{"id":172,"date":"2022-07-24T13:14:30","date_gmt":"2022-07-24T04:14:30","guid":{"rendered":"https:\/\/sheltie-garage.xyz\/tech\/?p=172"},"modified":"2022-07-24T13:14:32","modified_gmt":"2022-07-24T04:14:32","slug":"junit%e3%81%a8mockito%e3%81%a7%e3%83%a6%e3%83%8b%e3%83%83%e3%83%88%e3%83%86%e3%82%b9%e3%83%88%e3%81%ae%e7%b7%b4%e7%bf%92","status":"publish","type":"post","link":"https:\/\/sheltie-garage.xyz\/tech\/2022\/07\/junit%e3%81%a8mockito%e3%81%a7%e3%83%a6%e3%83%8b%e3%83%83%e3%83%88%e3%83%86%e3%82%b9%e3%83%88%e3%81%ae%e7%b7%b4%e7%bf%92\/","title":{"rendered":"JUnit\u3068Mockito\u3067\u30e6\u30cb\u30c3\u30c8\u30c6\u30b9\u30c8\u306e\u7df4\u7fd2"},"content":{"rendered":"\n

\u65b0\u3057\u3044\u4f1a\u793e\u3067\u306f\u304d\u3061\u3093\u3068\u30e6\u30cb\u30c3\u30c8\u30c6\u30b9\u30c8\u3092\u66f8\u304f\u6587\u5316\u304c\u3042\u3063\u305f\u306e\u3067\u3001\u7df4\u7fd2\u306e\u305f\u3081Mockito\u306e\u5229\u7528\u65b9\u6cd5\u3092\u7df4\u7fd2\u3057\u3066\u3044\u307e\u3057\u305f\u3002
\u4eca\u307e\u3067\u7d4c\u9a13\u3057\u305f\u4f1a\u793e\u3067\u306f\u30e6\u30cb\u30c3\u30c8\u30c6\u30b9\u30c8\u3092\u4f5c\u308b\u6587\u5316\u304c\u306a\u304b\u3063\u305f\u306e\u3067\u3001\u4ed5\u4e8b\u3067\u304b\u306a\u308a\u5358\u4f53\u30c6\u30b9\u30c8\u4f5c\u6210\u306b\u624b\u9593\u53d6\u3063\u3066\u3044\u307e\u3059\u3002
\u5c11\u3057\u3067\u3082\u3053\u306e\u9045\u308c\u3092\u53d6\u308a\u623b\u3057\u305f\u3044\uff01\u3068\u3044\u3046\u3053\u3068\u3082\u3042\u308a\u3001Mockito\u306e\u7df4\u7fd2\u3092\u3057\u3066\u307f\u307e\u3057\u305f<\/p>\n\n\n\n

\u4eca\u56de\u306e\u30d7\u30ed\u30b0\u30e9\u30e0<\/h2>\n\n\n\n

\u4eca\u56de\u306e\u30b5\u30f3\u30d7\u30eb\u30d7\u30ed\u30b0\u30e9\u30e0\u306f\u4ee5\u4e0b\u306b\u306a\u308a\u307e\u3059
https:\/\/github.com\/sheltie-fusafusa\/JUnitMockitoPractice<\/a><\/p>\n\n\n\n

\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u4e0a\u8a18\u30d7\u30ed\u30b0\u30e9\u30e0\u5185\u3067\u500b\u4eba\u7684\u306b\u8a70\u307e\u3063\u305f\u90e8\u5206\u3092\u629c\u7c8b\u3057\u3066\u7d39\u4ecb\u3057\u307e\u3059<\/p>\n\n\n\n

\u305d\u3082\u305d\u3082Mockito\u3068\u306f\uff1f<\/h2>\n\n\n\n

\u4eca\u56de\u59cb\u3081\u3066Mockito\u306b\u89e6\u3063\u305f\u306e\u3067\u3059\u304c\u3001\u305d\u3082\u305d\u3082\u3053\u308c\u304c\u4f55\u306a\u306e\u304b\uff1f\u4f55\u306e\u305f\u3081\u306b\u5fc5\u8981\u306a\u306e\u304b\uff1f\u3082\u308f\u304b\u3089\u306a\u3044\u72b6\u614b\u3067\u3057\u305f\u3002
\u8efd\u304f\u8abf\u3079\u3066\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u7406\u89e3\u3057\u307e\u3057\u305f\u3002<\/p>\n\n\n\n

Mockito\u3068\u306f<\/strong>
\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u30e2\u30c3\u30af\u3092\u7c21\u5358\u306b\u4f5c\u6210\u3059\u308b\u305f\u3081\u306e\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3002Mock\u5316\u3057\u305f\u3044\u30af\u30e9\u30b9\u3092\u6307\u5b9a\u3057\u3066\u3001\u5404\u30e1\u30bd\u30c3\u30c9\u304c\u547c\u3073\u51fa\u3055\u308c\u305f\u3068\u304d\u306e\u623b\u308a\u5024\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u3067\u30c6\u30b9\u30c8\u304c\u884c\u3048\u308b<\/p>\n\n\n\n

\u306a\u305cMock\u5316\u304c\u5fc5\u8981\u306a\u306e\u304b\uff1f<\/strong>
\u30d7\u30ed\u30b0\u30e9\u30e0\u306f\u5358\u4f53\u3067\u306f\u306a\u304f\u3001\u5225\u306e\u30b7\u30b9\u30c6\u30e0\uff08DB\u3084API\uff09\u3084\u30e9\u30a4\u30d6\u30e9\u30ea\u306a\u3069\u306e\u4ed6\u30d1\u30fc\u30c4\u3092\u7d44\u307f\u5408\u308f\u305b\u3066\u4f5c\u6210\u3055\u308c\u308b\u3002\u3042\u308b\u6a5f\u80fd\u306e\u30c6\u30b9\u30c8\u3092\u884c\u304a\u3046\u3068\u3057\u305f\u6642\u3001DB\u306b\u51e6\u7406\u306b\u4f7f\u7528\u3059\u308b\u30c7\u30fc\u30bf\u306e\u767b\u9332\u304c\u7121\u304b\u3063\u305f\u308a\u3001\u9023\u643a\u5148\u306e\u5916\u90e8API\u304c\u672a\u5b8c\u6210\u3060\u3068\u3001\u5f53\u7136\u30c6\u30b9\u30c8\u304c\u884c\u3048\u306a\u3044\u3002\u305d\u3053\u3067DB\u304b\u3089\u5024\u3092\u8fd4\u3059\u51e6\u7406\u3084\u3001\u5916\u90e8API\u3068\u9023\u643a\u3059\u308b\u90e8\u5206\u3092Mock\u5316\u3059\u308b\u3053\u3068\u3067\u30c6\u30b9\u30c8\u306e\u90fd\u5408\u306e\u826f\u3044\u30c7\u30fc\u30bf\u304c\u8fd4\u5374\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u3001\u30c6\u30b9\u30c8\u304c\u884c\u3048\u308b\u3088\u3046\u306b\u306a\u308b<\/p>\n\n\n\n

\u3068\u3001\u7406\u89e3\u3057\u307e\u3057\u305f<\/p>\n\n\n\n

\u30b7\u30f3\u30d7\u30eb\u306a\u30af\u30e9\u30b9\u3067\u3001\u30c6\u30b9\u30c8\u3092\u884c\u3063\u3066\u307f\u308b<\/h2>\n\n\n\n

\u4eca\u56de\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30af\u30e9\u30b9\u3092\u4f5c\u6210\u3057\u307e\u3057\u305f<\/p>\n\n\n\n

package org.example.service;\n\npublic class ExampleService {\n\n    public int plus(int a, int b){\n        return a + b;\n    }\n\n    public int square(int a){\n        return a * a;\n    }\n\n    public int minus(int a, int b){\n        return a - b;\n    }\n\n    public int divide(int a, int b){\n        if(b == 0){\n            return 0;\n        }\n\n        return a \/ b;\n    }\n\n    \/\/ \u8db3\u3057\u7b97\u3057\u305f\u5f8c\u306b2\u4e57\u3059\u308b\n    public int plusSquare(int a, int b){\n\n        int result = plus(a, b);\n        return square(result);\n    }\n}<\/code><\/pre>\n\n\n\n
\u8db3\u3057\u7b97\u3084\u5f15\u304d\u7b97\u3001\u7d2f\u4e57\u3092\u8a08\u7b97\u3059\u308b\u3088\u3046\u306a\u30b7\u30f3\u30d7\u30eb\u306a\u5185\u5bb9\u306e\u30af\u30e9\u30b9\u3067\u3059\u3002<\/p>\n\n\n\n
\u3053\u306e\u30af\u30e9\u30b9\u306b\u5bfe\u3057\u3066\u5358\u4f53\u30c6\u30b9\u30c8\u3092\u8a18\u8ff0\u3059\u308b\u3068\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059<\/p>\n\n\n\n
package org.example.service;\n\nimport org.junit.jupiter.api.Test;\n\nimport static org.junit.jupiter.api.Assertions.assertEquals;\nimport static org.mockito.ArgumentMatchers.any;\nimport static org.mockito.ArgumentMatchers.anyInt;\nimport static org.mockito.Mockito.mock;\nimport static org.mockito.Mockito.when;\n\npublic class ExampleServiceTest {\n\n    @Test\n    public void plusTest(){\n\n        \/\/ \u30d7\u30e9\u30b9\u30e1\u30bd\u30c3\u30c9\u304c\u6b63\u3057\u304f\u52d5\u304f\u3053\u3068\u3092\u78ba\u8a8d\n        ExampleService exampleService = new ExampleService();\n        int result = exampleService.plus(1, 2);\n\n        assertEquals(result, 1 + 2);\n    }\n\n    @Test\n    public void plusSquareTest(){\n\n        \/\/ \u30e2\u30c3\u30af\u6e96\u5099\n        ExampleService exampleServiceMock = mock(ExampleService.class);\n        when(exampleServiceMock.plus(anyInt(), anyInt())).thenReturn(10);\n\n        \/\/ \u4e0a\u8a18\u3067plus\u306eMock\u3092\u4f5c\u6210\u3057\u3001\u5fc5\u305a10\u3092\u8fd4\u5374\u3059\u308b\u3088\u3046\u306b\u8a2d\u5b9a\u3057\u3066\u3044\u308b\u305f\u3081\n        \/\/ \u4ee5\u4e0b\u306e\u51e6\u7406\u3067\u306f2\u3067\u306f\u306a\u304f\u300110\u304c\u8fd4\u5374\u3055\u308c\u308b\n        int result = exampleServiceMock.plus(1,1);\n\n        assertEquals(10, result);\n    }\n}<\/code><\/pre>\n\n\n\n
\u57fa\u672c\u7684\u306a\u30c6\u30b9\u30c8\u65b9\u6cd5\u306f
\u30fb\u30c6\u30b9\u30c8\u3057\u305f\u3044\u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3073\u51fa\u3059
\u30fbassert\u301c\u30e1\u30bd\u30c3\u30c9\u3067\u5024\u3092\u6bd4\u8f03\u3059\u308b
\u306e\u6d41\u308c\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n
plusSquareTest\u30e1\u30bd\u30c3\u30c9\u3067\u5b9f\u969b\u306bMock\u3092\u4f5c\u6210\u3057\u3001plus\u30e1\u30bd\u30c3\u30c9\u3067 10\u3092\u8fd4\u5374\u3059\u308b\u3088\u3046\u306b\u8a2d\u5b9a\u3057\u3066\u3044\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001plus(1,1)\u306e\u7d50\u679c\u306f2\u3067\u306f\u306a\u304f10\u304c\u8fd4\u5374\u3055\u308c\u3001assertEquals(10, result);\u306e\u7d50\u679c\u3001\u30c6\u30b9\u30c8OK\u3068\u3044\u3046\u52d5\u304d\u3068\u306a\u308a\u307e\u3059<\/p>\n\n\n\n
\u554f\u984c\u306fstatic\u30e1\u30bd\u30c3\u30c9\u306e\u30c6\u30b9\u30c8<\/h2>\n\n\n\n
Mockito\u3067\u306fstatic\u30e1\u30bd\u30c3\u30c9\u306e\u30c6\u30b9\u30c8\u30823.4.0\u304b\u3089\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u305f\u3068\u306e\u3053\u3068\u3002
\u4ee5\u4e0b\u306e\u3088\u3046\u306bsutatic\u30e1\u30bd\u30c3\u30c9\u3092\u591a\u6570\u542b\u3080\u30af\u30e9\u30b9\u3092\u4f5c\u6210\u3057\u3001\u4e0a\u8a18\u3068\u540c\u69d8\u306e\u30c6\u30b9\u30c8\u3092\u4f5c\u6210\u3057\u3066\u307f\u307e\u3057\u305f<\/p>\n\n\n\n
package org.example.service;\n\npublic class StaticExampleService {\n\n    public static int plus(int a, int b){\n        return a + b;\n    }\n\n    public static int square(int a){\n        return a * a;\n    }\n\n    public static int minus(int a, int b){\n        return a - b;\n    }\n\n    public static int divide(int a, int b){\n        if(b == 0){\n            return 0;\n        }\n\n        return a \/ b;\n    }\n\n    \/\/ \u8db3\u3057\u7b97\u3057\u305f\u5f8c\u306b2\u4e57\u3059\u308b\n    public static int plusSquare(int a, int b){\n\n        int result = StaticExampleService.plus(a, b);\n        return StaticExampleService.square(result);\n    }\n}\n<\/code><\/pre>\n\n\n\n
\u30c6\u30b9\u30c8\u306f\u3053\u3093\u306a\u611f\u3058\u3067\u3059<\/p>\n\n\n\n
package org.example.service;\n\nimport org.junit.jupiter.api.Test;\nimport org.mockito.MockedStatic;\n\nimport static org.junit.jupiter.api.Assertions.assertEquals;\nimport static org.mockito.ArgumentMatchers.anyInt;\nimport static org.mockito.Mockito.*;\n\npublic class StaticExampleServiceTest {\n\n    @Test\n    public void staticPlusTest(){\n\n        try(MockedStatic<StaticExampleService> mocked = mockStatic(StaticExampleService.class)){\n            \/\/ \u30e2\u30c3\u30af\u306e\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\n            mocked.when(() -> StaticExampleService.plus(anyInt(), anyInt())).thenReturn(3);\n\n            int result = StaticExampleService.plus(10, 20);\n\n            \/\/ plus\u30e1\u30bd\u30c3\u30c9\u306fMock\u5316\u3055\u308c\u3066\u304a\u308a\u3001\u3069\u306e\u3088\u3046\u306a\u5024\u3067\u30823\u3067\u8fd4\u5374\u3059\u308b\u3088\u3046\u306b\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\n            assertEquals(3, result);\n        }\n    }\n\n    @Test\n    public void staticPlusSquareTest(){\n\n        try(MockedStatic<StaticExampleService> mocked = mockStatic(StaticExampleService.class)){\n            \/\/ \u30e2\u30c3\u30af\u306e\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\n            mocked.when(() -> StaticExampleService.plus(anyInt(), anyInt())).thenReturn(3);\n\n            int result = StaticExampleService.plusSquare(2,2);\n\n            \/\/ plus\u30e1\u30bd\u30c3\u30c9\u306fMock\u5316\u3055\u308c\u3066\u304a\u308a\u30013\u304c\u8fd4\u5374\u3055\u308c\u308b\u306e\u30679\u306b\u306a\u308b\u306f\u305a\n            assertEquals(9, result);\n        }\n    }\n}<\/code><\/pre>\n\n\n\n
\u30b9\u30bf\u30c6\u30a3\u30c3\u30af\u30e1\u30bd\u30c3\u30c9\u306e\u5834\u5408\u3001mockStatic\u30e1\u30bd\u30c3\u30c9\u3092\u5229\u7528\u3057\u3066\u30e2\u30c3\u30af\u3092\u4f5c\u6210\u3057\u307e\u3059
\u307e\u305f\u3001try-with-resource\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u3067\u3001mocked.close()\u958b\u653e\u6f0f\u308c\u3092\u9632\u3050\u4e8b\u304c\u3067\u304d\u307e\u3059
\u53c2\u8003\uff1ahttps:\/\/keyno63.hatenablog.com\/entry\/2021\/05\/15\/060156<\/a><\/p>\n\n\n\n
staticPlusTest\u306b\u3064\u3044\u3066\u306f\u554f\u984c\u306a\u304f\u30c6\u30b9\u30c8\u3092\u884c\u3046\u3053\u3068\u304c\u51fa\u6765\u307e\u3057\u305f\u3002<\/p>\n\n\n\n
\u554f\u984c\u306fstaticPlusSquareTest\u3067\u3001\u4e0a\u8a18\u306e\u8a18\u8ff0\u3067\u306f\u6b63\u3057\u304f\u52d5\u304d\u307e\u305b\u3093<\/p>\n\n\n\n
staticPlusSquareTest\u306e\u554f\u984c\u70b9\u3068\u306f<\/h2>\n\n\n\n
static\u30e1\u30bd\u30c3\u30c9\u306e\u4e2d\u3067\u30ed\u30fc\u30ab\u30eb\u5909\u6570\u3092\u5229\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u3001\u30c6\u30b9\u30c8\u304c\u6b63\u3057\u304f\u52d5\u304b\u306a\u3044\u3088\u3046\u3067\u3059<\/p>\n\n\n\n
\"\"<\/figure>\n\n\n\n
\"\"<\/figure>\n\n\n\n
\u4e0a\u8a18\u306e\u901a\u308a\u3001\u30ed\u30fc\u30ab\u30eb\u5909\u6570\u306b\u8a2d\u5b9a\u3055\u308c\u305f\u5024\u304c\u8aad\u307f\u8fbc\u307e\u308c\u305a\u3001plus\u30e1\u30bd\u30c3\u30c9\u306f3\u3092\u8fd4\u5374\u3059\u308b\u3053\u3068\u3092\u671f\u5f85\u3057\u3066Mock\u3092\u69cb\u7bc9\u4e0b\u306b\u3082\u95a2\u308f\u3089\u305a\u30010\u304c\u8fd4\u5374\u3055\u308c\u30c6\u30b9\u30c8\u304c\u5931\u6557\u3057\u307e\u3059\u3002
\u3053\u306e\u3042\u305f\u308a\u306e\u89e3\u6c7a\u6cd5\u3092\u571f\u65e5\u306b\u8abf\u3079\u3066\u307f\u305f\u306e\u3067\u3059\u304c\u3001\u3053\u306e\u3088\u3046\u306b\u52d5\u4f5c\u3059\u308b\u7406\u7531\u3084\u89e3\u6c7a\u6cd5\u306f\u898b\u3064\u304b\u308a\u307e\u305b\u3093\u3067\u3057\u305f\u30fb\u30fb\u30fb<\/p>\n\n\n\n
\u4ee5\u4e0a<\/h2>\n\n\n\n
\u3068\u3044\u3046\u3053\u3068\u3067\u3001JUnit\u3068Mockito\u306e\u5229\u7528\u65b9\u6cd5\u3092\u571f\u65e5\u306b\u8abf\u3079\u3066\u3044\u307e\u3057\u305f\u3002\u3068\u3044\u3046\u304a\u8a71\u3067\u3057\u305f\u3002
\u7d50\u679c\u7684\u306b\u89e3\u6c7a\u51fa\u6765\u305a\u3067\u5fc3\u6b8b\u308a\u306f\u3042\u308a\u307e\u3059\u304c\u3001\u3082\u3046\u3060\u3081\u306a\u306e\u3067\u3053\u3053\u3067\u4e00\u65e6\u6253\u3061\u5207\u308a\u306b\u3057\u307e\u3059\u3002
\u4e0a\u8a18\u306e\u3053\u3068\u304b\u3089\u3001\u57fa\u672c\u7684\u306bstatic\u30e1\u30bd\u30c3\u30c9\u306f\u30e2\u30c3\u30af\u5316\u3057\u306a\u3044\u307b\u3046\u304c\u826f\u3044\u6c17\u304c\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u4f55\u304b\u3057\u3089\u3001\u30e6\u30cb\u30c3\u30c8\u30c6\u30b9\u30c8\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u3092\u77e5\u308a\u305f\u3044\u3068\u3053\u308d\u3067\u3059\u3002<\/p>\n\n\n\n
\u3053\u3063\u305d\u308aStackOverFlow\u3067\u805e\u3044\u3066\u307f\u3088\u3046\u304b\u3057\u3089<\/p>\n\n\n
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\n\t\t\t\t\t\t\t\t\t\u30b9\u30c3\u30ad\u30ea\u308f\u304b\u308bJava\u5165\u9580\u7b2c3\u7248 [ \u4e2d\u5c71\u6e05\u55ac ]<\/a>\t\t\t\t\t\t\t<\/div>\n\t\t\t
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created by Rinker<\/a><\/div>\n\t\t\t\t\t\t\t\t\t\t
\n\t\t\t\t\t\t\t\u00a52,860<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t(2026\/04\/22 04:11:09\u6642\u70b9 \u697d\u5929\u5e02\u5834\u8abf\u3079-<\/span>\u8a73\u7d30)<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t