--- /dev/null
+// 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 misc
+
+import (
+ "strings"
+ "testing"
+
+ . "golang.org/x/tools/gopls/internal/regtest"
+
+ "golang.org/x/tools/internal/lsp/tests"
+)
+
+const unformattedProgram = `
+-- main.go --
+package main
+import "fmt"
+func main( ) {
+ fmt.Println("Hello World.")
+}
+-- main.go.golden --
+package main
+
+import "fmt"
+
+func main() {
+ fmt.Println("Hello World.")
+}
+`
+
+func TestFormatting(t *testing.T) {
+ Run(t, unformattedProgram, func(t *testing.T, env *Env) {
+ env.OpenFile("main.go")
+ env.FormatBuffer("main.go")
+ got := env.Editor.BufferText("main.go")
+ want := env.ReadWorkspaceFile("main.go.golden")
+ if got != want {
+ t.Errorf("unexpected formatting result:\n%s", tests.Diff(t, want, got))
+ }
+ })
+}
+
+// Tests golang/go#36824.
+func TestFormattingOneLine36824(t *testing.T) {
+ const onelineProgram = `
+-- a.go --
+package main; func f() {}
+
+-- a.go.formatted --
+package main
+
+func f() {}
+`
+ Run(t, onelineProgram, func(t *testing.T, env *Env) {
+ env.OpenFile("a.go")
+ env.FormatBuffer("a.go")
+ got := env.Editor.BufferText("a.go")
+ want := env.ReadWorkspaceFile("a.go.formatted")
+ if got != want {
+ t.Errorf("unexpected formatting result:\n%s", tests.Diff(t, want, got))
+ }
+ })
+}
+
+// Tests golang/go#36824.
+func TestFormattingOneLineImports36824(t *testing.T) {
+ const onelineProgramA = `
+-- a.go --
+package x; func f() {fmt.Println()}
+
+-- a.go.imported --
+package x
+
+import "fmt"
+
+func f() { fmt.Println() }
+`
+ Run(t, onelineProgramA, func(t *testing.T, env *Env) {
+ env.OpenFile("a.go")
+ env.OrganizeImports("a.go")
+ got := env.Editor.BufferText("a.go")
+ want := env.ReadWorkspaceFile("a.go.imported")
+ if got != want {
+ t.Errorf("unexpected formatting result:\n%s", tests.Diff(t, want, got))
+ }
+ })
+}
+
+func TestFormattingOneLineRmImports36824(t *testing.T) {
+ const onelineProgramB = `
+-- a.go --
+package x; import "os"; func f() {}
+
+-- a.go.imported --
+package x
+
+func f() {}
+`
+ Run(t, onelineProgramB, func(t *testing.T, env *Env) {
+ env.OpenFile("a.go")
+ env.OrganizeImports("a.go")
+ got := env.Editor.BufferText("a.go")
+ want := env.ReadWorkspaceFile("a.go.imported")
+ if got != want {
+ t.Errorf("unexpected formatting result:\n%s", tests.Diff(t, want, got))
+ }
+ })
+}
+
+const disorganizedProgram = `
+-- main.go --
+package main
+
+import (
+ "fmt"
+ "errors"
+)
+func main( ) {
+ fmt.Println(errors.New("bad"))
+}
+-- main.go.organized --
+package main
+
+import (
+ "errors"
+ "fmt"
+)
+func main( ) {
+ fmt.Println(errors.New("bad"))
+}
+-- main.go.formatted --
+package main
+
+import (
+ "errors"
+ "fmt"
+)
+
+func main() {
+ fmt.Println(errors.New("bad"))
+}
+`
+
+func TestOrganizeImports(t *testing.T) {
+ Run(t, disorganizedProgram, func(t *testing.T, env *Env) {
+ env.OpenFile("main.go")
+ env.OrganizeImports("main.go")
+ got := env.Editor.BufferText("main.go")
+ want := env.ReadWorkspaceFile("main.go.organized")
+ if got != want {
+ t.Errorf("unexpected formatting result:\n%s", tests.Diff(t, want, got))
+ }
+ })
+}
+
+func TestFormattingOnSave(t *testing.T) {
+ Run(t, disorganizedProgram, func(t *testing.T, env *Env) {
+ env.OpenFile("main.go")
+ env.SaveBuffer("main.go")
+ got := env.Editor.BufferText("main.go")
+ want := env.ReadWorkspaceFile("main.go.formatted")
+ if got != want {
+ t.Errorf("unexpected formatting result:\n%s", tests.Diff(t, want, got))
+ }
+ })
+}
+
+// Tests various possibilities for comments in files with CRLF line endings.
+// Import organization in these files has historically been a source of bugs.
+func TestCRLFLineEndings(t *testing.T) {
+ for _, tt := range []struct {
+ issue, want string
+ }{
+ {
+ issue: "41057",
+ want: `package main
+
+/*
+Hi description
+*/
+func Hi() {
+}
+`,
+ },
+ {
+ issue: "42646",
+ want: `package main
+
+import (
+ "fmt"
+)
+
+/*
+func upload(c echo.Context) error {
+ if err := r.ParseForm(); err != nil {
+ fmt.Fprintf(w, "ParseForm() err: %v", err)
+ return
+ }
+ fmt.Fprintf(w, "POST request successful")
+ path_ver := r.FormValue("path_ver")
+ ukclin_ver := r.FormValue("ukclin_ver")
+
+ fmt.Fprintf(w, "Name = %s\n", path_ver)
+ fmt.Fprintf(w, "Address = %s\n", ukclin_ver)
+}
+*/
+
+func main() {
+ const server_port = 8080
+ fmt.Printf("port: %d\n", server_port)
+}
+`,
+ },
+ {
+ issue: "42923",
+ want: `package main
+
+// Line 1.
+// aa
+type Tree struct {
+ arr []string
+}
+`,
+ },
+ } {
+ t.Run(tt.issue, func(t *testing.T) {
+ Run(t, "-- main.go --", func(t *testing.T, env *Env) {
+ crlf := strings.ReplaceAll(tt.want, "\n", "\r\n")
+ env.CreateBuffer("main.go", crlf)
+ env.Await(env.DoneWithOpen())
+ env.OrganizeImports("main.go")
+ got := env.Editor.BufferText("main.go")
+ got = strings.ReplaceAll(got, "\r\n", "\n") // convert everything to LF for simplicity
+ if tt.want != got {
+ t.Errorf("unexpected content after save:\n%s", tests.Diff(t, tt.want, got))
+ }
+ })
+ })
+ }
+}
projects / dotfiles / .git / blobdiff