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How to use getArgumentsFrom method of com.tngtech.jgiven.junit.JGivenMethodRule class

Best JGiven code snippet using com.tngtech.jgiven.junit.JGivenMethodRule.getArgumentsFrom

Source:JGivenMethodRule.java

...97    static List<NamedArgument> getNamedArguments( Statement base, FrameworkMethod method, Object target ) {98        AccessibleObject constructorOrMethod = method.getMethod();99        List<Object> arguments = Collections.emptyList();100        if( DATAPROVIDER_FRAMEWORK_METHOD.equals( method.getClass().getCanonicalName() ) ) {101            arguments = getArgumentsFrom( method, "parameters" );102        }103        if( JUNITPARAMS_STATEMENT.equals( base.getClass().getCanonicalName() ) ) {104            arguments = getArgumentsFrom( base, "params" );105        }106        if( isParameterizedTest( target ) ) {107            Constructor<?> constructor = getOnlyConstructor( target.getClass() );108            constructorOrMethod = constructor;109            arguments = getArgumentsFrom( constructor, target );110        }111        return ParameterNameUtil.mapArgumentsWithParameterNames( constructorOrMethod, arguments );112    }113    private static List<Object> getArgumentsFrom( Object object, String fieldName ) {114        Class<?> methodClass = object.getClass();115        try {116            Field field = methodClass.getDeclaredField( fieldName );117            field.setAccessible( true );118            return Arrays.asList( (Object[]) field.get( object ) );119        } catch( NoSuchFieldException e ) {120            log.warn( format( "Could not find field containing test method arguments in '%s'. "121                    + "Probably the internal representation has changed. Consider writing a bug report.",122                methodClass.getSimpleName() ), e );123        } catch( IllegalAccessException e ) {124            log.warn( format( "Not able to access field containing test method arguments in '%s'. "125                    + "Probably the internal representation has changed. Consider writing a bug report.",126                methodClass.getSimpleName() ), e );127        }128        return Collections.emptyList();129    }130    private static boolean isParameterizedTest( Object target ) {131        RunWith runWith = target.getClass().getAnnotation( RunWith.class );132        return runWith != null && Parameterized.class.equals( runWith.value() );133    }134    private static Constructor<?> getOnlyConstructor( Class<?> testClass ) {135        Constructor<?>[] constructors = testClass.getConstructors();136        if( constructors.length != 1 ) {137            log.warn( "Test class can only have one public constructor, "138                    + "see org.junit.runners.Parameterized.TestClassRunnerForParameters.validateConstructor(List<Throwable>)" );139        }140        return constructors[0];141    }142    /**143     * Searches for all arguments of the given {@link Parameterized} test class by retrieving the values of all144     * non-static instance fields and comparing their types with the constructor arguments. The order of resulting145     * parameters corresponds to the order of the constructor argument types (which is equal to order of the provided146     * data of the method annotated with {@link Parameterized}). If the constructor contains multiple arguments of the same147     * type, the order of {@link ReflectionUtil#getAllNonStaticFieldValuesFrom(Class, Object, String)} is used.148     *149     * @param constructor {@link Constructor} from which argument types should be retrieved150     * @param target {@link Parameterized} test instance from which arguments tried to be retrieved151     * @return the determined arguments, never {@code null}152     */153    private static List<Object> getArgumentsFrom( Constructor<?> constructor, Object target ) {154        Class<?> testClass = target.getClass();155        Class<?>[] constructorParamClasses = constructor.getParameterTypes();156        List<Object> fieldValues = ReflectionUtil.getAllNonStaticFieldValuesFrom( testClass, target,157            " Consider writing a bug report." );158        return getTypeMatchingValuesInOrderOf( constructorParamClasses, fieldValues );159    }160    private static List<Object> getTypeMatchingValuesInOrderOf( Class<?>[] expectedClasses, List<Object> values ) {161        List<Object> valuesCopy = Lists.newArrayList( values );162        List<Object> result = new ArrayList<Object>();163        for( Class<?> argumentClass : expectedClasses ) {164            for( Iterator<Object> iterator = valuesCopy.iterator(); iterator.hasNext(); ) {165                Object value = iterator.next();166                if( Primitives.wrap( argumentClass ).isInstance( value ) ) {167                    result.add( value );...

getArgumentsFrom

Using AI Code Generation

1import org.junit.Rule;2import org.junit.Test;3import com.tngtech.jgiven.Stage;4import com.tngtech.jgiven.annotation.ExpectedScenarioState;5import com.tngtech.jgiven.annotation.ProvidedScenarioState;6import com.tngtech.jgiven.junit.JGivenMethodRule;7public class JGivenMethodRuleTest {8    public JGivenMethodRule jGivenMethodRule = new JGivenMethodRule();9    public void a_test_with_arguments() {10        given().an_argument( "hello" );11        when().a_method_is_called();12        then().the_argument_is( "hello" );13    }14    public GivenAnArgument an_argument( String argument ) {15        return new GivenAnArgument().an_argument( argument );16    }17    public WhenAMethodIsCalled a_method_is_called() {18        return new WhenAMethodIsCalled().a_method_is_called();19    }20    public ThenTheArgumentIs the_argument_is( String argument ) {21        return new ThenTheArgumentIs().the_argument_is( argument );22    }23    public static class GivenAnArgument extends Stage<GivenAnArgument> {24        String argument;25        public GivenAnArgument an_argument( String argument ) {26            this.argument = argument;27            return self();28        }29    }30    public static class WhenAMethodIsCalled extends Stage<WhenAMethodIsCalled> {31        String argument;32        public WhenAMethodIsCalled a_method_is_called() {33            return self();34        }35    }36    public static class ThenTheArgumentIs extends Stage<ThenTheArgumentIs> {37        String argument;38        public ThenTheArgumentIs the_argument_is( String argument ) {39            assertThat( this.argument ).isEqualTo( argument );40            return self();41        }42    }43}44import org.junit.Rule;45import org.junit.Test;46import com.tngtech.jgiven.Stage;47import com.tngtech.jgiven.annotation.ExpectedScenarioState;48import com.tngtech.jgiven.annotation.ProvidedScenarioState;49import com.tngtech.jgiven.junit.JGivenMethodRule;50public class JGivenMethodRuleTest {51    public JGivenMethodRule jGivenMethodRule = new JGivenMethodRule();

getArgumentsFrom

Using AI Code Generation

1public JGivenMethodRule jGivenMethodRule = new JGivenMethodRule();2private GivenTestStage givenTestStage;3private WhenTestStage whenTestStage;4private ThenTestStage thenTestStage;5public void test() {6    givenTestStage.some_state();7    whenTestStage.some_action();8    thenTestStage.some_outcome();9}10}

getArgumentsFrom

Using AI Code Generation

1public JGivenMethodRule jGivenMethodRule = new JGivenMethodRule();2public GivenSomeState givenSomeState;3public WhenSomeAction whenSomeAction;4public ThenSomeOutcome thenSomeOutcome;5public void some_test() {6    givenSomeState.some_state();7    whenSomeAction.some_action();8    thenSomeOutcome.some_outcome();9}10public JGivenMethodRule jGivenMethodRule = new JGivenMethodRule();11public GivenSomeState givenSomeState;12public WhenSomeAction whenSomeAction;13public ThenSomeOutcome thenSomeOutcome;14public void some_test() {15    givenSomeState.some_state();16    whenSomeAction.some_action();17    thenSomeOutcome.some_outcome();18}19public class SomeTest extends JGivenTestBase<GivenSomeState, WhenSomeAction, ThenSomeOutcome> {20    public void some_test() {21        given().some_state();22        when().some_action();23        then().some_outcome();24    }25}26public class SomeTest extends JGivenTestBase<GivenSomeState, WhenSomeAction, ThenSomeOutcome> {27    public void some_test() {28        given().some_state();29        when().some_action();30        then().some_outcome();31    }32}33public class SomeTest extends JGivenTestBase<GivenSomeState, WhenSomeAction, ThenSomeOutcome> {34    public void some_test() {35        given().some_state();36        when().some_action();37        then().some_outcome();38    }39}40public class SomeTest extends JGivenTestBase<GivenSomeState, WhenSomeAction, ThenSomeOutcome> {41    public void some_test() {42        given().some_state();43        when().some_action();44        then().some_outcome();45    }46}47public class SomeTest extends JGivenTestBase<GivenSomeState, WhenSomeAction, ThenSomeOutcome> {48    public void some_test() {49        given().some_state();50        when().some_action();51        then().some_outcome();52    }53}

getArgumentsFrom

Using AI Code Generation

1import com.tngtech.jgiven.junit.JGivenMethodRule2import com.tngtech.jgiven.report.model.Word3import org.junit.Rule4import org.junit.Test5class TestWithJGivenMethodRule extends JGivenTestBase {6    public JGivenMethodRule jGivenMethodRule = new JGivenMethodRule()7    def void test() {8        given().an_argument(1)9        when().the_method_is_executed()10        then().the_result_is(2)11    }12    def an_argument(int arg) {13    }14    def the_method_is_executed() {15    }16    def the_result_is(int result) {17    }18    protected List<Word> getArgumentsFrom(TestMethod testMethod) {19        return jGivenMethodRule.getArgumentsFrom(testMethod)20    }21}22import com.tngtech.jgiven.junit.JGivenMethodRule23import com.tngtech.jgiven.report.model.Word24import org.junit.Rule25import org.junit.Test26class TestWithJGivenMethodRule extends JGivenTestBase {27    public JGivenMethodRule jGivenMethodRule = new JGivenMethodRule()28    def void test() {29        given().an_argument(1)30        when().the_method_is_executed()31        then().the_result_is(2)32    }33    def an_argument(int arg) {34    }35    def the_method_is_executed() {36    }37    def the_result_is(int result) {38    }

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