| // Copyright 2019 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 cmdtest |
| |
| import ( |
| "fmt" |
| "testing" |
| |
| "golang.org/x/tools/internal/lsp/cmd" |
| "golang.org/x/tools/internal/lsp/source" |
| "golang.org/x/tools/internal/tool" |
| |
| "golang.org/x/tools/internal/span" |
| ) |
| |
| func (r *runner) SignatureHelp(t *testing.T, spn span.Span, expectedSignature *source.SignatureInformation) { |
| goldenTag := "-signature" |
| if expectedSignature != nil { |
| goldenTag = expectedSignature.Label + goldenTag |
| } |
| uri := spn.URI() |
| filename := uri.Filename() |
| target := filename + fmt.Sprintf(":%v:%v", spn.Start().Line(), spn.Start().Column()) |
| |
| app := cmd.New("gopls-test", r.data.Config.Dir, r.data.Config.Env, r.options) |
| got := CaptureStdOut(t, func() { |
| tool.Run(r.ctx, app, append([]string{"-remote=internal", "signature"}, target)) |
| }) |
| |
| expect := string(r.data.Golden(goldenTag, filename, func() ([]byte, error) { |
| return []byte(got), nil |
| })) |
| |
| if expect != got { |
| t.Errorf("signature failed failed for %s expected:\n%s\ngot:\n%s", filename, expect, got) |
| } |
| } |