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Tests

Overview

Project File Framework What it tests
subs2srs.Tests UtilsSubsTests.cs xUnit Time formatting, padding, overlap, roundtrip
subs2srs.Tests UtilsNameTests.cs xUnit Token replacement, zero-padding, escape chars
subs2srs.Tests PrefIOTests.cs xUnit JSON round-trip, defaults, migration, special chars
subs2srs.Tests ProjectIOTests.cs xUnit .s2s.json save/load, corruption handling, transient fields
subs2srs.Tests SettingsSnapshotTests.cs xUnit Deep copy, isolation, restore, defaults
subs2srs.Tests TimeShiftRuleTests.cs xUnit Cascading lookup, edge cases, negative shifts
subs2srs.Tests SubsParserTests.cs xUnit SRT/ASS/LRC parsing, error handling, resource disposal

Running

# All tests
make test

# Individual suite (via dotnet)
dotnet test subs2srs.Tests/subs2srs.Tests.csproj --filter "FullyQualifiedName~UtilsSubsTests"

How they work

xUnit suites

All tests use the standard xunit package. No external test frameworks.

  • Parallelization disabled: [assembly: CollectionBehavior(DisableTestParallelization = true)] prevents race conditions on the mutable Settings.Instance singleton.
  • Singleton reset: Settings.Instance.reset() called in constructor and Dispose() to isolate test state.
  • Temp directories: Path.GetTempPath() + Guid creates isolated dirs. Cleaned up via IDisposable.Dispose().
  • Mocking: External CLI tools (ffmpeg, ffprobe) are not invoked. File I/O tests use real temp files.

Test environment

  • All tests create temporary directories via Path.Combine(Path.GetTempPath(), ...) and clean up in Dispose()
  • No root privileges required
  • No real media files, subtitles, or system paths are touched
  • Tests run sequentially to avoid singleton pollution