| // Copyright 2022 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 diagnostics |
| |
| import ( |
| "fmt" |
| "testing" |
| |
| "golang.org/x/tools/internal/lsp/protocol" |
| . "golang.org/x/tools/internal/lsp/regtest" |
| ) |
| |
| // Test for golang/go#50267: diagnostics should be re-sent after a file is |
| // opened. |
| func TestDiagnosticsAreResentAfterCloseOrOpen(t *testing.T) { |
| const files = ` |
| -- go.mod -- |
| module mod.com |
| |
| go 1.16 |
| -- main.go -- |
| package main |
| |
| func _() { |
| x := 2 |
| } |
| ` |
| Run(t, files, func(_ *testing.T, env *Env) { // Create a new workspace-level directory and empty file. |
| env.OpenFile("main.go") |
| var afterOpen protocol.PublishDiagnosticsParams |
| env.Await( |
| OnceMet( |
| env.DoneWithOpen(), |
| ReadDiagnostics("main.go", &afterOpen), |
| ), |
| ) |
| env.CloseBuffer("main.go") |
| var afterClose protocol.PublishDiagnosticsParams |
| env.Await( |
| OnceMet( |
| env.DoneWithClose(), |
| ReadDiagnostics("main.go", &afterClose), |
| ), |
| ) |
| if afterOpen.Version == afterClose.Version { |
| t.Errorf("publishDiagnostics: got the same version after closing (%d) as after opening", afterOpen.Version) |
| } |
| env.OpenFile("main.go") |
| var afterReopen protocol.PublishDiagnosticsParams |
| env.Await( |
| OnceMet( |
| env.DoneWithOpen(), |
| ReadDiagnostics("main.go", &afterReopen), |
| ), |
| ) |
| if afterReopen.Version == afterClose.Version { |
| t.Errorf("pubslishDiagnostics: got the same version after reopening (%d) as after closing", afterClose.Version) |
| } |
| }) |
| } |
| |
| // Test for the "chattyDiagnostics" setting: we should get re-published |
| // diagnostics after every file change, even if diagnostics did not change. |
| func TestChattyDiagnostics(t *testing.T) { |
| const files = ` |
| -- go.mod -- |
| module mod.com |
| |
| go 1.16 |
| -- main.go -- |
| package main |
| |
| func _() { |
| x := 2 |
| } |
| |
| // Irrelevant comment #0 |
| ` |
| |
| WithOptions( |
| Settings{ |
| "chattyDiagnostics": true, |
| }, |
| ).Run(t, files, func(_ *testing.T, env *Env) { // Create a new workspace-level directory and empty file. |
| |
| env.OpenFile("main.go") |
| var d protocol.PublishDiagnosticsParams |
| env.Await( |
| OnceMet( |
| env.DoneWithOpen(), |
| ReadDiagnostics("main.go", &d), |
| ), |
| ) |
| |
| if len(d.Diagnostics) != 1 { |
| t.Fatalf("len(Diagnostics) = %d, want 1", len(d.Diagnostics)) |
| } |
| msg := d.Diagnostics[0].Message |
| |
| for i := 0; i < 5; i++ { |
| before := d.Version |
| env.RegexpReplace("main.go", "Irrelevant comment #.", fmt.Sprintf("Irrelevant comment #%d", i)) |
| env.Await( |
| OnceMet( |
| env.DoneWithChange(), |
| ReadDiagnostics("main.go", &d), |
| ), |
| ) |
| |
| if d.Version == before { |
| t.Errorf("after change, got version %d, want new version", d.Version) |
| } |
| |
| // As a sanity check, make sure we have the same diagnostic. |
| if len(d.Diagnostics) != 1 { |
| t.Fatalf("len(Diagnostics) = %d, want 1", len(d.Diagnostics)) |
| } |
| newMsg := d.Diagnostics[0].Message |
| if newMsg != msg { |
| t.Errorf("after change, got message %q, want %q", newMsg, msg) |
| } |
| } |
| }) |
| } |