Need help for Mocking Static methods using JUnit5 with PowerMockito framework.
Powermock junit5 and mockito2.x not working RunnerTestSuiteChunker not found
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.powermock.api.mockito.PowerMockito;
import org.powermock.core.classloader.annotations.PowerMockIgnore;
import org.powermock.core.classloader.annotations.PrepareForTest;
import org.powermock.modules.junit4.PowerMockRunner;
import static org.mockito.Mockito.*;
@PrepareForTest(EnvironmentUtils.class)
@RunWith(PowerMockRunner.class)
public class RuleControllerTest {
@Before
public void setup() {
PowerMockito.mockStatic(EnvironmentUtils.class);
}
@Test
public void test_rule_create_rule() throws IOException {
when(EnvironmentUtils.isCF()).thenReturn(true);
}
}
and pom.xml
<!-- -->
<dependency>
<groupId>org.mockito</groupId>
<artifactId>mockito-core</artifactId>
<version>2.23.4</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-api</artifactId>
<version>5.4.2</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
<version>5.4.2</version>
</dependency>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-engine</artifactId>
<version>5.4.2</version>
<scope>test</scope>
</dependency>
<!-- -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.powermock</groupId>
<artifactId>powermock-module-junit4</artifactId>
<version>2.0.2</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.powermock</groupId>
<artifactId>powermock-api-mockito2</artifactId>
<version>2.0.2</version>
<scope>test</scope>
</dependency>
I followed Junit5 sample from here, 1) 2) Junit5 mock a static method
But facing an issue as, I know there is an existing issue for Junit5 with powermock but any one knows any other way to Mock static methods using JUnit5 using powermock.
3 Answers
With mockito v 3.4.0 we can simply use mockStatic() method without powermock library :
try (MockedStatic mocked = mockStatic(Foo.class)) {
mocked.when(Foo::method).thenReturn("bar");
assertEquals("bar", Foo.method());
mocked.verify(Foo::method);
}
assertEquals("foo", Foo.method());
Latest documentation and example :
You're using @Before which is junit4 annotation.. Junit5 have @BeforeEach / @BeforeAll(whichever suits your requirement). Also, your import for @Test are from junit4 but not from junit5(That should be org.junit.jupiter.api.Test;)
As your link suggests, still you can't do power mock stuff with junit-5 directly, simply because there's no PowerMockRunner (Extension) still available for junit-5.
However, In your above code possibly what has gone wrong is this line.
when(EnvironmentUtils.isCF()).thenReturn(true);
Here, note that you are using when of mockito (by import static org.mockito.Mockito.*;)
Instead, you have to use the one of PowerMockito. So
Remove this line import static org.mockito.Mockito.*;
Instead, add this. import static org.powermock.api.mockito.PowerMockito.*;
