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https://github.com/golang/go
synced 2024-09-30 22:48:32 -06:00
e31c80b82c
This CL got away from me a little. For a number of reasons, the existing goimports API of passing in values for various GO* values was not working. For one, the number of necessary variables kept growing. For another, we tried to avoid calling `go env` in GOPATH mode by using `build.Default`, but that turns out to be buggy; see golang/go#39838. And finally, it created massive confusion about whether the values were intended to be read from the OS environment, or fully evaluated by the `go` command. There are only two users of the internal imports API, so there really shouldn't need to be more than two modes. For the command line tool, we have to call `go env` to deal with the `go/build` bug. So we just do it. Tests use that same path, but can augment the enviroment to set themselves up. In contrast, `gopls` needs to fully specify the environment. It can simply pass in the fully evaluated GO* values. Finally, make the change I was actually here to make: propagate GOMODCACHE and use it where appropriate. Fixes golang/go#39761. Change-Id: I720c69839d91d66d98e94dfc5f065ba0279c5542 Reviewed-on: https://go-review.googlesource.com/c/tools/+/239754 Run-TryBot: Heschi Kreinick <heschi@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Rebecca Stambler <rstambler@golang.org>
82 lines
1.5 KiB
Go
82 lines
1.5 KiB
Go
package imports
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import (
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"os"
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"testing"
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"golang.org/x/tools/internal/gocommand"
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"golang.org/x/tools/internal/testenv"
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)
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func TestMain(m *testing.M) {
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testenv.ExitIfSmallMachine()
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os.Exit(m.Run())
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}
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// TestNilOpts tests that process does not crash with nil opts.
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func TestNilOpts(t *testing.T) {
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var testOpts = []struct {
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name string
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opt *Options
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}{
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{
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name: "nil",
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opt: nil,
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},
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{
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name: "nil env",
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opt: &Options{Comments: true, TabIndent: true, TabWidth: 8},
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},
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{
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name: "default",
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opt: &Options{
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Env: &ProcessEnv{
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GocmdRunner: &gocommand.Runner{},
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},
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Comments: true,
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TabIndent: true,
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TabWidth: 8,
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},
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},
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}
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input := `package p
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func _() {
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fmt.Println()
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}
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`
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want := `package p
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import "fmt"
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func _() {
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fmt.Println()
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}
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`
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for _, test := range testOpts {
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// Test Process
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got, err := Process("", []byte(input), test.opt)
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if err != nil {
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t.Errorf("%s: %s", test.name, err.Error())
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}
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if string(got) != want {
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t.Errorf("%s: Process: Got:\n%s\nWant:\n%s\n", test.name, string(got), want)
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}
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// Test FixImports and ApplyFixes
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fixes, err := FixImports("", []byte(input), test.opt)
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if err != nil {
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t.Errorf("%s: %s", test.name, err.Error())
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}
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got, err = ApplyFixes(fixes, "", []byte(input), test.opt, 0)
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if err != nil {
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t.Errorf("%s: %s", test.name, err.Error())
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}
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if string(got) != want {
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t.Errorf("%s: ApplyFix: Got:\n%s\nWant:\n%s\n", test.name, string(got), want)
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}
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}
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}
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