みんなの質問:他の静的最終クラスを定義した静的最終クラスをモックする方法は?
問題の説明: 最終クラス ApplianceRelationshipUtils.java の単体テスト ケースを記述したい場合、この最終クラス ApplianceRelationshipUtils.java では、常に別の静的クラス ApplianceUtilities.java を呼び出します。したがって、powermock を使用して静的クラス ApplianceUtilities.java を次のようにモックする必要があります。
// mock the class for one method only
PowerMock.mockStaticPartialNice(ApplianceUtilities.class,"getApplianceVersion");
しかし、ApplianceUtilities.java では、次のような多くの静的最終クラスが定義されています。
private static final IMesUtils m_mesUtils = new MesUtils();
private static final IEndpointUtilities m_endpointUtils = new DefaultEndpointUtilities(m_mesUtils);
private static final ICasUtilities m_casUtils = new DefaultCasUtilities(m_endpointUtils);
private static final IHAApplianceUtilities m_haUtils = new HAApplianceUtils(m_endpointUtils, m_casUtils);
したがって、テストケースを実行すると、以下のような例外がスローされます。
java.lang.NoSuchMethodError: com.ibm.usmi.services.updates.util.RestartUtilities.<init>(Lcom/ibm/usmi/services/updates/util/IRcsUtilities;Lcom/ibm/usmi/services/updates/util/MesUtils;Lcom/ibm/usmi/services/updates/util/IUpdateUtils;)V
at com.ibm.vmi.updates.appliance.util.HAApplianceUtils.<init>(HAApplianceUtils.java:222)
at com.ibm.vmi.updates.appliance.util.ApplianceUtilities.<clinit>(ApplianceUtilities.java:89)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at net.sf.cglib.proxy.Enhancer.setCallbacksHelper(Enhancer.java:616)
at net.sf.cglib.proxy.Enhancer.setThreadCallbacks(Enhancer.java:609)
at net.sf.cglib.proxy.Enhancer.registerCallbacks(Enhancer.java:578)
at org.easymock.internal.ClassProxyFactory.createProxy(ClassProxyFactory.java:194)
at org.easymock.internal.MocksControl.createMock(MocksControl.java:60)
at org.easymock.internal.MocksControl.createMock(MocksControl.java:98)
at org.powermock.api.easymock.PowerMock.doCreateMock(PowerMock.java:2214)
at org.powermock.api.easymock.PowerMock.doMock(PowerMock.java:2163)
at org.powermock.api.easymock.PowerMock.createMock(PowerMock.java:76)
at org.powermock.api.easymock.PowerMock.createPartialMock(PowerMock.java:762)
at com.ibm.vmi.updates.appliance.relationship.ApplianceRelationshipUtilsTest.test_validateApplianceReqs(ApplianceRelationshipUtilsTest.java:77)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.junit.internal.runners.TestMethod.invoke(TestMethod.java:66)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.runTestMethod(PowerMockJUnit44RunnerDelegateImpl.java:312)
at org.junit.internal.runners.MethodRoadie$2.run(MethodRoadie.java:86)
at org.junit.internal.runners.MethodRoadie.runBeforesThenTestThenAfters(MethodRoadie.java:94)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.executeTest(PowerMockJUnit44RunnerDelegateImpl.java:296)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit47RunnerDelegateImpl$PowerMockJUnit47MethodRunner.executeTestInSuper(PowerMockJUnit47RunnerDelegateImpl.java:112)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit47RunnerDelegateImpl$PowerMockJUnit47MethodRunner.executeTest(PowerMockJUnit47RunnerDelegateImpl.java:73)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.runBeforesThenTestThenAfters(PowerMockJUnit44RunnerDelegateImpl.java:284)
at org.junit.internal.runners.MethodRoadie.runTest(MethodRoadie.java:84)
at org.junit.internal.runners.MethodRoadie.run(MethodRoadie.java:49)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl.invokeTestMethod(PowerMockJUnit44RunnerDelegateImpl.java:209)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl.runMethods(PowerMockJUnit44RunnerDelegateImpl.java:148)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$1.run(PowerMockJUnit44RunnerDelegateImpl.java:122)
at org.junit.internal.runners.ClassRoadie.runUnprotected(ClassRoadie.java:34)
at org.junit.internal.runners.ClassRoadie.runProtected(ClassRoadie.java:44)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl.run(PowerMockJUnit44RunnerDelegateImpl.java:120)
at org.powermock.modules.junit4.common.internal.impl.JUnit4TestSuiteChunkerImpl.run(JUnit4TestSuiteChunkerImpl.java:102)
at org.powermock.modules.junit4.common.internal.impl.AbstractCommonPowerMockRunner.run(AbstractCommonPowerMockRunner.java:53)
at org.powermock.modules.junit4.PowerMockRunner.run(PowerMockRunner.java:42)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:49)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)