Powermock (with Easymock) is not the last call to the layout

Question

I am trying to just run a simple test case. I have the following method.

public static void run(String[] args) throws Throwable { CommandLineArguments opts = CommandLineOptionProcessor.getOpts(args); } 

I will continue this method / test case when I go. However, I just wanted to make sure that the first test case worked first. So I wrote the following test.

 @Test public void testRun() { String[] args = {"--arg1", "value", "--arg2", "value2"}; mockStatic(CommandLineOptionProcessor.class); expect(CommandLineOptionProcessor.getOpts(args)); EasyMock.replay(CommandLineOptionProcessor.class); } 

After that, I get the following error:

 java.lang.IllegalStateException: no last call on a mock available 

I read some other posts on StackOverflow, but their solution seemed to use PowerMock with Mockito. I use Powermock and Easymock, so this should not be a problem.

I followed Rene’s advice and added the following to the beginning of my class.

 @PrepareForTest(CommandLineOptionProcessor.class) @RunWith(PowerMockRunner.class) public class DataAssemblerTest { 

I fixed the previous error. But now I have this error.

 java.lang.IllegalArgumentException: Not a mock: java.lang.Class at org.easymock.internal.ClassExtensionHelper.getControl(ClassExtensionHelper.java:61) at org.easymock.EasyMock.getControl(EasyMock.java:2172) at org.easymock.EasyMock.replay(EasyMock.java:2074) . . . 

Any ideas on what might be causing this will be great.

Answer 1

Did you comment on the test class using @RunWith(PowerMockRunner.class) and @PrepareForTest(CommandLineOptionProcessor.class) ?

  @RunWith(PowerMockRunner.class) @PrepareForTest(CommandLineOptionProcessor.class) public class TestClass { @Test public void testRun(){ 

You need @PrepareForTest(CommandLineOptionProcessor.class) at the test class level. See the Powermock document :

Use the @PrepareForTest annotation (ClassThatContainsStaticMethod.class) at the class level of the test case.

Also make sure the required libraries are in the test path.

In your case, the javassist library is missing . Put it on the class path. Perhaps some other libraries are also missing ... we'll see.

If you get

 java.lang.IllegalArgumentException: Not a mock: java.lang.Class 

then you use EasyMock.replay() , but you must use PowerMock.replay()

Answer 2

  EasyMock.expectLastCall() 

or

  EasyMock.expectLastCall().anyTimes() 

or

  EasyMock.expectLastCall().andAnswer(..) 

not in your code, there should be after the method that you want to test this in case your testing method is void.

otherwise you can use:

 expect(CommandLineOptionProcessor.getOpts(args)).andReturn(object); 

also please add this to your test class:

  @ObjectFactory public IObjectFactory getObjectFactory() { return new org.powermock.modules.testng.PowerMockObjectFactory( ); }