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描述
What version of Go are you using (go version)?
What did you do?
$ go test -json -cover ./...
What did you expect to see?
Coverage statements output only once, or one of the events identified differently from the other.
{"Time":"2019-06-20T18:51:29.178821431-04:00","Action":"output","Package":"gotest.tools/assert/cmp","Output":"ok \tgotest.tools/assert/cmp\t(cached)\tcoverage: 91.1% of statements\n"}
{"Time":"2019-06-20T18:51:29.183457861-04:00","Action":"output","Package":"gotest.tools/assert","Output":"ok \tgotest.tools/assert\t(cached)\tcoverage: 85.2% of statements\n"}
What did you see instead?
Coverage statements output twice.
{"Time":"2019-06-20T18:51:29.178811583-04:00","Action":"output","Package":"gotest.tools/assert/cmp","Output":"coverage: 91.1% of statements\n"}
{"Time":"2019-06-20T18:51:29.178821431-04:00","Action":"output","Package":"gotest.tools/assert/cmp","Output":"ok \tgotest.tools/assert/cmp\t(cached)\tcoverage: 91.1% of statements\n"}
{"Time":"2019-06-20T18:51:29.183452652-04:00","Action":"output","Package":"gotest.tools/assert","Output":"coverage: 85.2% of statements\n"}
{"Time":"2019-06-20T18:51:29.183457861-04:00","Action":"output","Package":"gotest.tools/assert","Output":"ok \tgotest.tools/assert\t(cached)\tcoverage: 85.2% of statements\n"}
Related to #23036, if one of the events could be identified differently the duplicate output would be easy to filter out.
I noticed that go test -v has the same behaviour, but i'm not sure why.