You could also Stub Consecutive Calls (#10 in 2.8.9 api). In this case, you would use multiple thenReturn calls or one thenReturn call with multiple parameters (varargs).
import static org.junit.Assert.assertEquals;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;
import org.junit.Before;
import org.junit.Test;
public class TestClass {
private Foo mockFoo;
@Before
public void setup() {
setupFoo();
}
@Test
public void testFoo() {
TestObject testObj = new TestObject(mockFoo);
assertEquals(0, testObj.bar());
assertEquals(1, testObj.bar());
assertEquals(-1, testObj.bar());
assertEquals(-1, testObj.bar());
}
private void setupFoo() {
mockFoo = mock(Foo.class);
when(mockFoo.someMethod())
.thenReturn(0)
.thenReturn(1)
.thenReturn(-1); //any subsequent call will return -1
// Or a bit shorter with varargs:
when(mockFoo.someMethod())
.thenReturn(0, 1, -1); //any subsequent call will return -1
}
}