How to use FieldReader class of org.mockito.internal.util.reflection package

Best Mockito code snippet using org.mockito.internal.util.reflection.FieldReader

Source:MockScanner.java

...6import org.mockito.Mock;7import org.mockito.MockitoAnnotations;8import org.mockito.Spy;9import org.mockito.internal.util.MockUtil;10import org.mockito.internal.util.reflection.FieldReader;11import java.lang.reflect.Field;12import java.util.Set;13import static org.mockito.internal.util.collections.Sets.newMockSafeHashSet;14/**15 * Scan mocks, and prepare them if needed.16 */17public class MockScanner {18    private MockUtil mockUtil = new MockUtil();19    private final Object instance;20    private final Class<?> clazz;21    /**22     * Creates a MockScanner.23     *24     * @param instance The test instance25     * @param clazz    The class in the type hierarchy of this instance.26     */27    public MockScanner(Object instance, Class<?> clazz) {28        this.instance = instance;29        this.clazz = clazz;30    }31    /**32     * Add the scanned and prepared mock instance to the given collection.33     *34     * <p>35     * The preparation of mocks consists only in defining a MockName if not already set.36     * </p>37     *38     * @param mocks Set of mocks39     */40    public void addPreparedMocks(Set<Object> mocks) {41        mocks.addAll(scan());42    }43    /**44     * Scan and prepare mocks for the given <code>testClassInstance</code> and <code>clazz</code> in the type hierarchy.45     *46     * @return A prepared set of mock47     */48    private Set<Object> scan() {49        Set<Object> mocks = newMockSafeHashSet();50        for (Field field : clazz.getDeclaredFields()) {51            // mock or spies only52            FieldReader fieldReader = new FieldReader(instance, field);53            Object mockInstance = preparedMock(fieldReader.read(), field);54            if (mockInstance != null) {55                mocks.add(mockInstance);56            }57        }58        return mocks;59    }60    private Object preparedMock(Object instance, Field field) {61        if (isAnnotatedByMockOrSpy(field)) {62            return instance;63        } else if (isMockOrSpy(instance)) {64            mockUtil.maybeRedefineMockName(instance, field.getName());65            return instance;66        }...

Source:SpyOnInjectedFieldsHandler.java

...6import org.mockito.Mockito;7import org.mockito.Spy;8import org.mockito.exceptions.base.MockitoException;9import org.mockito.internal.util.MockUtil;10import org.mockito.internal.util.reflection.FieldReader;11import org.mockito.internal.util.reflection.FieldSetter;12import java.lang.reflect.Field;13import java.util.Set;14import static org.mockito.Mockito.withSettings;15/**16 * Handler for field annotated with &#64;InjectMocks and &#64;Spy.17 *18 * <p>19 * The handler assumes that field initialization AND injection already happened.20 * So if the field is still null, then nothing will happen there.21 * </p>22 */23public class SpyOnInjectedFieldsHandler extends MockInjectionStrategy {24    @Override25    protected boolean processInjection(Field field, Object fieldOwner, Set<Object> mockCandidates) {26        FieldReader fieldReader = new FieldReader(fieldOwner, field);27        // TODO refoctor : code duplicated in SpyAnnotationEngine28        if(!fieldReader.isNull() && field.isAnnotationPresent(Spy.class)) {29            try {30                Object instance = fieldReader.read();31                if (new MockUtil().isMock(instance)) {32                    // A. instance has been spied earlier33                    // B. protect against multiple use of MockitoAnnotations.initMocks()34                    Mockito.reset(instance);35                } else {36                    new FieldSetter(fieldOwner, field).set(37                        Mockito.mock(instance.getClass(), withSettings()38                            .spiedInstance(instance)39                            .defaultAnswer(Mockito.CALLS_REAL_METHODS)40                            .name(field.getName()))...

FieldReader

Using AI Code Generation

1package org.mockito.internal.util.reflection;2import java.lang.reflect.Field;3import java.lang.reflect.Modifier;4import java.util.ArrayList;5import java.util.List;6public class FieldReader {7    private final Field field;8    public FieldReader(Field field) {9        this.field = field;10        field.setAccessible(true);11    }12    public Object read(Object target) {13        try {14            return field.get(target);15        } catch (IllegalAccessException e) {16            throw new RuntimeException(e);17        }18    }19    public boolean isFinal() {20        return Modifier.isFinal(field.getModifiers());21    }22    public boolean isStatic() {23        return Modifier.isStatic(field.getModifiers());24    }25    public boolean isTransient() {26        return Modifier.isTransient(field.getModifiers());27    }28    public boolean isSynthetic() {29        return field.isSynthetic();30    }31    public static List<Field> getFieldsIncludingInherited(Class<?> clazz) {32        List<Field> fields = new ArrayList<Field>();33        for (Class<?> c = clazz; c != null; c = c.getSuperclass()) {34            for (Field f : c.getDeclaredFields()) {35                fields.add(f);36            }37        }38        return fields;39    }40    public static List<Field> getFieldsIncludingInherited(Class<?> clazz, FieldFilter filter) {41        List<Field> fields = new ArrayList<Field>();42        for (Class<?> c = clazz; c != null; c = c.getSuperclass()) {43            for (Field f : c.getDeclaredFields()) {44                if (filter.accept(f)) {45                    fields.add(f);46                }47            }48        }49        return fields;50    }51    public static FieldReader field(Object target, String fieldName) {52        return new FieldReader(Fields.field(target.getClass(), fieldName));53    }54    public static FieldReader field(Class<?> clazz, String fieldName) {55        return new FieldReader(Fields.field(clazz, fieldName));56    }57    public static FieldReader field(Object target, Class<?> fieldType) {58        return new FieldReader(Fields.field(target.getClass(), fieldType));59    }60    public static FieldReader field(Class<?> clazz, Class<?> fieldType) {61        return new FieldReader(Fields.field(clazz, fieldType));62    }63    public static FieldReader field(Object target, Class<?> fieldType, String fieldName) {64        return new FieldReader(Fields.field(target.getClass(), fieldType, fieldName));65    }66    public static FieldReader field(Class<?> clazz, Class<?> fieldType, String fieldName) {

FieldReader

Using AI Code Generation

1import org.mockito.internal.util.reflection.FieldReader;2import java.lang.reflect.Field;3import java.util.List;4import java.util.ArrayList;5import java.lang.reflect.Method;6public class Test {7    public static void main(String[] args) {8        List<String> list = new ArrayList<String>();9        list.add("one");10        list.add("two");11        list.add("three");12        FieldReader fieldReader = new FieldReader(list);13        List<String> list2 = (List<String>) fieldReader.readField("elementData");14        System.out.println("list2: " + list2);15    }16}

FieldReader

Using AI Code Generation

1import org.mockito.internal.util.reflection.FieldReader;2import org.mockito.internal.util.reflection.FieldReader.FieldNotFoundException;3public class 1 {4    public static void main(String[] args) {5        String s = "Hello World!";6        FieldReader fieldReader = new FieldReader(s);7        try {8            char[] value = (char[]) fieldReader.read("value");9            System.out.println(value);10        } catch (FieldNotFoundException e) {11            e.printStackTrace();12        }13    }14}15[Ljava.lang.String;@6d06d69c16Object read(Object target)17The syntax of the read() method is as follows:18Object read(Object target)19Example: Using the read() method of the Field class20import java.lang.reflect.Field;21public class 2 {22    public static void main(String[] args) {23        String s = "Hello World!";24        try {25            Field field = s.getClass().getDeclaredField("value");26            field.setAccessible(true);27            char[] value = (char[]) field.get(s);28            System.out.println(value);29        } catch (NoSuchFieldException e) {30            e.printStackTrace();31        } catch (IllegalAccessException e) {

FieldReader

Using AI Code Generation

1import org.mockito.internal.util.reflection.FieldReader;2import org.mockito.internal.util.reflection.FieldWriter;3public class Test {4    public static void main(String[] args) {5        FieldReader reader = new FieldReader();6        FieldWriter writer = new FieldWriter();7        Test t = new Test();8        System.out.println(reader.read("name", t));9        writer.write("name", t, "new name");10        System.out.println(reader.read("name", t));11    }12    private String name = "test";13}

FieldReader

Using AI Code Generation

1import org.mockito.internal.util.reflection.FieldReader;2public class 1 {3    public static void main(String[] args) {4        ClassToTest ctt = new ClassToTest();5        FieldReader fr = new FieldReader();6        Integer i = (Integer) fr.readField("privateField", ctt);7        System.out.println(i);8    }9}10public class ClassToTest {11    private Integer privateField = 1;12    public Integer publicField = 2;13}

FieldReader

Using AI Code Generation

1package org.mockito.internal.util.reflection;2import org.mockito.internal.util.reflection.FieldReader;3public class FieldReaderTest {4    public static void main(String[] args) {5        FieldReaderTest obj = new FieldReaderTest();6        System.out.println(obj.getValue());7    }8    private int getValue() {9        return 10;10    }11}12package org.mockito.internal.util.reflection;13import org.mockito.internal.util.reflection.FieldWriter;14public class FieldWriterTest {15    public static void main(String[] args) {16        FieldWriterTest obj = new FieldWriterTest();17        obj.setValue(20);18        System.out.println(obj.getValue());19    }20    private int getValue() {21        return 10;22    }23    private void setValue(int value) {24    }25}26package org.mockito.internal.util.reflection;27import org.mockito.internal.util.reflection.FieldSetter;28public class FieldSetterTest {29    public static void main(String[] args) {30        FieldSetterTest obj = new FieldSetterTest();31        FieldSetter.setField(obj, obj.getClass(), "value", 20);32        System.out.println(obj.getValue());33    }34    private int getValue() {35        return 10;36    }37    private int value;38}39package org.mockito.internal.util.reflection;40import org.mockito.internal.util.reflection.FieldInitializer;41public class FieldInitializerTest {42    public static void main(String[] args) {43        FieldInitializerTest obj = new FieldInitializerTest();44        FieldInitializer.setField(obj, obj.getClass(), "value", 20);45        System.out.println(obj.getValue());46    }47    private int getValue() {48        return 10;49    }50    private int value;51}52package org.mockito.internal.util.reflection;53import org.mockito.internal.util.reflection.Constructor;54public class ConstructorTest {55    public static void main(String[] args) {56        ConstructorTest obj = Constructor.of(ConstructorTest.class

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