| // 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 regtest |
| |
| import ( |
| "testing" |
| |
| "golang.org/x/tools/internal/lsp/fake" |
| ) |
| |
| // Use mod.com for all go.mod files due to golang/go#35230. |
| const exampleProgram = ` |
| -- go.mod -- |
| module mod.com |
| |
| go 1.12 |
| -- main.go -- |
| package main |
| |
| import "fmt" |
| |
| func main() { |
| fmt.Println("Hello World.") |
| }` |
| |
| func TestDiagnosticErrorInEditedFile(t *testing.T) { |
| runner.Run(t, exampleProgram, func(env *Env) { |
| // Deleting the 'n' at the end of Println should generate a single error |
| // diagnostic. |
| env.OpenFile("main.go") |
| env.RegexpReplace("main.go", "Printl(n)", "") |
| env.Await(env.DiagnosticAtRegexp("main.go", "Printl")) |
| }) |
| } |
| |
| const onlyMod = ` |
| -- go.mod -- |
| module mod.com |
| |
| go 1.12 |
| ` |
| |
| func TestMissingImportDiagsClearOnFirstFile(t *testing.T) { |
| t.Skip("skipping due to golang.org/issues/37195") |
| t.Parallel() |
| runner.Run(t, onlyMod, func(env *Env) { |
| env.CreateBuffer("main.go", "package main\n\nfunc m() {\nlog.Println()\n}") |
| env.SaveBuffer("main.go") |
| // TODO: this shouldn't actually happen |
| env.Await(env.DiagnosticAtRegexp("main.go", "Println")) |
| }) |
| } |
| |
| const brokenFile = `package main |
| |
| const Foo = "abc |
| ` |
| |
| func TestDiagnosticErrorInNewFile(t *testing.T) { |
| runner.Run(t, brokenFile, func(env *Env) { |
| env.CreateBuffer("broken.go", brokenFile) |
| env.Await(env.DiagnosticAtRegexp("broken.go", "\"abc")) |
| }) |
| } |
| |
| // badPackage contains a duplicate definition of the 'a' const. |
| const badPackage = ` |
| -- go.mod -- |
| module mod.com |
| |
| go 1.12 |
| -- a.go -- |
| package consts |
| |
| const a = 1 |
| -- b.go -- |
| package consts |
| |
| const a = 2 |
| ` |
| |
| func TestDiagnosticClearingOnEdit(t *testing.T) { |
| runner.Run(t, badPackage, func(env *Env) { |
| env.OpenFile("b.go") |
| env.Await(env.DiagnosticAtRegexp("a.go", "a = 1"), env.DiagnosticAtRegexp("b.go", "a = 2")) |
| |
| // Fix the error by editing the const name in b.go to `b`. |
| env.RegexpReplace("b.go", "(a) = 2", "b") |
| env.Await(EmptyDiagnostics("a.go"), EmptyDiagnostics("b.go")) |
| }) |
| } |
| |
| func TestDiagnosticClearingOnDelete(t *testing.T) { |
| runner.Run(t, badPackage, func(env *Env) { |
| env.OpenFile("a.go") |
| env.Await(env.DiagnosticAtRegexp("a.go", "a = 1"), env.DiagnosticAtRegexp("b.go", "a = 2")) |
| env.RemoveFileFromWorkspace("b.go") |
| |
| env.Await(EmptyDiagnostics("a.go"), EmptyDiagnostics("b.go")) |
| }) |
| } |
| |
| func TestDiagnosticClearingOnClose(t *testing.T) { |
| runner.Run(t, badPackage, func(env *Env) { |
| env.CreateBuffer("c.go", `package consts |
| |
| const a = 3`) |
| env.Await( |
| env.DiagnosticAtRegexp("a.go", "a = 1"), |
| env.DiagnosticAtRegexp("b.go", "a = 2"), |
| env.DiagnosticAtRegexp("c.go", "a = 3")) |
| env.CloseBuffer("c.go") |
| env.Await( |
| env.DiagnosticAtRegexp("a.go", "a = 1"), |
| env.DiagnosticAtRegexp("b.go", "a = 2"), |
| EmptyDiagnostics("c.go")) |
| }) |
| } |
| |
| func TestIssue37978(t *testing.T) { |
| runner.Run(t, exampleProgram, func(env *Env) { |
| // Create a new workspace-level directory and empty file. |
| env.CreateBuffer("c/c.go", "") |
| |
| // Write the file contents with a missing import. |
| env.EditBuffer("c/c.go", fake.Edit{ |
| Text: `package c |
| |
| const a = http.MethodGet |
| `, |
| }) |
| env.Await( |
| env.DiagnosticAtRegexp("c/c.go", "http.MethodGet"), |
| ) |
| // Save file, which will organize imports, adding the expected import. |
| // Expect the diagnostics to clear. |
| env.SaveBuffer("c/c.go") |
| env.Await( |
| EmptyDiagnostics("c/c.go"), |
| ) |
| }) |
| } |
| |
| const noMod = ` |
| -- main.go -- |
| package main |
| |
| import "mod.com/bob" |
| |
| func main() { |
| bob.Hello() |
| } |
| -- bob/bob.go -- |
| package bob |
| |
| func Hello() { |
| var x int |
| } |
| ` |
| |
| // TestNoMod confirms that gopls continues to work when a user adds a go.mod |
| // file to their workspace. |
| func TestNoMod(t *testing.T) { |
| t.Run("manual", func(t *testing.T) { |
| runner.Run(t, noMod, func(env *Env) { |
| env.Await( |
| env.DiagnosticAtRegexp("main.go", `"mod.com/bob"`), |
| ) |
| env.CreateBuffer("go.mod", `module mod.com |
| |
| go 1.12 |
| `) |
| env.SaveBuffer("go.mod") |
| env.Await( |
| EmptyDiagnostics("main.go"), |
| env.DiagnosticAtRegexp("bob/bob.go", "x"), |
| ) |
| }) |
| }) |
| t.Run("initialized", func(t *testing.T) { |
| runner.Run(t, noMod, func(env *Env) { |
| env.Await( |
| env.DiagnosticAtRegexp("main.go", `"mod.com/bob"`), |
| ) |
| if err := env.W.RunGoCommand(env.Ctx, "mod", "init", "mod.com"); err != nil { |
| t.Fatal(err) |
| } |
| env.Await( |
| EmptyDiagnostics("main.go"), |
| env.DiagnosticAtRegexp("bob/bob.go", "x"), |
| ) |
| }) |
| }) |
| |
| } |