英文:
To use package properly, how to arrange directory, file name, unit test file?
问题
我的源文件树结构如下：
/src
/pkg
/foo
foo.go
foo_test.go
在 foo.go 中：
package foo
func bar(n int) {
...
}
在 foo_test.go 中：
package foo
func testBar(t *testing.T) {
bar(10)
...
}
我的问题是：
- 包名与目录名、源文件名有关吗？
- 如果一个包只有一个源文件，我需要将它放在一个目录中吗？
- 我应该将
foo.go和foo_test.go放在同一个包中吗？ - 在
foo_test.go中，由于它与foo.go在同一个包中，我没有导入foo。但是当我使用 6g 编译foo_test.go时，它显示bar() 未定义。我该怎么办？
英文:
My source files tree is like this:
/src
/pkg
/foo
foo.go
foo_test.go
Inside foo.go:
package foo
func bar(n int) {
...
}
inside foo_test.go:
package foo
func testBar(t *testing.T) {
bar(10)
...
}
My questions are:
- Does package name relates to directory name, source file name?
- If there is only one source file for a package, need I put it in a directory?
- Should I put
foo.goandfoo_test.goin the same package? - In the
foo_test.go, as it's in the same package asfoo.go, I didn't importfoo. But when I compilefoo_test.gowith 6g, it saysbar() is undefined. What should I do?
答案1
得分: 9
1 - 语言规范中提到：
> 具有相同PackageName的一组文件形成了一个包的实现。实现可能要求一个包的所有源文件都位于同一个目录中。
因此，似乎对文件/目录的命名没有要求，但如果将形成一个包的所有文件放在一个目录中会更安全。
2 - 显然，文件必须位于某个目录中。我猜你的意思是“我应该将它放在src的子目录中吗？”根据上面的引用，如果你真的想要，你可以直接将所有文件放在src中。
3 - 是的。
4 - 使用go test
英文:
1 - The language spec says the following:
> A set of files sharing the same PackageName form the implementation of a package. An implementation may require that all source files for a package inhabit the same directory.
So it seems that there is no requirement on the naming of files / directories, but it would be safer to put all file that form a package in one directory.
2 - Obviously the file must be in some directory. I assume you mean "should I put it in a subdirectory of src?" It seems to me based on the above quote that you could have all your files in src directly if you really wanted to.
3 - Yes.
4 - Use go test
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