Unlock 30% off on Manual Testing Annual Plans this Holiday Season.

Copied to Clipboard!

How to use SystemClassUserCases class of powermock.modules.test.mockito.junit4.delegate package

Best Powermock code snippet using powermock.modules.test.mockito.junit4.delegate.SystemClassUserCases

Source:SystemClassUserTest.java

...23import org.junit.runners.model.Statement;24import org.powermock.core.classloader.annotations.PrepareForTest;25import org.powermock.modules.junit4.PowerMockRunner;26import org.powermock.modules.junit4.PowerMockRunnerDelegate;27import powermock.modules.test.mockito.junit4.delegate.SystemClassUserCases;28import powermock.modules.test.mockito.junit4.delegate.SystemClassUserMethod;29import samples.system.SystemClassUser;30/**31 * Demonstrates PowerMockito's ability to mock non-final and final system32 * classes. To mock a system class you need to prepare the calling class for33 * testing. I.e. let's say you're testing class A which interacts with34 * URLEncoder then you would do:35 *36 * <pre>37 *38 * &#064;PrepareForTest({A.class})39 *40 * </pre>41 */42@RunWith(PowerMockRunner.class)43@PowerMockRunnerDelegate(Parameterized.class)44@PrepareForTest({SystemClassUserCases.class, SystemClassUser.class})45public class SystemClassUserTest {46    final Statement test;47    public SystemClassUserTest(final SystemClassUserMethod testCase) {48        test = new Statement() {49            @Override50            public void evaluate() throws Throwable {51                try {52                    testCase.getMethod().invoke(new SystemClassUserCases());53                } catch (InvocationTargetException ex) {54                    throw ex.getTargetException();55                }56            }57        };58    }59    @Parameterized.Parameters(name = "{0}")60    public static List<?> paramValues() {61        List<Object[]> values = new ArrayList<Object[]>();62        for (SystemClassUserMethod tstCase : SystemClassUserMethod.values()) {63            values.add(new Object[]{tstCase});64        }65        return values;66    }...

SystemClassUserCases

Using AI Code Generation

1package powermock.modules.test.mockito.junit4.delegate;2import org.junit.Test;3import org.junit.runner.RunWith;4import org.powermock.api.mockito.PowerMockito;5import org.powermock.core.classloader.annotations.PrepareForTest;6import org.powermock.modules.junit4.PowerMockRunner;7@RunWith(PowerMockRunner.class)8@PrepareForTest(SystemClassUserCases.class)9public class SystemClassUserCasesTest {10    public void testSystemClassMocking() throws Exception {11        PowerMockito.mockStatic(System.class);12        PowerMockito.when(System.currentTimeMillis()).thenReturn(1000L);13        SystemClassUserCases systemClassUserCases = new SystemClassUserCases();14        systemClassUserCases.doSomething();15        PowerMockito.verifyStatic();16        System.currentTimeMillis();17    }18}19package powermock.modules.test.mockito.junit4.delegate;20public class SystemClassUserCases {21    public void doSomething() {22        System.out.println("The current time is: " + System.currentTimeMillis());23    }24}25package powermock.modules.test.mockito.junit4.finalmocking;26import org.junit.Test;27import org.junit.runner.RunWith;28import org.powermock.api.mockito.PowerMockito;29import org.powermock.core.classloader.annotations.PrepareForTest;30import org.powermock.modules.junit4.PowerMockRunner;31import static org.junit.Assert.assertEquals;32@RunWith(PowerMockRunner.class)33@PrepareForTest({ FinalClass.class })34public class FinalClassTest {35    public void testFinalClassMocking() throws Exception {36        FinalClass finalClass = PowerMockito.mock(FinalClass.class);37        PowerMockito.when(finalClass.doSomething()).thenReturn("Hello Mock");38        assertEquals("Hello Mock", finalClass.doSomething());39    }40}

SystemClassUserCases

Using AI Code Generation

1package powermock.modules.test.mockito.junit4.delegate;2import org.junit.Test;3import org.junit.runner.RunWith;4import org.powermock.api.mockito.PowerMockito;5import org.powermock.core.classloader.annotations.PowerMockIgnore;6import org.powermock.core.classloader.annotations.PrepareForTest;7import org.powermock.modules.junit4.PowerMockRunner;8import org.powermock.reflect.Whitebox;9import org.powermock.reflect.exceptions.FieldNotFoundException;10import org.powermock.reflect.exceptions.MethodNotFoundException;11import org.powermock.reflect.exceptions.TooManyMethodsFoundException;12import org.powermock.reflect.exceptions.TooManyFieldsFoundException;13import static org.junit.Assert.assertEquals;14import static org.junit.Assert.assertTrue;15import static org.junit.Assert.fail;16import java.lang.reflect.Field;17import java.lang.reflect.Method;18import java.lang.reflect.Modifier;19import java.util.ArrayList;20import java.util.Arrays;21import java.util.List;22import java.util.logging.Level;23import java.util.logging.Logger;24import static org.junit.Assert.assertFalse;25import static org.powermock.api.mockito.PowerMockito.mock;26import static org.powermock.api.mockito.PowerMockito.when;27import static org.powermock.api.mockito.PowerMockito.whenNew;28import org.powermock.api.support.membermodification.MemberMatcher;29import org.powermock.api.support.membermodification.MemberModifier;30import org.powermock.core.classloader.annotations.PrepareOnlyThisForTest;31import org.powermock.core.classloader.annotations.SuppressStaticInitializationFor;32import org.powermock.modules.test.mockito.junit4.delegate.SystemClassUserCases;33import org.powermock.reflect.internal.WhiteboxImpl;34import org.powermock.reflect.testclasses.ClassWithFinalMethod;35import org.powermock.reflect.testclasses.ClassWithFinalMethods;36import org.powermock.reflect.testclasses.ClassWithFinalMethodsAndFinalFields;37import org.powermock.reflect.testclasses.ClassWithFinalMethodsAndFinalFieldsAndFinalInnerClasses;38import org.powermock.reflect.testclasses.ClassWithFinalMethodsAndFinalFieldsAndFinalInnerClassesAndFinalStaticMethods;39import org.powermock.reflect.testclasses.ClassWithFinalMethodsAndFinalFieldsAndFinalInnerClassesAndFinalStaticMethodsAndFinalStaticFields;40import org.powermock.reflect.testclasses.ClassWithFinalMethodsAndFinalFieldsAndFinalInnerClassesAndFinalStaticMethodsAndFinalStaticFieldsAndFinalInnerStaticClasses;41import org.powermock.reflect.testclasses.ClassWithFinalMethodsAndFinalFieldsAndFinalInnerClassesAndFinalStaticMethodsAndFinalStaticFieldsAndFinalInnerStaticClassesAndFinalInnerInnerClasses;42import org.powermock.reflect.testclasses.ClassWithFinalMethodsAndFinalFieldsAndFinal

SystemClassUserCases

Using AI Code Generation

1import java.io.BufferedReader;2import java.io.IOException;3import java.io.InputStreamReader;4import java.util.ArrayList;5import java.util.List;6import org.junit.Test;7import org.junit.runner.RunWith;8import org.powermock.api.mockito.PowerMockito;9import org.powermock.core.classloader.annotations.PrepareForTest;10import org.powermock.modules.junit4.PowerMockRunner;11import powermock.modules.test.mockito.junit4.delegate.SystemClassUserCases;12import static org.junit.Assert.assertEquals;13import static org.junit.Assert.assertFalse;14import static org.junit.Assert.assertTrue;15import static org.mockito.Matchers.anyString;16import static org.mockito.Mockito.mock;17import static org.mockito.Mockito.when;18@RunWith(PowerMockRunner.class)19@PrepareForTest({ SystemClassUserCases.class })20public class SystemClassUserCasesTest {21    public void testGetSystemProperties() throws Exception {22        String[] expectedProperties = { "java.version", "java.vendor", "java.vendor.url", "java.home", "java.vm.specification.version", "java.vm.specification.vendor", "java.vm.specification.name", "java.vm.version", "java.vm.vendor", "java.vm.name", "java.specification.version", "java.specification.vendor", "java.specification.name", "java.class.version", "java.class.path", "java.library.path", "java.io.tmpdir", "java.compiler", "java.ext.dirs", "os.name", "os.arch", "os.version", "file.separator", "path.separator", "line.separator", "user.name", "user.home", "user.dir" };23        String[] systemProperties = SystemClassUserCases.getSystemProperties();24        assertEquals(expectedProperties.length, systemProperties.length);25        for (int i = 0; i < systemProperties.length; i++) {26            assertEquals(expectedProperties[i], systemProperties[i]);27        }28    }29    public void testGetSystemProperty() throws Exception {30        String expectedProperty = "java.version";31        String systemProperty = SystemClassUserCases.getSystemProperty();32        assertEquals(expectedProperty, systemProperty);33    }34    public void testGetSystemPropertyWithDefaultValue() throws Exception {35        String expectedProperty = "java.version";36        String systemProperty = SystemClassUserCases.getSystemPropertyWithDefaultValue();37        assertEquals(expectedProperty, systemProperty);38    }

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.