Mock a single static method using PowerMock and TestNG
java, mocking, powermock, testng
Solution
Why not try something like :
PowerMockito.mockStatic(StaticClass.class);
Mockito.when(StaticClass.a()).thenReturn("x");
Mockito.when(StaticClass.ab()).thenCallRealMethod();
Problem
``` class StaticClass { public static String a(){ return "a"; } public static String ab(){ return a()+"b"; } } ``` I want to mock `StaticClass::a` so that it returns `"x"` and the call to `StaticClass.ab()` results in `"xb"`... I find it very hard in PowerMock and TestNG... the exact code I am testing righ now: ``` class StaticClass { public static String A() { System.out.println("Called A"); throw new IllegalStateException("SHOULD BE MOCKED AWAY!"); } public static String B() { System.out.println("Called B"); return A() + "B"; } } @PrepareForTest({StaticClass.class}) public class StaticClassTest extends PowerMockTestCase { @Test public void testAB() throws Exception { PowerMockito.spy(StaticClass.class); BDDMockito.given(StaticClass.A()).willReturn("A"); assertEquals("AB", StaticClass.B()); // IllegalStateEx is still thrown :-/ } } ``` I have Maven dependencies on: ``` <artifactId>powermock-module-testng</artifactId> and <artifactId>powermock-api-mockito</artifactId> ```