I have class with a forwarding method foo:
void foo( Concrete c, String s ) { c.bar( s ); }
I wish to test that foo in fact forwards. Unfortunately for me, Concrete
is a class in a third-party library, and is a Concrete type, not an
interface. Thus I must use ClassImposterizer in Jmock to mock Concrete,
so in my testcase I do this:
@Test
public final void testFoo() {
Mockery context = new JUnit4Mockery() {{
setImposteriser(ClassImposteriser.INSTANCE);
}};
final Concrete c = context.mock(Concrete.class);
final String s = "xxx" ;
// expectations
context.checking(new Expectations() {{
oneOf (c).bar(s); // exception gets thrown from here
}});
new ClassUnderTest.foo( c, s );
context.assertIsSatisfied();
}
Unfortunately, Concrete.bar in turn calls a method that throws. That
method is final, so I can't override it. Further, even if I comment out
the line new ClassUnderTest.foo( c, s );, the exception is thrown when
JMock sets up exceptions, not when foo is called.
So how can I test that method ClassUnderTest.foo does forward to
Concrete.bar?
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