mockBufferCache.releaseBuffer(buffer);
        }, "releaseBuffer should handle valid buffers");
    }

    @Test
    @DisplayName("getBuffer should return buffers for use")
    void testGetBufferBasicUsage() {
        // When
        byte[] buffer1 = testCache.getBuffer();
        byte[] buffer2 = testCache.getBuffer();

        // Then
        assertNotNull(buffer1, "First buffer should not be null");