referralData.replaceCache();
            assertEquals(referralData, cacheMap.get("test-key"));
        }

        @Test
        @DisplayName("Should replace cache entry with key")
        void testReplaceCache() {
            String key = "cache-key";
            referralData.setKey(key);
            referralData.setCacheMap(cacheMap);

            referralData.replaceCache();

            assertDoesNotThrow(() -> concreteImplementation.setCacheMap(cacheMap));
        }

        @Test
        @DisplayName("Should replace cache")
        void testReplaceCache() {
            // Test with mock
            doNothing().when(mockReferralData).replaceCache();
            mockReferralData.replaceCache();
            verify(mockReferralData, times(1)).replaceCache();