| // 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 codelens |
| |
| import ( |
| "runtime" |
| "testing" |
| |
| "golang.org/x/tools/gopls/internal/protocol" |
| "golang.org/x/tools/gopls/internal/protocol/command" |
| "golang.org/x/tools/gopls/internal/server" |
| . "golang.org/x/tools/gopls/internal/test/integration" |
| "golang.org/x/tools/gopls/internal/test/integration/fake" |
| "golang.org/x/tools/gopls/internal/util/bug" |
| "golang.org/x/tools/internal/testenv" |
| ) |
| |
| func TestGCDetails_Toggle(t *testing.T) { |
| if runtime.GOOS == "android" { |
| t.Skipf("the gc details code lens doesn't work on Android") |
| } |
| // The overlay portion of the test fails with go1.19. |
| // I'm not sure why and not inclined to investigate. |
| testenv.NeedsGo1Point(t, 20) |
| |
| const mod = ` |
| -- go.mod -- |
| module mod.com |
| |
| go 1.15 |
| -- main.go -- |
| package main |
| |
| import "fmt" |
| |
| func main() { |
| fmt.Println(42) |
| } |
| ` |
| WithOptions( |
| Settings{ |
| "codelenses": map[string]bool{ |
| "gc_details": true, |
| }, |
| }, |
| ).Run(t, mod, func(t *testing.T, env *Env) { |
| env.OpenFile("main.go") |
| env.ExecuteCodeLensCommand("main.go", command.GCDetails, nil) |
| |
| env.OnceMet( |
| CompletedWork(server.DiagnosticWorkTitle(server.FromToggleGCDetails), 1, true), |
| Diagnostics( |
| ForFile("main.go"), |
| WithMessage("42 escapes"), |
| WithSeverityTags("optimizer details", protocol.SeverityInformation, nil), |
| ), |
| ) |
| |
| // GCDetails diagnostics should be reported even on unsaved |
| // edited buffers, thanks to the magic of overlays. |
| env.SetBufferContent("main.go", ` |
| package main |
| func main() {} |
| func f(x int) *int { return &x }`) |
| env.AfterChange(Diagnostics( |
| ForFile("main.go"), |
| WithMessage("x escapes"), |
| WithSeverityTags("optimizer details", protocol.SeverityInformation, nil), |
| )) |
| |
| // Toggle the GC details code lens again so now it should be off. |
| env.ExecuteCodeLensCommand("main.go", command.GCDetails, nil) |
| env.OnceMet( |
| CompletedWork(server.DiagnosticWorkTitle(server.FromToggleGCDetails), 2, true), |
| NoDiagnostics(ForFile("main.go")), |
| ) |
| }) |
| } |
| |
| // Test for the crasher in golang/go#54199 |
| func TestGCDetails_NewFile(t *testing.T) { |
| bug.PanicOnBugs = false |
| const src = ` |
| -- go.mod -- |
| module mod.test |
| |
| go 1.12 |
| ` |
| |
| WithOptions( |
| Settings{ |
| "codelenses": map[string]bool{ |
| "gc_details": true, |
| }, |
| }, |
| ).Run(t, src, func(t *testing.T, env *Env) { |
| env.CreateBuffer("p_test.go", "") |
| |
| hasGCDetails := func() bool { |
| lenses := env.CodeLens("p_test.go") // should not crash |
| for _, lens := range lenses { |
| if lens.Command.Command == command.GCDetails.String() { |
| return true |
| } |
| } |
| return false |
| } |
| |
| // With an empty file, we shouldn't get the gc_details codelens because |
| // there is nowhere to position it (it needs a package name). |
| if hasGCDetails() { |
| t.Errorf("got the gc_details codelens for an empty file") |
| } |
| |
| // Edit to provide a package name. |
| env.EditBuffer("p_test.go", fake.NewEdit(0, 0, 0, 0, "package p")) |
| |
| // Now we should get the gc_details codelens. |
| if !hasGCDetails() { |
| t.Errorf("didn't get the gc_details codelens for a valid non-empty Go file") |
| } |
| }) |
| } |