How to use Slf4jMockPolicy class of org.powermock.api.mockito.mockpolicies package

Best Powermock code snippet using org.powermock.api.mockito.mockpolicies.Slf4jMockPolicy

Source:Slf4jUserTest.java

1package demo.org.powermock.examples;2import org.junit.Test;3import org.junit.runner.RunWith;4import org.powermock.api.mockito.mockpolicies.Slf4jMockPolicy;5import org.powermock.core.classloader.annotations.MockPolicy;6import org.powermock.modules.junit4.PowerMockRunner;7import org.powermock.reflect.Whitebox;8import org.slf4j.Logger;9import static org.junit.Assert.assertTrue;10/**11 * Unit tests that assert that the {@link Slf4jMockPolicy} works for Mockito.12 */13@RunWith(PowerMockRunner.class)14@MockPolicy(Slf4jMockPolicy.class)15public class Slf4jUserTest {16    @Test17    public void assertSlf4jMockPolicyWorks() throws Exception {18        final Slf4jUser tested = new Slf4jUser();19        tested.getMessage();20        final Class<? extends Logger> aClass = Whitebox.getInternalState(Slf4jUser.class, Logger.class).getClass();21        assertTrue(aClass.getName().contains("EnhancerByMockitoWithCGLIB"));22    }23}...

Slf4jMockPolicy

Using AI Code Generation

1import org.powermock.api.mockito.mockpolicies.Slf4jMockPolicy;2import org.powermock.api.mockito.PowerMockito;3import org.powermock.core.classloader.annotations.PrepareForTest;4import org.powermock.modules.junit4.PowerMockRunner;5import org.powermock.modules.junit4.PowerMockRunnerDelegate;6import org.slf4j.LoggerFactory;7import org.slf4j.Logger;8import org.junit.runner.RunWith;9import org.junit.Test;10import org.junit.Before;11import org.junit.Assert;12import org.junit.runner.RunWith;13import org.junit.runners.JUnit4;14@RunWith(PowerMockRunner.class)15@PowerMockRunnerDelegate(JUnit4.class)16@PrepareForTest({LoggerFactory.class})17public class Slf4jMockPolicyTest {18    public void setUp() {19        PowerMockito.mockStatic(LoggerFactory.class);20    }21    public void testLoggerCreation() {22        Logger logger = LoggerFactory.getLogger("test");23        Assert.assertNotNull(logger);24    }25}26	at org.powermock.core.classloader.MockClassLoader.loadModifiedClass(MockClassLoader.java:246)27	at org.powermock.core.classloader.DeferSupportingClassLoader.loadClass(DeferSupportingClassLoader.java:99)28	at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.createTest(PowerMockJUnit44RunnerDelegateImpl.java:330)29	at org.powermock.modules.junit4.internal.impl.PowerMockJUnit47RunnerDelegateImpl.createTest(PowerMockJUnit47RunnerDelegateImpl.java:60)30	at org.powermock.modules.junit4.internal.impl.PowerMockJUnit47RunnerDelegateImpl$PowerMockJUnit47MethodRunner.executeTest(PowerMockJUnit47RunnerDelegateImpl.java:73)31	at org.powermock.modules.junit4.internal.impl.PowerMockJUnit47RunnerDelegateImpl$PowerMockJUnit47MethodRunner.runMethods(PowerMockJUnit47RunnerDelegateImpl.java:66)32	at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.runBeforesThenTestThenAfters(PowerMockJUnit44RunnerDelegateImpl.java:311)33	at org.junit.internal.runners.MethodRoadie.runBeforesThenTestThenAfters(MethodRoadie

Slf4jMockPolicy

Using AI Code Generation

1[INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ mockito-mock-policies-logging ---2[INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) @ mockito-mock-policies-logging ---3[INFO] --- maven-surefire-plugin:2.22.0:test (default-test) @ mockito-mock-policies-logging ---4[ERROR] testSlf4jMockPolicy(org.powermock.modules.mockito.mockpolicies.Slf4jMockPolicyTest)  Time elapsed: 0.01 s  <<< ERROR!5	at org.powermock.modules.mockito.mockpolicies.Slf4jMockPolicyTest.testSlf4jMockPolicy(Slf4jMockPolicyTest.java:38)6	at org.powermock.modules.mockito.mockpolicies.Slf4jMockPolicyTest.testSlf4jMockPolicy(Slf4jMockPolicyTest.java:38)

Slf4jMockPolicy

Using AI Code Generation

1@PrepareForTest(value = {LogFactory.class}, mockPolicy = Slf4jMockPolicy.class)2public class MyTest {3    private static final Logger LOGGER = LogFactory.getLogger(MyTest.class);4    public void testLog() {5        LOGGER.info("Hello World!");6    }7}8The default mock policy, Slf4jMockPolicy , is a subclass of the MockitoPolicy class of the org.powermock.api.mockito.mockpolicies package. The default implementation of the org.powermock.api.mockito.mockpolicies.MockitoPolicy#applyPolicy() method is:9public void applyPolicy(final Method method, final Object mock, final Object[] args) {10    if (method.getName().equals("getLogger")) {11        PowerMockito.mockStatic(LogFactory.class);12        when(LogFactory.getLogger(any(Class.class))).thenReturn(mock(Logger.class));13    }14}15@PrepareForTest(value = {LogFactory.class}, mockPolicy = MyMockPolicy.class)16public class MyTest {17    private static final Logger LOGGER = LogFactory.getLogger(MyTest.class);18    public void testLog() {19        LOGGER.info("Hello World!");20    }21}22public class MyMockPolicy implements MockitoPolicy {23    public void applyPolicy(final Method method, final Object mock, final Object[] args) {24        if (method.getName().equals("getLogger")) {25            PowerMockito.mockStatic(LogFactory.class);26            when(LogFactory.getLogger(any(Class.class))).thenReturn(mock(Logger.class));27        }28    }29}30The following example shows how to use the PowerMockito#mockStatic(Class) method to mock static methods:31@PrepareForTest(value = {LogFactory.class})32public class MyTest {33    private static final Logger LOGGER = LogFactory.getLogger(MyTest.class);

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.