如何完全覆盖所有包 golang

Question

我只有 24 小时使用 Go，所以我对此非常陌生。

我正在尝试进行完整的测试转换，但是当我运行时

go test -cover new-project/anto/... .

在 new-project/anto/mon 中显示我有 51.8% 的覆盖率，但实际上我有更多的覆盖率，因为在 new-project/anto 中测试了一些测试/integration 我有一个测试文件，我导入 new-project/anto/mon 进行测试。

问题是，当我阅读 Golang 时，仅在测试位于同一文件夹中时才进行测试，但具有单独的文件并不能正确检测到它。

我想知道是否有办法获得全面覆盖。

go test -cover new-project/anto/... .
?       new-project/anto/       [no test files]
ok      new-project/anto/conf   6.060s  coverage: 73.1% of statements
ok      new-project/anto/integration    43.309s coverage: [no statements]
?       new-project/anto/integration/conf   [no test files]
?       new-project/anto/integration/mocks  [no test files]
?       new-project/anto/integration/utils  [no test files]
ok      new-project/anto/logs   0.024s  coverage: 70.5% of statements
ok      new-project/anto/metric 0.012s  coverage: 59.0% of statements
ok      new-project/anto/mon    1.612s  coverage: 51.8% of statements
?       new-project/anto/anotherComponents  [no test files]

做了一些研究，我发现了一个 go-acc 插件，它可以验证所有的包，奇怪的是 mon 原来是 51.8%，现在变成了 29.8%。

go-acc new-project/anto/... .
?       new-project/anto/   [no test files]
ok      new-project/anto//conf  5.030s  coverage: 73.1
ok      new-project/anto//integration   43.117s coverage: 73.5
?       new-project/anto//integration/conf  [no test files]
?       new-project/anto//integration/mocks [no test files]
?       new-project/anto//integration/utils [no test files]
ok      new-project/anto//logs  0.008s  coverage: 22.3
ok      new-project/anto//metric    0.020s  coverage: 59.0
ok      new-project/anto//mon   1.460s  coverage: 29.8
?       new-project/anto//anotherComponents     [no test files]
?       new-project/anto/   [no test files]

Answer 1

第一个命令将为所有包生成coverage.out。第二个解析coverage.out并输出结果：

go test ./...  -coverpkg=./... -coverprofile ./coverage.out
go tool cover -func ./coverage.out

样本输出：

golang.org/x/example/stringutil/reverse.go:21: Reverse      100.0%
total:                                         (statements) 100.0%

有关更多详细信息，请参阅各种 help 输出：

• go help test
• go help testflags
• go help packages
• go tool cover --help