Best Powermock code snippet using samples.powermockito.junit4.whennew.VerifyNewWithoutWhenNewTest
Source:VerifyNewWithoutWhenNewTest.java
...10import static org.junit.Assert.fail;11import static org.powermock.api.mockito.PowerMockito.verifyNew;12@PrepareForTest(ExpectNewDemo.class)13@RunWith(PowerMockRunner.class)14public class VerifyNewWithoutWhenNewTest {15 @Test16 // TODO This should actually work in the future when issue 148 is resolved.17 public void verifyingNewWithoutExpectationWhenNoArgumentsThrowsISE() throws Exception {18 ExpectNewDemo tested = new ExpectNewDemo();19 assertEquals("Hello world", tested.getMessage());20 try {21 verifyNew(MyClass.class).withNoArguments();22 fail("IllegalStateException expected");23 } catch (IllegalStateException e) {24 assertEquals("No instantiation of class samples.newmocking.MyClass was recorded "25 + "during the test. Note that only expected object creations "26 + "(e.g. those using whenNew(..)) can be verified.", e.getMessage());27 }28 }...
VerifyNewWithoutWhenNewTest
Using AI Code Generation
1package samples.powermockito.junit4.whennew;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.reflect.Whitebox;7import java.lang.reflect.Constructor;8import static org.junit.Assert.assertEquals;9import static org.powermock.api.mockito.PowerMockito.*;10@RunWith(PowerMockRunner.class)11@PrepareForTest(VerifyNewWithoutWhenNewTest.class)12public class VerifyNewWithoutWhenNewTest {13 public void verifyNewWithoutWhenNew() throws Exception {14 VerifyNewWithoutWhenNewTest mock = mock(VerifyNewWithoutWhenNewTest.class);15 whenNew(VerifyNewWithoutWhenNewTest.class).withNoArguments().thenReturn(mock);16 .getDeclaredConstructor();17 constructor.setAccessible(true);18 VerifyNewWithoutWhenNewTest test = constructor.newInstance();19 verifyNew(VerifyNewWithoutWhenNewTest.class).withNoArguments();20 assertEquals(mock, test);21 }22}23package samples.powermockito.junit4.whennew;24import org.junit.Test;25import org.junit.runner.RunWith;26import org.powermock.core.classloader.annotations.PrepareForTest;27import org.powermock.modules.junit4.PowerMockRunner;28import org.powermock.reflect.Whitebox;29import java.lang.reflect.Constructor;30import static org.junit.Assert.assertEquals;31import static org.powermock.api.mockito.PowerMockito.*;32@RunWith(PowerMockRunner.class)33@PrepareForTest(VerifyNewWithoutWhenNewTest.class)34public class VerifyNewWithoutWhenNewTest {35 public void verifyNewWithoutWhenNew() throws Exception {36 VerifyNewWithoutWhenNewTest mock = mock(VerifyNewWithoutWhenNewTest.class);37 whenNew(VerifyNewWithoutWhenNewTest.class).withNoArguments().thenReturn
VerifyNewWithoutWhenNewTest
Using AI Code Generation
1@PowerMockIgnore("javax.management.*")2@RunWith(PowerMockRunner.class)3@PrepareForTest(VerifyNewWithoutWhenNewTest.class)4public class VerifyNewWithoutWhenNewTest {5 public void testVerifyNew() throws Exception {6 PowerMockito.verifyNew(VerifyNewWithoutWhenNewTest.class);7 }8}9The cause is that PowerMockito.verifyNew() requires the class to be prepared for testing. This can be done by adding @PrepareForTest annotation to the test class as shown below:10@PowerMockIgnore("javax.management.*")11@RunWith(PowerMockRunner.class)12@PrepareForTest(VerifyNewWithoutWhenNewTest.class)13public class VerifyNewWithoutWhenNewTest {14 public void testVerifyNew() throws Exception {15 PowerMockito.verifyNew(VerifyNewWithoutWhenNewTest.class);16 }17}18@PowerMockIgnore("javax.management.*")19@RunWith(PowerMockRunner.class)20@PrepareForTest(VerifyNewWithoutWhenNewTest.class)21public class VerifyNewWithoutWhenNewTest {22 public void testVerifyNew() throws Exception {23 PowerMockito.verifyNew(VerifyNewWithoutWhenNewTest.class);24 }25}26@PowerMockIgnore("javax.management.*")27@RunWith(PowerMockRunner.class)28@PrepareForTest(VerifyNewWithoutWhenNewTest.class)29public class VerifyNewWithoutWhenNewTest {30 public void testVerifyNew() throws Exception {31 PowerMockito.verifyNew(VerifyNewWithoutWhenNewTest.class);32 }33}
VerifyNewWithoutWhenNewTest
Using AI Code Generation
1import static org.junit.Assert.*;2import static org.powermock.api.mockito.PowerMockito.*;3import java.io.IOException;4import java.io.InputStream;5import java.io.OutputStream;6import org.junit.Test;7import org.junit.runner.RunWith;8import org.powermock.core.classloader.annotations.PrepareForTest;9import org.powermock.modules.junit4.PowerMockRunner;10import samples.powermockito.junit4.whennew.VerifyNewWithoutWhenNewTest;11@RunWith(PowerMockRunner.class)12@PrepareForTest(VerifyNewWithoutWhenNewTest.class)13public class VerifyNewWithoutWhenNewTest {14 public void testVerifyNewWithoutWhenNew() throws Exception {15 VerifyNewWithoutWhenNewTest tested = new VerifyNewWithoutWhenNewTest();16 tested.verifyNewWithoutWhenNew();17 }18 public void verifyNewWithoutWhenNew() throws Exception {19 InputStream mockInputStream = mock(InputStream.class);20 OutputStream mockOutputStream = mock(OutputStream.class);21 when(mockInputStream.read()).thenReturn(1, 2, 3, -1);22 VerifyNewWithoutWhenNewTest tested = new VerifyNewWithoutWhenNewTest();23 tested.copy(mockInputStream, mockOutputStream);24 verifyNew(InputStream.class).withNoArguments();25 verifyNew(OutputStream.class).withArguments(System.out);26 }27 public void copy(InputStream input, OutputStream output) throws IOException {28 int data = input.read();29 while (data != -1) {30 output.write(data);31 data = input.read();32 }33 input.close();34 output.close();35 }36}37package samples.powermockito.junit4.whennew;38import java.io.IOException;39import java.io.InputStream;40import java.io.OutputStream;41public class VerifyNewWithoutWhenNewTest {42 public void copy(InputStream input, OutputStream output) throws IOException {43 int data = input.read();44 while (data != -1) {45 output.write(data);46 data = input.read();47 }48 input.close();49 output.close();50 }51}
VerifyNewWithoutWhenNewTest
Using AI Code Generation
1import org.junit.Test;2import org.junit.runner.RunWith;3import org.powermock.core.classloader.annotations.PrepareForTest;4import org.powermock.modules.junit4.PowerMockRunner;5import org.powermock.reflect.Whitebox;6import static org.junit.Assert.assertEquals;7import static org.powermock.api.mockito.PowerMockito.verifyNew;8@RunWith(PowerMockRunner.class)9@PrepareForTest(VerifyNewWithoutWhenNewTest.class)10public class VerifyNewWithoutWhenNewTest {11 public void testVerifyNewWithoutWhenNew() throws Exception {12 new VerifyNewWithoutWhenNewTest();13 verifyNew(VerifyNewWithoutWhenNewTest.class).withNoArguments();14 }15 public void testVerifyNewWithArgumentsWithoutWhenNew() throws Exception {16 new VerifyNewWithoutWhenNewTest("test");17 verifyNew(VerifyNewWithoutWhenNewTest.class).withArguments("test");18 }19 public void testVerifyNewWithArgumentsAndReturnTypeWithoutWhenNew() throws Exception {20 new VerifyNewWithoutWhenNewTest("test");21 verifyNew(VerifyNewWithoutWhenNewTest.class).withArguments("test").andReturn("test");22 assertEquals("test", Whitebox.invokeMethod(new VerifyNewWithoutWhenNewTest(), "test"));23 }24}25import org.junit.Test;26import org.junit.runner.RunWith;27import org.powermock.core.classloader.annotations.PrepareForTest;28import org.powermock.modules.junit4.PowerMockRunner;29import org.powermock.reflect.Whitebox;30import static org.junit.Assert.assertEquals;31import static org.powermock.api.mockito.PowerMockito.whenNew;32import static org.powermock.api.mockito.PowerMockito.verifyNew;33@RunWith(PowerMockRunner.class)34@PrepareForTest(VerifyNewWithWhenNewTest.class)35public class VerifyNewWithWhenNewTest {36 public void testVerifyNewWithWhenNew() throws Exception {37 whenNew(VerifyNewWithWhenNewTest.class).withNoArguments().thenReturn(new VerifyNewWithWhenNewTest());
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!!