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go/internal/lsp/regtest/vendor_test.go
Rebecca Stambler 4d5ea46c79 internal/lsp: support go mod vendor as a command
In addition to adding a `go mod vendor` command option, which can be
exposed via an editor client frontend, we show a suggestion to users who
experience the "inconsistent vendoring" error message.

The main change made here is that we save the view initialization error,
and we return it if the view has absolutely no metadata. This seems
reasonable enough, but my fear is that it may lead to us showing
outdated error messages. I will spend some time improving the handling
of initialization errors in follow-up CLs.

Updates golang/go#39100

Change-Id: Iba21fb3fbfa4bca956fdf63736b397c47fc7ae44
Reviewed-on: https://go-review.googlesource.com/c/tools/+/235619
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-06-04 18:33:45 +00:00

63 lines
1.3 KiB
Go

package regtest
import (
"testing"
"golang.org/x/tools/internal/lsp"
"golang.org/x/tools/internal/testenv"
)
const basicProxy = `
-- golang.org/x/hello@v1.2.3/go.mod --
module golang.org/x/hello
go 1.14
-- golang.org/x/hello@v1.2.3/hi/hi.go --
package hi
var Goodbye error
`
func TestInconsistentVendoring(t *testing.T) {
testenv.NeedsGo1Point(t, 14)
const pkgThatUsesVendoring = `
-- go.mod --
module mod.com
go 1.14
require golang.org/x/hello v1.2.3
-- vendor/modules.txt --
-- a/a1.go --
package a
import "golang.org/x/hello/hi"
func _() {
_ = hi.Goodbye
var q int // hardcode a diagnostic
}
`
runner.Run(t, pkgThatUsesVendoring, func(t *testing.T, env *Env) {
env.OpenFile("a/a1.go")
env.Await(
// The editor should pop up a message suggesting that the user
// run `go mod vendor`, along with a button to do so.
// By default, the fake editor always accepts such suggestions,
// so once we see the request, we can assume that `go mod vendor`
// will be executed.
OnceMet(
CompletedWork(lsp.DiagnosticWorkTitle(lsp.FromDidOpen), 1),
ShowMessageRequest("go mod vendor"),
),
)
env.CheckForFileChanges()
env.Await(
OnceMet(
CompletedWork(lsp.DiagnosticWorkTitle(lsp.FromDidChangeWatchedFiles), 1),
DiagnosticAt("a/a1.go", 6, 5),
),
)
}, WithProxy(basicProxy))
}