“go test”对于单个测试成功，但在测试包时失败

Question

当我运行单个测试时，go test -run TestNewProbeServiceIsSingleton它按预期通过。

go test ./...每当我尝试使用项目根目录测试整个包/应用程序时，就会出现问题：

madjlzz@MadSfeirLab $ go test ./...              
?       github.com/madjlzz/madprobe     [no test files]
ok      github.com/madjlzz/madprobe/controller  (cached) [no tests to run]
?       github.com/madjlzz/madprobe/internal/alerter    [no test files]
?       github.com/madjlzz/madprobe/internal/mock       [no test files]
?       github.com/madjlzz/madprobe/internal/persistence        [no test files]
--- FAIL: TestInsertReturnErrorOnGetFailure (0.00s)
panic: Fail in goroutine after TestNewProbeServiceIsSingleton has completed [recovered]
        panic: Fail in goroutine after TestNewProbeServiceIsSingleton has completed [recovered]
        panic: Fail in goroutine after TestNewProbeServiceIsSingleton has completed

goroutine 23 [running]:
testing.tRunner.func1(0xc0000f6400)
        /usr/local/Cellar/go/1.13.6/libexec/src/testing/testing.go:874 +0x3a3
panic(0x12ccca0, 0xc000095190)
        /usr/local/Cellar/go/1.13.6/libexec/src/runtime/panic.go:679 +0x1b2
github.com/golang/mock/gomock.(*Controller).Finish(0xc000098ff0)
        /Users/madjlzz/Documents/Projects/Go/pkg/mod/github.com/golang/mock@v1.4.3/gomock/controller.go:246 +0x2b2
panic(0x12ccca0, 0xc000095190)
        /usr/local/Cellar/go/1.13.6/libexec/src/runtime/panic.go:679 +0x1b2
testing.(*common).Fail(0xc0000f6200)
        /usr/local/Cellar/go/1.13.6/libexec/src/testing/testing.go:609 +0x151
testing.(*common).FailNow(0xc0000f6200)
        /usr/local/Cellar/go/1.13.6/libexec/src/testing/testing.go:631 +0x2b
testing.(*common).Fatalf(0xc0000f6200, 0x1351581, 0x2e, 0xc0000c4140, 0x5, 0x5)
        /usr/local/Cellar/go/1.13.6/libexec/src/testing/testing.go:716 +0x90
github.com/golang/mock/gomock.(*Controller).Call.func1(0xc000098de0, 0x1301ca0, 0xc000094f90, 0x1343807, 0x3, 0xc000095110, 0x1, 0x1, 0x0, 0x0, ...)
        /Users/madjlzz/Documents/Projects/Go/pkg/mod/github.com/golang/mock@v1.4.3/gomock/controller.go:201 +0x486
github.com/golang/mock/gomock.(*Controller).Call(0xc000098de0, 0x1301ca0, 0xc000094f90, 0x1343807, 0x3, 0xc000095110, 0x1, 0x1, 0x5, 0xc00008a660, ...)
        /Users/madjlzz/Documents/Projects/Go/pkg/mod/github.com/golang/mock@v1.4.3/gomock/controller.go:217 +0xb4
github.com/madjlzz/madprobe/internal/mock.(*MockPersister).Get(0xc000094f90, 0x134426b, 0x7, 0x16, 0x0, 0x0)
        /Users/madjlzz/Documents/Projects/Go/src/github.com/madjlzz/madprobe/internal/mock/entity.go:53 +0xe5
github.com/madjlzz/madprobe/internal/prober.(*service).Insert(0xc000098e70, 0x134426b, 0x7, 0x1348f2d, 0x16, 0x0, 0x0, 0x5, 0xc00008a660, 0x156df40, ...)
        /Users/madjlzz/Documents/Projects/Go/src/github.com/madjlzz/madprobe/internal/prober/service.go:63 +0x19b
github.com/madjlzz/madprobe/internal/prober.TestInsertReturnErrorOnGetFailure(0xc0000f6400)
        /Users/madjlzz/Documents/Projects/Go/src/github.com/madjlzz/madprobe/internal/prober/service_test.go:59 +0x4fb
testing.tRunner(0xc0000f6400, 0x135be98)
        /usr/local/Cellar/go/1.13.6/libexec/src/testing/testing.go:909 +0xc9
created by testing.(*T).Run
        /usr/local/Cellar/go/1.13.6/libexec/src/testing/testing.go:960 +0x350
FAIL    github.com/madjlzz/madprobe/internal/prober     0.287s
?       github.com/madjlzz/madprobe/util        [no test files]
FAIL

应用程序构建没有任何错误：

madjlzz@MadSfeirLab $ go build .   
madjlzz@MadSfeirLab $ 

我的 Golang 版本是：

madjlzz@MadSfeirLab $ go version
go version go1.13.6 darwin/amd64

我还使用mockgen版本来模拟我的界面1.4.3

我是 Golang 新手，但感觉我有点想念一些关于如何运行测试的东西......

您还可以通过克隆项目自行运行测试

Answer 1

我假设你的代码看起来像（我有这样的问题）：

for _, subtest := range subtests{
   t.Run(subtest.name,
        func(t *testing.T) {
           do something with subtest...
        }
}

但它必须看起来像：

for _, s := range subtests{
   subtest:=s

   t.Run(subtest.name,
        func(t *testing.T) {
           do something with subtest...
        }
}

注意子测试：=s

这是这种情况下可能的解决方案之一。