blob: 9d2ffd8c17f872b1eb23ebe99242676f85d07383 [file] [log] [blame] [edit]
// 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))
}
})
}