"""Tests for ffmpeg_merge tool."""
from pathlib import Path
import pytest
from ffmpeg_mcp_lite.tools.merge import ffmpeg_merge
@pytest.mark.asyncio
async def test_merge_videos(sample_video: Path, temp_dir: Path, monkeypatch):
"""Test merging two video files."""
monkeypatch.setenv("FFMPEG_OUTPUT_DIR", str(temp_dir))
from ffmpeg_mcp_lite import config
config.config = config.Config()
# Use the same video twice for testing
result = await ffmpeg_merge([str(sample_video), str(sample_video)])
assert "Merged 2 files successfully" in result
assert "_merged" in result
@pytest.mark.asyncio
async def test_merge_custom_output(sample_video: Path, temp_dir: Path):
"""Test merging with custom output path."""
output_path = temp_dir / "custom_merged.mp4"
result = await ffmpeg_merge(
[str(sample_video), str(sample_video)],
output_path=str(output_path)
)
assert "Merged 2 files successfully" in result
assert output_path.exists()
@pytest.mark.asyncio
async def test_merge_requires_two_files():
"""Test that at least 2 files are required."""
with pytest.raises(ValueError, match="at least 2 files"):
await ffmpeg_merge(["/some/file.mp4"])
@pytest.mark.asyncio
async def test_merge_file_not_found():
"""Test error handling for non-existent file."""
with pytest.raises(FileNotFoundError):
await ffmpeg_merge(["/nonexistent/file1.mp4", "/nonexistent/file2.mp4"])
