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// Copyright 2021 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.
//go:build go1.18
// +build go1.18
package completion
import (
"testing"
. "golang.org/x/tools/internal/lsp/regtest"
)
// test generic receivers
func TestGenericReceiver(t *testing.T) {
const files = `
-- go.mod --
module mod.com
go 1.18
-- main.go --
package main
type SyncMap[K any, V comparable] struct {}
func (s *SyncMap[K,V]) f() {}
type XX[T any] struct {}
type UU[T any] struct {}
func (s SyncMap[XX,string]) g(v UU) {}
`
tests := []struct {
pat string
want []string
}{
{"s .Syn", []string{"SyncMap[K, V]"}},
{"Map.X", []string{}}, // This is probably wrong, Maybe "XX"?
{"v U", []string{"UU", "uint", "uint16", "uint32", "uint64", "uint8", "uintptr"}}, // not U[T]
}
Run(t, files, func(t *testing.T, env *Env) {
env.OpenFile("main.go")
env.Await(env.DoneWithOpen())
for _, tst := range tests {
pos := env.RegexpSearch("main.go", tst.pat)
pos.Column += len(tst.pat)
completions := env.Completion("main.go", pos)
result := compareCompletionResults(tst.want, completions.Items)
if result != "" {
t.Errorf("%s: wanted %v", result, tst.want)
for i, g := range completions.Items {
t.Errorf("got %d %s %s", i, g.Label, g.Detail)
}
}
}
})
}
func TestFuzzFunc(t *testing.T) {
// use the example from the package documentation
modfile := `
-- go.mod --
module mod.com
go 1.18
`
part0 := `package foo
import "testing"
func FuzzNone(f *testing.F) {
f.Add(12) // better not find this f.Add
}
func FuzzHex(f *testing.F) {
for _, seed := range [][]byte{{}, {0}, {9}, {0xa}, {0xf}, {1, 2, 3, 4}} {
f.Ad`
part1 := `d(seed)
}
f.F`
part2 := `uzz(func(t *testing.T, in []byte) {
enc := hex.EncodeToString(in)
out, err := hex.DecodeString(enc)
if err != nil {
f.Failed()
}
if !bytes.Equal(in, out) {
t.Fatalf("%v: round trip: %v, %s", in, out, f.Name())
}
})
}
`
data := modfile + `-- a_test.go --
` + part0 + `
-- b_test.go --
` + part0 + part1 + `
-- c_test.go --
` + part0 + part1 + part2
tests := []struct {
file string
pat string
offset int // from the beginning of pat to what the user just typed
want []string
}{
{"a_test.go", "f.Ad", 3, []string{"Add"}},
{"c_test.go", " f.F", 4, []string{"Failed"}},
{"c_test.go", "f.N", 3, []string{"Name"}},
{"b_test.go", "f.F", 3, []string{"Fuzz(func(t *testing.T, a []byte)", "Fail", "FailNow",
"Failed", "Fatal", "Fatalf"}},
}
Run(t, data, func(t *testing.T, env *Env) {
for _, test := range tests {
env.OpenFile(test.file)
env.Await(env.DoneWithOpen())
pos := env.RegexpSearch(test.file, test.pat)
pos.Column += test.offset // character user just typed? will type?
completions := env.Completion(test.file, pos)
result := compareCompletionResults(test.want, completions.Items)
if result != "" {
t.Errorf("pat %q %q", test.pat, result)
for i, it := range completions.Items {
t.Errorf("%d got %q %q", i, it.Label, it.Detail)
}
}
}
})
}
|
