How to use failIfReturnTypeIsNotNull method of org.jmock.api.Invocation class

Best Jmock-library code snippet using org.jmock.api.Invocation.failIfReturnTypeIsNotNull

Source:Invocation.java Github

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...90 }91 public void checkReturnTypeCompatibility(final Object value) {92 Class<?> returnType = invokedMethod.getReturnType();93 if (returnType == void.class) {94 failIfReturnTypeIsNotNull(value);95 }96 else if (value == null) {97 failIfReturnTypeIsPrimitive();98 }99 else {100 Class<?> valueType = value.getClass();101 if (!isCompatible(returnType, valueType)) {102 reportTypeError(returnType, valueType);103 }104 }105 }106 private boolean isCompatible(Class<?> returnType, Class<?> valueType) {107 if (returnType.isPrimitive()) {108 // The reflection API doesn't reflect Java's auto-boxing.109 return isBoxedType(returnType, valueType);110 }111 return returnType.isAssignableFrom(valueType);112 }113 private boolean isBoxedType(Class<?> primitiveType, Class<?> referenceType) {114 return BOX_TYPES.get(primitiveType) == referenceType;115 }116 private void failIfReturnTypeIsNotNull(final Object result) {117 if (result != null) {118 throw new IllegalStateException("tried to return a value from a void method: " + result);119 }120 }121 private void failIfReturnTypeIsPrimitive() {122 Class<?> returnType = invokedMethod.getReturnType();123 if (returnType.isPrimitive()) {124 throw new IllegalStateException(125 "tried to return null value from method returning " + returnType.getName());126 }127 }128 129 private void reportTypeError(Class<?> returnType, Class<?> valueType) {130 throw new IllegalStateException(...

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failIfReturnTypeIsNotNull

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1public class MockTest {2 public void testMock() {3 Mockery context = new Mockery();4 final IMethods mock = context.mock(IMethods.class);5 context.checking(new Expectations() {6 {7 allowing(mock).returnNull();8 will(returnValue(null));9 allowing(mock).returnString();10 will(returnValue("Hello"));11 }12 });13 assertNull(mock.returnNull());14 assertNotNull(mock.returnString());15 }16}

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