/*
* Copyright 2011 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package powermock.modules.test.mockito.junit4.agent;
import org.junit.Rule;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.powermock.core.classloader.annotations.PrepareForTest;
import org.powermock.modules.junit4.rule.PowerMockRule;
import org.powermock.reflect.exceptions.MethodNotFoundException;
import org.powermock.reflect.exceptions.TooManyMethodsFoundException;
import samples.suppressmethod.SuppressMethod;
import static junit.framework.Assert.fail;
import static org.junit.Assert.assertEquals;
import static org.powermock.api.support.membermodification.MemberMatcher.method;
import static org.powermock.api.support.membermodification.MemberModifier.stub;
@PrepareForTest(SuppressMethod.class)
public class StubMethodTest {
@Rule
public PowerMockRule powerMockRule = new PowerMockRule();
@Test
public void whenStubbingInstanceMethodTheMethodReturnsTheStubbedValue() throws Exception {
String expectedValue = "Hello";
stub(method(SuppressMethod.class, "getObject")).toReturn(expectedValue);
SuppressMethod tested = new SuppressMethod();
assertEquals(expectedValue, tested.getObject());
assertEquals(expectedValue, tested.getObject());
}
@Test
public void whenStubbingStaticMethodTheMethodReturnsTheStubbedValue() throws Exception {
String expectedValue = "Hello";
stub(method(SuppressMethod.class, "getObjectStatic")).toReturn(expectedValue);
assertEquals(expectedValue, SuppressMethod.getObjectStatic());
assertEquals(expectedValue, SuppressMethod.getObjectStatic());
}
@Test
public void whenStubbingInstanceMethodWithPrimiteValueTheMethodReturnsTheStubbedValue() throws Exception {
float expectedValue = 4;
stub(method(SuppressMethod.class, "getFloat")).toReturn(expectedValue);
SuppressMethod tested = new SuppressMethod();
assertEquals(expectedValue, tested.getFloat(), 0.0f);
assertEquals(expectedValue, tested.getFloat(), 0.0f);
}
@Test(expected = TooManyMethodsFoundException.class)
public void whenSeveralMethodsFoundThenTooManyMethodsFoundExceptionIsThrown() throws Exception {
stub(method(SuppressMethod.class, "sameName"));
}
@Test(expected = MethodNotFoundException.class)
public void whenNoMethodsFoundThenMethodNotFoundExceptionIsThrown() throws Exception {
stub(method(SuppressMethod.class, "notFound"));
}
@Test
public void whenStubbingInstanceMethodByPassingTheMethodTheMethodReturnsTheStubbedValue() throws Exception {
String expected = "Hello";
stub(method(SuppressMethod.class, "getObject")).toReturn(expected);
SuppressMethod tested = new SuppressMethod();
assertEquals(expected, tested.getObject());
assertEquals(expected, tested.getObject());
}
@Test
public void whenStubbingStaticMethodByPassingTheMethodTheMethodReturnsTheStubbedValue() throws Exception {
String expected = "Hello";
stub(method(SuppressMethod.class, "getObjectStatic")).toReturn(expected);
assertEquals(expected, SuppressMethod.getObjectStatic());
assertEquals(expected, SuppressMethod.getObjectStatic());
}
@Test(expected = ClassCastException.class)
public void whenStubbingInstanceMethodWithWrongReturnTypeThenClasscastExceptionIsThrown() throws Exception {
String illegalReturnType = "Hello";
stub(method(SuppressMethod.class, "getFloat")).toReturn(illegalReturnType);
SuppressMethod tested = new SuppressMethod();
tested.getFloat();
}
@Test
public void whenStubbingInstanceMethodToThrowExceptionTheMethodThrowsTheStubbedException() throws Exception {
Exception expected = new Exception("message");
stub(method(SuppressMethod.class, "getObject")).toThrow(expected);
SuppressMethod tested = new SuppressMethod();
try {
tested.getObject();
fail();
} catch (Exception e) {
assertEquals("message", e.getMessage());
}
}
@Test
public void whenStubbingStaticMethodToThrowExceptionTheMethodThrowsTheStubbedException() throws Exception {
Exception expected = new Exception("message");
stub(method(SuppressMethod.class, "getObjectStatic")).toThrow(expected);
try {
SuppressMethod.getObjectStatic();
fail();
} catch (Exception e) {
assertEquals("message", e.getMessage());
}
}
}