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go/internal/lsp/fake/editor_test.go
Rebecca Stambler f01a4bec33 internal/lsp: support opening single files
This change permits starting gopls without a root URI or any workspace
folders. If no view is found for an opened file, we try to create a new
view based on the module root of that file. In GOPATH mode, we just
use the directory containing the file.

I wrote a regtest for this by adding a new configuration that gets
propagated to the sandbox. I'm not sure if this is the best way to do
that, so I'll let Rob advise.

Fixes golang/go#34160

Change-Id: I3deca3ac1b86b69eba416891a1c28fd35658a2ed
Reviewed-on: https://go-review.googlesource.com/c/tools/+/240099
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-07-01 22:10:12 +00:00

83 lines
1.6 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 fake
import (
"context"
"testing"
)
func TestContentPosition(t *testing.T) {
content := "foo\n😀\nbar"
tests := []struct {
offset, wantLine, wantColumn int
}{
{0, 0, 0},
{3, 0, 3},
{4, 1, 0},
{5, 1, 1},
{6, 2, 0},
}
for _, test := range tests {
pos, err := contentPosition(content, test.offset)
if err != nil {
t.Fatal(err)
}
if pos.Line != test.wantLine {
t.Errorf("contentPosition(%q, %d): Line = %d, want %d", content, test.offset, pos.Line, test.wantLine)
}
if pos.Column != test.wantColumn {
t.Errorf("contentPosition(%q, %d): Column = %d, want %d", content, test.offset, pos.Column, test.wantColumn)
}
}
}
const exampleProgram = `
-- go.mod --
go 1.12
-- main.go --
package main
import "fmt"
func main() {
fmt.Println("Hello World.")
}
`
func TestClientEditing(t *testing.T) {
ws, err := NewSandbox("TestClientEditing", exampleProgram, "", false, false)
if err != nil {
t.Fatal(err)
}
defer ws.Close()
ctx := context.Background()
editor := NewEditor(ws, EditorConfig{})
if err := editor.OpenFile(ctx, "main.go"); err != nil {
t.Fatal(err)
}
if err := editor.EditBuffer(ctx, "main.go", []Edit{
{
Start: Pos{5, 14},
End: Pos{5, 26},
Text: "Hola, mundo.",
},
}); err != nil {
t.Fatal(err)
}
got := editor.buffers["main.go"].text()
want := `package main
import "fmt"
func main() {
fmt.Println("Hola, mundo.")
}
`
if got != want {
t.Errorf("got text %q, want %q", got, want)
}
}