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How to use putMethodToStub method of org.powermock.core.MockRepository class

Best Powermock code snippet using org.powermock.core.MockRepository.putMethodToStub

Source:Stubber.java

...24	 * Add a method that should be intercepted and return another value (25	 * <code>returnObject</code>) (i.e. the method is stubbed).26	 */27	public static void stubMethod(Method method, Object returnObject) {28		MockRepository.putMethodToStub(method, returnObject);29	}30	/**31	 * Add a method that should be intercepted and return another value (32	 * <code>returnObject</code>) (i.e. the method is stubbed).33	 */34	public static void stubMethod(Class<?> declaringClass, String methodName, Object returnObject) {35		if (declaringClass == null) {36			throw new IllegalArgumentException("declaringClass cannot be null");37		}38		if (methodName == null || methodName.length() == 0) {39			throw new IllegalArgumentException("methodName cannot be empty");40		}41		Method[] methods = Whitebox.getMethods(declaringClass, methodName);42		if (methods.length == 0) {43			throw new MethodNotFoundException(String.format("Couldn't find a method with name %s in the class hierarchy of %s", methodName,44					declaringClass.getName()));45		} else if (methods.length > 1) {46			throw new TooManyMethodsFoundException(String.format("Found %d methods with name %s in the class hierarchy of %s.", methods.length,47					methodName, declaringClass.getName()));48		}49		MockRepository.putMethodToStub(methods[0], returnObject);50	}51}...

putMethodToStub

Using AI Code Generation

1import org.powermock.core.MockRepository;2import org.powermock.core.classloader.annotations.PrepareForTest;3import org.powermock.modules.junit4.PowerMockRunner;4import org.powermock.modules.junit4.PowerMockRunnerDelegate;5import org.powermock.reflect.Whitebox;6import org.powermock.reflect.exceptions.ConstructorNotFoundException;7import org.powermock.reflect.exceptions.FieldNotFoundException;8import org.powermock.reflect.exceptions.MethodNotFoundException;9import org.powermock.reflect.exceptions.TooManyMethodsFoundException;10import org.powermock.reflect.internal.WhiteboxImpl;11import org.powermock.reflect.internal.WhiteboxImpl.ConstructorWrapper;12import org.powermock.reflect.internal.WhiteboxImpl.MethodWrapper;13import org.powermock.reflect.internal.WhiteboxImpl.StaticConstructorWrapper;14import org.powermock.reflect.internal.WhiteboxImpl.StaticMethodWrapper;15import org.powermock.reflect.internal.WhiteboxImpl.StaticFieldWrapper;16import org.powermock.reflect.internal.WhiteboxImpl.FieldWrapper;17import org.powermock.reflect.internal.WhiteboxImpl.ConstructorWrapper;18import org.powermock.reflect.internal.WhiteboxImpl.StaticConstructorWrapper;19import org.powermock.reflect.internal.WhiteboxImpl.StaticMethodWrapper;20import org.powermock.reflect.internal.WhiteboxImpl.StaticFieldWrapper;21import org.powermock.reflect.internal.WhiteboxImpl.FieldWrapper;22import org.powermock.reflect.internal.WhiteboxImpl.ConstructorWrapper;23import org.powermock.reflect.internal.WhiteboxImpl.StaticConstructorWrapper;24import org.powermock.reflect.internal.WhiteboxImpl.StaticMethodWrapper;25import org.powermock.reflect.internal.WhiteboxImpl.StaticFieldWrapper;26import org.powermock.reflect.internal.WhiteboxImpl.FieldWrapper;27import org.powermock.reflect.internal.WhiteboxImpl.ConstructorWrapper;28import org.powermock.reflect.internal.WhiteboxImpl.StaticConstructorWrapper;29import org.powermock.reflect.internal.WhiteboxImpl.StaticMethodWrapper;30import org.powermock.reflect.internal.WhiteboxImpl.StaticFieldWrapper;31import org.powermock.reflect.internal.WhiteboxImpl.FieldWrapper;32import org.powermock.reflect.internal.WhiteboxImpl.ConstructorWrapper;33import org.powermock.reflect.internal.WhiteboxImpl.StaticConstructorWrapper;34import org.powermock.reflect.internal.WhiteboxImpl.StaticMethodWrapper;35import org.powermock.reflect.internal.WhiteboxImpl.StaticFieldWrapper;36import org.powermock.reflect.internal.WhiteboxImpl.FieldWrapper;37import org.powermock.reflect.internal.WhiteboxImpl.ConstructorWrapper;38import org.powermock.reflect.internal.WhiteboxImpl.StaticConstructorWrapper;39import org.powermock.reflect.internal.WhiteboxImpl.StaticMethodWrapper;40import org.powermock.reflect.internal.WhiteboxImpl.StaticFieldWrapper;

putMethodToStub

Using AI Code Generation

1public class PutMethodToStubTest {2    public void testPutMethodToStub() throws Exception {3        final Foo foo = PowerMockito.mock(Foo.class);4        PowerMockito.doReturn("Hello world!").when(foo, "sayHello");5        final String result = foo.sayHello();6        Assert.assertEquals("Hello world!", result);7    }8    public static class Foo {9        public String sayHello() {10            return "Hello!";11        }12    }13}14We can also use PowerMockito.when() method to stub the method. The following code is an example of stubbing the method using PowerMockito.when() method:15public class WhenMethodToStubTest {16    public void testWhenMethodToStub() throws Exception {17        final Foo foo = PowerMockito.mock(Foo.class);18        PowerMockito.when(foo.sayHello()).thenReturn("Hello world!");19        final String result = foo.sayHello();20        Assert.assertEquals("Hello world!", result);21    }22    public static class Foo {23        public String sayHello() {24            return "Hello!";25        }26    }27}28We can also use PowerMockito.doAnswer() method to stub the method. The following code is an example of stubbing the method using PowerMockito.doAnswer() method:29public class DoAnswerMethodToStubTest {30    public void testDoAnswerMethodToStub() throws Exception {31        final Foo foo = PowerMockito.mock(Foo.class);32        PowerMockito.doAnswer(new Answer<String>() {33            public String answer(final InvocationOnMock invocation)

putMethodToStub

Using AI Code Generation

1public class StubbingTest {2    public void testStubbing() throws Exception {3        final MyService myService = PowerMockito.mock(MyService.class);4        PowerMockito.doReturn("Hello World!").when(myService).doSomething();5        Assert.assertEquals("Hello World!", myService.doSomething());6    }7}8public class MyService {9    public static String doSomething() {10        return MyUtil.doSomething();11    }12}13public class MyUtil {14    public static String doSomething() {15        return "Hello World!";16    }17}18import org.junit.Assert;19import org.junit.Test;20import org.powermock.api.mockito.PowerMockito;21import org.powermock.core.classloader.annotations.PrepareForTest;22@PrepareForTest(MyUtil.class)23public class StubbingTest {24    public void testMockingStaticMethod() throws Exception {25        PowerMockito.mockStatic(MyUtil.class);26        PowerMockito.when(MyUtil.doSomething()).thenReturn("Hello World!");27        Assert.assertEquals("Hello World!", MyService.doSomething());28    }29}30We have mocked the doSomething() method of MyUtil class using mockStatic() method of PowerMock

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