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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}

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