Best Mockito code snippet using org.mockitousage.matchers.CustomMatcherDoesYieldCCETest.should_allow_assertions_on_captured_argument
should_allow_assertions_on_captured_argument
Using AI Code Generation
1package org.mockitousage.matchers;2import org.junit.Test;3import org.mockito.ArgumentMatcher;4import org.mockito.exceptions.verification.junit.ArgumentsAreDifferent;5import org.mockitousage.IMethods;6import org.mockitoutil.TestBase;7import static org.mockito.Mockito.*;8public class CustomMatcherDoesYieldCCETest extends TestBase {9 public void should_allow_assertions_on_captured_argument() {10 IMethods mock = mock(IMethods.class);11 when(mock.simpleMethod(anyString())).thenReturn("foo");12 mock.simpleMethod("foo");13 try {14 verify(mock).simpleMethod(argThat(new ArgumentMatcher<String>() {15 public boolean matches(Object argument) {16 assertEquals("foo", argument);17 return true;18 }19 }));20 } catch (ArgumentsAreDifferent e) {21 fail("Should not throw an exception");22 }23 }24}25package org.mockitousage.matchers;26import org.junit.Test;27import org.mockito.ArgumentCaptor;28import org.mockito.ArgumentMatcher;29import org.mockito.exceptions.verification.junit.ArgumentsAreDifferent;30import org.mockitousage.IMethods;31import org.mockitoutil.TestBase;32import static org.mockito.Mockito.*;33public class CustomMatcherDoesYieldCCETest extends TestBase {34 public void should_allow_assertions_on_captured_argument() {35 IMethods mock = mock(IMethods.class);36 when(mock.simpleMethod(anyString())).thenReturn("foo");37 mock.simpleMethod("foo");38 try {39 ArgumentCaptor<String> captor = ArgumentCaptor.forClass(String.class);40 verify(mock).simpleMethod(captor.capture());41 assertEquals("foo", captor.getValue());42 } catch (ArgumentsAreDifferent e) {43 fail("Should not throw an exception");44 }45 }46}
should_allow_assertions_on_captured_argument
Using AI Code Generation
1package org.mockitousage.matchers;2import org.junit.Test;3import org.mockito.ArgumentCaptor;4import org.mockito.ArgumentMatcher;5import org.mockitousage.IMethods;6import org.mockitoutil.TestBase;7import static org.junit.Assert.*;8import static org.mockito.Mockito.*;9public class CustomMatcherDoesYieldCCETest extends TestBase {10 public void should_allow_assertions_on_captured_argument() {11 IMethods mock = mock(IMethods.class);12 ArgumentCaptor<CustomArgument> captor = ArgumentCaptor.forClass(CustomArgument.class);13 when(mock.oneArg(any(CustomArgument.class))).thenReturn("foo");14 mock.oneArg(new CustomArgument("bar"));15 verify(mock).oneArg(captor.capture());16 CustomArgument argument = captor.getValue();17 assertEquals("bar", argument.value);18 }19 public static class CustomArgument {20 private final String value;21 public CustomArgument(String value) {22 this.value = value;23 }24 }25}26package org.mockitousage.matchers;27import org.junit.Test;28import org.mockito.ArgumentCaptor;29import org.mockito.ArgumentMatcher;30import org.mockitousage.IMethods;31import org.mockitoutil.TestBase;32import static org.junit.Assert.*;33import static org.mockito.Mockito.*;34public class CustomMatcherDoesYieldCCETest extends TestBase {35 public void should_allow_assertions_on_captured_argument() {36 IMethods mock = mock(IMethods.class);37 ArgumentCaptor<CustomArgument> captor = ArgumentCaptor.forClass(CustomArgument.class);38 when(mock.oneArg(any(CustomArgument.class))).thenReturn("foo");39 mock.oneArg(new CustomArgument("bar"));40 verify(mock).oneArg(captor.capture());41 CustomArgument argument = captor.getValue();42 assertEquals("bar", argument.value);43 }44 public static class CustomArgument {45 private final String value;46 public CustomArgument(String value) {47 this.value = value;48 }49 }50}
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I wanted to do the same thing, and eventually accomplished it by using the Mockito "spy" function, which wraps a real object with a mock object. All calls to the mock object get forwarded to the real object, except those you are trying to mock. For example:
ObjectMapper om = Mockito.spy(new ObjectMapper());
Mockito.when( om.writeValueAsString(ErrorObject.class)).thenThrow(new JsonProcessingException("") {});
All usages of om
will be handled by the underlying ObjectMapper instance until an instance of ErrorObject
gets passed in, at which point the JsonProcessingException
will be thrown.
The newJsonProcessingException
is created as an anonymous class, as it is a protected class and only a sub-class can be instantiated.
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