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go/internal/lsp/regtest/modfile_test.go
Rebecca Stambler 58eba7e750 internal/lsp: refactor go.mod diagnostics to simplify the API
Currently, diagnostics for modules that are missing from the go.mod
appear in the Go files in which those modules are imported. As a result,
the diagnostics were previously calculated as part of the Go file
diagnostic calculations. This is convoluted and required passing around
an extra map.

This CL puts that logic in the ModTidyHandle where it belongs.
The diagnostics for the Go files are combined from the multiple sources.

Also, added a skipped test for golang/go#39784, since this CL was
originally intended to be a fix for that issue...

Change-Id: Ic0f9aa235dcd56ea131a2339de9801346f715415
Reviewed-on: https://go-review.googlesource.com/c/tools/+/242579
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-07-16 22:50:03 +00:00

295 lines
6.2 KiB
Go

// Copyright 2020 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package regtest
import (
"testing"
"golang.org/x/tools/internal/lsp"
"golang.org/x/tools/internal/lsp/protocol"
"golang.org/x/tools/internal/lsp/tests"
"golang.org/x/tools/internal/testenv"
)
const proxy = `
-- example.com@v1.2.3/go.mod --
module example.com
go 1.12
-- example.com@v1.2.3/blah/blah.go --
package blah
const Name = "Blah"
`
func TestModFileModification(t *testing.T) {
testenv.NeedsGo1Point(t, 14)
const untidyModule = `
-- go.mod --
module mod.com
-- main.go --
package main
import "example.com/blah"
func main() {
fmt.Println(blah.Name)
}`
withOptions(WithProxy(proxy)).run(t, untidyModule, func(t *testing.T, env *Env) {
// Open the file and make sure that the initial workspace load does not
// modify the go.mod file.
goModContent := env.ReadWorkspaceFile("go.mod")
env.OpenFile("main.go")
env.Await(
env.DiagnosticAtRegexp("main.go", "\"example.com/blah\""),
)
if got := env.ReadWorkspaceFile("go.mod"); got != goModContent {
t.Fatalf("go.mod changed on disk:\n%s", tests.Diff(goModContent, got))
}
// Save the buffer, which will format and organize imports.
// Confirm that the go.mod file still does not change.
env.SaveBuffer("main.go")
env.Await(
env.DiagnosticAtRegexp("main.go", "\"example.com/blah\""),
)
if got := env.ReadWorkspaceFile("go.mod"); got != goModContent {
t.Fatalf("go.mod changed on disk:\n%s", tests.Diff(goModContent, got))
}
})
}
func TestIndirectDependencyFix(t *testing.T) {
testenv.NeedsGo1Point(t, 14)
const mod = `
-- go.mod --
module mod.com
go 1.12
require example.com v1.2.3 // indirect
-- main.go --
package main
import "example.com/blah"
func main() {
fmt.Println(blah.Name)
`
const want = `module mod.com
go 1.12
require example.com v1.2.3
`
runner.Run(t, mod, func(t *testing.T, env *Env) {
env.OpenFile("go.mod")
d := env.Await(
env.DiagnosticAtRegexp("go.mod", "// indirect"),
)
if len(d) == 0 {
t.Fatalf("no diagnostics")
}
params, ok := d[0].(*protocol.PublishDiagnosticsParams)
if !ok {
t.Fatalf("expected diagnostic of type PublishDiagnosticParams, got %T", d[0])
}
env.ApplyQuickFixes("go.mod", params.Diagnostics)
if got := env.Editor.BufferText("go.mod"); got != want {
t.Fatalf("unexpected go.mod content:\n%s", tests.Diff(want, got))
}
}, WithProxy(proxy))
}
// Test to reproduce golang/go#39041. It adds a new require to a go.mod file
// that already has an unused require.
func TestNewDepWithUnusedDep(t *testing.T) {
testenv.NeedsGo1Point(t, 14)
const proxy = `
-- github.com/esimov/caire@v1.2.5/go.mod --
module github.com/esimov/caire
go 1.12
-- github.com/esimov/caire@v1.2.5/caire.go --
package caire
func RemoveTempImage() {}
-- google.golang.org/protobuf@v1.20.0/go.mod --
module google.golang.org/protobuf
go 1.12
-- google.golang.org/protobuf@v1.20.0/hello/hello.go --
package hello
`
const repro = `
-- go.mod --
module mod.com
go 1.14
require google.golang.org/protobuf v1.20.0
-- main.go --
package main
import (
"github.com/esimov/caire"
)
func _() {
caire.RemoveTempImage()
}`
runner.Run(t, repro, func(t *testing.T, env *Env) {
env.OpenFile("go.mod")
env.OpenFile("main.go")
d := env.Await(
env.DiagnosticAtRegexp("main.go", `"github.com/esimov/caire"`),
)
if len(d) == 0 {
t.Fatalf("no diagnostics")
}
params, ok := d[0].(*protocol.PublishDiagnosticsParams)
if !ok {
t.Fatalf("expected diagnostic of type PublishDiagnosticParams, got %T", d[0])
}
env.ApplyQuickFixes("main.go", params.Diagnostics)
want := `module mod.com
go 1.14
require (
github.com/esimov/caire v1.2.5
google.golang.org/protobuf v1.20.0
)
`
if got := env.Editor.BufferText("go.mod"); got != want {
t.Fatalf("TestNewDepWithUnusedDep failed:\n%s", tests.Diff(want, got))
}
}, WithProxy(proxy))
}
// TODO: For this test to be effective, the sandbox's file watcher must respect
// the file watching GlobPattern in the capability registration. See
// golang/go#39384.
func TestModuleChangesOnDisk(t *testing.T) {
testenv.NeedsGo1Point(t, 14)
const mod = `
-- go.mod --
module mod.com
go 1.12
require example.com v1.2.3
-- main.go --
package main
func main() {
fmt.Println(blah.Name)
`
const want = `module mod.com
go 1.12
`
runner.Run(t, mod, func(t *testing.T, env *Env) {
env.Await(
CompletedWork(lsp.DiagnosticWorkTitle(lsp.FromInitialWorkspaceLoad), 1),
env.DiagnosticAtRegexp("go.mod", "require"),
)
env.Sandbox.RunGoCommand(env.Ctx, "mod", "tidy")
env.Await(
EmptyDiagnostics("go.mod"),
)
}, WithProxy(proxy))
}
func TestBadlyVersionedModule(t *testing.T) {
t.Skipf("not fixed yet, see golang/go#39784")
const badModule = `
-- example.com/blah/@v/list --
v1.0.0
-- example.com/blah/@v/v1.0.0.mod --
module example.com
go 1.12
-- example.com/blah@v1.0.0/blah.go --
package blah
const Name = "Blah"
-- example.com/blah@v1.0.0/blah_test.go --
package blah_test
import (
"testing"
)
func TestBlah(t *testing.T) {}
-- example.com/blah/v2/@v/list --
v2.0.0
-- example.com/blah/v2/@v/v2.0.0.mod --
module example.com
go 1.12
-- example.com/blah/v2@v2.0.0/blah.go --
package blah
const Name = "Blah"
-- example.com/blah/v2@v2.0.0/blah_test.go --
package blah_test
import (
"testing"
"example.com/blah"
)
func TestBlah(t *testing.T) {}
`
const pkg = `
-- go.mod --
module mod.com
require (
example.com/blah/v2 v2.0.0
)
-- main.go --
package main
import "example.com/blah/v2"
func main() {
fmt.Println(blah.Name)
}
`
runner.Run(t, pkg, func(t *testing.T, env *Env) {
env.OpenFile("main.go")
env.OpenFile("go.mod")
metBy := env.Await(
env.DiagnosticAtRegexp("go.mod", "example.com/blah/v2"),
NoDiagnostics("main.go"),
)
d, ok := metBy[0].(*protocol.PublishDiagnosticsParams)
if !ok {
t.Fatalf("unexpected type for metBy (%T)", metBy)
}
env.ApplyQuickFixes("main.go", d.Diagnostics)
const want = `
module mod.com
require (
example.com/blah v1.0.0
example.com/blah/v2 v2.0.0
)
`
if got := env.Editor.BufferText("go.mod"); got != want {
t.Fatalf("suggested fixes failed:\n%s", tests.Diff(want, got))
}
}, WithProxy(badModule))
}