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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);

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