| // 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 ( |
| "path" |
| "strings" |
| "testing" |
| |
| "golang.org/x/tools/internal/lsp/tests" |
| ) |
| |
| const internalDefinition = ` |
| -- go.mod -- |
| module mod.com |
| |
| go 1.12 |
| -- main.go -- |
| package main |
| |
| import "fmt" |
| |
| func main() { |
| fmt.Println(message) |
| } |
| -- const.go -- |
| package main |
| |
| const message = "Hello World." |
| ` |
| |
| func TestGoToInternalDefinition(t *testing.T) { |
| runner.Run(t, internalDefinition, func(t *testing.T, env *Env) { |
| env.OpenFile("main.go") |
| name, pos := env.GoToDefinition("main.go", env.RegexpSearch("main.go", "message")) |
| if want := "const.go"; name != want { |
| t.Errorf("GoToDefinition: got file %q, want %q", name, want) |
| } |
| if want := env.RegexpSearch("const.go", "message"); pos != want { |
| t.Errorf("GoToDefinition: got position %v, want %v", pos, want) |
| } |
| }) |
| } |
| |
| const stdlibDefinition = ` |
| -- go.mod -- |
| module mod.com |
| |
| -- main.go -- |
| package main |
| |
| import "fmt" |
| |
| func main() { |
| fmt.Printf() |
| }` |
| |
| func TestGoToStdlibDefinition_Issue37045(t *testing.T) { |
| runner.Run(t, stdlibDefinition, func(t *testing.T, env *Env) { |
| env.OpenFile("main.go") |
| name, pos := env.GoToDefinition("main.go", env.RegexpSearch("main.go", `fmt.(Printf)`)) |
| if got, want := path.Base(name), "print.go"; got != want { |
| t.Errorf("GoToDefinition: got file %q, want %q", name, want) |
| } |
| |
| // Test that we can jump to definition from outside our workspace. |
| // See golang.org/issues/37045. |
| newName, newPos := env.GoToDefinition(name, pos) |
| if newName != name { |
| t.Errorf("GoToDefinition is not idempotent: got %q, want %q", newName, name) |
| } |
| if newPos != pos { |
| t.Errorf("GoToDefinition is not idempotent: got %v, want %v", newPos, pos) |
| } |
| }) |
| } |
| |
| func TestUnexportedStdlib_Issue40809(t *testing.T) { |
| runner.Run(t, stdlibDefinition, func(t *testing.T, env *Env) { |
| env.OpenFile("main.go") |
| name, _ := env.GoToDefinition("main.go", env.RegexpSearch("main.go", `fmt.(Printf)`)) |
| env.OpenFile(name) |
| |
| pos := env.RegexpSearch(name, `:=\s*(newPrinter)\(\)`) |
| |
| // Check that we can find references on a reference |
| refs := env.References(name, pos) |
| if len(refs) < 5 { |
| t.Errorf("expected 5+ references to newPrinter, found: %#v", refs) |
| } |
| |
| name, pos = env.GoToDefinition(name, pos) |
| content, _ := env.Hover(name, pos) |
| if !strings.Contains(content.Value, "newPrinter") { |
| t.Fatal("definition of newPrinter went to the incorrect place") |
| } |
| // And on the definition too. |
| refs = env.References(name, pos) |
| if len(refs) < 5 { |
| t.Errorf("expected 5+ references to newPrinter, found: %#v", refs) |
| } |
| }) |
| } |
| |
| // Test the hover on an error's Error function. |
| // This can't be done via the marker tests because Error is a builtin. |
| func TestHoverOnError(t *testing.T) { |
| const mod = ` |
| -- go.mod -- |
| module mod.com |
| -- main.go -- |
| package main |
| |
| func main() { |
| var err error |
| err.Error() |
| }` |
| run(t, mod, func(t *testing.T, env *Env) { |
| env.OpenFile("main.go") |
| content, _ := env.Hover("main.go", env.RegexpSearch("main.go", "Error")) |
| if content == nil { |
| t.Fatalf("nil hover content for Error") |
| } |
| want := "```go\nfunc (error).Error() string\n```" |
| if content.Value != want { |
| t.Fatalf("hover failed:\n%s", tests.Diff(want, content.Value)) |
| } |
| }) |
| } |