How to use discoverDeepMockingOfGenerics method of org.mockitousage.bugs.deepstubs.DeepStubFailingWhenGenericNestedAsRawTypeTest class

Best Mockito code snippet using org.mockitousage.bugs.deepstubs.DeepStubFailingWhenGenericNestedAsRawTypeTest.discoverDeepMockingOfGenerics

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...15 interface MyClass3 {16 String returnSomething();17 }18 @Test19 public void discoverDeepMockingOfGenerics() {20 DeepStubFailingWhenGenericNestedAsRawTypeTest.MyClass1 myMock1 = Mockito.mock(DeepStubFailingWhenGenericNestedAsRawTypeTest.MyClass1.class, Mockito.RETURNS_DEEP_STUBS);21 Mockito.when(myMock1.getNested().getNested().returnSomething()).thenReturn("Hello World.");22 }23}...

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1import org.junit.Test2import org.mockito.Mockito3import org.mockito.Mockito.mock4import org.mockito.Mockito.verify5import org.mockitousage.IMethods6import org.mockitoutil.TestBase7class DeepStubFailingWhenGenericNestedAsRawTypeTest : TestBase() {8 fun shouldAllowDiscoveringDeepMockingOfGenerics() {9 val mock = mock(IMethods::class.java)10 val mocked = discoverDeepMockingOfGenerics(mock)11 verify(mocked).simpleMethod(1)12 }13 private fun discoverDeepMockingOfGenerics(mock: IMethods): IMethods {14 return Mockito.`when`(mock.simpleMethod(1)).thenReturn(mock).getMock()15 }16}17import org.junit.Test18import org.mockito.Mockito19import org.mockito.Mockito.mock20import org.mockito.Mockito.verify21import org.mockitousage.IMethods22import org.mockitoutil.TestBase23class DeepStubFailingWhenGenericNestedAsRawTypeTest : TestBase() {24 fun shouldAllowDiscoveringDeepMockingOfGenerics() {25 val mock = mock(IMethods::class.java)26 val mocked = discoverDeepMockingOfGenerics(mock)27 verify(mocked).simpleMethod(1)28 }29 private fun discoverDeepMockingOfGenerics(mock: IMethods): IMethods {30 return Mockito.`when`(mock.simpleMethod(1)).thenReturn(mock).getMock()31 }32}33import org.junit.Test34import org.mockito.Mockito35import org.mockito.Mockito.mock36import org.mockito.Mockito.verify37import org.mockitousage.IMethods38import org.mockitoutil.TestBase39class DeepStubFailingWhenGenericNestedAsRawTypeTest : TestBase() {40 fun shouldAllowDiscoveringDeepMockingOfGenerics() {41 val mock = mock(IMethods::class.java)42 val mocked = discoverDeepMockingOfGenerics(mock)43 verify(mocked).simpleMethod(1)44 }45 private fun discoverDeepMockingOfGenerics(mock: IMethods): IMethods {

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1public class DeepStubFailingWhenGenericNestedAsRawTypeTest {2 public void shouldStubGenericNestedAsRawType() {3 DeepStubFailingWhenGenericNestedAsRawTypeTest test = mock(DeepStubFailingWhenGenericNestedAsRawTypeTest.class, withSettings().useConstructor().defaultAnswer(CALLS_REAL_METHODS));4 test.discoverDeepMockingOfGenerics();5 }6}7public class DeepStubFailingWhenGenericNestedAsRawTypeTest {8 public void shouldStubGenericNestedAsRawType() {9 DeepStubFailingWhenGenericNestedAsRawTypeTest test = mock(DeepStubFailingWhenGenericNestedAsRawTypeTest.class, withSettings().useConstructor().defaultAnswer(CALLS_REAL_METHODS));10 test.discoverDeepMockingOfGenerics();11 }12}

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1import java.util.List2import org.junit.Test3import org.mockito.Mockito._4import org.mockito.exceptions.misusing.PotentialStubbingProblem5import org.mockito.internal.util.MockUtil6import org.mockitoutil.TestBase7class DeepStubFailingWhenGenericNestedAsRawTypeTest extends TestBase {8 def shouldAllowDeepStubbingWithGenerics() {9 when(list.get(0)).thenReturn("foo")10 assertEquals("foo", list.get(0))11 }12 def shouldAllowDeepStubbingWithGenericsAndAnswer() {13 when(list.get(0)).thenAnswer { _ => "foo" }14 assertEquals("foo", list.get(0))15 }16 def shouldAllowDeepStubbingWithGenericsAndDoReturn() {17 doReturn("foo").when(list).get(0)18 assertEquals("foo", list.get(0))19 }20 def shouldAllowDeepStubbingWithGenericsAndDoAnswer() {21 doAnswer { _ => "foo" }.when(list).get(0)22 assertEquals("foo", list.get(0))23 }24 def shouldAllowDeepStubbingWithGenericsAndDoNothing() {25 doNothing.when(list).get(0)26 assertNull(list.get(0))27 }28 def shouldAllowDeepStubbingWithGenericsAndDoThrow() {29 doThrow(new RuntimeException("foo")).when(list

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Questions
Discussion

Mocking java object for unit test

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mock instance is null after @Mock annotation

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Mockito How to mock and assert a thrown exception?

Try Mockito and you will love it!

You can have a look of this library in this blog post, showing 6 simple examples of Mockito usage.

A short example:

@Test
public void iteratorWillReturnHelloWorld(){
    //arrange
    Iterator i = mock(Iterator.class);
    when(i.next()).thenReturn("Hello").thenReturn("World");
    //act
    String result = i.next() + " " + i.next();
    //assert
    assertEquals("Hello World", result);
}

Edit regarding your requirements:

It seems that Mockito runs quite well on Java 1.4 and JUnit 3, as stated in this blog post.

The same example as above, but for Java 1.4:

public void testIteratorWillReturnHelloWorld(){
    //arrange
    Iterator i = Mockito.mock(Iterator.class);
    Mockito.when(i.next()).thenReturn("Hello").thenReturn("World");
    //act
    String result = i.next() + " " + i.next();
    //assert
    assertEquals("Hello World", result);
}
https://stackoverflow.com/questions/1635454/mocking-java-object-for-unit-test

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