return "lang";
            }
        };
        ComponentUtil.setFessConfig(mockConfig);

        // Setup mock request manager
        RequestManager mockRequestManager = createMockRequestManager("en_US");

        // Execute
        OptionalThing<Locale> result = provider.findBusinessLocale(null, mockRequestManager);

        // Verify
        assertTrue(result.isPresent());

    private RequestManager requestManager;

    @Override
    public void setUp() throws Exception {
        super.setUp();
        provider = new FessUserTimeZoneProcessProvider();
        requestManager = createMockRequestManager();
    }

    @Override
    public void tearDown() throws Exception {
        provider = null;
        requestManager = null;
        super.tearDown();
    }