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How to use TestRule method of com.tngtech.jgiven.BeforeAfterTestStage class

Best JGiven code snippet using com.tngtech.jgiven.BeforeAfterTestStage.TestRule

Source:ScenarioRuleTest.java

...8    public void testBeforeAndAfterIsCalled() throws Throwable {9        getScenario().setModel( new ReportModel() );10        getScenario().startScenario( "Some Scenario" );11        BeforeAfterTestStage<?> steps = given().something();12        TestRule rule = steps.rule;13        assertThat( rule.beforeCalled ).isEqualTo( 1 );14        assertThat( steps.beforeCalled ).isEqualTo( 1 );15        when();16        then();17        assertThat( rule.afterCalled ).isEqualTo( 0 );18        assertThat( steps.afterCalled ).isEqualTo( 0 );19        getScenario().finished();20        assertThat( rule.beforeCalled ).isEqualTo( 1 );21        assertThat( rule.afterCalled ).isEqualTo( 1 );22        assertThat( steps.beforeCalled ).isEqualTo( 1 );23        assertThat( steps.afterCalled ).isEqualTo( 1 );24    }25    @Test26    public void methods_annotated_with_AfterStage_are_called() {27        getScenario().startScenario( "methods_annotated_with_AfterStage_are_called" );28        given().something();29        when().something_happens();30        assertThat( getScenario().getWhenStage().afterStageCalled ).as( "afterStage has not been called" ).isEqualTo( 0 );31        assertThat( getScenario().getGivenStage().afterStageCalled ).as( "afterStage has been called" ).isEqualTo( 1 );32    }33    @Test34    public void afterStage_methods_are_only_invoked_once() {35        getScenario().startScenario( "methods_annotated_with_AfterStage_are_called_only_once" );36        given().something();37        when().something_happens();38        given().something();39        when().something_happens();40        assertThat( getScenario().getGivenStage().afterStageCalled ).as( "afterStage has been called" ).isEqualTo( 1 );41    }42    @Test43    public void whenExceptionThrownInStepThenAfterMethodsAreExecuted() {44        getScenario().startScenario( "some description" );45        BeforeAfterTestStage<?> steps = given();46        try {47            when().an_exception_is_thrown();48        } catch( Exception e ) {49            assertThat( steps.rule.afterCalled ).isEqualTo( 1 );50            assertThat( steps.afterCalled ).isEqualTo( 1 );51        }52    }53    @Test54    public void whenExceptionThrownInBeforeOfRuleThenAfterMethodIsStillCalled() {55        ExceptionStep steps = getScenario().addStage( ExceptionStep.class );56        try {57            getScenario().startScenario( "some description" );58            steps.given().something();59        } catch( Exception e ) {60            TestRule rule = steps.exceptionRule;61            assertThat( rule.beforeCalled ).isEqualTo( 1 );62            assertThat( rule.afterCalled ).isEqualTo( 1 );63            assertThat( steps.beforeCalled ).isEqualTo( 0 );64            assertThat( steps.afterCalled ).isEqualTo( 0 );65        }66    }67    static class ExceptionStep extends BeforeAfterTestStage<ExceptionStep> {68        @ScenarioRule69        BeforeExceptionRule exceptionRule = new BeforeExceptionRule();70    }71    static class BeforeExceptionRule extends TestRule {72        @Override73        void before() {74            super.before();75            throw new RuntimeException();76        }77    }78    public static class TestRule {79        public int beforeCalled;80        public int afterCalled;81        void before() {82            beforeCalled++;83        }84        void after() {85            afterCalled++;86        }87    }88}...

Source:BeforeAfterTestStage.java

1package com.tngtech.jgiven;2import com.tngtech.jgiven.ScenarioRuleTest.TestRule;3import com.tngtech.jgiven.annotation.AfterScenario;4import com.tngtech.jgiven.annotation.AfterStage;5import com.tngtech.jgiven.annotation.BeforeScenario;6import com.tngtech.jgiven.annotation.ScenarioRule;7public class BeforeAfterTestStage<SELF extends BeforeAfterTestStage<?>> extends Stage<SELF> {8    @ScenarioRule9    public TestRule rule = new TestRule();10    public int beforeCalled;11    public int afterCalled;12    public int afterStageCalled;13    public SELF something() {14        return self();15    }16    @AfterStage17    void someAfterStageMethod() {18        afterStageCalled++;19    }20    @BeforeScenario21    void someBeforeMethod() {22        beforeCalled++;23    }...

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