Join the 1-day Testing & QA Summit featuring 15+ Expert Speakers.Register for FREE! Join TestMu Conference

How to use assertThatMockingOfTheRuntimeSystemClassWorks method of samples.powermockito.junit4.rule.objenesis.SystemClassUserTest class

Best Powermock code snippet using samples.powermockito.junit4.rule.objenesis.SystemClassUserTest.assertThatMockingOfTheRuntimeSystemClassWorks

Source:SystemClassUserTest.java

...59        assertEquals("something", new SystemClassUser().performEncode());60    }61    62    @Test63    public void assertThatMockingOfTheRuntimeSystemClassWorks() throws Exception {64        mockStatic(Runtime.class);65        66        Runtime runtimeMock = mock(Runtime.class);67        Process processMock = mock(Process.class);68        69        when(Runtime.getRuntime()).thenReturn(runtimeMock);70        when(runtimeMock.exec("command")).thenReturn(processMock);71        72        assertSame(processMock, new SystemClassUser().executeCommand());73    }74    75    @Test76    public void assertThatMockingOfFinalSystemClassesWorks() throws Exception {77        mockStatic(System.class);...

assertThatMockingOfTheRuntimeSystemClassWorks

Using AI Code Generation

1PowerMockito can be used with JUnit 4 to mock the runtime class. This is important if you are using a library that uses the runtime class to instantiate objects. The following example shows how to mock the runtime class:2package samples.powermockito.junit4.rule.objenesis;3import org.junit.Rule;4import org.junit.Test;5import org.junit.runner.RunWith;6import org.powermock.core.classloader.annotations.PrepareForTest;7import org.powermock.modules.junit4.PowerMockRunner;8import org.powermock.modules.junit4.rule.PowerMockRule;9import org.powermock.reflect.Whitebox;10import samples.singleton.Singleton;11import static org.junit.Assert.*;12import static org.powermock.api.mockito.PowerMockito.*;13@RunWith(PowerMockRunner.class)14@PrepareForTest(Runtime.class)15public class RuntimeClassUserTest {16    public PowerMockRule rule = new PowerMockRule();17    public void assertThatMockingOfTheRuntimeClassWorks() throws Exception {18        Runtime mockRuntime = mock(Runtime.class);19        when(mockRuntime.exec(anyString())).thenReturn(null);20        whenNew(Runtime.class).withNoArguments().thenReturn(mockRuntime);21        Singleton singleton = new Singleton();22        assertNotNull(singleton.getValue());23        Whitebox.invokeMethod(singleton, "setValue", "Hello world");24        assertEquals("Hello world", singleton.getValue());25    }26}27package samples.powermockito.junit4.rule.objenesis;28import org.junit.Rule;29import org.junit.Test;30import org.junit.runner.RunWith;31import org.powermock.core

assertThatMockingOfTheRuntimeSystemClassWorks

Using AI Code Generation

1@RunWith(Enclosed.class)2public class EnclosedTest {3    public static class FirstTest {4        public void firstTest() {5        }6    }7    public static class SecondTest {8        public void secondTest() {9        }10    }11}12@RunWith(Parameterized.class)13public class ParameterizedTest {14    private int first;15    private int second;16    public ParameterizedTest(int first, int second) {17        this.first = first;18        this.second = second;19    }20    public static Collection<Object[]> data() {21        return Arrays.asList(new Object[][]{22            {1, 2},23            {2, 3},24            {3, 4},25            {4, 5}26        });27    }28    public void test() {29        assertEquals(first + 1, second);30    }31}32@RunWith(Suite.class)33@Suite.SuiteClasses({FirstTest.class, SecondTest.class})34public class SuiteTest {35}36public class TestRuleTest {37    public TemporaryFolder folder = new TemporaryFolder();38    public void testUsingTempFolder() throws IOException {39        File createdFile = folder.newFile("myfile.txt");40        File createdFolder = folder.newFolder("subfolder");41    }42}43public class IgnoreTest {44    public void test() {45    }46    public void ignoredTest() {47    }48}49public class IgnoreTest {50    public void test() {51    }52    @Ignore("For a good reason")53    public void ignoredTest() {54    }55}

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.