| er == 'imagemagick' and html == 'html5' |
| # ImageMagick delegates to ffmpeg for this format. |
| and not animation.FFMpegWriter.isAvailable()): |
| pytest.skip('Requires FFMpeg') |
| # create here rather than in the fixture otherwise we get __del__ warnings |
| # about producing no output |
| anim = animation.FuncAnimation(**anim) |
| with plt.rc_context({'animation.writer': writer, |
| 'animation.html': html}): |
| html = anim._repr_html_() |
| if want is None: |
| assert html is None |
| with pytest.warns(UserWarning): |
| del anim # Animation was never run, so will warn on cleanup. |
| np.testing.break_cycles() |
| else: |
| assert want in html |
|
|
|
|
| @pytest.mark.parametrize( |
| 'anim', |
| [{'save_count': 10, 'frames': iter(range(5))}], |
| indirect=['anim'] |
| ) |
| def test_no_length_frames(anim): |
| anim.save('unused.null', writer=NullMovieWriter()) |
|
|
|
|
| def test_movie_writer_registry(): |
| assert len(animation.writers._registered) > 0 |
| mpl.rcParams['animation.ffmpeg_path'] = "not_available_ever_xxxx" |
| assert not animation.writers.is_available("ffmpeg") |
| # something guaranteed to be available in path and exits immediately |
| bin = "true" if sys.platform != 'win32' else "where" |
| mpl.rcParams['animation.ffmpeg_path'] = bin |
| assert animation.writers.is_available("ffmpeg") |
|
|
|
|
| @pytest.mark.parametrize( |
| "method_name", |
| [pytest.param("to_html5_video", marks=pytest.mark.skipif( |
| not animation.writers.is_available(mpl.rcParams["animation.writer"]), |
| reason="animation writer not installed")), |
| "to_jshtml"]) |
| @pytest.mark.parametrize('anim', [dict(frames=1)], indirect=['anim']) |
| def test_embed_limit(method_name, caplog, tmpdir, anim): |
| caplog.set_level("WARNING") |
| with tmpdir.as_cwd(): |
| with mpl.rc_context({"animation.embed_limit": 1e-6}): # ~1 byte. |
| getattr(anim, method_name)() |
| assert len(caplog.rec |
