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How to use JGivenInjectionException class of com.tngtech.jgiven.exception package
Best JGiven code snippet using com.tngtech.jgiven.exception.JGivenInjectionException
Source:ValueInjector.java 
...5import com.tngtech.jgiven.annotation.ProvidedScenarioState;6import com.tngtech.jgiven.annotation.ScenarioState;7import com.tngtech.jgiven.annotation.ScenarioState.Resolution;8import com.tngtech.jgiven.exception.AmbiguousResolutionException;9import com.tngtech.jgiven.exception.JGivenInjectionException;10import com.tngtech.jgiven.exception.JGivenMissingGuaranteedScenarioStateException;11import com.tngtech.jgiven.exception.JGivenMissingRequiredScenarioStateException;12import com.tngtech.jgiven.impl.util.FieldCache;13import java.lang.reflect.Field;14import java.util.List;15import java.util.Map;16import java.util.concurrent.ConcurrentHashMap;17import org.slf4j.Logger;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) {44 key = field.getField().getName();45 } else {46 key = field.getField().getType();47 }48 if (resolvedFields.containsKey(key)) {49 Field existingField = resolvedFields.get(key);50 throw new AmbiguousResolutionException("Ambiguous fields with same " + resolution + " detected. Field 1: "51 + existingField + ", field 2: " + field.getField());52 }53 resolvedFields.put(key, field.getField());54 }55 validatedClasses.put(object.getClass(), Boolean.TRUE);56 }57 private List<ScenarioStateField> getScenarioFields(Object object) {58 @SuppressWarnings("unchecked")59 List<Field> scenarioFields = FieldCache60 .get(object.getClass())61 .getFieldsWithAnnotation(ScenarioState.class, ProvidedScenarioState.class, ExpectedScenarioState.class);62 return scenarioFields.stream()63 .map(ScenarioStateField.fromField)64 .collect(toList());65 }66 /**67 * @throws JGivenMissingGuaranteedScenarioStateException in case a field is guaranteed68 * and is not initialized by the finishing stage69 */70 @SuppressWarnings("unchecked")71 public void readValues(Object object) {72 validateFields(object);73 checkGuaranteedStatesAreInitialized(object);74 for (ScenarioStateField field : getScenarioFields(object)) {75 try {76 Object value = field.getField().get(object);77 updateValue(field, value);78 log.debug("Reading value {} from field {}", value, field.getField());79 } catch (IllegalAccessException e) {80 throw new RuntimeException("Error while reading field " + field.getField(), e);81 }82 }83 }84 /**85 * @throws JGivenMissingRequiredScenarioStateException in case a field requires86 * a value and the value is not present87 */88 @SuppressWarnings("unchecked")89 public void updateValues(Object object) {90 validateFields(object);91 for (ScenarioStateField field : getScenarioFields(object)) {92 Object value = getValue(field);93 if (value != null) {94 try {95 field.getField().set(object, value);96 } catch (IllegalAccessException e) {97 throw new RuntimeException("Error while updating field " + field.getField(), e);98 }99 log.debug("Setting field {} to value {}", field.getField(), value);100 } else if (field.isRequired()) {101 throw new JGivenMissingRequiredScenarioStateException(field.getField());102 }103 }104 }105 public <T> void injectValueByType(Class<T> clazz, T value) {106 state.updateValueByType(clazz, value);107 }108 public <T> void injectValueByName(String name, T value) {109 state.updateValueByName(name, value);110 }111 private void updateValue(ScenarioStateField field, Object value) {112 if (field.getResolution() == Resolution.NAME) {113 state.updateValueByName(field.getField().getName(), value);114 } else {115 state.updateValueByType(field.getField().getType(), value);116 }117 }118 private Object getValue(ScenarioStateField field) {119 if (field.getResolution() == Resolution.NAME) {120 return state.getValueByName(field.getField().getName());121 }122 return state.getValueByType(field.getField().getType());123 }124 private void checkGuaranteedStatesAreInitialized(Object instance) {125 for (Field field: FieldCache.get(instance.getClass())126 .getFieldsWithAnnotation(ProvidedScenarioState.class, ScenarioState.class)) {127 if (field.isAnnotationPresent(ProvidedScenarioState.class)) {128 if (field.getAnnotation(ProvidedScenarioState.class).guaranteed()) {129 checkInitialized(instance, field);130 }131 }132 if (field.isAnnotationPresent(ScenarioState.class)) {133 if (field.getAnnotation(ScenarioState.class).guaranteed()) {134 checkInitialized(instance, field);135 }136 }137 }138 }139 private void checkInitialized(Object instance, Field field) {140 Object value = null;141 try {142 value = field.get(instance);143 } catch (IllegalAccessException e) {144 throw new JGivenInjectionException("The guaranteed field inside the scenario state cannot be accessed",145 e);146 }147 if (value == null) {148 throw new JGivenMissingGuaranteedScenarioStateException(field);149 }150 }151}...
Source:ReflectionUtilTest.java
...3import org.junit.Rule;4import org.junit.Test;5import org.junit.rules.ExpectedException;6import com.tngtech.jgiven.exception.JGivenExecutionException;7import com.tngtech.jgiven.exception.JGivenInjectionException;8public class ReflectionUtilTest {9 @Rule10 public final ExpectedException expectedException = ExpectedException.none();11 static class TestClass {12 private String testField;13 private void testMethod( Integer someArg ) {}14 }15 @Test16 public void injection_exception_is_thrown_if_field_cannot_be_set() throws Exception {17 expectedException.expect( JGivenInjectionException.class );18 ReflectionUtil.setField( TestClass.class.getDeclaredField( "testField" ), new TestClass(), 5, "test description" );19 }20 @Test21 public void makeAccessible_does_not_throw_execptions() throws Exception {22 AccessibleObject stub = new AccessibleObject() {23 @Override24 public void setAccessible( boolean flag ) throws SecurityException {25 throw new SecurityException();26 }27 };28 ReflectionUtil.makeAccessible( stub, "test" );29 }30 @Test31 public void execution_exception_is_thrown_if_method_cannot_be_invoked() throws Exception {...
Source:JGivenInjectionException.java
1package com.tngtech.jgiven.exception;2public class JGivenInjectionException extends RuntimeException {3 private static final long serialVersionUID = 1L;4 public JGivenInjectionException( String message, Exception e ) {5 super( message, e );6 }7}...
JGivenInjectionException
Using AI Code Generation
1import com.tngtech.jgiven.exception.JGivenInjectionException;2public class JGivenInjectionExceptionDemo {3 public static void main(String args[]) {4 JGivenInjectionException obj = new JGivenInjectionException("Exception");5 System.out.println("Exception: " + obj.getMessage());6 }7}
JGivenInjectionException
Using AI Code Generation
1import com.tngtech.jgiven.exception.JGivenInjectionException;2public class JGivenInjectionExceptionDemo {3 public static void main(String[] args) {4 JGivenInjectionException jGivenInjectionException = new JGivenInjectionException("JGivenInjectionException");5 System.out.println(jGivenInjectionException);6 }7}
JGivenInjectionException
Using AI Code Generation
1import com.tngtech.jgiven.exception.JGivenInjectionException;2public class JGivenInjectionExceptionDemo {3 public static void main(String[] args) {4 try {5 throw new JGivenInjectionException("An error occurred");6 } catch (JGivenInjectionException e) {7 System.out.println("JGivenInjectionException caught");8 }9 }10}
JGivenInjectionException
Using AI Code Generation
1import com.tngtech.jgiven.exception.JGivenInjectionException;2public class JGivenInjectionExceptionDemo {3 public static void main(String[] args) {4 try {5 throw new JGivenInjectionException("JGivenInjectionException is thrown");6 } catch (JGivenInjectionException e) {7 System.out.println(e);8 }9 }10}11 at JGivenInjectionExceptionDemo.main(1.java:8)
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