Issue
I have the following service class in my code .
public class MyServiceImpl {
public List<Group> getGroups() throws JAXBException {
List<Group> viewModel = new ArrayList<Group>();
File file = new File(MyServiceImpl.class.getClassLoader().getResource("filename").getPath());
.....
....
}
}
I am trying to write a Junit for getGroups()
method and am stuck with the line where I create a new file. I tried with EasyMock and Mockito but could not get it to work.
EasyMock.expect(MyServiceImpl.class.getClassLoader().getResource("filename").getPath()).andReturn("path");
I am getting the following when the test is run.
java.lang.NullPointerException
at com.mysite.services.content.MyServiceImplTest.testGetGroups(MyServiceImplTest.java:42)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:44)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:180)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:41)
at org.junit.runners.ParentRunner$1.evaluate(ParentRunner.java:173)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
at org.junit.runners.ParentRunner.run(ParentRunner.java:220)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)
edit
Adding the test class.
public class MyServiceImplTest {
private MyServiceImpl service;
@Before
public void setup() {
service = new MyServiceImpl();
}
@Test
public void testGetGroups() throws Exception {
EasyMock.expect(MyServiceImpl.class.getClassLoader().getResource("filename").getPath()).andReturn("path");
service.getGroups();
}
Any help is appreciated. Thanks.
Solution
I was able to solve the above issue by creating a test file filename
and placing it in src/test/resource
folder and when i run the test it passed.
Answered By - Roshan