[davidnmbond]

Task.Run was given the cancellation token, so stopping before the scheduled task
began made Stop() throw TaskCanceledException. Adds tests for Engine, TimerAsync,
AsyncTimerEngine and EngineException (100% line and branch), the Microsoft code
coverage collector with coverage.config, xunit.v3 4.0.2 and the MTP runner opt-in.

[codacy-production]

Up to standards ✅

🟢 Issues 0 issues

Results:
0 new issues

View in Codacy

🟢 Metrics 61 complexity · 0 duplication

Metric	Results
Complexity	61
Duplication	0

View in Codacy

🟢 Coverage 100.00% diff coverage · +89.00% coverage variation

Metric	Results
Coverage variation	✅ +89.00% coverage variation
Diff coverage	✅ 100.00% diff coverage

View coverage diff in Codacy

Coverage variation details

	Coverable lines	Covered lines	Coverage
Common ancestor commit (9562187)	100	11	11.00%
Head commit (b3afb4f)	100 (+0)	100 (+89)	100.00% (+89.00%)

Coverage variation is the difference between the coverage for the head and common ancestor commits of the pull request branch: <coverage of head commit> - <coverage of common ancestor commit>

Diff coverage details

	Coverable lines	Covered lines	Diff coverage
Pull request (#18)	3	3	100.00%

Diff coverage is the percentage of lines that are covered by tests out of the coverable lines that the pull request added or modified: <covered lines added or modified>/<coverable lines added or modified> * 100%

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_{TIP This summary will be updated as you push new changes.}