add instagram tests

also had to modify Instagram login, might cause issues to other branches we'll see...

.github/workflows/run_tests.yaml

@@ -1,4 +1,7 @@
 name: check
+env:
+  INSTAGRAM_USERNAME: ${{ secrets.INSTAGRAM_USERNAME }}
+  INSTAGRAM_SESSION: ${{ secrets.INSTAGRAM_SESSION_JSON }}
 on:
   push:
   pull_request:

Tests/video_system/instagram/test_instagram.py

@@ -0,0 +1,54 @@
+import logging
+import os
+import shutil
+
+import pytest
+
+from Tests.video_system.download_tester import DownloadTester
+from src.instagram import InstagramDownloader
+
+DOWNLOAD_PATH = os.path.join("Tests", "video_system", "instagram", "downloads")
+
+# no params
+TEST_REEL_1 = "https://www.instagram.com/reel/C2-vIqjsosW/"
+#extra params
+TEST_REEL_2 = "https://www.instagram.com/reel/C2-vIqjsosW/?igsh=eGFma20zbWY0bDJs"
+#multiple videos
+TEST_REEL_3 = "https://www.instagram.com/p/C9tjADzPwDz/?igsh=MnF5dzhjajhxZ3Rs"
+
+class TestInstagramDownloader(DownloadTester):
+    @pytest.fixture(autouse=True)
+    def remove_all_cache(self):
+        logging.basicConfig(level=logging.DEBUG)
+        os.makedirs(DOWNLOAD_PATH, exist_ok=True)
+        shutil.rmtree(DOWNLOAD_PATH, ignore_errors=True)
+        yield
+        # delete the downloads folder after the test.
+        assert os.path.exists(DOWNLOAD_PATH)
+        shutil.rmtree(DOWNLOAD_PATH, ignore_errors=True)
+
+    def test_instagram_single_video_download(self):
+        videos = InstagramDownloader.download_video_from_link(
+            TEST_REEL_1, path=DOWNLOAD_PATH
+        )
+        should_be_path = os.path.join("Tests", "video_system", "instagram", "should_be_0.mp4")
+
+        assert videos, "couldn't download, probably due to graphql error (login wasn't successful)"
+        self.download_single_video_test(videos, should_be_path)
+
+    def test_instagram_download_extra_params(self):
+        videos = InstagramDownloader.download_video_from_link(
+            TEST_REEL_2, path=DOWNLOAD_PATH
+        )
+        should_be_path = os.path.join("Tests", "video_system", "instagram", "should_be_0.mp4")
+
+        self.download_single_video_test(videos, should_be_path)
+
+    def test_instagram_download_multiple_videos(self):
+        videos = InstagramDownloader.download_video_from_link(
+            TEST_REEL_3, path=DOWNLOAD_PATH
+        )
+
+        expected_files = [os.path.join("Tests", "video_system", "instagram", should_be) for should_be in [f"should_be_{i}.mp4" for i in range(1, 7)]]
+
+        self.download_multiple_video_test(videos, expected_files)

src/instagram.py

@@ -50,6 +50,15 @@ def _login() -> bool:
         downloader.load_session(username, session_data)
         return True
 
+    if (session_data:=os.getenv("INSTAGRAM_SESSION")) is not None:
+        # this function will only be used in github actions
+        # so we can assume that the session data is in the correct format
+        # and if not, it should crash anyways
+        import json # pylint: disable=import-outside-toplevel # this is only used in this branch
+        downloader.load_session(username, json.loads(session_data))
+        return True
+
+
     password = os.getenv("INSTAGRAM_PASSWORD")
     if password is None:
         logging.error(