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How to use stub method of org.powermock.api.support.membermodification.MemberModifier class

Best Powermock code snippet using org.powermock.api.support.membermodification.MemberModifier.stub

Source:MemberModificationExampleTest.java

...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(...

Source:PowerMockMemberModifierSupport.java

...78        MemberModifier.suppress(accessibleObjects);79    }80    /**81     * Add a method that should be intercepted and return another value (i.e.82     * the method is stubbed).83     */84    protected final <T> MethodStubStrategy<T> stub(Method method) {85        return MemberModifier.stub(method);86    }87    /**88     * Replace a method invocation.89     */90    protected final MethodReplaceStrategy replace(Method method) {91        return MemberModifier.replace(method);92    }93}...

Source:MyClass1Test.java

...7import java.lang.reflect.Method;8import static org.junit.Assert.assertEquals;9import static org.powermock.api.support.membermodification.MemberMatcher.method;10import static org.powermock.api.support.membermodification.MemberModifier.replace;11import static org.powermock.api.support.membermodification.MemberModifier.stub;12@PrepareForTest(MyClass1.class)13@RunWith(PowerMockRunner.class)14public class MyClass1Test {15    @Test16    public void testStubbingStaticMethod() throws Exception {17        stub(method(MyClass1.class, "hello")).toReturn("Hello World");18        assertEquals("Hello World", MyClass1.hello("Frank Oh"));19    }20    @Test21    public void testStubbingPrivateMethod() throws Exception {22        stub(method(MyClass1.class, "goodbye")).toReturn("Something");23        assertEquals("Something", new MyClass1().goodByeWrapper("Frank Oh"));24    }25    @Test26    public void testReplacingStaticMethod() throws Exception {27        replace(method(MyClass1.class, "hello")).with(28                new InvocationHandler() {29                    public Object invoke(Object object, Method method,30                                         Object[] arguments) throws Throwable {31                        if (arguments[0].equals("John")) {32                            return "Hello John, you are awesome!";33                        } else {34                            return method.invoke(object, arguments);35                        }36                    }...

stub

Using AI Code Generation

1package org.powermock.examples.tutorial.membermodification;2import static org.junit.Assert.assertEquals;3import static org.powermock.api.support.membermodification.MemberMatcher.method;4import static org.powermock.api.support.membermodification.MemberModifier.stub;5import org.junit.Test;6import org.junit.runner.RunWith;7import org.powermock.core.classloader.annotations.PrepareForTest;8import org.powermock.modules.junit4.PowerMockRunner;9@RunWith(PowerMockRunner.class)10@PrepareForTest({ UtilityClass.class })11public class StubMethodTest {12    public void testStubMethod() throws Exception {13        stub(method(UtilityClass.class, "staticMethod", String.class)).toReturn("New expected result");14        assertEquals("New expected result", UtilityClass.staticMethod("irrelevant"));15    }16}17package org.powermock.examples.tutorial.membermodification;18import static org.junit.Assert.assertEquals;19import static org.powermock.api.support.membermodification.MemberModifier.stub;20import org.junit.Test;21import org.junit.runner.RunWith;22import org.powermock.core.classloader.annotations.PrepareForTest;23import org.powermock.modules.junit4.PowerMockRunner;24@RunWith(PowerMockRunner.class)25@PrepareForTest({ UtilityClass.class })26public class StubMethodTest {27    public void testStubMethod() throws Exception {28        stub(method(UtilityClass.class, "staticMethod", String.class)).toReturn("New expected result");29        assertEquals("New expected result", UtilityClass.staticMethod("irrelevant"));30    }31}32package org.powermock.examples.tutorial.membermodification;33import static org.junit.Assert.assertEquals;34import static org.powermock.api.support.membermodification.MemberModifier.stub;35import org.junit.Test;36import org.junit.runner.RunWith;37import org.powermock.core.classloader.annotations.PrepareForTest;38import org.powermock.modules.junit4.PowerMockRunner;39@RunWith(PowerMockRunner.class)40@PrepareForTest({ UtilityClass.class })41public class StubMethodTest {42    public void testStubMethod() throws Exception {43        stub(method(UtilityClass.class, "staticMethod", String.class)).toReturn("New expected result");44        assertEquals("New expected result", UtilityClass.staticMethod("irrelevant"));45    }46}

stub

Using AI Code Generation

1import java.util.ArrayList;2import java.util.List;3import org.powermock.api.support.membermodification.MemberModifier;4import org.powermock.core.classloader.annotations.PrepareForTest;5import org.testng.Assert;6import org.testng.annotations.Test;7@PrepareForTest({ClassToBeMocked.class})8public class ClassToBeMockedTest {9    public void test() throws Exception {10        List<String> list = new ArrayList<String>();11        list.add("first");12        list.add("second");13        list.add("third");14        list.add("fourth");15        list.add("fifth");16        ClassToBeMocked classToBeMocked = new ClassToBeMocked();17        MemberModifier.field(ClassToBeMocked.class, "list").set(classToBeMocked, list);18        Assert.assertEquals(classToBeMocked.getList().size(), 5);19    }20}

stub

Using AI Code Generation

1package com.powermock;2import java.util.ArrayList;3import java.util.List;4import org.junit.Assert;5import org.junit.Test;6import org.junit.runner.RunWith;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;11@RunWith(PowerMockRunner.class)12@PrepareForTest(MyClass.class)13public class MyClassTest {14    public void test() throws Exception {15        MyClass myClass = new MyClass();16        List<String> list = new ArrayList<String>();17        list.add("test");18        MemberModifier.stub(MemberModifier.method(MyClass.class, "getList")).toReturn(list);19        List<String> list1 = Whitebox.invokeMethod(myClass, "getList");20        Assert.assertEquals(list, list1);21    }22}23package com.powermock;24import java.util.ArrayList;25import java.util.List;26import org.junit.Assert;27import org.junit.Test;28import org.junit.runner.RunWith;29import org.powermock.api.support.membermodification.MemberModifier;30import org.powermock.core.classloader.annotations.PrepareForTest;31import org.powermock.modules.junit4.PowerMockRunner;32import org.powermock.reflect.Whitebox;33@RunWith(PowerMockRunner.class)34@PrepareForTest(MyClass.class)35public class MyClassTest {36    public void test() throws Exception {37        MyClass myClass = new MyClass();38        List<String> list = new ArrayList<String>();39        list.add("test");40        MemberModifier.stub(MemberModifier.field(MyClass.class, "list")).toReturn(list);41        List<String> list1 = Whitebox.getInternalState(myClass, "list");42        Assert.assertEquals(list, list1);43    }44}45package com.powermock;46import java.util.ArrayList;47import java.util.List;48import org.junit.Assert;49import org.junit.Test;50import org.junit.runner.RunWith;51import org.powermock.api.support.membermodification.MemberModifier;52import org.powermock.core.classloader.annotations.PrepareForTest;53import org.powermock.modules.junit4.PowerMockRunner;54import org.powermock.reflect.Whitebox;55@RunWith(PowerMockRunner.class)56@PrepareForTest(MyClass.class)57public class MyClassTest {

stub

Using AI Code Generation

1package org.powermock.examples.tutorial.membermodification;2import static org.junit.Assert.assertEquals;3import static org.junit.Assert.assertTrue;4import static org.powermock.api.support.membermodification.MemberMatcher.method;5import static org.powermock.api.support.membermodification.MemberModifier.stub;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( { SystemUnderTest.class })12public class SystemUnderTestStubMethodTest {13	public void testStubMethod() throws Exception {14		final String expected = "expected";15		stub(method(SystemUnderTest.class, "methodToTest")).toReturn(expected);16		final String actual = new SystemUnderTest().methodToTest();17		assertEquals(expected, actual);18	}19}20package org.powermock.examples.tutorial.membermodification;21import static org.junit.Assert.assertEquals;22import static org.junit.Assert.assertTrue;23import static org.powermock.api.support.membermodification.MemberMatcher.method;24import static org.powermock.api.support.membermodification.MemberModifier.stub;25import org.junit.Test;26import org.junit.runner.RunWith;27import org.powermock.core.classloader.annotations.PrepareForTest;28import org.powermock.modules.junit4.PowerMockRunner;29@RunWith(PowerMockRunner.class)30@PrepareForTest( { SystemUnderTest.class })31public class SystemUnderTestStubStaticMethodTest {32	public void testStubStaticMethod() throws Exception {33		final String expected = "expected";34		stub(method(SystemUnderTest.class, "staticMethodToTest")).toReturn(expected);35		final String actual = SystemUnderTest.staticMethodToTest();36		assertEquals(expected, actual);37	}38}39package org.powermock.examples.tutorial.membermodification;40import static org.junit.Assert.assertEquals;41import static org.junit.Assert.assertTrue;42import static org.powermock.api.support.membermodification.MemberMatcher.constructor;43import static org.powermock.api.support.membermodification.MemberModifier.suppress;44import org.junit.Test;45import org.junit.runner.RunWith;46import org.powermock.core.classloader.annotations.PrepareForTest;47import org.powermock.modules.junit4.PowerMockRunner;48@RunWith(PowerMockRunner.class)

stub

Using AI Code Generation

1package com.powermock;2import static org.powermock.api.support.membermodification.MemberModifier.stub;3import org.junit.Assert;4import org.junit.Test;5import org.junit.runner.RunWith;6import org.powermock.core.classloader.annotations.PrepareForTest;7import org.powermock.modules.junit4.PowerMockRunner;8@RunWith(PowerMockRunner.class)9@PrepareForTest(StaticClass.class)10public class StubStaticMethodTest {11	public void testStubStaticMethod() throws Exception {12		stub(MemberModifier.method(StaticClass.class, "staticMethod")).toReturn("PowerMock");13		Assert.assertEquals("PowerMock", StaticClass.staticMethod());14	}15}

stub

Using AI Code Generation

1package com.powermock;2import java.lang.reflect.Field;3import org.powermock.api.support.membermodification.MemberModifier;4public class StubMethodExample {5	public static void main(String[] args) {6		StubMethodExample stubMethodExample = new StubMethodExample();7		stubMethodExample.stubMethod();8	}9	public void stubMethod() {10		try {11			MemberModifier.stub(MemberModifier.method(StubMethodExample.class, "privateMethod", String.class)).toReturn("Hello");12		} catch (Exception e) {13			e.printStackTrace();14		}15		System.out.println(privateMethod("World"));16	}17	private String privateMethod(String name) {18		return "Hello " + name;19	}20}21package com.powermock;22import java.lang.reflect.Field;23import org.powermock.api.support.membermodification.MemberModifier;24public class StubMethodExample {25	public static void main(String[] args) {26		StubMethodExample stubMethodExample = new StubMethodExample();27		stubMethodExample.stubMethod();28	}29	public void stubMethod() {30		try {31			MemberModifier.stub(MemberModifier.method(StubMethodExample.class, "privateMethod", String.class)).toReturn("Hello");32		} catch (Exception e) {33			e.printStackTrace();34		}35		System.out.println(privateMethod("World"));36	}37	private String privateMethod(String name) {38		return "Hello " + name;39	}40}41package com.powermock;42import java.lang.reflect.Field;43import org.powermock.api.support.membermodification.MemberModifier;44public class StubMethodExample {45	public static void main(String[] args) {46		StubMethodExample stubMethodExample = new StubMethodExample();47		stubMethodExample.stubMethod();48	}49	public void stubMethod() {50		try {51			MemberModifier.stub(MemberModifier.method(

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