assertEquals(".png", generator.getExtensionFromMimeType("image/png"));
    }

    // Tests for BMP MIME types (multiple variants)
    @Test
    public void test_getExtensionFromMimeType_bmp() {
        assertEquals(".bmp", generator.getExtensionFromMimeType("image/bmp"));
    }

    @Test
    public void test_getExtensionFromMimeType_xWindowsBmp() {