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