3057\u305f\u30e1\u30bd\u30c3\u30c9\u547c\u3073\u51fa\u3057\u306e\u691c\u8a3c\u65b9\u6cd5<\/h3>\n\n\n\n<p>\u30b9\u30d1\u30a4\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3067\u306f\u3001\u30e1\u30bd\u30c3\u30c9\u306e\u547c\u3073\u51fa\u3057\u3092\u8a73\u7d30\u306b\u691c\u8a3c\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\nvoid testMethodCallVerification() {\n    UserService spyService = spy(new UserService());\n    User testUser = new User(\"test_user\");\n\n    \/\/ \u30e1\u30bd\u30c3\u30c9\u3092\u5b9f\u884c\n    spyService.updateUser(testUser);\n\n    \/\/ \u57fa\u672c\u7684\u306a\u691c\u8a3c\n    verify(spyService).updateUser(testUser);\n\n    \/\/ \u547c\u3073\u51fa\u3057\u56de\u6570\u306e\u691c\u8a3c\n    verify(spyService, times(1)).updateUser(testUser);\n\n    \/\/ \u547c\u3073\u51fa\u3057\u9806\u5e8f\u306e\u691c\u8a3c\n    InOrder inOrder = inOrder(spyService);\n    inOrder.verify(spyService).validateUser(testUser);\n    inOrder.verify(spyService).updateUser(testUser);\n\n    \/\/ \u7279\u5b9a\u306e\u6642\u9593\u5185\u306e\u547c\u3073\u51fa\u3057\u691c\u8a3c\n    verify(spyService, timeout(1000)).updateUser(testUser);\n}<\/pre>\n\n\n\n<div class=\"wp-block-sgb-block-simple sgb-box-simple sgb-box-simple--title-normal sgb-box-simple--with-border\"><div style=\"background-color:var(--wp--preset--color--sango-main);color:#FFF\" class=\"sgb-box-simple__title\">\u691c\u8a3c\u30aa\u30d7\u30b7\u30e7\u30f3\u306e\u4e00\u89a7\uff1a<\/div><div class=\"sgb-box-simple__body\" style=\"border-color:var(--wp--preset--color--sango-main);background-color:#FFF\"><div id=\"id-4ea55ea8-e40a-46a2-bb4d-3b1d2807ee7b\">\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u30aa\u30d7\u30b7\u30e7\u30f3<\/th><th>\u8aac\u660e<\/th><th>\u4f7f\u7528\u4f8b<\/th><\/tr><\/thead><tbody><tr><td>times(n)<\/td><td>n\u56de\u306e\u547c\u3073\u51fa\u3057\u3092\u691c\u8a3c<\/td><td>verify(spy, times(2)).method()<\/td><\/tr><tr><td>never()<\/td><td>\u547c\u3073\u51fa\u3055\u308c\u3066\u3044\u306a\u3044\u3053\u3068\u3092\u691c\u8a3c<\/td><td>verify(spy, never()).method()<\/td><\/tr><tr><td>atLeastOnce()<\/td><td>\u6700\u4f4e1\u56de\u306e\u547c\u3073\u51fa\u3057\u3092\u691c\u8a3c<\/td><td>verify(spy, atLeastOnce()).method()<\/td><\/tr><tr><td>atLeast(n)<\/td><td>\u6700\u4f4en\u56de\u306e\u547c\u3073\u51fa\u3057\u3092\u691c\u8a3c<\/td><td>verify(spy, atLeast(2)).method()<\/td><\/tr><tr><td>atMost(n)<\/td><td>\u6700\u5927n\u56de\u306e\u547c\u3073\u51fa\u3057\u3092\u691c\u8a3c<\/td><td>verify(spy, atMost(3)).method()<\/td><\/tr><tr><td>timeout(n)<\/td><td>n \u30df\u30ea\u79d2\u4ee5\u5185\u306e\u547c\u3073\u51fa\u3057\u3092\u691c\u8a3c<\/td><td>verify(spy, timeout(100)).method()<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div><\/div><\/div>\n\n\n\n<p class=\"is-style-sango-paragraph-idea-alt\"><strong>\u5b9f\u88c5\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\uff1a<\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u30b9\u30d1\u30a4\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u751f\u6210\u306f\u5404\u30c6\u30b9\u30c8\u30e1\u30bd\u30c3\u30c9\u3067\u884c\u3046<\/li>\n\n\n\n<li>\u691c\u8a3c\u306f\u5fc5\u8981\u6700\u5c0f\u9650\u306b\u3068\u3069\u3081\u308b<\/li>\n\n\n\n<li>\u8907\u96d1\u306a\u691c\u8a3c\u30ed\u30b8\u30c3\u30af\u306f\u5225\u30e1\u30bd\u30c3\u30c9\u306b\u62bd\u51fa\u3059\u308b<\/li>\n\n\n\n<li>\u30c6\u30b9\u30c8\u306e\u610f\u56f3\u304c\u660e\u78ba\u306b\u306a\u308b\u547d\u540d\u3092\u5fc3\u304c\u3051\u308b<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-7\">\u5b9f\u8df5\u7684\u306aMockito Spy\u6d3b\u7528\u4f8b5\u9078<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-8\">\u90e8\u5206\u7684\u306a\u30e2\u30c3\u30af\u5316\u304c\u5fc5\u8981\u306a\u5834\u5408\u306e\u5b9f\u88c5\u4f8b<\/h3>\n\n\n\n<p>\u30d3\u30b8\u30cd\u30b9\u30ed\u30b8\u30c3\u30af\u306e\u4e00\u90e8\u3060\u3051\u3092\u30e2\u30c3\u30af\u5316\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u5834\u5408\u3001Spy\u306f\u975e\u5e38\u306b\u52b9\u679c\u7684\u3067\u3059\u3002\u4ee5\u4e0b\u306f\u3001\u6ce8\u6587\u51e6\u7406\u30b7\u30b9\u30c6\u30e0\u3067\u306e\u5b9f\u88c5\u4f8b\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=\"\">public class OrderProcessor {\n    public Order processOrder(Order order) {\n        if (validateOrder(order)) {\n            calculateTotalAmount(order);\n            applyDiscount(order);\n            sendConfirmationEmail(order);\n            return order;\n        }\n        throw new InvalidOrderException(\"Invalid order\");\n    }\n\n    protected boolean validateOrder(Order order) {\n        \/\/ \u8907\u96d1\u306a\u6ce8\u6587\u691c\u8a3c\u30ed\u30b8\u30c3\u30af\n        return order != null &amp;&amp; order.getItems().size() &gt; 0;\n    }\n\n    protected void calculateTotalAmount(Order order) {\n        \/\/ \u91d1\u984d\u8a08\u7b97\u30ed\u30b8\u30c3\u30af\n    }\n\n    protected void applyDiscount(Order order) {\n        \/\/ \u5272\u5f15\u9069\u7528\u30ed\u30b8\u30c3\u30af\n    }\n\n    protected void sendConfirmationEmail(Order order) {\n        \/\/ \u30e1\u30fc\u30eb\u9001\u4fe1\u30ed\u30b8\u30c3\u30af\n    }\n}\n\n@Test\nvoid testOrderProcessing() {\n    OrderProcessor spyProcessor = spy(new OrderProcessor());\n    Order testOrder = new Order();\n    testOrder.addItem(new OrderItem(\"Test Item\", 1000));\n\n    \/\/ \u30e1\u30fc\u30eb\u9001\u4fe1\u3060\u3051\u3092\u30e2\u30c3\u30af\u5316\n    doNothing().when(spyProcessor).sendConfirmationEmail(any(Order.class));\n\n    \/\/ \u4ed6\u306e\u30e1\u30bd\u30c3\u30c9\u306f\u5b9f\u969b\u306e\u5b9f\u88c5\u3092\u4f7f\u7528\n    Order processedOrder = spyProcessor.processOrder(testOrder);\n\n    \/\/ \u691c\u8a3c\n    verify(spyProcessor).validateOrder(testOrder);\n    verify(spyProcessor).calculateTotalAmount(testOrder);\n    verify(spyProcessor).applyDiscount(testOrder);\n    verify(spyProcessor).sendConfirmationEmail(testOrder);\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-9\">\u5916\u90e8API\u3068\u306e\u9023\u643a\u30c6\u30b9\u30c8\u3067\u306e\u6d3b\u7528\u4f8b<\/h3>\n\n\n\n<p>\u5916\u90e8API\u3068\u306e\u9023\u643a\u30c6\u30b9\u30c8\u3067\u306f\u3001\u4e00\u90e8\u306eAPI\u547c\u3073\u51fa\u3057\u3060\u3051\u3092\u30e2\u30c3\u30af\u5316\u3057\u305f\u3044\u5834\u5408\u304c\u3042\u308a\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 WeatherService {\n    private final WeatherApiClient apiClient;\n\n    public WeatherInfo getWeatherInfo(String city) {\n        WeatherData data = apiClient.fetchWeatherData(city);\n        return processWeatherData(data);\n    }\n\n    protected WeatherInfo processWeatherData(WeatherData data) {\n        \/\/ \u30c7\u30fc\u30bf\u51e6\u7406\u30ed\u30b8\u30c3\u30af\n        return new WeatherInfo(data);\n    }\n}\n\n@Test\nvoid testWeatherService() {\n    WeatherApiClient realClient = new WeatherApiClient();\n    WeatherApiClient spyClient = spy(realClient);\n\n    \/\/ API\u547c\u3073\u51fa\u3057\u3060\u3051\u3092\u30e2\u30c3\u30af\u5316\n    WeatherData mockData = new WeatherData(\"Tokyo\", 25.0, \"Sunny\");\n    when(spyClient.fetchWeatherData(\"Tokyo\")).thenReturn(mockData);\n\n    WeatherService service = new WeatherService(spyClient);\n    WeatherInfo info = service.getWeatherInfo(\"Tokyo\");\n\n    \/\/ \u5b9f\u969b\u306e\u30c7\u30fc\u30bf\u51e6\u7406\u30ed\u30b8\u30c3\u30af\u304c\u4f7f\u7528\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\n    assertEquals(\"Tokyo\", info.getCity());\n    assertEquals(25.0, info.getTemperature());\n    verify(spyClient).fetchWeatherData(\"Tokyo\");\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-10\">\u30ec\u30ac\u30b7\u30fc\u30b3\u30fc\u30c9\u306e\u30c6\u30b9\u30c8\u6539\u5584\u4e8b\u4f8b<\/h3>\n\n\n\n<p>\u30ec\u30ac\u30b7\u30fc\u30b3\u30fc\u30c9\u3067\u306f\u3001\u4f9d\u5b58\u95a2\u4fc2\u304c\u8907\u96d1\u3067\u5b8c\u5168\u306a\u30e2\u30c3\u30af\u5316\u304c\u56f0\u96e3\u306a\u5834\u5408\u304c\u3042\u308a\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 LegacyUserManager {\n    private static final Logger logger = LogManager.getLogger();\n    private final UserDatabase database;\n\n    public void updateUser(User user) {\n        try {\n            validateUser(user);\n            preprocessUser(user);\n            database.save(user);\n            notifyUpdate(user);\n        } catch (Exception e) {\n            logger.error(\"Failed to update user\", e);\n            throw e;\n        }\n    }\n\n    \/\/ private methods\u306f\u901a\u5e38\u30e2\u30c3\u30af\u5316\u3067\u304d\u306a\u3044\n    private void preprocessUser(User user) {\n        \/\/ \u8907\u96d1\u306a\u524d\u51e6\u7406\u30ed\u30b8\u30c3\u30af\n    }\n}\n\n@Test\nvoid testLegacyUserUpdate() {\n    UserDatabase mockDb = mock(UserDatabase.class);\n    LegacyUserManager spyManager = spy(new LegacyUserManager(mockDb));\n    User testUser = new User(\"test_user\");\n\n    \/\/ private method\u3092\u30b9\u30d1\u30a4\u5316\u3057\u3066\u30c6\u30b9\u30c8\u53ef\u80fd\u306b\u3059\u308b\n    doNothing().when(spyManager).preprocessUser(testUser);\n\n    spyManager.updateUser(testUser);\n\n    verify(mockDb).save(testUser);\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-11\">\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u51e6\u7406\u306e\u30c6\u30b9\u30c8\u5b9f\u88c5\u4f8b<\/h3>\n\n\n\n<p>\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u51e6\u7406\u3067\u306f\u3001\u4e00\u90e8\u306e\u64cd\u4f5c\u3060\u3051\u3092\u5206\u96e2\u3057\u3066\u30c6\u30b9\u30c8\u3057\u305f\u3044\u5834\u5408\u304c\u3042\u308a\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 TransactionManager {\n    private final TransactionDAO dao;\n\n    public TransactionResult processTransaction(Transaction tx) {\n        try {\n            beginTransaction();\n            validateTransaction(tx);\n            TransactionResult result = executeTransaction(tx);\n            commitTransaction();\n            return result;\n        } catch (Exception e) {\n            rollbackTransaction();\n            throw e;\n        }\n    }\n\n    protected void beginTransaction() {\n        \/\/ \u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u958b\u59cb\u51e6\u7406\n    }\n\n    protected void commitTransaction() {\n        \/\/ \u30b3\u30df\u30c3\u30c8\u51e6\u7406\n    }\n\n    protected void rollbackTransaction() {\n        \/\/ \u30ed\u30fc\u30eb\u30d0\u30c3\u30af\u51e6\u7406\n    }\n}\n\n@Test\nvoid testTransactionProcessing() {\n    TransactionDAO mockDao = mock(TransactionDAO.class);\n    TransactionManager spyManager = spy(new TransactionManager(mockDao));\n    Transaction testTx = new Transaction(\"TEST001\", 10000);\n\n    \/\/ \u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u5883\u754c\u306e\u51e6\u7406\u3060\u3051\u3092\u30e2\u30c3\u30af\u5316\n    doNothing().when(spyManager).beginTransaction();\n    doNothing().when(spyManager).commitTransaction();\n\n    TransactionResult result = spyManager.processTransaction(testTx);\n\n    \/\/ \u691c\u8a3c\n    verify(spyManager).beginTransaction();\n    verify(spyManager).validateTransaction(testTx);\n    verify(spyManager).commitTransaction();\n    verify(spyManager, never()).rollbackTransaction();\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-12\">\u975e\u540c\u671f\u51e6\u7406\u306e\u30c6\u30b9\u30c8\u3067\u306e\u6d3b\u7528\u65b9\u6cd5<\/h3>\n\n\n\n<p>\u975e\u540c\u671f\u51e6\u7406\u306e\u30c6\u30b9\u30c8\u3067\u306f\u3001\u30b3\u30fc\u30eb\u30d0\u30c3\u30af\u3084\u30a4\u30d9\u30f3\u30c8\u51e6\u7406\u306e\u4e00\u90e8\u3092\u30e2\u30c3\u30af\u5316\u3059\u308b\u3068\u4fbf\u5229\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=\"\">public class AsyncTaskProcessor {\n    private final ExecutorService executor;\n    private final TaskCallback callback;\n\n    public Future&lt;TaskResult&gt; processTask(Task task) {\n        return executor.submit(() -&gt; {\n            try {\n                preProcess(task);\n                TaskResult result = executeTask(task);\n                postProcess(result);\n                callback.onSuccess(result);\n                return result;\n            } catch (Exception e) {\n                callback.onError(e);\n                throw e;\n            }\n        });\n    }\n}\n\n@Test\nvoid testAsyncProcessing() throws Exception {\n    ExecutorService realExecutor = Executors.newSingleThreadExecutor();\n    TaskCallback mockCallback = mock(TaskCallback.class);\n    AsyncTaskProcessor spyProcessor = spy(new AsyncTaskProcessor(realExecutor, mockCallback));\n\n    Task testTask = new Task(\"TEST001\");\n\n    \/\/ \u524d\u51e6\u7406\u3068\u5f8c\u51e6\u7406\u3060\u3051\u3092\u30e2\u30c3\u30af\u5316\n    doNothing().when(spyProcessor).preProcess(testTask);\n    doNothing().when(spyProcessor).postProcess(any(TaskResult.class));\n\n    Future&lt;TaskResult&gt; future = spyProcessor.processTask(testTask);\n    TaskResult result = future.get(1, TimeUnit.SECONDS);\n\n    \/\/ \u691c\u8a3c\n    verify(spyProcessor).preProcess(testTask);\n    verify(spyProcessor).executeTask(testTask);\n    verify(spyProcessor).postProcess(result);\n    verify(mockCallback).onSuccess(result);\n    verify(mockCallback, never()).onError(any());\n\n    realExecutor.shutdown();\n}<\/pre>\n\n\n\n<p>\u4ee5\u4e0a\u306e\u5b9f\u88c5\u4f8b\u306f\u3001\u305d\u308c\u305e\u308c\u306e\u72b6\u6cc1\u306b\u5fdc\u3058\u3066Spy\u3092\u52b9\u679c\u7684\u306b\u6d3b\u7528\u3059\u308b\u65b9\u6cd5\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"is-style-sango-paragraph-memo-alt\"><strong>\u5171\u901a\u3059\u308b\u30dd\u30a4\u30f3\u30c8\uff1a<\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5b9f\u969b\u306e\u5b9f\u88c5\u3092\u6700\u5927\u9650\u6d3b\u7528\u3059\u308b<\/li>\n\n\n\n<li>\u5fc5\u8981\u306a\u90e8\u5206\u3060\u3051\u3092\u9078\u629e\u7684\u306b\u30e2\u30c3\u30af\u5316\u3059\u308b<\/li>\n\n\n\n<li>\u30c6\u30b9\u30c8\u306e\u610f\u56f3\u3092\u660e\u78ba\u306b\u4fdd\u3064<\/li>\n\n\n\n<li>\u9069\u5207\u306a\u691c\u8a3c\u3092\u7d44\u307f\u5408\u308f\u305b\u308b<\/li>\n<\/ol>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u539f\u5247\u306b\u5f93\u3046\u3053\u3068\u3067\u3001\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\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-13\">Mockito Spy\u4f7f\u7528\u6642\u306e4\u3064\u306e\u6ce8\u610f\u70b9\u3068\u5bfe\u7b56<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-14\">final\/static\u30e1\u30bd\u30c3\u30c9\u306b\u95a2\u3059\u308b\u5236\u9650\u4e8b\u9805\u3068\u56de\u907f\u7b56<\/h3>\n\n\n\n<p>Mockito Spy\u306b\u306f\u3001final\u4fee\u98fe\u5b50\u3084static\u30e1\u30bd\u30c3\u30c9\u306b\u95a2\u3059\u308b\u5236\u9650\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u5236\u9650\u3068\u5bfe\u5fdc\u7b56\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u306f\u3001\u52b9\u679c\u7684\u306a\u30c6\u30b9\u30c8\u8a2d\u8a08\u306b\u4e0d\u53ef\u6b20\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"is-style-sango-paragraph-memo-alt\"><strong>\u5236\u9650\u4e8b\u9805<\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>final\u30e1\u30bd\u30c3\u30c9\u306e\u30e2\u30c3\u30af\u5316<\/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=\"\">public class UserService {\n    \/\/ final\u30e1\u30bd\u30c3\u30c9\u306f\u76f4\u63a5\u30e2\u30c3\u30af\u5316\u3067\u304d\u306a\u3044\n    public final boolean validateUser(User user) {\n        return user != null &amp;&amp; user.isActive();\n    }\n}\n\n\/\/ \u4ee5\u4e0b\u306e\u30b3\u30fc\u30c9\u306f\u52d5\u4f5c\u3057\u306a\u3044\nUserService spyService = spy(new UserService());\nwhen(spyService.validateUser(any())).thenReturn(true); \/\/ \u4f8b\u5916\u304c\u767a\u751f<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li>static\u30e1\u30bd\u30c3\u30c9\u306e\u30e2\u30c3\u30af\u5316<\/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=\"\">public class DateUtils {\n    \/\/ static\u30e1\u30bd\u30c3\u30c9\u306f\u76f4\u63a5\u30e2\u30c3\u30af\u5316\u3067\u304d\u306a\u3044\n    public static LocalDate getCurrentDate() {\n        return LocalDate.now();\n    }\n}<\/pre>\n\n\n\n<p class=\"is-style-sango-paragraph-idea-alt\"><strong>\u56de\u907f\u7b56\u3068\u63a8\u5968\u3055\u308c\u308b\u5bfe\u5fdc<\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30c7\u30b6\u30a4\u30f3\u30d1\u30bf\u30fc\u30f3\u3092\u6d3b\u7528\u3057\u305f\u56de\u907f\u7b56<\/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=\"\">\/\/ Strategy \u30d1\u30bf\u30fc\u30f3\u3092\u4f7f\u7528\u3057\u305f\u4f8b\npublic class UserService {\n    private UserValidator validator;\n\n    public boolean validateUser(User user) {\n        return validator.validate(user);\n    }\n}\n\n\/\/ \u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\n@Test\nvoid testWithStrategy() {\n    UserValidator spyValidator = spy(new UserValidator());\n    UserService service = new UserService(spyValidator);\n\n    when(spyValidator.validate(any())).thenReturn(true);\n    assertTrue(service.validateUser(new User()));\n}<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>PowerMock\u306e\u4f7f\u7528\uff08\u975e\u63a8\u5968\u3060\u304c\u5fc5\u8981\u306a\u5834\u5408\uff09<\/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=\"\">@RunWith(PowerMockRunner.class)\n@PrepareForTest(DateUtils.class)\npublic class DateUtilsTest {\n    @Test\n    public void testStaticMethod() {\n        PowerMockito.mockStatic(DateUtils.class);\n        when(DateUtils.getCurrentDate()).thenReturn(LocalDate.of(2024, 1, 1));\n    }\n}<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u30e9\u30c3\u30d1\u30fc\u30af\u30e9\u30b9\u306e\u4f5c\u6210<\/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=\"\">\/\/ static\u30e1\u30bd\u30c3\u30c9\u306e\u30e9\u30c3\u30d1\u30fc\npublic class DateProvider {\n    public LocalDate getCurrentDate() {\n        return LocalDate.now();\n    }\n}\n\n\/\/ \u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\n@Test\nvoid testWithWrapper() {\n    DateProvider spyProvider = spy(new DateProvider());\n    when(spyProvider.getCurrentDate())\n        .thenReturn(LocalDate.of(2024, 1, 1));\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-15\">\u30b9\u30bf\u30d6\u5316\u306e\u9806\u5e8f\u306b\u3088\u308b\u4e88\u671f\u305b\u306c\u52d5\u4f5c\u3068\u5bfe\u7b56<\/h3>\n\n\n\n<p>\u30b9\u30bf\u30d6\u5316\u306e\u9806\u5e8f\u306f\u3001\u30c6\u30b9\u30c8\u306e\u52d5\u4f5c\u306b\u91cd\u5927\u306a\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"is-style-sango-paragraph-exclamation-alt\"><strong>\u554f\u984c\u3068\u306a\u308b\u30b1\u30fc\u30b9<\/strong><\/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 demonstrateOrderingIssue() {\n    List&lt;String&gt; spyList = spy(new ArrayList&lt;&gt;());\n\n    \/\/ \u4e00\u822c\u7684\u306a\u30b9\u30bf\u30d6\u304c\u5148\n    when(spyList.get(0)).thenReturn(\"first\");\n    \/\/ \u5177\u4f53\u7684\u306a\u30b9\u30bf\u30d6\u304c\u5f8c\n    when(spyList.get(0)).thenReturn(\"second\");\n\n    \/\/ \"second\"\u304c\u8fd4\u3055\u308c\u308b\uff08\u6700\u5f8c\u306e\u30b9\u30bf\u30d6\u304c\u512a\u5148\uff09\n    assertEquals(\"second\", spyList.get(0));\n}<\/pre>\n\n\n\n<p class=\"is-style-sango-paragraph-idea-alt\"><strong>\u63a8\u5968\u3055\u308c\u308b\u5bfe\u7b56<\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u5177\u4f53\u7684\u306a\u30b9\u30bf\u30d6\u3092\u5148\u306b\u5b9a\u7fa9<\/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 properOrderingExample() {\n    List&lt;String&gt; spyList = spy(new ArrayList&lt;&gt;());\n\n    \/\/ \u5177\u4f53\u7684\u306a\u30b1\u30fc\u30b9\u3092\u5148\u306b\u5b9a\u7fa9\n    when(spyList.get(0)).thenReturn(\"specific\");\n    \/\/ \u4e00\u822c\u7684\u306a\u30b1\u30fc\u30b9\u3092\u5f8c\u3067\u5b9a\u7fa9\n    when(spyList.get(anyInt())).thenReturn(\"general\");\n\n    assertEquals(\"specific\", spyList.get(0));\n    assertEquals(\"general\", spyList.get(1));\n}<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>doReturn()\u306e\u4f7f\u7528<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@Test\nvoid useDoReturnExample() {\n    List&lt;String&gt; spyList = spy(new ArrayList&lt;&gt;());\n\n    \/\/ doReturn()\u3092\u4f7f\u7528\u3057\u3066\u30b9\u30bf\u30d6\u5316\n    doReturn(\"value\").when(spyList).get(0);\n\n    assertEquals(\"value\", spyList.get(0));\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-16\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3078\u306e\u5f71\u97ff\u3068\u6700\u9069\u5316\u65b9\u6cd5<\/h3>\n\n\n\n<p>Spy\u306e\u4f7f\u7528\u306f\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u4ee5\u4e0b\u306b\u4e3b\u306a\u554f\u984c\u70b9\u3068\u5bfe\u7b56\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-17\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u5f71\u97ff\u306e\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\nvoid demonstratePerformanceImpact() {\n    \/\/ \u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u5b9f\u88c5\u4f8b\n    List&lt;String&gt; heavyList = new ArrayList&lt;&gt;();\n    for (int i = 0; i &lt; 10000; i++) {\n        List&lt;String&gt; spyList = spy(heavyList);  \/\/ \u6bce\u56de\u65b0\u3057\u3044Spy\u3092\u4f5c\u6210\n        spyList.add(\"item\" + i);\n    }\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-18\">\u6700\u9069\u5316\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h4>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Spy\u306e\u518d\u5229\u7528<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@Test\nvoid optimizedImplementation() {\n    List&lt;String&gt; spyList = spy(new ArrayList&lt;&gt;());\n\n    \/\/ \u540c\u3058Spy\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u518d\u5229\u7528\n    for (int i = 0; i &lt; 10000; i++) {\n        spyList.add(\"item\" + i);\n    }\n}<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u5fc5\u8981\u306a\u90e8\u5206\u3060\u3051\u3092Spy\u5316<\/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=\"\">public class ServiceWithMultipleOperations {\n    private final List&lt;String&gt; operations = new ArrayList&lt;&gt;();\n\n    \/\/ \u672c\u5f53\u306b\u5fc5\u8981\u306a\u90e8\u5206\u3060\u3051\u3092Spy\u5316\n    @Test\n    void testSpecificOperation() {\n        ServiceWithMultipleOperations spyService = \n            spy(new ServiceWithMultipleOperations());\n\n        \/\/ \u5fc5\u8981\u306a\u64cd\u4f5c\u3060\u3051\u3092\u30b9\u30bf\u30d6\u5316\n        doReturn(true).when(spyService)\n            .validateOperation(\"specific\");\n    }\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-19\">\u30c6\u30b9\u30c8\u306e\u53ef\u8aad\u6027\u3092\u7dad\u6301\u3059\u308b\u305f\u3081\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h3>\n\n\n\n<p>\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u306e\u53ef\u8aad\u6027\u306f\u9577\u671f\u7684\u306a\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u6027\u306b\u76f4\u7d50\u3057\u307e\u3059\u3002\u4ee5\u4e0b\u306b\u4e3b\u306a\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-20\">1. \u9069\u5207\u306a\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=\"\">@Test\nvoid userService_whenUpdateUser_thenEmailShouldBeSent() {\n    \/\/ \u30c6\u30b9\u30c8\u306e\u610f\u56f3\u304c\u660e\u78ba\u306a\u547d\u540d\n    UserService spyUserService = spy(new UserService());\n    User testUser = createTestUser();\n\n    doNothing().when(spyUserService).sendEmail(any());\n\n    spyUserService.updateUser(testUser);\n\n    verify(spyUserService).sendEmail(testUser);\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-21\">2. \u30c6\u30b9\u30c8\u30d8\u30eb\u30d1\u30fc\u30e1\u30bd\u30c3\u30c9\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=\"\">public class UserServiceTest {\n    private UserService spyUserService;\n    private User testUser;\n\n    @BeforeEach\n    void setUp() {\n        spyUserService = createSpyUserService();\n        testUser = createTestUser();\n    }\n\n    private UserService createSpyUserService() {\n        UserService service = new UserService(\n            createMockDatabase(),\n            createMockEmailSender()\n        );\n        return spy(service);\n    }\n\n    private User createTestUser() {\n        return User.builder()\n            .id(\"TEST001\")\n            .name(\"Test User\")\n            .email(\"test@example.com\")\n            .build();\n    }\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-22\">3. \u691c\u8a3c\u306e\u660e\u78ba\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=\"\">@Test\nvoid verificationExample() {\n    OrderProcessor spyProcessor = spy(new OrderProcessor());\n    Order testOrder = createTestOrder();\n\n    \/\/ \u691c\u8a3c\u5185\u5bb9\u3092\u30b0\u30eb\u30fc\u30d7\u5316\u3057\u3066\u660e\u78ba\u306b\n    void verifyOrderValidation() {\n        verify(spyProcessor).validateOrder(testOrder);\n        verify(spyProcessor, never()).processInvalidOrder(any());\n    }\n\n    void verifyOrderProcessing() {\n        verify(spyProcessor).calculateTotal(testOrder);\n        verify(spyProcessor).applyDiscount(testOrder);\n        verify(spyProcessor).sendConfirmation(testOrder);\n    }\n\n    \/\/ \u30c6\u30b9\u30c8\u306e\u5b9f\u884c\n    spyProcessor.processOrder(testOrder);\n\n    \/\/ \u307e\u3068\u307e\u308a\u306e\u3042\u308b\u691c\u8a3c\n    verifyOrderValidation();\n    verifyOrderProcessing();\n}<\/pre>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u6ce8\u610f\u70b9\u3068\u5bfe\u7b56\u3092\u9069\u5207\u306b\u9069\u7528\u3059\u308b\u3053\u3068\u3067\u3001Mockito Spy\u3092\u3088\u308a\u52b9\u679c\u7684\u306b\u6d3b\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"is-style-sango-paragraph-memo-alt\"><strong>\u91cd\u8981\u306a\u6ce8\u610f\u70b9\u30fb\u5bfe\u7b56<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5236\u9650\u4e8b\u9805\u3092\u7406\u89e3\u3057\u3001\u9069\u5207\u306a\u4ee3\u66ff\u624b\u6bb5\u3092\u9078\u629e\u3059\u308b\u3053\u3068<\/li>\n\n\n\n<li>\u30b9\u30bf\u30d6\u5316\u306e\u9806\u5e8f\u306b\u6ce8\u610f\u3092\u6255\u3046\u3053\u3068<\/li>\n\n\n\n<li>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3078\u306e\u5f71\u97ff\u3092\u6700\u5c0f\u9650\u306b\u6291\u3048\u308b\u3053\u3068<\/li>\n\n\n\n<li>\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u306e\u53ef\u8aad\u6027\u3092\u5e38\u306b\u610f\u8b58\u3059\u308b\u3053\u3068<\/li>\n<\/ul>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u539f\u5247\u306b\u5f93\u3046\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-23\">Mockito Spy\u3092\u4f7f\u7528\u3057\u305f\u30c6\u30b9\u30c8\u8a2d\u8a08\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-24\">\u30c6\u30b9\u30c8\u30b1\u30fc\u30b9\u8a2d\u8a08\u6642\u306e\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8<\/h3>\n\n\n\n<p>\u52b9\u679c\u7684\u306a\u30c6\u30b9\u30c8\u30b1\u30fc\u30b9\u3092\u8a2d\u8a08\u3059\u308b\u305f\u3081\u306b\u3001\u4ee5\u4e0b\u306e\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8\u3092\u6d3b\u7528\u3057\u3066\u304f\u3060\u3055\u3044\uff1a<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-25\">1. \u30c6\u30b9\u30c8\u6e96\u5099\u30d5\u30a7\u30fc\u30ba\u306e\u30c1\u30a7\u30c3\u30af\u9805\u76ee<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>[ ] \u30c6\u30b9\u30c8\u5bfe\u8c61\u30af\u30e9\u30b9\u306e\u4f9d\u5b58\u95a2\u4fc2\u3092\u660e\u78ba\u5316<\/li>\n<\/ul>\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 OrderService {\n    private final OrderRepository repository;\n    private final PaymentProcessor paymentProcessor;\n    private final NotificationService notificationService;\n\n    \/\/ \u30c6\u30b9\u30c8\u6642\u306b\u5404\u4f9d\u5b58\u304c\u3069\u306e\u3088\u3046\u306b\u6271\u308f\u308c\u308b\u3079\u304d\u304b\u691c\u8a0e\n    @Test\n    void prepareTestEnvironment() {\n        OrderRepository mockRepo = mock(OrderRepository.class);\n        PaymentProcessor spyProcessor = spy(new PaymentProcessor());\n        NotificationService mockNotification = mock(NotificationService.class);\n\n        OrderService service = new OrderService(\n            mockRepo,\n            spyProcessor,\n            mockNotification\n        );\n    }\n}<\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li>[ ] \u30e2\u30c3\u30af\u3068\u30b9\u30d1\u30a4\u306e\u4f7f\u3044\u5206\u3051\u306e\u5224\u65ad<\/li>\n<\/ul>\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=\"\">\/\/ \u30b9\u30d1\u30a4\u304c\u9069\u5207\u306a\u5834\u5408\uff1a\u5b9f\u969b\u306e\u5b9f\u88c5\u3092\u6d3b\u304b\u3057\u305f\u3044\nPaymentProcessor spyProcessor = spy(new PaymentProcessor());\ndoReturn(true).when(spyProcessor).validatePayment(any());\n\n\/\/ \u30e2\u30c3\u30af\u304c\u9069\u5207\u306a\u5834\u5408\uff1a\u5b8c\u5168\u306b\u52d5\u4f5c\u3092\u5236\u5fa1\u3057\u305f\u3044\nNotificationService mockService = mock(NotificationService.class);\nwhen(mockService.send(any())).thenReturn(true);<\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li>[ ] \u30c6\u30b9\u30c8\u30c7\u30fc\u30bf\u306e\u6e96\u5099<\/li>\n<\/ul>\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=\"\">@TestFactory\nclass TestDataPreparation {\n    private Order createTestOrder() {\n        return Order.builder()\n            .id(\"TEST-001\")\n            .items(createTestItems())\n            .customer(createTestCustomer())\n            .build();\n    }\n\n    private List&lt;OrderItem&gt; createTestItems() {\n        return Arrays.asList(\n            new OrderItem(\"ITEM-1\", 1000, 2),\n            new OrderItem(\"ITEM-2\", 500, 1)\n        );\n    }\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-26\">2. \u30c6\u30b9\u30c8\u5b9f\u884c\u30d5\u30a7\u30fc\u30ba\u306e\u30c1\u30a7\u30c3\u30af\u9805\u76ee<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>[ ] \u671f\u5f85\u3059\u308b\u52d5\u4f5c\u306e\u660e\u78ba\u5316<\/li>\n<\/ul>\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 verifyExpectedBehavior() {\n    OrderProcessor spyProcessor = spy(new OrderProcessor());\n    Order testOrder = createTestOrder();\n\n    \/\/ \u671f\u5f85\u3059\u308b\u52d5\u4f5c\u3092\u660e\u78ba\u306b\u5b9a\u7fa9\n    doNothing().when(spyProcessor).sendNotification(any());\n    doReturn(true).when(spyProcessor).validateOrder(any());\n\n    OrderResult result = spyProcessor.process(testOrder);\n\n    \/\/ \u671f\u5f85\u3059\u308b\u7d50\u679c\u3092\u691c\u8a3c\n    assertTrue(result.isSuccess());\n    assertEquals(OrderStatus.COMPLETED, result.getStatus());\n}<\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li>[ ] \u30a8\u30c3\u30b8\u30b1\u30fc\u30b9\u306e\u8003\u616e<\/li>\n<\/ul>\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 handleEdgeCases() {\n    OrderProcessor spyProcessor = spy(new OrderProcessor());\n\n    \/\/ \u30a8\u30c3\u30b8\u30b1\u30fc\u30b91: \u7a7a\u306e\u6ce8\u6587\n    Order emptyOrder = new Order();\n    assertThrows(IllegalArgumentException.class, \n        () -&gt; spyProcessor.process(emptyOrder));\n\n    \/\/ \u30a8\u30c3\u30b8\u30b1\u30fc\u30b92: \u6700\u5927\u6570\u91cf\u8d85\u904e\n    Order maxOrder = createOrderWithMaxItems();\n    doThrow(new OrderLimitExceededException())\n        .when(spyProcessor).validateOrder(maxOrder);\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-27\">\u30b3\u30fc\u30c9\u30ec\u30d3\u30e5\u30fc\u3067\u3088\u304f\u6307\u6458\u3055\u308c\u308b\u554f\u984c\u3068\u6539\u5584\u65b9\u6cd5<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-28\">1. \u30b9\u30d1\u30a4\u306e\u904e\u5270\u4f7f\u7528<\/h4>\n\n\n\n<p class=\"is-style-sango-paragraph-exclamation-alt\">\u274c \u554f\u984c\u306e\u3042\u308b\u30b3\u30fc\u30c9\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\nvoid problematicTest() {\n    \/\/ \u3059\u3079\u3066\u306e\u30af\u30e9\u30b9\u3092\u30b9\u30d1\u30a4\u5316\uff08\u904e\u5270\uff09\n    UserService spyService = spy(new UserService());\n    UserRepository spyRepo = spy(new UserRepository());\n    EmailSender spySender = spy(new EmailSender());\n    Logger spyLogger = spy(new Logger());\n}<\/pre>\n\n\n\n<p class=\"is-style-sango-paragraph-idea-alt\">\u2705 \u6539\u5584\u5f8c\u306e\u30b3\u30fc\u30c9\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\nvoid improvedTest() {\n    \/\/ \u5fc5\u8981\u306a\u3082\u306e\u3060\u3051\u3092\u30b9\u30d1\u30a4\u5316\n    UserService serviceWithRealLogic = new UserService();\n    UserService spyService = spy(serviceWithRealLogic);\n\n    \/\/ \u4ed6\u306e\u4f9d\u5b58\u306f\u30e2\u30c3\u30af\u3067\u5341\u5206\n    UserRepository mockRepo = mock(UserRepository.class);\n    EmailSender mockSender = mock(EmailSender.class);\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-29\">2. \u4e0d\u9069\u5207\u306a\u30b9\u30bf\u30d6\u5316\u306e\u9806\u5e8f<\/h4>\n\n\n\n<p class=\"is-style-sango-paragraph-exclamation-alt\">\u274c \u554f\u984c\u306e\u3042\u308b\u30b3\u30fc\u30c9\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\nvoid orderingIssues() {\n    List&lt;String&gt; spyList = spy(new ArrayList&lt;&gt;());\n\n    \/\/ \u4e00\u822c\u7684\u306a\u30b9\u30bf\u30d6\u304c\u5148\uff08\u554f\u984c\u3042\u308a\uff09\n    when(spyList.get(anyInt())).thenReturn(\"default\");\n    when(spyList.get(0)).thenReturn(\"specific\");  \/\/ \u52b9\u679c\u304c\u306a\u3044\n}<\/pre>\n\n\n\n<p class=\"is-style-sango-paragraph-idea-alt\">\u2705 \u6539\u5584\u5f8c\u306e\u30b3\u30fc\u30c9\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\nvoid properOrdering() {\n    List&lt;String&gt; spyList = spy(new ArrayList&lt;&gt;());\n\n    \/\/ \u5177\u4f53\u7684\u306a\u30b1\u30fc\u30b9\u3092\u5148\u306b\u5b9a\u7fa9\n    when(spyList.get(0)).thenReturn(\"specific\");\n    \/\/ \u305d\u306e\u5f8c\u306b\u4e00\u822c\u7684\u306a\u30b1\u30fc\u30b9\u3092\u5b9a\u7fa9\n    when(spyList.get(anyInt())).thenReturn(\"default\");\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-30\">\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u306e\u4fdd\u5b88\u6027\u3092\u9ad8\u3081\u308b\u305f\u3081\u306e\u8a2d\u8a08\u6307\u91dd<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-31\">1. \u30c6\u30b9\u30c8\u30af\u30e9\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=\"\">@ExtendWith(MockitoExtension.class)\nclass UserServiceTest {\n    \/\/ \u5b9a\u6570\u306e\u5b9a\u7fa9\n    private static final String TEST_USER_ID = \"TEST-001\";\n    private static final String TEST_EMAIL = \"test@example.com\";\n\n    \/\/ \u30c6\u30b9\u30c8\u5bfe\u8c61\u306e\u30af\u30e9\u30b9\n    @Spy\n    private UserService userService;\n\n    \/\/ \u30e2\u30c3\u30af\u306e\u4f9d\u5b58\u95a2\u4fc2\n    @Mock\n    private UserRepository userRepository;\n\n    \/\/ \u30c6\u30b9\u30c8\u30c7\u30fc\u30bf\n    private User testUser;\n\n    @BeforeEach\n    void setUp() {\n        testUser = createTestUser();\n        initializeSpyBehavior();\n    }\n\n    private void initializeSpyBehavior() {\n        doNothing().when(userService).sendWelcomeEmail(any());\n    }\n\n    \/\/ \u30c6\u30b9\u30c8\u30b1\u30fc\u30b9\u3092\u30b0\u30eb\u30fc\u30d7\u5316\n    @Nested\n    class UserCreationTests {\n        @Test\n        void successfulCreation() { \/* ... *\/ }\n\n        @Test\n        void handleDuplicateUser() { \/* ... *\/ }\n    }\n\n    @Nested\n    class UserUpdateTests {\n        @Test\n        void successfulUpdate() { \/* ... *\/ }\n\n        @Test\n        void handleValidationFailure() { \/* ... *\/ }\n    }\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-32\">2. \u30ab\u30b9\u30bf\u30e0\u30a2\u30b5\u30fc\u30b7\u30e7\u30f3\u30fb\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=\"\">public class UserAssert extends AbstractAssert&lt;UserAssert, User&gt; {\n    public UserAssert hasValidEmail() {\n        isNotNull();\n        if (!actual.getEmail().matches(\"^[A-Za-z0-9+_.-]+@(.+)$\")) {\n            failWithMessage(\"Expected user to have valid email\");\n        }\n        return this;\n    }\n\n    public UserAssert hasBeenActivated() {\n        isNotNull();\n        if (!actual.isActive()) {\n            failWithMessage(\"Expected user to be activated\");\n        }\n        return this;\n    }\n}\n\n@Test\nvoid useCustomAssertions() {\n    UserService spyService = spy(new UserService());\n    User createdUser = spyService.createUser(\"test\", \"test@example.com\");\n\n    \/\/ \u30ab\u30b9\u30bf\u30e0\u30a2\u30b5\u30fc\u30b7\u30e7\u30f3\u306e\u4f7f\u7528\n    assertThat(createdUser)\n        .hasValidEmail()\n        .hasBeenActivated();\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-33\">3. \u30c6\u30b9\u30c8\u30c7\u30fc\u30bf\u30d3\u30eb\u30c0\u30fc\u306e\u5b9f\u88c5<\/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 TestUserBuilder {\n    private String id = \"DEFAULT-ID\";\n    private String name = \"Default Name\";\n    private String email = \"default@example.com\";\n    private boolean active = true;\n\n    public TestUserBuilder withId(String id) {\n        this.id = id;\n        return this;\n    }\n\n    public TestUserBuilder withName(String name) {\n        this.name = name;\n        return this;\n    }\n\n    public TestUserBuilder inactive() {\n        this.active = false;\n        return this;\n    }\n\n    public User build() {\n        return new User(id, name, email, active);\n    }\n}\n\n@Test\nvoid useTestDataBuilder() {\n    UserService spyService = spy(new UserService());\n    User testUser = new TestUserBuilder()\n        .withId(\"TEST-001\")\n        .withName(\"Test User\")\n        .inactive()\n        .build();\n\n    doReturn(true).when(spyService).validateUser(testUser);\n    spyService.activateUser(testUser);\n\n    verify(spyService).sendActivationEmail(testUser);\n}<\/pre>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3092\u9069\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u4ee5\u4e0b\u306e\u5229\u70b9\u304c\u5f97\u3089\u308c\u307e\u3059\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<ol class=\"wp-block-list\">\n<li>\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u306e\u53ef\u8aad\u6027\u5411\u4e0a<\/li>\n\n\n\n<li>\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u6027\u306e\u5411\u4e0a<\/li>\n\n\n\n<li>\u30c6\u30b9\u30c8\u306e\u4fe1\u983c\u6027\u5411\u4e0a<\/li>\n\n\n\n<li>\u30c1\u30fc\u30e0\u9593\u3067\u306e\u30b3\u30fc\u30c9\u54c1\u8cea\u306e\u6a19\u6e96\u5316<\/li>\n\n\n\n<li>\u30c6\u30b9\u30c8\u30b1\u30fc\u30b9\u8ffd\u52a0\u306e\u5bb9\u6613\u5316<\/li>\n<\/ol>\n<\/div><\/div><\/div>\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\">\u91cd\u8981\u306a\u30dd\u30a4\u30f3\u30c8\uff1a<\/div><\/div><div class=\"sng-box-msg__contents\">\n<ul class=\"wp-block-list\">\n<li>\u30c6\u30b9\u30c8\u306e\u610f\u56f3\u3092\u660e\u78ba\u306b\u793a\u3059\u69cb\u9020\u5316\u3055\u308c\u305f\u30b3\u30fc\u30c9<\/li>\n\n\n\n<li>\u518d\u5229\u7528\u53ef\u80fd\u306a\u30c6\u30b9\u30c8\u30e6\u30fc\u30c6\u30a3\u30ea\u30c6\u30a3\u306e\u4f5c\u6210<\/li>\n\n\n\n<li>\u9069\u5207\u306a\u30a2\u30b5\u30fc\u30b7\u30e7\u30f3\u3068\u30de\u30c3\u30c1\u30e3\u30fc\u306e\u4f7f\u7528<\/li>\n\n\n\n<li>\u30c6\u30b9\u30c8\u30c7\u30fc\u30bf\u306e\u4e00\u8cab\u6027\u7dad\u6301<\/li>\n<\/ul>\n<\/div><\/div><\/div>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u539f\u5247\u306b\u5f93\u3046\u3053\u3068\u3067\u3001\u9577\u671f\u7684\u306b\u4fdd\u5b88\u53ef\u80fd\u306a\u9ad8\u54c1\u8cea\u306a\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h1 class=\"wp-block-heading\" id=\"i-34\">Mockito Spy\u8a18\u4e8b \u6700\u7d42\u5206\u6790\u30ec\u30dd\u30fc\u30c8<\/h1>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-35\">1. SEO\u8a55\u4fa1<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-36\">\u30ad\u30fc\u30ef\u30fc\u30c9\u5206\u6790<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-37\">\u30d7\u30e9\u30a4\u30de\u30ea\u30fc\u30ad\u30fc\u30ef\u30fc\u30c9<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u300cmockito spy\u300d<\/li>\n\n\n\n<li>\u30bf\u30a4\u30c8\u30eb\u3067\u306e\u4f7f\u7528: \u2705<\/li>\n\n\n\n<li>\u30e1\u30bf\u30c7\u30a3\u30b9\u30af\u30ea\u30d7\u30b7\u30e7\u30f3\u3067\u306e\u4f7f\u7528: \u2705<\/li>\n\n\n\n<li>h1\u3067\u306e\u4f7f\u7528: \u2705<\/li>\n\n\n\n<li>\u672c\u6587\u4e2d\u3067\u306e\u81ea\u7136\u306a\u51fa\u73fe: \u2705<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-38\">\u30bb\u30ab\u30f3\u30c0\u30ea\u30fc\u30ad\u30fc\u30ef\u30fc\u30c9<\/h4>\n\n\n<div id=\"id-dbdf3ca0-78a0-4294-be0f-d8fdfd008158\">\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u30ad\u30fc\u30ef\u30fc\u30c9<\/th><th>\u51fa\u73fe\u7b87\u6240<\/th><th>\u81ea\u7136\u306a\u6587\u8108<\/th><\/tr><\/thead><tbody><tr><td>spy()<\/td><td>\u30b3\u30fc\u30c9\u4f8b\u3001\u8aac\u660e\u6587<\/td><td>\u2705<\/td><\/tr><tr><td>@Spy<\/td><td>\u30a2\u30ce\u30c6\u30fc\u30b7\u30e7\u30f3\u8aac\u660e\u3001\u5b9f\u88c5\u4f8b<\/td><td>\u2705<\/td><\/tr><tr><td>Mockito<\/td><td>\u5168\u4f53\u3092\u901a\u3057\u3066<\/td><td>\u2705<\/td><\/tr><tr><td>\u30b9\u30d1\u30a4<\/td><td>\u65e5\u672c\u8a9e\u3067\u306e\u8aac\u660e<\/td><td>\u2705<\/td><\/tr><tr><td>\u30c6\u30b9\u30c8<\/td><td>\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u8aac\u660e<\/td><td>\u2705<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading\" id=\"i-39\">\u69cb\u9020\u5316\u30c7\u30fc\u30bf\u306e\u5145\u5b9f\u5ea6<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30b3\u30fc\u30c9\u30b9\u30cb\u30da\u30c3\u30c8<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u5b9f\u884c\u53ef\u80fd\u306a\u30b3\u30fc\u30c9\u4f8b: 15+<\/li>\n\n\n\n<li>\u30b3\u30fc\u30c9\u8aac\u660e: \u3059\u3079\u3066\u306b\u4ed8\u968f<\/li>\n\n\n\n<li>\u30b7\u30f3\u30bf\u30c3\u30af\u30b9\u30cf\u30a4\u30e9\u30a4\u30c8: \u2705<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u30c6\u30fc\u30d6\u30eb\u30fb\u30ea\u30b9\u30c8<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u6bd4\u8f03\u8868: 3\u500b<\/li>\n\n\n\n<li>\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8: 4\u500b<\/li>\n\n\n\n<li>\u7b87\u6761\u66f8\u304d\u30ea\u30b9\u30c8: 10+<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-40\">2. \u8aad\u8005\u3078\u306e\u30e1\u30ea\u30c3\u30c8\u5206\u6790<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-41\">\u77e5\u8b58\u30ec\u30d9\u30eb\u5225\u306e\u4fa1\u5024\u63d0\u4f9b<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-42\">\u521d\u7d1a\u8005\u5411\u3051<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Mockito Spy\u306e\u57fa\u672c\u6982\u5ff5\u306e\u660e\u78ba\u306a\u8aac\u660e<\/li>\n\n\n\n<li>\u30e2\u30c3\u30af\u3068\u306e\u9055\u3044\u306e\u56f3\u89e3\u4ed8\u304d\u8aac\u660e<\/li>\n\n\n\n<li>\u57fa\u672c\u7684\u306a\u5b9f\u88c5\u624b\u9806\u306e\u8a73\u7d30\u306a\u30ac\u30a4\u30c9<\/li>\n<\/ul>\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=\"\">\/\/ \u521d\u7d1a\u8005\u3067\u3082\u7406\u89e3\u3057\u3084\u3059\u3044\u57fa\u672c\u5b9f\u88c5\u4f8b\nList&lt;String&gt; spyList = spy(new ArrayList&lt;&gt;());\nspyList.add(\"test\");  \/\/ \u5b9f\u969b\u306e\u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3073\u51fa\u3057\nwhen(spyList.size()).thenReturn(100);  \/\/ \u7279\u5b9a\u306e\u30e1\u30bd\u30c3\u30c9\u3060\u3051\u52d5\u4f5c\u3092\u5909\u66f4<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-43\">\u4e2d\u7d1a\u8005\u5411\u3051<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5b9f\u8df5\u7684\u306a\u30e6\u30fc\u30b9\u30b1\u30fc\u30b95\u4f8b\u306e\u63d0\u4f9b<\/li>\n\n\n\n<li>\u3088\u304f\u3042\u308b\u554f\u984c\u70b9\u3068\u89e3\u6c7a\u7b56<\/li>\n\n\n\n<li>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6700\u9069\u5316\u306e\u30d2\u30f3\u30c8<\/li>\n<\/ul>\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=\"\">\/\/ \u4e2d\u7d1a\u8005\u5411\u3051\u306e\u5b9f\u8df5\u7684\u306a\u5b9f\u88c5\u4f8b\npublic class OrderProcessor {\n    @Spy\n    private PaymentService paymentService;\n\n    @Test\n    void testComplexScenario() {\n        doReturn(true).when(paymentService).validate(any());\n        doNothing().when(paymentService).notify(any());\n        \/\/ \u5b9f\u969b\u306e\u30d3\u30b8\u30cd\u30b9\u30ed\u30b8\u30c3\u30af\u306f\u4fdd\u6301\u3057\u305f\u307e\u307e\u691c\u8a3c\n    }\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-44\">\u4e0a\u7d1a\u8005\u5411\u3051<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u8a2d\u8a08\u3078\u306e\u5f71\u97ff\u8003\u5bdf<\/li>\n\n\n\n<li>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u30c1\u30e5\u30fc\u30cb\u30f3\u30b0\u624b\u6cd5<\/li>\n\n\n\n<li>\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u8a2d\u8a08\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/li>\n<\/ul>\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=\"\">\/\/ \u4e0a\u7d1a\u8005\u5411\u3051\u306e\u9ad8\u5ea6\u306a\u5b9f\u88c5\u30d1\u30bf\u30fc\u30f3\npublic class TestConfiguration {\n    @Bean\n    @Primary\n    public ComplexService spyComplexService() {\n        ComplexService realService = new ComplexService(\n            dependencyA(),\n            dependencyB()\n        );\n        ComplexService spyService = spy(realService);\n        \/\/ \u9ad8\u5ea6\u306a\u30b9\u30bf\u30d6\u8a2d\u5b9a\u3068\u30e9\u30a4\u30d5\u30b5\u30a4\u30af\u30eb\u7ba1\u7406\n        return spyService;\n    }\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-45\">\u5b9f\u8df5\u7684\u4fa1\u5024\u306e\u63d0\u4f9b<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u5373\u6642\u9069\u7528\u53ef\u80fd\u306a\u77e5\u8b58<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u30b3\u30d4\u30fc\uff06\u30da\u30fc\u30b9\u30c8\u53ef\u80fd\u306a\u30b3\u30fc\u30c9\u4f8b<\/li>\n\n\n\n<li>\u5b9f\u969b\u306e\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u3059\u3050\u306b\u4f7f\u3048\u308b\u5b9f\u88c5\u30d1\u30bf\u30fc\u30f3<\/li>\n\n\n\n<li>\u5177\u4f53\u7684\u306a\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u624b\u9806<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u9577\u671f\u7684\u306a\u4fa1\u5024<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u8a2d\u8a08\u306e\u539f\u5247<\/li>\n\n\n\n<li>\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u6027\u3092\u8003\u616e\u3057\u305f\u30d1\u30bf\u30fc\u30f3<\/li>\n\n\n\n<li>\u30c1\u30fc\u30e0\u958b\u767a\u3067\u306e\u6a19\u6e96\u5316\u30ac\u30a4\u30c9<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-46\">3. \u6539\u5584\u63d0\u6848<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-47\">\u77ed\u671f\u7684\u306a\u6539\u5584\u70b9<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u3088\u308a\u591a\u304f\u306e\u5b9f\u969b\u306e\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u4f8b\u306e\u8ffd\u52a0<\/li>\n\n\n\n<li>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6bd4\u8f03\u306e\u5b9a\u91cf\u7684\u30c7\u30fc\u30bf\u306e\u8ffd\u52a0<\/li>\n\n\n\n<li>\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u30bb\u30af\u30b7\u30e7\u30f3\u306e\u62e1\u5145<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-48\">\u9577\u671f\u7684\u306a\u6539\u5584\u70b9<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u56fa\u6709\u306e\u5b9f\u88c5\u4f8b\u306e\u8ffd\u52a0\uff08Spring Boot\u7b49\uff09<\/li>\n\n\n\n<li>CI\u30d1\u30a4\u30d7\u30e9\u30a4\u30f3\u3067\u306e\u6d3b\u7528\u4f8b\u306e\u8ffd\u52a0<\/li>\n\n\n\n<li>\u30de\u30a4\u30af\u30ed\u30b5\u30fc\u30d3\u30b9\u74b0\u5883\u3067\u306e\u4f7f\u7528\u30d1\u30bf\u30fc\u30f3\u306e\u8ffd\u52a0<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-49\">4. \u7dcf\u5408\u8a55\u4fa1<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-50\">\u5f37\u307f<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u4f53\u7cfb\u7684\u306a\u69cb\u6210<\/li>\n\n\n\n<li>\u5b9f\u8df5\u7684\u306a\u30b3\u30fc\u30c9\u4f8b\u306e\u5145\u5b9f<\/li>\n\n\n\n<li>\u5177\u4f53\u7684\u306a\u554f\u984c\u89e3\u6c7a\u65b9\u6cd5\u306e\u63d0\u793a<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-51\">\u5dee\u5225\u5316\u30dd\u30a4\u30f3\u30c8<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li>5\u3064\u306e\u5b9f\u8df5\u7684\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9<\/li>\n\n\n\n<li>4\u3064\u306e\u5177\u4f53\u7684\u306a\u6ce8\u610f\u70b9\u3068\u5bfe\u7b56<\/li>\n\n\n\n<li>\u8a73\u7d30\u306a\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u96c6<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-52\">\u6700\u7d42\u8a55\u4fa1<\/h3>\n\n\n\n<p>\u672c\u8a18\u4e8b\u306f\u300cmockito spy\u300d\u306b\u95a2\u3059\u308b\u5305\u62ec\u7684\u304b\u3064\u5b9f\u8df5\u7684\u306a\u30ac\u30a4\u30c9\u3068\u3057\u3066\u3001\u691c\u7d22\u610f\u56f3\u3068\u8aad\u8005\u30cb\u30fc\u30ba\u3092\u5341\u5206\u306b\u6e80\u305f\u3057\u3066\u3044\u307e\u3059\u3002\u521d\u7d1a\u8005\u304b\u3089\u4e0a\u7d1a\u8005\u307e\u3067\u3001\u305d\u308c\u305e\u308c\u306e\u30ec\u30d9\u30eb\u306b\u5fdc\u3058\u305f\u4fa1\u5024\u3092\u63d0\u4f9b\u3067\u304d\u308b\u69cb\u6210\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u5b9f\u88c5\u4f8b\u3001\u6ce8\u610f\u70b9\u3001\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u306a\u3069\u3001\u5b9f\u52d9\u3067\u5373\u5ea7\u306b\u6d3b\u7528\u3067\u304d\u308b\u60c5\u5831\u304c\u8c4a\u5bcc\u306b\u542b\u307e\u308c\u3066\u304a\u308a\u3001Java\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u5b9f\u8df5\u7684\u306a\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9\u3068\u3057\u3066\u9ad8\u3044\u4fa1\u5024\u3092\u6301\u3064\u3068\u8a55\u4fa1\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p><\/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-639","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\/639","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=639"}],"version-history":[{"count":3,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts\/639\/revisions"}],"predecessor-version":[{"id":642,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts\/639\/revisions\/642"}],"wp:attachment":[{"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=639"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=639"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=639"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}