GivenWhenThen

        mockery.when(() -> servlet.process(
                ImmutableMap.of(
                        "code", new String[]{ codeValue},
                        "state", new String[]{ state }),
                "http://rescyoume/oauth",
                response)).
        then(expect -> {
            expect.oneOf(stravaAuthenticator).fetchDetails(codeValue, oAuthAccount, clientState, "http://rescyoume/oauth");
                expect.will(returnValue(oAuthDetails));
            expect.oneOf(db).save(oAuthDetails);
        });