I make a makefile that executes go test -cover
. Is it possible to fail the make unit_tests
command if coverage is below X? How would I do that?
如果覆盖率低于一定百分比,则单元测试失败
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1条回答 默认 最新
- duanji1482 2018-05-01 20:09关注
You can use
TestMain
in your test to do that. TestMain can act as a custom entry point to tests, and then you can invoketesting.Coverage()
to get access to the coverage stats.So for example, if you want to fail at anything below 80%, you could add this to one of your package's test files:
func TestMain(m *testing.M) { // call flag.Parse() here if TestMain uses flags rc := m.Run() // rc 0 means we've passed, // and CoverMode will be non empty if run with -cover if rc == 0 && testing.CoverMode() != "" { c := testing.Coverage() if c < 0.8 { fmt.Println("Tests passed but coverage failed at", c) rc = -1 } } os.Exit(rc) }
Then
go test -cover
will call this entry point and you'll fail:PASS coverage: 63.0% of statements Tests passed but coverage failed at 0.5862068965517241 exit status 255 FAIL github.com/xxxx/xxx 0.026s
Notice that the number that
testing.Coverage()
returns is lower than what the test reports. I've looked at the code and the function calculates its coverage differently than the test's internal reporting. I'm not sure which is more "correct".本回答被题主选为最佳回答 , 对您是否有帮助呢?解决 无用评论 打赏 举报
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