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go/internal/lsp/fake/editor_test.go
Rebecca Stambler 88e38c1d8d internal/lsp: make sure diagnostics only refer to existing files
We were previously sending diagnostics for nonexistent files, and then
adding them to the snapshot in the process. Remove this behavior, and
add a regression test. Case insensitive filesystems were too confusing
to write a test for, but fortunately, Filippo reported another instance
of this bug, so I used that for the regression test.

Fixes golang/go#38602

Change-Id: I4ef6b51944f3338e838875a5aafffd066e8392f4
Reviewed-on: https://go-review.googlesource.com/c/tools/+/230315
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
2020-05-07 02:01:22 +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)
if err != nil {
t.Fatal(err)
}
defer ws.Close()
ctx := context.Background()
editor := NewEditor(ws)
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)
}
}