A test execution by human or automation will provide information to be aware & learn.
If there is a metric, it should be for what I got to be aware of & learned. Not for the number of tests. If it is for a test, it is blunder, before taking it as a metric.
One can identify infinite tests; automate adding annotation @test in big numbers. Should this number be a metric?
That is a question to ask when you see a metric on this number.
What is of value to you in this outcome from a test? That value should have a metric, and not test or the number of tests.
Identifying the metric in a context which serves, is not easy.
Number of pass/fail or green/red is a measurement; not a metric!
Anything measured cannot be a metric.
A metric helps to measure in a way that establishes rational correlation & upholds its necessity in business.
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