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How to use ValueInjector class of com.tngtech.jgiven.impl.inject package

Best JGiven code snippet using com.tngtech.jgiven.impl.inject.ValueInjector

...11import com.tngtech.jgiven.attachment.Attachment;12import com.tngtech.jgiven.exception.FailIfPassedException;13import com.tngtech.jgiven.exception.JGivenMissingRequiredScenarioStateException;14import com.tngtech.jgiven.exception.JGivenUserException;15import com.tngtech.jgiven.impl.inject.ValueInjector;16import com.tngtech.jgiven.impl.intercept.NoOpScenarioListener;17import com.tngtech.jgiven.impl.intercept.ScenarioListener;18import com.tngtech.jgiven.impl.intercept.StageTransitionHandler;19import com.tngtech.jgiven.impl.intercept.StepInterceptorImpl;20import com.tngtech.jgiven.impl.util.FieldCache;21import com.tngtech.jgiven.impl.util.ReflectionUtil;22import com.tngtech.jgiven.integration.CanWire;23import com.tngtech.jgiven.report.model.InvocationMode;24import com.tngtech.jgiven.report.model.NamedArgument;25import java.lang.annotation.Annotation;26import java.lang.reflect.Field;27import java.lang.reflect.Method;28import java.util.ArrayList;29import java.util.LinkedHashMap;30import java.util.List;31import java.util.Map;32import java.util.Optional;33import org.slf4j.Logger;34import org.slf4j.LoggerFactory;35/**36 * Main class of JGiven for executing scenarios.37 */38public class ScenarioExecutor {39    private static final Logger log = LoggerFactory.getLogger(ScenarioExecutor.class);40    enum State {41        INIT,42        STARTED,43        FINISHED44    }45    private Object currentTopLevelStage;46    private State state = State.INIT;47    private boolean beforeScenarioMethodsExecuted;48    /**49     * Whether life cycle methods should be executed.50     * This is only false for scenarios that are annotated with @NotImplementedYet51     */52    private boolean executeLifeCycleMethods = true;53    protected final Map<Class<?>, StageState> stages = new LinkedHashMap<>();54    private final List<Object> scenarioRules = new ArrayList<>();55    private final ValueInjector injector = new ValueInjector();56    private StageCreator stageCreator = createStageCreator(new ByteBuddyStageClassCreator());57    private ScenarioListener listener = new NoOpScenarioListener();58    protected final StageTransitionHandler stageTransitionHandler = new StageTransitionHandlerImpl();59    protected final StepInterceptorImpl methodInterceptor =60        new StepInterceptorImpl(this, listener, stageTransitionHandler);61    /**62     * Set if an exception was thrown during the execution of the scenario and63     * suppressStepExceptions is true.64     */65    private Throwable failedException;66    private boolean failIfPass;67    /**68     * Whether exceptions caught while executing steps should be thrown at the end69     * of the scenario. Only relevant if suppressStepExceptions is true, because otherwise...

Source: ValueInjector.java

...18import org.slf4j.LoggerFactory;19/**20 * Used by Scenario to inject and read values from objects.21 */22public class ValueInjector {23    private static final Logger log = LoggerFactory.getLogger(ValueInjector.class);24    /**25     * Caches all classes that have been already validated for ambiguous resolution.26     * This avoids duplicate validations of the same class.27     */28    private static final ConcurrentHashMap<Class<?>, Boolean> validatedClasses = new ConcurrentHashMap<>();29    private final ValueInjectorState state = new ValueInjectorState();30    /**31     * @throws AmbiguousResolutionException when multiple fields with the same resolution exist in the given object32     */33    @SuppressWarnings("unchecked")34    public void validateFields(Object object) {35        if (validatedClasses.get(object.getClass()) == Boolean.TRUE) {36            return;37        }38        Map<Object, Field> resolvedFields = Maps.newHashMap();39        for (ScenarioStateField field : getScenarioFields(object)) {40            field.getField().setAccessible(true);41            Resolution resolution = field.getResolution();42            Object key = null;43            if (resolution == Resolution.NAME) {...

Source: ValueInjectorTest.java

...5import com.tngtech.jgiven.annotation.ScenarioState;6import com.tngtech.jgiven.exception.JGivenMissingGuaranteedScenarioStateException;7import com.tngtech.jgiven.exception.JGivenMissingRequiredScenarioStateException;8import org.junit.Test;9public class ValueInjectorTest {10    private ValueInjector injector = new ValueInjector();11    @Test(expected = JGivenMissingGuaranteedScenarioStateException.class)12    public void null_provided_field_throws_exception() {13        FakeStage stageObject = new FakeStage(null, null, "");14        injector.readValues(stageObject);15    }16    @Test(expected = JGivenMissingGuaranteedScenarioStateException.class)17    public void null_state_field_throws_exception() throws Throwable {18        FakeStage stageObject = new FakeStage("", null, null);19        injector.readValues(stageObject);20    }21    @Test22    public void initialized_fields_do_not_interrupt_execution() {23        FakeStage stageObject = new FakeStage("", null, "");24        injector.readValues(stageObject);...

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