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How to use fails_fast_when_stubbing_invoked_with_different_argument method of org.mockitousage.junitrule.StrictJUnitRuleTest class

Best Mockito code snippet using org.mockitousage.junitrule.StrictJUnitRuleTest.fails_fast_when_stubbing_invoked_with_different_argument

Source:StrictJUnitRuleTest.java

...58        //when59        when(mock.simpleMethod(10)).thenReturn("10");60        when(mock.simpleMethod(20)).thenReturn("20");61    }62    @Test public void fails_fast_when_stubbing_invoked_with_different_argument() throws Throwable {63        //expect64        rule.expectFailure(new SafeJUnitRule.FailureAssert() {65            public void doAssert(Throwable t) {66                Assertions.assertThat(t).isInstanceOf(PotentialStubbingProblem.class);67                assertEquals(filterLineNo("\n" +68                                "Strict stubbing argument mismatch. Please check:\n" +69                                " - this invocation of 'simpleMethod' method:\n" +70                                "    mock.simpleMethod(15);\n" +71                                "    -> at org.mockitousage.junitrule.StrictJUnitRuleTest.fails_fast_when_stubbing_invoked_with_different_argument(StrictJUnitRuleTest.java:0)\n" +72                                " - has following stubbing(s) with different arguments:\n" +73                                "    1. mock.simpleMethod(20);\n" +74                                "      -> at org.mockitousage.junitrule.StrictJUnitRuleTest.fails_fast_when_stubbing_invoked_with_different_argument(StrictJUnitRuleTest.java:0)\n" +75                                "    2. mock.simpleMethod(30);\n" +76                                "      -> at org.mockitousage.junitrule.StrictJUnitRuleTest.fails_fast_when_stubbing_invoked_with_different_argument(StrictJUnitRuleTest.java:0)\n" +77                                "Typically, stubbing argument mismatch indicates user mistake when writing tests.\n" +78                                "Mockito fails early so that you can debug potential problem easily.\n" +79                                "However, there are legit scenarios when this exception generates false negative signal:\n" +80                                "  - stubbing the same method multiple times using 'given().will()' or 'when().then()' API\n" +81                                "    Please use 'will().given()' or 'doReturn().when()' API for stubbing.\n" +82                                "  - stubbed method is intentionally invoked with different arguments by code under test\n" +83                                "    Please use 'default' or 'silent' JUnit Rule.\n" +84                                "For more information see javadoc for PotentialStubbingProblem class."),85                        filterLineNo(t.getMessage()));86            }87        });88        //when stubbings in the test code:89        willReturn("10").given(mock).simpleMethod(10) ;  //used90        willReturn("20").given(mock).simpleMethod(20) ;  //unused...

fails_fast_when_stubbing_invoked_with_different_argument

Using AI Code Generation

1import org.junit.Rule;2import org.junit.Test;3import org.junit.rules.ExpectedException;4import org.mockito.InOrder;5import org.mockito.Mock;6import org.mockito.junit.MockitoJUnit;7import org.mockito.junit.MockitoRule;8import org.mockitousage.IMethods;9import org.mockitoutil.TestBase;10import static org.mockito.Mockito.*;11public class StrictJUnitRuleTest extends TestBase {12    @Rule public MockitoRule mockito = MockitoJUnit.rule().strictness(Strictness.STRICT_STUBS);13    @Rule public ExpectedException exception = ExpectedException.none();14    @Mock IMethods mock;15    public void should_fail_when_stubbing_invoked_with_different_argument() {16        when(mock.simpleMethod(1)).thenReturn("one");17        mock.simpleMethod(2);18        failsFastWhenStubbingInvokedWithDifferentArgument();19    }20    public void should_fail_when_stubbing_invoked_with_different_argument_in_order() {21        InOrder inOrder = inOrder(mock);22        inOrder.verify(mock).simpleMethod(2);23        inOrder.verify(mock).simpleMethod(1);24        failsFastWhenStubbingInvokedWithDifferentArgument();25    }26    private void failsFastWhenStubbingInvokedWithDifferentArgument() {27        when(mock.simpleMethod(2)).thenReturn("two");28        exception.expectMessage("You have a different argument" +29                " passed to the same mock (see javadoc for MockitoHint):");30        exception.expectMessage("mock.simpleMethod(1)");31        exception.expectMessage("mock.simpleMethod(2)");32        exception.expectMessage("You might be accidentally verifying or stubbing with argument that is different from actual method call argument.");33        exception.expectMessage("If you're sure you're not confused, then you may disable this strictness by configuring Strictness.LENIENT.");34    }35}

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