KaneAI - World’s First E2E Software Testing Agent.Signup for Private Beta Join TestMu Conference

How to use getField method of org.powermock.reflect.internal.WhiteboxImpl class

Best Powermock code snippet using org.powermock.reflect.internal.WhiteboxImpl.getField

Source:WhiteBoxGetFieldTest.java

...22import java.lang.reflect.Field;2324/**25 * A test case to demonstrate an issue26 * {@link org.powermock.reflect.internal.WhiteboxImpl#getField(Class, String)}.27 * As the class hierarchy for the given Class is ascended, if the field is not28 * found in the parent class, the interfaces are checked before the grandparent29 * class. The problem is that the getSuperclass() method will always return null30 * for the Class representing the interface. The current implementation of31 * WhiteboxImpl blindly adds this null to the <code>examine</code> LinkedList.32 * 33 * @author Ben Chatelain34 */35public class WhiteBoxGetFieldTest {3637	interface SomeInterface {38	}3940	class GrandParentClass {41		@SuppressWarnings("unused")42		private String fieldA;43	}4445	class ParentClass extends GrandParentClass {46	}4748	class ClassUnderTest extends ParentClass implements SomeInterface {49		@SuppressWarnings("unused")50		private String fieldB;51	}5253	/**54	 * Verifies that <a55	 * href="http://code.google.com/p/powermock/issues/detail?id=149">issue56	 * 149</a> has been resolved.57	 */58	@Test59	public void testGetField() {60		Field fieldA = WhiteboxImpl.getField(ClassUnderTest.class, "fieldA");61		Assert.assertNotNull(fieldA);62	}63}
...

Source:WhiteboxImplTest.java

...6465	@Test66	public void test4() throws Exception {67		Field c$foo = C.class.getDeclaredField("foo");68		aeq(c$foo, WhiteboxImpl.getField(D.class, "foo"));6970	}71}
...

getField

Using AI Code Generation

1package org.powermock.reflect.internal;2import java.lang.reflect.Field;3import java.lang.reflect.Method;4import java.util.Arrays;5import java.util.List;6import org.powermock.reflect.exceptions.FieldNotFoundException;7import org.powermock.reflect.exceptions.TooManyFieldsFoundException;8public class WhiteboxImpl extends Whitebox {9    public static Object getField(Object object, String fieldName) throws FieldNotFoundException, TooManyFieldsFoundException {10        List<Field> fields = getFields(object.getClass(), fieldName);11        if (fields.isEmpty()) {12            throw new FieldNotFoundException("No field with name " + fieldName + " was found in class " + object.getClass().getName());13        }14        if (fields.size() > 1) {15            throw new TooManyFieldsFoundException("Found more than one field with name " + fieldName + " in class " + object.getClass().getName());16        }17        Field field = fields.get(0);18        try {19            field.setAccessible(true);20            return field.get(object);21        } catch (IllegalAccessException e) {22            throw new RuntimeException("Failed to get value of field " + fieldName + " in class " + object.getClass().getName(), e);23        }24    }25    private static List<Field> getFields(Class<?> clazz, String fieldName) {26        List<Field> fields = Arrays.asList(clazz.getDeclaredFields());27        for (Field field : fields) {28            if (field.getName().equals(fieldName)) {29                return Arrays.asList(field);30            }31        }32        if (clazz.getSuperclass() != null) {33            List<Field> superFields = getFields(clazz.getSuperclass(), fieldName);34            if (!superFields.isEmpty()) {35                return superFields;36            }37        }38        return Arrays.asList();39    }40    public static void setField(Object object, String fieldName, Object value) throws FieldNotFoundException, TooManyFieldsFoundException {41        List<Field> fields = getFields(object.getClass(), fieldName);42        if (fields.isEmpty()) {43            throw new FieldNotFoundException("No field with name " + fieldName + " was found in class " + object.getClass().getName());44        }45        if (fields.size() > 1) {46            throw new TooManyFieldsFoundException("Found more than one field with name " + fieldName + " in class " + object.getClass().getName());47        }48        Field field = fields.get(0);49        try {50            field.setAccessible(true);51            field.set(object, value);52        } catch (IllegalAccessException e) {53            throw new RuntimeException("

getField

Using AI Code Generation

1import org.powermock.reflect.internal.WhiteboxImpl;2import java.lang.reflect.Field;3public class 4 {4    public static void main(String[] args) throws Exception {5        Field f = WhiteboxImpl.getField(4.class, "a");6        System.out.println(f);7    }8}9public class 4 {10    public static void main(String[] args) throws Exception {11        Field f = WhiteboxImpl.getField(4.class, "a");12        System.out.println(f);13    }14}15public class 4 {16    public static void main(String[] args) throws Exception {17        Field f = WhiteboxImpl.getField(4.class, "a");18        System.out.println(f);19    }20}21public class 4 {22    public static void main(String[] args) throws Exception {23        Field f = WhiteboxImpl.getField(4.class, "a");24        System.out.println(f);25    }26}27public class 4 {28    public static void main(String[] args) throws Exception {29        Field f = WhiteboxImpl.getField(4.class, "a");30        System.out.println(f);31    }32}33public class 4 {34    public static void main(String[] args) throws Exception {35        Field f = WhiteboxImpl.getField(4.class, "a");36        System.out.println(f);37    }38}39public class 4 {40    public static void main(String[] args) throws Exception {41        Field f = WhiteboxImpl.getField(4.class, "a");42        System.out.println(f);43    }44}45public class 4 {46    public static void main(String[] args) throws Exception {47        Field f = WhiteboxImpl.getField(4.class, "a");48        System.out.println(f);49    }50}51public class 4 {52    public static void main(String[] args) throws Exception {53        Field f = WhiteboxImpl.getField(4.class, "a");54        System.out.println(f);55    }56}57public class 4 {58    public static void main(String[] args) throws Exception {59        Field f = WhiteboxImpl.getField(4.class, "a");60        System.out.println(f);61    }62}63public class 4 {64    public static void main(String[] args) throws Exception {65        Field f = WhiteboxImpl.getField(4.class, "a");66        System.out.println(f);67    }68}69public class 4 {

getField

Using AI Code Generation

1package org.powermock.reflect.testclasses;2import java.lang.reflect.Field;3import org.powermock.reflect.internal.WhiteboxImpl;4public class ClassWithPrivateField {5    private String privateField = "privateField";6    public String getPrivateField() {7        return privateField;8    }9    public void setPrivateField(String privateField) {10        this.privateField = privateField;11    }12    public static void main(String[] args) throws Exception {13        ClassWithPrivateField obj = new ClassWithPrivateField();14        Field field = WhiteboxImpl.getField(ClassWithPrivateField.class, "privateField");15        field.setAccessible(true);16        field.set(obj, "changed");17        System.out.println(obj.getPrivateField());18    }19}

getField

Using AI Code Generation

1import java.lang.reflect.Field;2import org.powermock.reflect.internal.WhiteboxImpl;3public class 4 {4    public static void main(String[] args) throws Exception {5        A a = new A(5, 10);6        int x = (int) WhiteboxImpl.getField(A.class, "x").get(a);7        System.out.println("Value of field 'x' is: " + x);8        int y = (int) WhiteboxImpl.getField(A.class, "y").get(a);9        System.out.println("Value of field 'y' is: " + y);10    }11}12class A {13    private int x;14    private int y;15    public A(int x, int y) {16        this.x = x;17        this.y = y;18    }19}

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.