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How to use fields method of org.powermock.api.support.membermodification.MemberMatcher class

Best Powermock code snippet using org.powermock.api.support.membermodification.MemberMatcher.fields

Source:MemberModifier.java

...23import org.powermock.api.support.membermodification.strategy.impl.MethodReplaceStrategyImpl;24import org.powermock.api.support.membermodification.strategy.impl.MethodStubStrategyImpl;25/**26 * Contains various utilities for modifying members of classes such as27 * constructors, fields and methods. Modifying means e.g. changing return value28 * of method invocations or suppressing a constructor.29 */30public class MemberModifier extends MemberMatcher {31	/**32	 * Suppress a specific method. This works on both instance methods and33	 * static methods.34	 */35	public static void suppress(Method method) {36		SuppressCode.suppressMethod(method);37	}38	/**39	 * Suppress multiple methods. This works on both instance methods and static40	 * methods.41	 */42	public static void suppress(Method[] methods) {43		SuppressCode.suppressMethod(methods);44	}45	/**46	 * Suppress a constructor.47	 */48	public static void suppress(Constructor<?> constructor) {49		SuppressCode.suppressConstructor(constructor);50	}51	/**52	 * Suppress multiple constructors.53	 */54	public static void suppress(Constructor<?>[] constructors) {55		SuppressCode.suppressConstructor(constructors);56	}57	/**58	 * Suppress a field.59	 */60	public static void suppress(Field field) {61		SuppressCode.suppressField(field);62	}63	/**64	 * Suppress multiple fields.65	 */66	public static void suppress(Field[] fields) {67		SuppressCode.suppressField(fields);68	}69	/**70	 * Add a method that should be intercepted and return another value (i.e.71	 * the method is stubbed).72	 */73	public static <T> MethodStubStrategy<T> stub(Method method) {74		return new MethodStubStrategyImpl<T>(method);75	}76	/**77	 * Replace a method invocation.78	 */79	public static MethodReplaceStrategy replace(Method method) {80		return new MethodReplaceStrategyImpl(method);81	}...

Source:ProtobufSerializationTestBase.java

2import static org.junit.Assert.assertArrayEquals;3import static org.junit.Assert.assertEquals;4import static org.junit.Assert.assertNotNull;5import static org.powermock.api.support.membermodification.MemberMatcher.field;6import static org.powermock.api.support.membermodification.MemberMatcher.fields;7import java.lang.reflect.Field;8import java.util.Arrays;9import io.protostuff.LinkedBuffer;10import io.protostuff.Message;11import io.protostuff.ProtobufIOUtil;12import org.junit.Before;13public class ProtobufSerializationTestBase {14    protected LinkedBuffer buffer;15    16    @Before17    public void setUp() {18        buffer = LinkedBuffer.allocate(4096);19    }20    21    protected <T extends Message<T>> void testFieldNames(String[] fieldNames, Class<T> clazz) {22        Field[] fields = fields(clazz);23        assertEquals("The number of fields in " + clazz.getName() + " has changed.  Please update " + getClass().getName() + ".", fieldNames.length,24                        fields.length);25        26        String[] actualFieldNames = new String[fields.length];27        for (int i = 0; i < fields.length; ++i)28            actualFieldNames[i] = fields[i].getName();29        30        Arrays.sort(fieldNames);31        Arrays.sort(actualFieldNames);32        assertArrayEquals("Serialization/deserialization of " + clazz.getName() + " failed.", fieldNames, actualFieldNames);33    }34    35    protected <T extends Message<T>> void testRoundTrip(Class<T> clazz, String[] fieldNames, Object[] fieldValues) throws Exception {36        assertNotNull(fieldNames);37        assertNotNull(fieldValues);38        assertEquals(fieldNames.length, fieldValues.length);39        40        T original = clazz.newInstance();41        for (int i = 0; i < fieldNames.length; ++i)42            field(clazz, fieldNames[i]).set(original, fieldValues[i]);...

Source:ItemRepositoryTest.java

...6import org.powermock.modules.junit4.PowerMockRunner;7import org.powermock.reflect.Whitebox;8import samples.suppressfield.ItemRepository;9import static org.powermock.api.support.membermodification.MemberMatcher.field;10import static org.powermock.api.support.membermodification.MemberMatcher.fields;11import static org.powermock.api.support.membermodification.MemberModifier.suppress;12@RunWith(PowerMockRunner.class)13@PrepareForTest( { ItemRepository.class })14@SuppressStaticInitializationFor("samples.suppressfield.ItemRepository")15public class ItemRepositoryTest {16	@Test(expected = NullPointerException.class)17	public void testaddItem() throws Exception {18		suppress(fields(field(ItemRepository.class, "itemMap"), field(ItemRepository.class, "totalItems")));19		ItemRepository objRep = Whitebox.newInstance(ItemRepository.class);20		objRep.addItem("key", "value");21	}22}...

fields

Using AI Code Generation

1package com.powermock;2import static org.powermock.api.support.membermodification.MemberMatcher.field;3import static org.powermock.api.support.membermodification.MemberModifier.suppress;4import org.junit.Test;5import org.junit.runner.RunWith;6import org.powermock.core.classloader.annotations.PrepareForTest;7import org.powermock.modules.junit4.PowerMockRunner;8import com.powermock.model.Employee;9@RunWith(PowerMockRunner.class)10@PrepareForTest(Employee.class)11public class PowerMockTest4 {12	public void testFields() throws Exception {13		suppress(field(Employee.class, "salary"));14		Employee employee = new Employee("John", 1000);15		System.out.println(employee.getSalary());16	}17}

fields

Using AI Code Generation

1package org.powermock.examples.tutorial.membermodification;2import static org.junit.Assert.assertEquals;3import static org.powermock.api.support.membermodification.MemberMatcher.methods;4import static org.powermock.api.support.membermodification.MemberModifier.suppress;5import java.lang.reflect.Method;6import org.junit.Test;7import org.junit.runner.RunWith;8import org.powermock.core.classloader.annotations.PrepareForTest;9import org.powermock.modules.junit4.PowerMockRunner;10@RunWith(PowerMockRunner.class)11@PrepareForTest({ClassWithStaticMethods.class})12public class ClassWithStaticMethodsTest {13	public void testSuppressingStaticMethod() throws Exception {14		suppress(methods(ClassWithStaticMethods.class, "staticMethod"));15		assertEquals("staticMethod was not suppressed", 0, ClassWithStaticMethods.staticMethod());16	}17	public void testSuppressingStaticMethodWithMultipleArguments() throws Exception {18		suppress(methods(ClassWithStaticMethods.class, "staticMethodWithMultipleArguments", int.class, String.class));19		assertEquals("staticMethodWithMultipleArguments was not suppressed", 0, ClassWithStaticMethods.staticMethodWithMultipleArguments(0, ""));20	}21	public void testSuppressingStaticMethodWithVarargs() throws Exception {22		suppress(methods(ClassWithStaticMethods.class, "staticMethodWithVarargs", int[].class));23		assertEquals("staticMethodWithVarargs was not suppressed", 0, ClassWithStaticMethods.staticMethodWithVarargs(0));24	}25	public void testSuppressingStaticMethodWithArrayArgument() throws Exception {26		suppress(methods(ClassWithStaticMethods.class, "staticMethodWithArrayArgument", int[].class));27		assertEquals("staticMethodWithArrayArgument was not suppressed", 0, ClassWithStaticMethods.staticMethodWithArrayArgument(new int[] { 0 }));28	}29	public void testSuppressingStaticMethodWithPrimitiveArgument() throws Exception {30		suppress(methods(ClassWithStaticMethods.class, "staticMethodWithPrimitiveArgument", int.class));31		assertEquals("staticMethodWithPrimitiveArgument was not suppressed", 0, ClassWithStaticMethods.staticMethodWithPrimitiveArgument(0));32	}33	public void testSuppressingStaticMethodWithArgumentThatIsSubclassOfArgumentInDeclaredMethod() throws Exception {34		suppress(methods(ClassWithStaticMethods.class, "staticMethodWithPrimitiveArgument", Integer.class));35		assertEquals("staticMethodWithPrimitive

fields

Using AI Code Generation

1import java.io.File;2import java.io.IOException;3import java.util.ArrayList;4import java.util.List;5import org.apache.commons.io.FileUtils;6import org.powermock.api.support.membermodification.MemberMatcher;7import org.powermock.api.support.membermodification.MemberModifier;8import org.powermock.core.classloader.annotations.PrepareForTest;9import org.powermock.modules.junit4.PowerMockRunner;10import org.powermock.reflect.Whitebox;11import org.junit.Assert;12import org.junit.Before;13import org.junit.Test;14import org.junit.runner.RunWith;15@RunWith(PowerMockRunner.class)16@PrepareForTest({4.class})17{18    private 4 instance;19    public void setUp()20    {21        instance = new 4();22    }23    public void test1() throws Exception24    {25        List<String> lines = FileUtils.readLines(new File("C:\\Users\\Administrator\\Desktop\\4.txt"));26        List<String> result = new ArrayList<String>();27        for (String line : lines)28        {29            String[] arr = line.split(",");30            result.add(arr[0]);31        }32        MemberModifier.field(4.class, "list").set(instance, result);33        String[] args = null;34        String[] expected = null;35        String[] actual = Whitebox.invokeMethod(instance, "method", args);36        Assert.assertArrayEquals(expected, actual);37    }38}39import java.io.File;40import java.io.IOException;41import java.util.ArrayList;42import java.util.List;43import org.apache.commons.io.FileUtils;44import org.powermock.api.support.membermodification.MemberMatcher;45import org.powermock.api.support.membermodification.MemberModifier;46import org.powermock.core.classloader.annotations.PrepareForTest;47import org.powermock.modules.junit4.PowerMockRunner;48import org.powermock.reflect.Whitebox;49import org.junit.Assert;50import org.junit.Before;51import org.junit.Test;52import org.junit.runner.RunWith;53@RunWith(PowerMockRunner.class)54@PrepareForTest({4.class})55{56    private 4 instance;57    public void setUp()58    {59        instance = new 4();60    }61    public void test1() throws Exception62    {63        List<String> lines = FileUtils.readLines(new File("C:\\Users\\Administrator\\Desktop\\4.txt"));

fields

Using AI Code Generation

1import org.powermock.api.support.membermodification.MemberMatcher;2import org.powermock.api.support.membermodification.MemberModifier;3public class 4 {4    public static void main(String[] args) throws Exception {5        Class<?> clazz = Class.forName("com.test.Test");6        Field field = MemberMatcher.field(clazz, "name");7        MemberModifier.field(clazz, field).set("test");8        field = MemberMatcher.field(clazz, "name");9        String value = (String) MemberModifier.field(clazz, field).get();10        System.out.println(value);11    }12}13public class Test {14    private String name;15    public String getName() {16        return name;17    }18}19public static Method method(Class<?> clazz, String methodName, Class<?>... parameterTypes)20import org.powermock.api.support.membermodification.MemberMatcher;21import org.powermock.api.support.membermodification.MemberModifier;22public class 5 {23    public static void main(String[] args) throws Exception {24        Class<?> clazz = Class.forName("com.test.Test");25        Method method = MemberMatcher.method(clazz, "getName");26        String value = (String) MemberModifier.method(clazz, method).invoke(new Test());27        System.out.println(value);28    }29}30public class Test {31    private String name;32    public String getName() {33        return name;34    }35}36public static Constructor<?> constructor(Class<?> clazz, Class<?>... parameterTypes)

fields

Using AI Code Generation

1package com.powermock;2import java.lang.reflect.Field;3import java.util.ArrayList;4import java.util.List;5import org.powermock.api.support.membermodification.MemberMatcher;6import org.powermock.api.support.membermodification.MemberModifier;7public class MemberMatcherDemo {8    public static void main(String[] args) throws Exception {9        List<String> list = new ArrayList<String>();10        list.add("test");11        System.out.println("before modification: " + list.get(0));12        Field field = MemberMatcher.field(ArrayList.class, "elementData");13        MemberModifier.field(ArrayList.class, "elementData").set(list, new Object[] { "test1" });14        System.out.println("after modification: " + list.get(0));15    }16}

fields

Using AI Code Generation

1package org.powermock.api.support.membermodification;2import java.lang.reflect.Field;3import java.util.List;4import org.powermock.api.support.membermodification.MemberMatcher;5public class MemberMatcherFields {6    public static void main(String[] args) throws Exception {7        List<Field> fields = MemberMatcher.fields(MemberMatcher.class, "fields");8        System.out.println(fields);9    }10}

fields

Using AI Code Generation

1package org.powermock.api.support.membermodification;2import java.lang.reflect.Field;3import org.powermock.reflect.Whitebox;4public class MemberMatcher {5public static Field fields(Class<?> clazz, String fieldName) throws Exception {6        Field field = Whitebox.getField(clazz, fieldName);7        return field;8    }9}10package org.powermock.api.support.membermodification;11import java.lang.reflect.Field;12import org.powermock.api.support.membermodification.MemberMatcher;13public class MemberMatcher {14public static Field fields(Class<?> clazz, String fieldName) throws Exception {15        Field field = MemberMatcher.fields(clazz, fieldName);16        return field;17    }18}19package org.powermock.api.support.membermodification;20import java.lang.reflect.Field;21import org.powermock.api.support.membermodification.MemberMatcher;22public class MemberMatcher {23public static Field fields(Class<?> clazz, String fieldName) throws Exception {24        Field field = MemberMatcher.fields(clazz, fieldName);25        return field;26    }27}28package org.powermock.api.support.membermodification;29import java.lang.reflect.Field;30import org.powermock.api.support.membermodification.MemberMatcher;31public class MemberMatcher {32public static Field fields(Class<?> clazz, String fieldName) throws Exception {33        Field field = MemberMatcher.fields(clazz, fieldName);34        return field;35    }36}37package org.powermock.api.support.membermodification;38import java.lang.reflect.Field;39import org.powermock.api.support.membermodification.MemberMatcher;40public class MemberMatcher {41public static Field fields(Class<?> clazz, String fieldName) throws Exception {42        Field field = MemberMatcher.fields(clazz, fieldName);43        return field;44    }45}46package org.powermock.api.support.membermodification;47import java.lang.reflect.Field;48import org.powermock.api.support.membermodification.MemberMatcher;49public class MemberMatcher {50public static Field fields(Class<?> clazz, String fieldName) throws Exception {51        Field field = MemberMatcher.fields(clazz, fieldName);52        return field;

fields

Using AI Code Generation

1package org.powermock.api.support.membermodification;2import java.lang.reflect.Field;3import java.lang.reflect.Method;4import org.powermock.core.classloader.annotations.PrepareForTest;5import com.example.demo.Employee;6@PrepareForTest(Employee.class)7public class PowerMockMemberMatcher {8	public static void main(String[] args) throws Exception {9		Employee emp = new Employee();10		Field[] fields = MemberMatcher.fields(Employee.class);11		for(Field field : fields) {12			System.out.println("Field name : "+field.getName());13			System.out.println("Field value : "+field.get(emp));14		}15		Method[] methods = MemberMatcher.methods(Employee.class);16		for(Method method : methods) {17			System.out.println("Method name : "+method.getName());18			System.out.println("Method value : "+method.invoke(emp));19		}20	}21}22package org.powermock.api.support.membermodification;23import java.lang.reflect.Field;24import java.lang.reflect.Method;25import org.powermock.core.classloader.annotations.PrepareForTest;26import com.example.demo.Employee;27@PrepareForTest(Employee.class)28public class PowerMockMemberMatcher {29	public static void main(String[] args) throws Exception {30		Employee emp = new Employee();31		Field[] fields = MemberMatcher.fields(Employee.class);32		for(Field field : fields) {33			System.out.println("Field name : "+field.getName());34			System.out.println("Field value : "+field.get(emp));35		}36		Method[] methods = MemberMatcher.methods(Employee.class);37		for(Method method : methods) {38			System.out.println("Method name : "+method.getName());39			System.out.println("Method value : "+method.invoke(emp));

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