go test 在同一个包中找不到函数

小编典典

go test 在同一个包中找不到函数

目录结构是：

src
src/pkg
src/pkg/t1.go
src/pkg/t1_test.go

t1.go

package pkg

import (
"fmt"
)

func SayHI(){
    fmt.Println("this is t1")
}

t1_test.go

package pkg

import (
    "testing"
)

func TestXYZ(t *testing.T) {
    SayHI()
}

在 dir 处从命令行调用 go test src/pkg

go test t1_test.go

错误：

./t1_test.go:8: undefined: SayHI
FAIL    command-line-arguments [build failed]

但功能在那里

感谢您的任何提示

阅读 295

2021-12-24

共1个答案

小编典典

它按预期工作。

jnml@fsc-r630:~/src/pkg$ go help test
usage: go test [-c] [-i] [build flags] [packages] [flags for test binary]

'Go test' automates testing the packages named by the import paths.
It prints a summary of the test results in the format:

    ok   archive/tar   0.011s
    FAIL archive/zip   0.022s
    ok   compress/gzip 0.033s
    ...

followed by detailed output for each failed package.

'Go test' recompiles each package along with any files with names matching
the file pattern "*_test.go".  These additional files can contain test functions,
benchmark functions, and example functions.  See 'go help testfunc' for more.

By default, go test needs no arguments.  It compiles and tests the package
with source in the current directory, including tests, and runs the tests.

The package is built in a temporary directory so it does not interfere with the
non-test installation.

In addition to the build flags, the flags handled by 'go test' itself are:

    -c  Compile the test binary to pkg.test but do not run it.

    -i
        Install packages that are dependencies of the test.
        Do not run the test.

The test binary also accepts flags that control execution of the test; these
flags are also accessible by 'go test'.  See 'go help testflag' for details.

For more about build flags, see 'go help build'.
For more about specifying packages, see 'go help packages'.

See also: go build, go vet.
jnml@fsc-r630:~/src/pkg$

换句话说：

go test 没关系。
go test pkg （假设 $GOPATH 是 ~ 并且包在 ~/src/pkg 中）没问题。
go test whatever_test.go不好，因为上面记录的不支持。

要选择要运行的测试，请使用该-run <regular_expression>标志（其中<regular_expression>被解释为两端都有通配符，例如.*<regular_expression>.*）。例如

$ go test -run Say # from within the package's directory

或者

$ go test -run Say my/package/import/path # from anywhere

2021-12-24