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import pickle
import unittest

from tests.test_glb_cache import app, gr


class PreviewRequestHeaders(unittest.TestCase):
    def test_mobile_resolution_survives_request_serialization(self):
        for header in ("user-agent", "User-Agent"):
            request = gr.Request(headers={header: "Mozilla/5.0 (iPhone) Mobile"})
            restored = pickle.loads(pickle.dumps(request))
            self.assertEqual(app.get_preview_settings(restored), (True, 256, 15, 3))

    def test_desktop_and_missing_requests_keep_desktop_resolution(self):
        request = gr.Request(headers={"user-agent": "Mozilla/5.0 (Macintosh)"})
        self.assertEqual(app.get_preview_settings(request), (False, 384, 15, 3))
        self.assertEqual(app.get_preview_settings(None), (False, 384, 15, 3))