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[英]Mocking constructor and static method from same class with Mockito and Powermock
[英]Suppressing a void static method and a static method in same class with PowerMock
我目前正在嘗試使用PowerMock 1.4.10對一些舊代碼進行一些單元測試,並且我正在嘗試測試一種同時具有靜態void調用和靜態非void調用的方法。 有沒有一種方法可以在抑制靜態void調用的同時模擬靜態非void調用?
@RunWith(PowerMockRunner.class)
@PrepareForTest(ClassUnderTest.class)
public class TestClass {
@Test
public void test() {
MemberModifier.suppress(StaticClass.class.getDeclaredMethod("logRandom"));
PowerMock.mockStatic(StaticClass.class);
expect(StaticClass.isLogOn()).andReturn(true);
PowerMock.replay(StaticClass.class);
ClassUnderTest test = new ClassUnderTest();
test.methodToTest();
assertTrue(test.tested);
PowerMock.verify(StaticClass.class);
}
}
public class ClassUnderTest {
public boolean tested = false;
public void methodToTest() {
if (StaticClass.isLogOn()) {
StaticClass.logRandom();
}
}
}
public class StaticClass {
public static void logRandom() {
System.out.println("Do something");
}
public static boolean isLogOn() {
return (Math.random() > .5);
}
}
但是,當我嘗試執行此操作時,我得到以下stackTrace:
java.lang.IllegalStateException: no last call on a mock available
at org.easymock.EasyMock.getControlForLastCall(EasyMock.java:521)
at org.easymock.EasyMock.expect(EasyMock.java:499)
at TestClass.test(TestClass.java:20)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.junit.internal.runners.TestMethod.invoke(TestMethod.java:68)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.runTestMethod(PowerMockJUnit44RunnerDelegateImpl.java:307)
at org.junit.internal.runners.MethodRoadie$2.run(MethodRoadie.java:88)
at org.junit.internal.runners.MethodRoadie.runBeforesThenTestThenAfters(MethodRoadie.java:96)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.executeTest(PowerMockJUnit44RunnerDelegateImpl.java:294)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.runBeforesThenTestThenAfters(PowerMockJUnit44RunnerDelegateImpl.java:282)
at org.junit.internal.runners.MethodRoadie.runTest(MethodRoadie.java:86)
at org.junit.internal.runners.MethodRoadie.run(MethodRoadie.java:49)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl.invokeTestMethod(PowerMockJUnit44RunnerDelegateImpl.java:207)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl.runMethods(PowerMockJUnit44RunnerDelegateImpl.java:146)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$1.run(PowerMockJUnit44RunnerDelegateImpl.java:120)
at org.junit.internal.runners.ClassRoadie.runUnprotected(ClassRoadie.java:33)
at org.junit.internal.runners.ClassRoadie.runProtected(ClassRoadie.java:45)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl.run(PowerMockJUnit44RunnerDelegateImpl.java:118)
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.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)
有人對如何處理有任何想法嗎?
我已經成功使用PowerMock和Mockito結合使用了稱為PowerMockito的靜態測試。 您可以使用PowerMockito.mockStatic
而不是PowerMock
版本來模擬靜態調用。 完成后,您可以調用Mockito.when
處理該呼叫。
PowerMockito.mockStatic(StaticClass.class);
Mockito.when(StaticClass.isLogOn()).thenReturn(true);
測試運行時,如果達到if (StaticClass.isLogOn()) {
測試執行, if (StaticClass.isLogOn()) {
應介入並返回true,這將logRandom
調用logRandom
的邏輯。 在這里,您可以嘗試使用spy
使其調用實際代碼,或者可以根據需要模擬該logRandom
調用。 您可以在“ Partial Mocking
模擬”下的PowerMocktio頁面上找到有關使用spy
進行模擬的更多信息。
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