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

java unit-testing junit easymock powermock

16,856

Solution 1

Your code is missing the annotation

@PrepareForTest(IdGenerator.class)

Solution 2

In my case I was missing the following method in my test class

   @ObjectFactory
   /**
    * Configure TestNG to use the PowerMock object factory.
    */
   public IObjectFactory getObjectFactory() {
      return new org.powermock.modules.testng.PowerMockObjectFactory();
   }

Once I added it, I got rid of the "no last call on a mock available" error.

Solution 3

You need to put the replay before the actual call to the method.

EDIT: I think part of the problem may be caused because of your imports. Try not to import static powermock and static easymock (I've found that I often confuse myself and forget which one I need to call replay on).

Try running the following code. If it doesn't run correctly, then it may be because of a problem with the particular version of PowerMock/EasyMock/Junit that you have.

TestClass:

import org.junit.Test;
import org.junit.runner.RunWith;
import org.powermock.api.easymock.PowerMock;
import org.powermock.core.classloader.annotations.PrepareForTest;
import org.powermock.modules.junit4.PowerMockRunner;

import static org.easymock.EasyMock.*;

import static org.junit.Assert.*;
@RunWith(PowerMockRunner.class)
@PrepareForTest(IdGenerator.class)
public class TestClass {

@Test
public void testRegistrarService()
{
    ServiceRegistrator serTestObj = new ServiceRegistrator();

    PowerMock.mockStatic(IdGenerator.class);
    expect(IdGenerator.generateNewId()).andReturn(42L);
    PowerMock.replay(IdGenerator.class);
    long actualId=serTestObj.registerService();
    PowerMock.verify(IdGenerator.class);
    assertEquals(42L,actualId);
 }
}

IdGenerator:

public class IdGenerator {
     public static long generateNewId()
      {
        return System.currentTimeMillis();
      }
}

ServiceRegistrator:

public class ServiceRegistrator {
    public long registerService()
    {
        long id = IdGenerator.generateNewId();
        return id;
     }
}

16,856

Author by

SachG

Updated on July 15, 2022

Comments

SachG almost 2 years

To mock a static method powermock giving an exception while expect().

@Test
public void testRegistrarService()
{
   mockStatic(IdGenerator.class);
   expect(IdGenerator.generateNewId()).andReturn(42L);
   long actualId=serTestObj.registerService();
   replay(IdGenerator.class);
   verify(IdGenerator.class);
   assertEquals(42L,actualId);
 }


public class ServiceRegistrator
{
public long registerService()
{
    long id = IdGenerator.generateNewId();
    return id;
 }
}

public class IdGenerator
{
  public static long generateNewId()
  {
    return System.currentTimeMillis();
  }
}

Exception is:

java.lang.IllegalStateException: no last call on a mock available
at org.easymock.EasyMock.getControlForLastCall(EasyMock.java:521)
at org.easymock.EasyMock.expect(EasyMock.java:499)
at  home.powermock.testServiceRegistrator.testRegistrarService(testServiceRegistrator.java:51)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at com.intellij.rt.execution.junit2.JUnitStarter.main(JUnitStarter.java:31)

how to mock staic method,while m using powerMock i'm using intelliJ idea,how to resolve that exception.

SachG almost 11 years

@RunWith(PowerMockRunner.class) @PrepareForTest({testServiceRegistrator.class,IdGenerator.cl‌ass} i already added both annotation before class in which test method is present.
JoseK almost 11 years

remove the testServiceRegistrator.class from the list
SachG almost 11 years

removed...still the same exception.. :( now i have like @PrepareForTest(IdGenerator.class).. i think that the root cause is in "expect()" method.Bcz exception is coming at that point.may be some thing is cooking here. but not able to resolve it?
SachG almost 11 years

HardcoreBro i tried your approach.but still the same exception..still not resolved... :(
HardcoreBro almost 11 years

See the revised post. I added source code. I think your problem may be with the way you imported your code... Try changing your imports to match the above code and let me know how it goes
SachG almost 11 years

still its not working same exception is coming....is this code working on your environment????? If so it seems to be a jar problem...then please let me know once which jar are you using for EasyMock/PowerMock/JUnit....
HardcoreBro almost 11 years

The code works in my environment. I'm going to list everything that I have imported, but there might be something that I'm using that isn't absolutely necessary: powermock-api-easymock-1.4.10.jar hamcrest-core-1.3.jar junit--4.11.jar platform.jar powermock-module-junit4-1.4.10.jar powermock-module-junit4-common-1.4.10.jar powermock-core-1.4.10.jar powermock-api-support-1.4.10.jar easymock-3.0.jar javassist-3.15.0-GA.jar powermock.reflect-1.4.10.jar objenesis-1.2.jar cglib-nodep-2.2.jar
SachG almost 11 years

HardCoreBro..i'm using almost same jar.but don't know why still facing same exception....Dear Can you please mail me this all jar to my gmail id.... "[email protected]" ...please mail all the impoted jars..thanks
Sandeep over 8 years

facing same issue even after putting @PrepareForTest
Chris over 7 years

In my case, it got rid of the original error message and replaced it with "Inconsistent stackmap frames at branch target 49" ... I'd love to hear a bit more about the reasoning behind adding the IObjectFactory.
Chris over 7 years

I'm using testng, not junit and added the RunWith. I took that out and adding the ObjectFactory seems to have me on my way. I got some insight here: github.com/jayway/powermock/wiki/TestNG_usage