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 Github

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...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 );...

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getArgumentsFrom

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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();

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getArgumentsFrom

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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}

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getArgumentsFrom

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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}

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getArgumentsFrom

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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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