{"id":202600,"date":"2025-05-22T08:37:46","date_gmt":"2025-05-22T00:37:46","guid":{"rendered":"https:\/\/server.hk\/cnblog\/202600\/"},"modified":"2025-05-22T08:37:46","modified_gmt":"2025-05-22T00:37:46","slug":"%e5%a6%82%e4%bd%95%e5%9c%a8-java-%e4%b8%ad%e4%bd%bf%e7%94%a8-junit%e6%9d%a5%e6%b5%8b%e8%af%95%e5%bc%82%e5%b8%b8%e5%a4%84%e7%90%86%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/202600\/","title":{"rendered":"\u5982\u4f55\u5728 Java \u4e2d\u4f7f\u7528 JUnit\u6765\u6d4b\u8bd5\u5f02\u5e38\u5904\u7406\uff1f"},"content":{"rendered":"

<\/b> <\/p>\n

\u5982\u4f55\u5728 Java \u4e2d\u4f7f\u7528 JUnit\u6765\u6d4b\u8bd5\u5f02\u5e38\u5904\u7406\uff1f<\/h1>\n

\u672c\u7bc7\u6587\u7ae0\u7ed9\u5927\u5bb6\u5206\u4eab\u300a\u5982\u4f55\u5728 Java \u4e2d\u4f7f\u7528 JUnit\u6765\u6d4b\u8bd5\u5f02\u5e38\u5904\u7406\uff1f\u300b\uff0c\u8986\u76d6\u4e86\u6587\u7ae0\u7684\u5e38\u89c1\u57fa\u7840\u77e5\u8bc6\uff0c\u5176\u5b9e\u4e00\u4e2a\u8bed\u8a00\u7684\u5168\u90e8\u77e5\u8bc6\u70b9\u4e00\u7bc7\u6587\u7ae0\u662f\u4e0d\u53ef\u80fd\u8bf4\u5b8c\u7684\uff0c\u4f46\u5e0c\u671b\u901a\u8fc7\u8fd9\u4e9b\u95ee\u9898\uff0c\u8ba9\u8bfb\u8005\u5bf9\u81ea\u5df1\u7684\u638c\u63e1\u7a0b\u5ea6\u6709\u4e00\u5b9a\u7684\u8ba4\u8bc6(B \u6570)\uff0c\u4ece\u800c\u5f25\u8865\u81ea\u5df1\u7684\u4e0d\u8db3\uff0c\u66f4\u597d\u7684\u638c\u63e1\u5b83\u3002<\/p>\n

\u5982\u4f55\u4f7f\u7528 JUnit \u5728 Java \u4e2d\u6d4b\u8bd5\u5f02\u5e38\u5904\u7406\uff1f\u4f7f\u7528 @Test \u6ce8\u89e3\u6807\u8bb0\u8981\u6d4b\u8bd5\u7684\u65b9\u6cd5\uff0c\u6307\u5b9a\u9884\u671f\u7684\u5f02\u5e38\u7c7b\u578b\u3002\u4f7f\u7528 assertThrows() \u65b9\u6cd5\u6267\u884c\u4e00\u6bb5\u4ee3\u7801\uff0c\u5e76\u9a8c\u8bc1\u662f\u5426\u629b\u51fa\u4e86\u9884\u671f\u7684\u5f02\u5e38\u7c7b\u578b\u3002<\/p>\n

<\/p>\n

\u5982\u4f55\u5728 Java \u4e2d\u4f7f\u7528 JUnit\u6765\u6d4b\u8bd5\u5f02\u5e38\u5904\u7406<\/strong><\/p>\n

\u7b80\u4ecb<\/strong><\/p>\n

\u5728 Java \u6d4b\u8bd5\u4e2d\uff0c\u9a8c\u8bc1\u5f02\u5e38\u5904\u7406\u662f\u786e\u4fdd\u4ee3\u7801\u5065\u58ee\u6027\u548c\u53ef\u9760\u6027\u7684\u5173\u952e\u3002JUnit \u63d0\u4f9b\u4e86\u5f3a\u5927\u7684\u65ad\u8a00\uff0c\u4f7f\u6211\u4eec\u80fd\u591f\u8f7b\u677e\u3001\u5168\u9762\u5730\u6d4b\u8bd5\u5f02\u5e38\u884c\u4e3a\u3002\u672c\u7bc7\u6587\u7ae0\u5c06\u4ecb\u7ecd\u5982\u4f55\u5728 Java \u4e2d\u4f7f\u7528 JUnit \u6765\u6709\u6548\u6d4b\u8bd5\u5f02\u5e38\u5904\u7406\u3002<\/p>\n

\u4f7f\u7528 @Test<\/code> \u6ce8\u89e3<\/strong><\/p>\n

\u6211\u4eec\u4f7f\u7528 @Test<\/code> \u6ce8\u89e3\u6807\u8bb0\u8981\u6d4b\u8bd5\u7684\u65b9\u6cd5\uff0c\u5e76\u5728\u5176\u4e2d\u6267\u884c\u5f02\u5e38\u9a8c\u8bc1\u3002\u8be5\u6ce8\u89e3\u63a5\u53d7\u4e00\u4e2a\u53c2\u6570\uff0c\u7528\u4e8e\u6307\u5b9a\u8981\u6d4b\u8bd5\u7684\u5f02\u5e38\u7c7b\u578b\u3002<\/p>\n

@Test(expected = IllegalArgumentException.class)\npublic void testInvalidInput() {\n    \/\/ Code that throws an IllegalArgumentException\n}<\/pre>\n
\u5982\u679c\u88ab\u6d4b\u8bd5\u7684\u65b9\u6cd5\u629b\u51fa\u4e0e\u9884\u671f\u7684\u5f02\u5e38\u7c7b\u578b\u4e0d\u540c\u7684\u5f02\u5e38\uff0c\u5219\u6d4b\u8bd5\u5c06\u5931\u8d25\u3002<\/p>\n
\u4f7f\u7528 assertThrows()<\/code> \u65b9\u6cd5<\/strong><\/p>\n
assertThrows()<\/code> \u65b9\u6cd5\u63d0\u4f9b\u4e86\u53e6\u4e00\u79cd\u66f4\u7075\u6d3b\u7684\u65b9\u5f0f\u6765\u6d4b\u8bd5\u5f02\u5e38\u5904\u7406\u3002\u5b83\u8fd4\u56de\u4e00\u4e2a Executable<\/code> \u5bf9\u8c61\uff0c\u8be5\u5bf9\u8c61\u53ef\u4ee5\u6267\u884c\u4e00\u6bb5\u53ef\u80fd\u4f1a\u629b\u51fa\u5f02\u5e38\u7684\u4ee3\u7801\u3002<\/p>\n
assertThrows(IllegalArgumentException.class, () -> {\n    \/\/ Code that throws an IllegalArgumentException\n});<\/pre>\n
\u5982\u679c\u6267\u884c\u7684\u4ee3\u7801\u629b\u51fa\u4e0e\u9884\u671f\u5f02\u5e38\u7c7b\u578b\u4e0d\u540c\u7684\u5f02\u5e38\uff0c\u5219\u6d4b\u8bd5\u5c06\u5931\u8d25\u3002<\/p>\n
\u5b9e\u6218\u6848\u4f8b<\/strong><\/p>\n
\u8ba9\u6211\u4eec\u8003\u8651\u4e00\u4e2a Calculator<\/code> \u7c7b\uff0c\u5b83\u6709\u4e00\u4e2a divide()<\/code> \u65b9\u6cd5\uff0c\u7528\u4e8e\u8ba1\u7b97\u4e24\u4e2a\u6570\u5b57\u7684\u5546\u3002\u6211\u4eec\u8981\u6d4b\u8bd5 divide()<\/code> \u65b9\u6cd5\u662f\u5426\u5728\u9664\u6570\u4e3a 0 \u65f6\u629b\u51fa ArithmeticException<\/code>\u3002<\/p>\n
public class Calculator {\n\n    public int divide(int dividend, int divisor) {\n        if (divisor == 0) {\n            throw new ArithmeticException(\"Cannot divide by zero\");\n        }\n        return dividend \/ divisor;\n    }\n}<\/pre>\n
public class CalculatorTest {\n\n    @Test\n    public void testDivideByZero() {\n        \/\/ \u9884\u8ba1 divide() \u65b9\u6cd5\u5728\u9664\u6570\u4e3a 0 \u65f6\u629b\u51fa ArithmeticException\n        assertThrows(ArithmeticException.class, () -> {\n            Calculator calculator = new Calculator();\n            calculator.divide(1, 0);\n        });\n    }\n}<\/pre>\n
\u5728\u4e0a\u9762\u7684\u6d4b\u8bd5\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528 assertThrows()<\/code> \u65b9\u6cd5\u9a8c\u8bc1 divide()<\/code> \u65b9\u6cd5\u662f\u5426\u5728\u9664\u6570\u4e3a 0 \u65f6\u629b\u51fa ArithmeticException<\/code>\u3002\u5982\u679c divide()<\/code> \u65b9\u6cd5\u629b\u51fa\u5176\u4ed6\u5f02\u5e38\u6216\u4e0d\u629b\u51fa\u5f02\u5e38\uff0c\u6d4b\u8bd5\u5c06\u5931\u8d25\u3002<\/p>\n
\u6587\u4e2d\u5173\u4e8e\u5355\u5143\u6d4b\u8bd5,junit\u7684\u77e5\u8bc6\u4ecb\u7ecd\uff0c\u5e0c\u671b\u5bf9\u4f60\u7684\u5b66\u4e60\u6709\u6240\u5e2e\u52a9\uff01\u82e5\u662f\u53d7\u76ca\u532a\u6d45\uff0c\u90a3\u5c31\u52a8\u52a8\u9f20\u6807\u6536\u85cf\u8fd9\u7bc7\u300a\u5982\u4f55\u5728 Java \u4e2d\u4f7f\u7528 JUnit\u6765\u6d4b\u8bd5\u5f02\u5e38\u5904\u7406\uff1f\u300b\u6587\u7ae0\u5427\uff0c\u4e5f\u53ef\u5173\u6ce8\u516c\u4f17\u53f7\u4e86\u89e3\u76f8\u5173\u6280\u672f\u6587\u7ae0\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5982\u4f55\u5728 Java \u4e2d\u4f7f\u7528 JUn...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-202600","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202600","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=202600"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202600\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=202600"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=202600"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=202600"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}