public void test_getExtensionFromMimeType_svg() {
        assertEquals(".svg", generator.getExtensionFromMimeType("image/svg+xml"));
    }

    // Tests for JPEG MIME type
    @Test
    public void test_getExtensionFromMimeType_jpeg() {
        assertEquals(".jpg", generator.getExtensionFromMimeType("image/jpeg"));
    }

    // Tests for PNG MIME type
    @Test
    public void test_getExtensionFromMimeType_png() {