public void test_getExtensionFromMimeType_photoshopAppX() {
        assertEquals(".psd", generator.getExtensionFromMimeType("application/x-photoshop"));
    }

    @Test
    public void test_getExtensionFromMimeType_photoshopApp() {
        assertEquals(".psd", generator.getExtensionFromMimeType("application/photoshop"));
    }

    // Tests for null and empty input
    @Test