Best Powermock code snippet using org.powermock.api.support.membermodification.MemberMatcher.everythingDeclaredIn
Source:MemberModificationExampleTest.java
...34import static org.junit.Assert.assertThat;35import static org.junit.Assert.fail;36import static org.powermock.api.support.membermodification.MemberMatcher.constructor;37import static org.powermock.api.support.membermodification.MemberMatcher.constructorsDeclaredIn;38import static org.powermock.api.support.membermodification.MemberMatcher.everythingDeclaredIn;39import static org.powermock.api.support.membermodification.MemberMatcher.field;40import static org.powermock.api.support.membermodification.MemberMatcher.method;41import static org.powermock.api.support.membermodification.MemberMatcher.methods;42import static org.powermock.api.support.membermodification.MemberMatcher.methodsDeclaredIn;43import static org.powermock.api.support.membermodification.MemberModifier.replace;44import static org.powermock.api.support.membermodification.MemberModifier.stub;45import static org.powermock.api.support.membermodification.MemberModifier.suppress;46/**47 * Demonstrates PowerMock's ability to modify member structures.48 */49@RunWith(PowerMockRunner.class)50@PrepareForTest({SuppressMethod.class, SuppressField.class, SuppressEverything.class})51public class MemberModificationExampleTest {52 @Rule53 public PowerMockRule powerMockRule = new PowerMockRule();54 @Test55 public void suppressSingleMethodExample() throws Exception {56 suppress(method(SuppressMethod.class, "getObject"));57 assertNull(new SuppressMethod().getObject());58 }59 @Test60 public void suppressMultipleMethodsExample1() throws Exception {61 suppress(methods(SuppressMethod.class, "getObject", "getInt"));62 assertNull(new SuppressMethod().getObject());63 assertEquals(0, new SuppressMethod().getInt());64 }65 @Test66 public void suppressMultipleMethodsExample2() throws Exception {67 suppress(methods(method(SuppressMethod.class, "getObject"), method(SuppressMethod.class, "getInt")));68 assertNull(new SuppressMethod().getObject());69 assertEquals(0, new SuppressMethod().getInt());70 }71 @Test72 public void suppressAllMethodsExample() throws Exception {73 suppress(methodsDeclaredIn(SuppressMethod.class));74 final SuppressMethod tested = new SuppressMethod();75 assertNull(tested.getObject());76 assertNull(SuppressMethod.getObjectStatic());77 assertEquals(0, tested.getByte());78 }79 @Test80 public void suppressSingleFieldExample() throws Exception {81 suppress(field(SuppressField.class, "domainObject"));82 SuppressField tested = new SuppressField();83 assertNull(tested.getDomainObject());84 }85 @Test86 public void suppressConstructorExample() throws Exception {87 suppress(constructor(SuppressConstructorHierarchy.class));88 SuppressConstructorHierarchy tested = new SuppressConstructorHierarchy("message");89 assertEquals(42, tested.getNumber());90 assertNull(tested.getMessage());91 }92 @Test93 public void stubSingleMethodExample() throws Exception {94 final String expectedReturnValue = "new";95 stub(method(SuppressMethod.class, "getObject")).toReturn(expectedReturnValue);96 final SuppressMethod tested = new SuppressMethod();97 assertEquals(expectedReturnValue, tested.getObject());98 assertEquals(expectedReturnValue, tested.getObject());99 }100 @Test101 public void duckTypeStaticMethodExample() throws Exception {102 replace(method(SuppressMethod.class, "getObjectStatic")).with(103 method(StaticAndInstanceDemo.class, "getStaticMessage"));104 assertEquals(SuppressMethod.getObjectStatic(), StaticAndInstanceDemo.getStaticMessage());105 }106 @Test107 public void whenReplacingMethodWithAMethodOfIncorrectReturnTypeThenAnIAEIsThrown() throws Exception {108 try {109 replace(method(SuppressMethod.class, "getObjectStatic")).with(110 method(StaticAndInstanceDemo.class, "aVoidMethod"));111 fail("Should thow IAE");112 } catch (Exception e) {113 assertEquals("The replacing method (public static void samples.staticandinstance.StaticAndInstanceDemo.aVoidMethod()) needs to return java.lang.Object and not void.", e.getMessage());114 }115 }116 @Test117 public void whenReplacingMethodWithAMethodOfWithIncorrectParametersThenAnIAEIsThrown() throws Exception {118 try {119 replace(method(SuppressMethod.class, "getObjectStatic")).with(120 method(StaticAndInstanceDemo.class, "aMethod2"));121 fail("Should thow IAE");122 } catch (Exception e) {123 assertEquals("The replacing method, \"public static java.lang.Object samples.staticandinstance.StaticAndInstanceDemo.aMethod2(java.lang.String)\", needs to have the same number of parameters of the same type as as method \"public static java.lang.Object samples.suppressmethod.SuppressMethod.getObjectStatic()\".", e.getMessage());124 }125 }126 @Test127 public void changingReturnValueExample() throws Exception {128 replace(method(SuppressMethod.class, "getObjectWithArgument")).with(new ReturnValueChangingInvocationHandler());129 final SuppressMethod tested = new SuppressMethod();130 assertThat(tested.getObjectWithArgument("don't do anything"), is(instanceOf(Object.class)));131 assertEquals("hello world", tested.getObjectWithArgument("make it a string"));132 }133 @Test134 public void suppressAllConstructors() throws Exception {135 suppress(constructorsDeclaredIn(SuppressEverything.class));136 SuppressEverything suppressEverything = new SuppressEverything();137 new SuppressEverything("test");138 try {139 suppressEverything.something();140 fail("Should throw ISE");141 } catch (IllegalStateException e) {142 assertEquals("error", e.getMessage());143 }144 }145 @Test146 public void suppressEverythingExample() throws Exception {147 suppress(everythingDeclaredIn(SuppressEverything.class));148 SuppressEverything suppressEverything = new SuppressEverything();149 new SuppressEverything("test");150 suppressEverything.something();151 suppressEverything.somethingElse();152 }153 private final class ReturnValueChangingInvocationHandler implements InvocationHandler {154 @Override155 public Object invoke(Object object, Method method, Object[] arguments) throws Throwable {156 if (arguments[0].equals("make it a string")) {157 return "hello world";158 } else {159 return method.invoke(object, arguments);160 }161 }...
Source:MyClass2Test.java
...5import org.powermock.modules.junit4.PowerMockRunner;6import static org.junit.Assert.assertNull;7import static org.powermock.api.support.membermodification.MemberMatcher.constructor;8import static org.powermock.api.support.membermodification.MemberMatcher.constructorsDeclaredIn;9import static org.powermock.api.support.membermodification.MemberMatcher.everythingDeclaredIn;10import static org.powermock.api.support.membermodification.MemberMatcher.methodsDeclaredIn;11import static org.powermock.api.support.membermodification.MemberModifier.suppress;12@PrepareForTest(MyClass2.class)13@RunWith(PowerMockRunner.class)14public class MyClass2Test {15 @Test16 public void testSupressingConstructorMethod() throws Exception {17 suppress(constructor(MyClass2.class));18 assertNull(new MyClass2().getStr());19 }20 @Test21 public void testSupressingAllConstructorMethod() throws Exception {22 suppress(constructorsDeclaredIn(MyClass2.class));23 assertNull(new MyClass2("test").getStr());24 }25 @Test26 public void testSupressingAllMethods() throws Exception {27 suppress(methodsDeclaredIn(MyClass2.class));28 assertNull(new MyClass2("test").getStr());29 }30 @Test31 public void testSupressingEntireClass() throws Exception {32 suppress(everythingDeclaredIn(MyClass2.class));33 assertNull(new MyClass2("test").getStr());34 }35}...
everythingDeclaredIn
Using AI Code Generation
1package org.powermock.examples.tutorial.membermodification;2import org.junit.Test;3import org.junit.runner.RunWith;4import org.powermock.core.classloader.annotations.PrepareForTest;5import org.powermock.modules.junit4.PowerMockRunner;6import org.powermock.api.support.membermodification.MemberMatcher;7import java.lang.reflect.Method;8import java.lang.reflect.Field;9import java.lang.reflect.Constructor;10import static org.junit.Assert.assertEquals;11import static org.junit.Assert.assertNotNull;12import static org.junit.Assert.assertNull;13@RunWith(PowerMockRunner.class)14@PrepareForTest({MemberMatcher.class})15public class MemberMatcherTest {16 public void testEverythingDeclaredIn() throws Exception {17 Class<?>[] classes = MemberMatcher.everythingDeclaredIn(Foo.class);18 assertEquals(2, classes.length);19 assertEquals("org.powermock.examples.tutorial.membermodification.Foo", classes[0].getName());20 assertEquals("org.powermock.examples.tutorial.membermodification.Foo$Bar", classes[1].getName());21 Method[] methods = MemberMatcher.everythingDeclaredIn(Foo.class);22 assertEquals(2, methods.length);23 assertEquals("foo", methods[0].getName());24 assertEquals("bar", methods[1].getName());25 Field[] fields = MemberMatcher.everythingDeclaredIn(Foo.class);26 assertEquals(1, fields.length);27 assertEquals("foo", fields[0].getName());28 Constructor<?>[] constructors = MemberMatcher.everythingDeclaredIn(Foo.class);29 assertEquals(1, constructors.length);30 assertEquals(0, constructors[0].getParameterTypes().length);31 }32 public void testEverythingDeclaredInWithNull() throws Exception {33 Class<?>[] classes = MemberMatcher.everythingDeclaredIn(null);34 assertEquals(0, classes.length);35 Method[] methods = MemberMatcher.everythingDeclaredIn(null);36 assertEquals(0, methods.length);37 Field[] fields = MemberMatcher.everythingDeclaredIn(null);38 assertEquals(0, fields.length);39 Constructor<?>[] constructors = MemberMatcher.everythingDeclaredIn(null);40 assertEquals(0, constructors.length);41 }42 public void testEverythingDeclaredInWithNonClass() throws Exception {43 Class<?>[] classes = MemberMatcher.everythingDeclaredIn(String.class);44 assertEquals(0, classes.length);45 Method[] methods = MemberMatcher.everythingDeclaredIn(String.class);46 assertEquals(0, methods.length);
everythingDeclaredIn
Using AI Code Generation
1package org.powermock.examples.tutorial.membermodification;2import org.powermock.api.support.membermodification.MemberMatcher;3import org.powermock.api.support.membermodification.MemberModifier;4import org.powermock.core.classloader.annotations.PrepareForTest;5import org.powermock.modules.junit4.PowerMockRunner;6import org.powermock.modules.junit4.PowerMockRunnerDelegate;7import org.junit.Test;8import org.junit.runner.RunWith;9import org.junit.runners.JUnit4;10import java.lang.reflect.Field;11import java.lang.reflect.Method;12import static org.junit.Assert.assertEquals;13import static org.junit.Assert.assertTrue;14import static org.powermock.api.support.membermodification.MemberMatcher.*;15@RunWith(PowerMockRunner.class)16@PowerMockRunnerDelegate(JUnit4.class)17@PrepareForTest({ClassWithFinalMethods.class})18public class ClassWithFinalMethodsTest {19 public void testEverythingDeclaredIn() throws Exception {20 MemberModifier.suppress(21 everythingDeclaredIn(ClassWithFinalMethods.class)22 .excluding(MemberMatcher.method(ClassWithFinalMethods.class, "staticFinalMethod"))23 );24 final ClassWithFinalMethods classWithFinalMethods = new ClassWithFinalMethods();25 assertTrue(classWithFinalMethods.finalMethod());26 assertEquals(0, ClassWithFinalMethods.staticFinalMethod());27 assertEquals(0, classWithFinalMethods.callPrivateMethod());28 assertEquals(0, ClassWithFinalMethods.callPrivateStaticMethod());29 assertEquals(0, classWithFinalMethods.callPrivateFinalMethod());30 assertEquals(0, ClassWithFinalMethods.callPrivateFinalStaticMethod());31 assertEquals(0, ClassWithFinalMethods.callPrivateStaticFinalMethod());32 assertEquals(0, classWithFinalMethods.callPrivateFinalStaticMethod());33 assertEquals(0, classWithFinalMethods.callPrivateFinalStaticMethod());34 assertEquals(0, classWithFinalMethods.callPrivateStaticFinalMethod());35 assertEquals(0, classWithFinalMethods.callPrivateFinalStaticMethod());
everythingDeclaredIn
Using AI Code Generation
1import org.powermock.api.support.membermodification.MemberMatcher;2import org.powermock.api.support.membermodification.MemberModifier;3import org.powermock.reflect.Whitebox;4import java.lang.reflect.Field;5import java.lang.reflect.Method;6import java.util.ArrayList;7import java.util.List;8public class 4 {9 private static final String CLASS_NAME = "com.example.demo.DemoClass";10 private static final String FIELD_NAME = "list";11 private static final String METHOD_NAME = "printList";12 public static void main(String[] args) throws Exception {13 Class<?> classObject = Class.forName(CLASS_NAME);14 Object classInstance = classObject.newInstance();15 Field field = classObject.getDeclaredField(FIELD_NAME);16 Method method = classObject.getDeclaredMethod(METHOD_NAME);17 Field[] declaredFields = MemberMatcher.fieldsDeclaredIn(classObject);18 Method[] declaredMethods = MemberMatcher.methodsDeclaredIn(classObject);19 Field[] allFields = MemberMatcher.fields(classObject, MemberMatcher.any());20 Method[] allMethods = MemberMatcher.methods(classObject, MemberMatcher.any());21 Field[] publicFields = MemberMatcher.fields(classObject, MemberMatcher.isPublic());22 Method[] publicMethods = MemberMatcher.methods(classObject, MemberMatcher.isPublic());23 Field[] privateFields = MemberMatcher.fields(classObject, MemberMatcher.isPrivate());24 Method[] privateMethods = MemberMatcher.methods(classObject, MemberMatcher.isPrivate());25 Field[] protectedFields = MemberMatcher.fields(classObject, MemberMatcher.isProtected());26 Method[] protectedMethods = MemberMatcher.methods(classObject, MemberMatcher.isProtected());27 Field[] staticFields = MemberMatcher.fields(classObject, MemberMatcher.isStatic());28 Method[] staticMethods = MemberMatcher.methods(classObject, MemberMatcher.isStatic());
everythingDeclaredIn
Using AI Code Generation
1import org.powermock.api.support.membermodification.MemberMatcher;2import org.powermock.api.support.membermodification.MemberModifier;3import org.powermock.reflect.Whitebox;4import java.lang.reflect.Method;5public class 4 {6 public static void main(String[] args) {7 MemberModifier.suppress(MemberMatcher.methodsDeclaredIn(4.class));8 System.out.println("Everything declared in 4 class is suppressed");9 }10}11import org.powermock.api.support.membermodification.MemberMatcher;12import org.powermock.api.support.membermodification.MemberModifier;13import org.powermock.reflect.Whitebox;14import java.lang.reflect.Method;15public class 5 {16 public static void main(String[] args) {17 MemberModifier.suppress(MemberMatcher.methodsDeclaredIn(5.class));18 System.out.println("Everything declared in 5 class is suppressed");19 }20}21import org.powermock.api.support.membermodification.MemberMatcher;22import org.powermock.api.support.membermodification.MemberModifier;23import org.powermock.reflect.Whitebox;24import java.lang.reflect.Method;25public class 6 {26 public static void main(String[] args) {27 MemberModifier.suppress(MemberMatcher.methodsDeclaredIn(6.class));28 System.out.println("Everything declared in 6 class is suppressed");29 }30}31import org.powermock.api.support.membermodification.MemberMatcher;32import org.powermock.api.support.membermodification.MemberModifier;33import org.powermock.reflect.Whitebox;34import java.lang.reflect.Method;35public class 7 {36 public static void main(String[] args) {37 MemberModifier.suppress(MemberMatcher.methodsDeclaredIn(7.class));38 System.out.println("Everything declared in 7 class is suppressed");39 }40}41import org.powermock.api.support.membermodification.MemberMatcher;42import org.powermock.api.support.membermodification.MemberModifier;43import org.powermock.reflect.Whitebox;44import java.lang.reflect.Method;45public class 8 {46 public static void main(String[] args) {47 MemberModifier.suppress(MemberMatcher.methodsDeclaredIn(
everythingDeclaredIn
Using AI Code Generation
1package com.powermock;2import static org.powermock.api.support.membermodification.MemberMatcher.methodsDeclaredIn;3import java.lang.reflect.Method;4public class 4 {5 public static void main(String[] args) {6 Method[] methods = methodsDeclaredIn(Object.class);7 for (Method method : methods) {8 System.out.println(method.getName());9 }10 }11}
everythingDeclaredIn
Using AI Code Generation
1package org.powermock.examples.tutorial.membermodification;2import org.powermock.api.support.membermodification.MemberMatcher;3import org.powermock.core.classloader.annotations.PrepareForTest;4@PrepareForTest({MemberMatcher.class})5public class MemberMatcherExample {6 public void testEverythingDeclaredIn() {7 MemberMatcher.method(MemberMatcherExample.class, "testEverythingDeclaredIn");8 }9}10package org.powermock.examples.tutorial.membermodification;11import org.powermock.api.support.membermodification.MemberMatcher;12import org.powermock.core.classloader.annotations.PrepareForTest;13@PrepareForTest({MemberMatcher.class})14public class MemberMatcherExample {15 public void testEverythingDeclaredIn() {16 MemberMatcher.method(MemberMatcherExample.class, "testEverythingDeclaredIn");17 }18}19package org.powermock.examples.tutorial.membermodification;20import org.powermock.api.support.membermodification.MemberMatcher;21import org.powermock.core.classloader.annotations.PrepareForTest;22@PrepareForTest({MemberMatcher.class})23public class MemberMatcherExample {24 public void testEverythingDeclaredIn() {25 MemberMatcher.method(MemberMatcherExample.class, "testEverythingDeclaredIn");26 }27}28package org.powermock.examples.tutorial.membermodification;29import org.powermock.api.support.membermodification.MemberMatcher;30import org.powermock.core.classloader.annotations.PrepareForTest;31@PrepareForTest({MemberMatcher.class})32public class MemberMatcherExample {33 public void testEverythingDeclaredIn() {34 MemberMatcher.method(MemberMatcherExample.class, "testEverythingDeclaredIn");35 }36}37package org.powermock.examples.tutorial.membermodification;38import org.powermock.api.support.membermodification.MemberMatcher;39import org.powermock.core.classloader.annotations.PrepareForTest;40@PrepareForTest({MemberMatcher.class})41public class MemberMatcherExample {42 public void testEverythingDeclaredIn() {43 MemberMatcher.method(MemberMatcherExample.class, "testEverythingDeclaredIn");44 }45}
everythingDeclaredIn
Using AI Code Generation
1import org.powermock.api.support.membermodification.MemberMatcher;2import org.powermock.api.support.membermodification.MemberModifier;3public class Test {4 public static void main(String[] args) {5 Class<?>[] clazzes = MemberMatcher.everythingDeclaredIn(Test.class);6 for (Class<?> clazz : clazzes) {7 System.out.println(clazz);8 }9 }10}
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.
You could also refer to video tutorials over LambdaTest YouTube channel to get step by step demonstration from industry experts.
Get 100 minutes of automation test minutes FREE!!