add git ci variable, apply to failing test

Author: Dan-Flores

test/test_encoders.py

@@ -17,6 +17,7 @@
     assert_tensor_close_on_at_least,
     get_ffmpeg_major_version,
     get_ffmpeg_minor_version,
+    IN_GIT_CI,
     IS_WINDOWS,
     NASA_AUDIO_MP3,
     needs_ffmpeg_cli,
@@ -1291,3 +1292,8 @@ def test_extra_options_utilized(self, tmp_path, profile, colorspace, color_range
         assert metadata["profile"].lower() == expected_profile
         assert metadata["color_space"] == colorspace
         assert metadata["color_range"] == color_range
+
+
+@pytest.mark.skipif(IN_GIT_CI, reason="Skipping test in GitHub Actions CI")
+def test_always_fails():
+    assert False

test/utils.py

@@ -17,6 +17,7 @@
 from torchcodec.decoders._video_decoder import _read_custom_frame_mappings
 
 IS_WINDOWS = sys.platform in ("win32", "cygwin")
+IN_GIT_CI = os.getenv("GITHUB_ACTIONS")
 
 
 # Decorator for skipping CUDA tests when CUDA isn't available. The tests are