Files
2025-11-30 08:48:52 +08:00

260 lines
7.7 KiB
Python

#!/usr/bin/env python3
"""Tests for media_convert.py"""
import sys
from pathlib import Path
from unittest.mock import MagicMock, patch
import pytest
# Add parent directory to path
sys.path.insert(0, str(Path(__file__).parent.parent))
from media_convert import (
build_audio_command,
build_image_command,
build_video_command,
check_dependencies,
convert_file,
detect_media_type,
)
class TestMediaTypeDetection:
"""Test media type detection."""
def test_detect_video_formats(self):
"""Test video format detection."""
assert detect_media_type(Path("test.mp4")) == "video"
assert detect_media_type(Path("test.mkv")) == "video"
assert detect_media_type(Path("test.avi")) == "video"
assert detect_media_type(Path("test.mov")) == "video"
def test_detect_audio_formats(self):
"""Test audio format detection."""
assert detect_media_type(Path("test.mp3")) == "audio"
assert detect_media_type(Path("test.aac")) == "audio"
assert detect_media_type(Path("test.flac")) == "audio"
assert detect_media_type(Path("test.wav")) == "audio"
def test_detect_image_formats(self):
"""Test image format detection."""
assert detect_media_type(Path("test.jpg")) == "image"
assert detect_media_type(Path("test.png")) == "image"
assert detect_media_type(Path("test.gif")) == "image"
assert detect_media_type(Path("test.webp")) == "image"
def test_detect_unknown_format(self):
"""Test unknown format detection."""
assert detect_media_type(Path("test.txt")) == "unknown"
assert detect_media_type(Path("test.doc")) == "unknown"
def test_case_insensitive(self):
"""Test case-insensitive detection."""
assert detect_media_type(Path("TEST.MP4")) == "video"
assert detect_media_type(Path("TEST.JPG")) == "image"
class TestCommandBuilding:
"""Test command building functions."""
def test_build_video_command_web_preset(self):
"""Test video command with web preset."""
cmd = build_video_command(
Path("input.mp4"),
Path("output.mp4"),
preset="web"
)
assert "ffmpeg" in cmd
assert "-i" in cmd
assert str(Path("input.mp4")) in cmd
assert "-c:v" in cmd
assert "libx264" in cmd
assert "-crf" in cmd
assert "23" in cmd
assert "-preset" in cmd
assert "medium" in cmd
assert str(Path("output.mp4")) in cmd
def test_build_video_command_archive_preset(self):
"""Test video command with archive preset."""
cmd = build_video_command(
Path("input.mp4"),
Path("output.mp4"),
preset="archive"
)
assert "18" in cmd # CRF for archive
assert "slow" in cmd # Preset for archive
def test_build_audio_command_mp3(self):
"""Test audio command for MP3 output."""
cmd = build_audio_command(
Path("input.wav"),
Path("output.mp3"),
preset="web"
)
assert "ffmpeg" in cmd
assert "-c:a" in cmd
assert "libmp3lame" in cmd
assert "-b:a" in cmd
def test_build_audio_command_flac(self):
"""Test audio command for FLAC (lossless)."""
cmd = build_audio_command(
Path("input.wav"),
Path("output.flac"),
preset="web"
)
assert "flac" in cmd
assert "-b:a" not in cmd # No bitrate for lossless
def test_build_image_command(self):
"""Test image command building."""
cmd = build_image_command(
Path("input.png"),
Path("output.jpg"),
preset="web"
)
assert "magick" in cmd
assert str(Path("input.png")) in cmd
assert "-quality" in cmd
assert "85" in cmd
assert "-strip" in cmd
assert str(Path("output.jpg")) in cmd
class TestDependencyCheck:
"""Test dependency checking."""
@patch("subprocess.run")
def test_check_dependencies_both_available(self, mock_run):
"""Test when both tools are available."""
mock_run.return_value = MagicMock(returncode=0)
ffmpeg_ok, magick_ok = check_dependencies()
assert ffmpeg_ok is True
assert magick_ok is True
@patch("subprocess.run")
def test_check_dependencies_ffmpeg_only(self, mock_run):
"""Test when only FFmpeg is available."""
def side_effect(*args, **kwargs):
if "ffmpeg" in args[0]:
return MagicMock(returncode=0)
return MagicMock(returncode=1)
mock_run.side_effect = side_effect
ffmpeg_ok, magick_ok = check_dependencies()
assert ffmpeg_ok is True
assert magick_ok is False
class TestFileConversion:
"""Test file conversion functionality."""
@patch("subprocess.run")
@patch("media_convert.detect_media_type")
def test_convert_video_file_dry_run(self, mock_detect, mock_run):
"""Test video conversion in dry-run mode."""
mock_detect.return_value = "video"
result = convert_file(
Path("input.mp4"),
Path("output.mp4"),
preset="web",
dry_run=True
)
assert result is True
mock_run.assert_not_called()
@patch("subprocess.run")
@patch("media_convert.detect_media_type")
def test_convert_image_file_success(self, mock_detect, mock_run):
"""Test successful image conversion."""
mock_detect.return_value = "image"
mock_run.return_value = MagicMock(returncode=0)
result = convert_file(
Path("input.png"),
Path("output.jpg"),
preset="web"
)
assert result is True
mock_run.assert_called_once()
@patch("subprocess.run")
@patch("media_convert.detect_media_type")
def test_convert_file_error(self, mock_detect, mock_run):
"""Test conversion error handling."""
mock_detect.return_value = "video"
mock_run.side_effect = Exception("Conversion failed")
result = convert_file(
Path("input.mp4"),
Path("output.mp4")
)
assert result is False
@patch("media_convert.detect_media_type")
def test_convert_unknown_format(self, mock_detect):
"""Test conversion with unknown format."""
mock_detect.return_value = "unknown"
result = convert_file(
Path("input.txt"),
Path("output.txt")
)
assert result is False
class TestQualityPresets:
"""Test quality preset functionality."""
def test_web_preset_settings(self):
"""Test web preset values."""
cmd = build_video_command(
Path("input.mp4"),
Path("output.mp4"),
preset="web"
)
cmd_str = " ".join(cmd)
assert "23" in cmd_str # CRF
assert "128k" in cmd_str # Audio bitrate
def test_archive_preset_settings(self):
"""Test archive preset values."""
cmd = build_video_command(
Path("input.mp4"),
Path("output.mp4"),
preset="archive"
)
cmd_str = " ".join(cmd)
assert "18" in cmd_str # Higher quality CRF
assert "192k" in cmd_str # Higher audio bitrate
def test_mobile_preset_settings(self):
"""Test mobile preset values."""
cmd = build_video_command(
Path("input.mp4"),
Path("output.mp4"),
preset="mobile"
)
cmd_str = " ".join(cmd)
assert "26" in cmd_str # Lower quality CRF
assert "96k" in cmd_str # Lower audio bitrate
if __name__ == "__main__":
pytest.main([__file__, "-v"])