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How to use JGivenUserException method of com.tngtech.jgiven.exception.JGivenUserException class

Best JGiven code snippet using com.tngtech.jgiven.exception.JGivenUserException.JGivenUserException

Source:ReflectionUtil.java

...3import com.google.common.base.Throwables;4import com.google.common.collect.Lists;5import com.tngtech.jgiven.exception.JGivenExecutionException;6import com.tngtech.jgiven.exception.JGivenInjectionException;7import com.tngtech.jgiven.exception.JGivenUserException;8import org.slf4j.Logger;9import org.slf4j.LoggerFactory;10import java.lang.annotation.Annotation;11import java.lang.reflect.AccessibleObject;12import java.lang.reflect.Constructor;13import java.lang.reflect.Field;14import java.lang.reflect.InvocationTargetException;15import java.lang.reflect.Method;16import java.lang.reflect.Modifier;17import java.util.Arrays;18import java.util.List;19import java.util.Optional;20import java.util.stream.Collectors;21import java.util.stream.StreamSupport;22import static java.lang.String.format;23public class ReflectionUtil {24    private static Logger log = LoggerFactory.getLogger( ReflectionUtil.class );25    /**26     * Iterates over all fields of the given class and all its super classes27     * and calls action.act() for the fields that are annotated with the given annotation.28     */29    public static void forEachField( final Object object, Class<?> clazz, final FieldPredicate predicate, final FieldAction action ){30        forEachSuperClass( clazz, clazzAction -> {31            for( Field field : clazzAction.getDeclaredFields() ) {32                if( predicate.isTrue( field ) ) {33                    action.act( object, field );34                }35            }36        } );37    }38    /**39     * Iterates over all methods of the given class and all its super classes40     * and calls action.act() for the methods that are annotated with the given annotation.41     */42    public static void forEachMethod( final Object object, Class<?> clazz, final Class<? extends Annotation> annotation,43            final MethodAction action ){44        forEachSuperClass( clazz, clazzAction -> {45            for( Method method : clazzAction.getDeclaredMethods() ) {46                if( method.isAnnotationPresent( annotation ) ) {47                    action.act( object, method );48                }49            }50        } );51    }52    /**53     * Iterates over all super classes of the given class (including the class itself)54     * and calls action.act() for these classes.55     */56    public static void forEachSuperClass( Class<?> clazz, ClassAction action ){57        try {58            action.act( clazz );59            Class<?> superclass = clazz.getSuperclass();60            if( superclass != null ) {61                forEachSuperClass( superclass, action );62            }63        } catch( Exception e ) {64            throw Throwables.propagate( e );65        }66    }67    public static FieldPredicate hasAtLeastOneAnnotation( final Class<? extends Annotation>... annotation ){68        return field -> {69            for( Class<? extends Annotation> clazz : annotation ) {70                if( field.isAnnotationPresent( clazz ) ) {71                    return true;72                }73            }74            return false;75        };76    }77    public static FieldPredicate allFields(){78        return field -> true;79    }80    public static FieldPredicate nonStaticField(){81        return field -> !Modifier.isStatic( field.getModifiers() );82    }83    public static boolean hasConstructor( Class<?> type, Class<?>... parameterTypes ){84        try {85            type.getDeclaredConstructor( parameterTypes );86            return true;87        } catch( NoSuchMethodException e ) {88            return false;89        }90    }91    public interface FieldPredicate {92        boolean isTrue( Field field ) throws Exception;93    }94    public interface ClassAction {95        void act( Class<?> clazz ) throws Exception;96    }97    public interface FieldAction {98        void act( Object object, Field field ) throws Exception;99    }100    public interface MethodAction {101        void act( Object object, Method method ) throws Exception;102    }103    public static Optional<Method> findMethodTransitively( Class<?> clazz, String methodName ){104        if( clazz == null ) {105            return Optional.empty();106        }107        try {108            return Optional.of( clazz.getDeclaredMethod( methodName ) );109        } catch( NoSuchMethodException e ) {110            return findMethodTransitively( clazz.getSuperclass(), methodName );111        }112    }113    public static <T> T newInstance( Class<T> type ){114        return newInstance( type, new Class<?>[0] );115    }116    public static <T> T newInstance( Class<T> type, Class<?>[] parameterTypes, Object... parameterValues ){117        try {118            Constructor<T> constructor = type.getDeclaredConstructor( parameterTypes );119            constructor.setAccessible( true );120            return constructor.newInstance( parameterValues );121        } catch( InstantiationException e ) {122            throw new RuntimeException( e );123        } catch( IllegalAccessException e ) {124            throw new RuntimeException( e );125        } catch( NoSuchMethodException e ) {126            throw new RuntimeException( e );127        } catch( InvocationTargetException e ) {128            throw new RuntimeException( e );129        }130    }131    public static void invokeMethod( Object object, Method method, String errorDescription ){132        log.debug( "Executing method %s of class %s", method, object.getClass() );133        makeAccessible( method, errorDescription );134        try {135            method.invoke( object );136        } catch( IllegalArgumentException e ) {137            log.debug( "Caught exception:", e );138            throw new JGivenExecutionException( "Could not execute " + toReadableString( method ) + errorDescription +139                    ", because it requires parameters. " + "Remove the parameters and try again.", e );140        } catch( IllegalAccessException e ) {141            log.debug( "Caught exception:", e );142            throw new JGivenExecutionException( "Could not execute " + toReadableString( method ) + errorDescription +143                    ", because of insuffient access rights. "144                    + "Either make the method public or disable your security manager while executing JGiven tests.", e );145        } catch( InvocationTargetException e ) {146            throw new JGivenUserException( method, errorDescription, e.getCause() );147        }148    }149    /**150     * Returns a {@link List} of objects reflecting all the non-static field values declared by the class or interface151     * represented by the given {@link Class} object and defined by the given {@link Object}. This includes152     * {@code public}, {@code protected}, default (package) access, and {@code private} fields, but excludes inherited153     * fields. The elements in the {@link List} returned are not sorted and are not in any particular order. This method154     * returns an empty {@link List} if the class or interface declares no fields, or if the given {@link Class} object155     * represents a primitive type, an array class, or void.156     *157     * @param clazz class or interface declaring fields158     * @param target instance of given {@code clazz} from which field values should be retrieved159     * @param errorDescription customizable part of logged error message160     * @return a {@link List} containing all the found field values (never {@code null})...

Source:StageLifecycleManager.java

2import com.tngtech.jgiven.annotation.AfterScenario;3import com.tngtech.jgiven.annotation.AfterStage;4import com.tngtech.jgiven.annotation.BeforeScenario;5import com.tngtech.jgiven.annotation.BeforeStage;6import com.tngtech.jgiven.exception.JGivenUserException;7import com.tngtech.jgiven.impl.intercept.StepInterceptorImpl;8import com.tngtech.jgiven.impl.util.ReflectionUtil;9import java.lang.annotation.Annotation;10import java.lang.reflect.Method;11import java.util.Arrays;12import java.util.HashMap;13import java.util.Map;14import java.util.Optional;15import java.util.function.Predicate;16import java.util.stream.Stream;17import org.slf4j.Logger;18import org.slf4j.LoggerFactory;19class StageLifecycleManager {20    private static final Logger log = LoggerFactory.getLogger(StageLifecycleManager.class);21    private final Object instance;22    private final StepInterceptorImpl methodInterceptor;23    private final LifecycyleMethodManager<AfterStage> afterStageRegister;24    private final LifecycyleMethodManager<BeforeStage> beforeStageRegister;25    private final LifecycyleMethodManager<BeforeScenario> beforeScenarioRegister;26    private final LifecycyleMethodManager<AfterScenario> afterScenarioRegister;27    StageLifecycleManager(Object instance, StepInterceptorImpl methodInterceptor) {28        this.methodInterceptor = methodInterceptor;29        this.instance = instance;30        afterStageRegister = new LifecycyleMethodManager<>(AfterStage.class, AfterStage::repeatable);31        beforeStageRegister = new LifecycyleMethodManager<>(BeforeStage.class, BeforeStage::repeatable);32        beforeScenarioRegister = new LifecycyleMethodManager<>(BeforeScenario.class, (it) -> false);33        afterScenarioRegister = new LifecycyleMethodManager<>(AfterScenario.class, (it) -> false);34    }35    boolean allAfterStageMethodsHaveBeenExecuted() {36        return afterStageRegister.allMethodsHaveBeenExecuted();37    }38    void executeAfterStageMethods(boolean fakeExecution) throws Throwable {39        executeLifecycleMethods(afterStageRegister, fakeExecution);40    }41    void executeBeforeStageMethods(boolean fakeExecution) throws Throwable {42        executeLifecycleMethods(beforeStageRegister, fakeExecution);43    }44    void executeAfterScenarioMethods(boolean fakeExecution) throws Throwable {45        executeLifecycleMethods(afterScenarioRegister, fakeExecution);46    }47    void executeBeforeScenarioMethods(boolean fakeExecution) throws Throwable {48        executeLifecycleMethods(beforeScenarioRegister, fakeExecution);49    }50    private void executeLifecycleMethods(LifecycyleMethodManager<?> register, boolean fakeExecution) throws Throwable {51        if (fakeExecution) {52            register.fakeExecution();53        } else {54            register.executeMethods();55        }56    }57    private enum StepExecutionState {58        EXECUTED(true),59        REPEATABLE(false),60        NOT_EXECUTED(false);61        private final boolean hasBeenExecuted;62        StepExecutionState(boolean hasBeenExecuted) {63            this.hasBeenExecuted = hasBeenExecuted;64        }65        public boolean toBoolean() {66            return this.hasBeenExecuted;67        }68    }69    private class LifecycyleMethodManager<T extends Annotation> {70        private final Class<T> targetAnnotation;71        private final Map<Method, StepExecutionState> register = new HashMap<>();72        private final Predicate<T> predicateFromT;73        private LifecycyleMethodManager(Class<T> targetAnnotation, Predicate<T> predicateFromAnnotation) {74            this.targetAnnotation = targetAnnotation;75            this.predicateFromT = predicateFromAnnotation;76            fillStageRegister(instance);77        }78        @SuppressWarnings({"unchecked"})79        private void fillStageRegister(Object instance) {80            ReflectionUtil.forEachMethod(instance, instance.getClass(), targetAnnotation,81                (object, method) ->82                    Arrays.stream(method.getDeclaredAnnotations())83                        .filter(annotation -> targetAnnotation.isAssignableFrom(annotation.getClass()))84                        .map(annotation -> (T) annotation)85                        .findFirst()86                        .map(it -> predicateFromT.test(it) ? StepExecutionState.REPEATABLE :87                            StepExecutionState.NOT_EXECUTED)88                        .ifPresent(it -> register.put(method, it))89            );90            log.debug("Added methods '{}' as '{}' methods to the register",91                register.keySet(), targetAnnotation.getSimpleName());92        }93        boolean methodMarkedForExecution(Method method) {94            return !Optional.ofNullable(register.get(method))95                .map(StepExecutionState::toBoolean)96                .orElse(true);97        }98        boolean allMethodsHaveBeenExecuted() {99            return register.values().stream().allMatch(StepExecutionState::toBoolean);100        }101        /**102         * Do everything except method invocation.103         */104        void fakeExecution() throws Throwable {105            prepareMethods();106            doExecutionOn(Stream.of());107        }108        void executeMethods() throws Throwable {109            Stream<Method> methodsToExecute = prepareMethods();110            doExecutionOn(methodsToExecute);111        }112        private Stream<Method> prepareMethods() {113            return register.keySet().stream().filter(this::methodMarkedForExecution)114                .peek(this::markStageAsExecuted);115        }116        private void markStageAsExecuted(Method method) {117            StepExecutionState stepState = register.get(method);118            if (stepState == StepExecutionState.NOT_EXECUTED) {119                register.put(method, StepExecutionState.EXECUTED);120            }121        }122        private void doExecutionOn(Stream<Method> methodsToExecute)123            throws Throwable {124            log.debug("Executing methods annotated with @{}", targetAnnotation.getName());125            boolean previousMethodExecution = methodInterceptor.enableMethodExecution(true);126            try {127                methodInterceptor.enableMethodInterception(false);128                methodsToExecute.forEach(method ->129                    ReflectionUtil.invokeMethod(instance, method,130                        " with annotation @" + targetAnnotation.getName()));131                methodInterceptor.enableMethodInterception(true);132            } catch (JGivenUserException e) {133                throw e.getCause();134            } finally {135                methodInterceptor.enableMethodExecution(previousMethodExecution);136            }137        }138    }139}...

Source:JGivenUserException.java

2import java.lang.reflect.Method;3/**4 * This exception is thrown when JGiven tried to execute a user-defined method and that method has thrown an exception.5 */6public class JGivenUserException extends RuntimeException {7    private static final long serialVersionUID = 1L;8    public JGivenUserException( Method method, String methodDescription, Throwable cause ) {9        super( "JGiven caught an exception while trying to execute method " + method + methodDescription + ".", cause );10    }11}...

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