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// 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 fake
import (
"context"
"io/ioutil"
"os"
"sort"
"testing"
"time"
"golang.org/x/tools/internal/lsp/protocol"
)
const data = `
-- go.mod --
go 1.12
-- nested/README.md --
Hello World!
`
func newWorkdir(t *testing.T) (*Workdir, <-chan []FileEvent, func()) {
t.Helper()
tmpdir, err := ioutil.TempDir("", "goplstest-workdir-")
if err != nil {
t.Fatal(err)
}
wd := NewWorkdir(tmpdir)
if err := wd.writeInitialFiles(UnpackTxt(data)); err != nil {
t.Fatal(err)
}
cleanup := func() {
if err := os.RemoveAll(tmpdir); err != nil {
t.Error(err)
}
}
fileEvents := make(chan []FileEvent)
watch := func(_ context.Context, events []FileEvent) {
go func() {
fileEvents <- events
}()
}
wd.AddWatcher(watch)
return wd, fileEvents, cleanup
}
func TestWorkdir_ReadFile(t *testing.T) {
wd, _, cleanup := newWorkdir(t)
defer cleanup()
got, err := wd.ReadFile("nested/README.md")
if err != nil {
t.Fatal(err)
}
want := "Hello World!\n"
if got != want {
t.Errorf("reading workdir file, got %q, want %q", got, want)
}
}
func TestWorkdir_WriteFile(t *testing.T) {
wd, events, cleanup := newWorkdir(t)
defer cleanup()
ctx := context.Background()
tests := []struct {
path string
wantType protocol.FileChangeType
}{
{"data.txt", protocol.Created},
{"nested/README.md", protocol.Changed},
}
for _, test := range tests {
if err := wd.WriteFile(ctx, test.path, "42"); err != nil {
t.Fatal(err)
}
es := <-events
if got := len(es); got != 1 {
t.Fatalf("len(events) = %d, want 1", got)
}
if es[0].Path != test.path {
t.Errorf("event.Path = %q, want %q", es[0].Path, test.path)
}
if es[0].ProtocolEvent.Type != test.wantType {
t.Errorf("event type = %v, want %v", es[0].ProtocolEvent.Type, test.wantType)
}
got, err := wd.ReadFile(test.path)
if err != nil {
t.Fatal(err)
}
want := "42"
if got != want {
t.Errorf("ws.ReadFile(%q) = %q, want %q", test.path, got, want)
}
}
}
func TestWorkdir_ListFiles(t *testing.T) {
wd, _, cleanup := newWorkdir(t)
defer cleanup()
checkFiles := func(dir string, want []string) {
files, err := wd.listFiles(dir)
if err != nil {
t.Fatal(err)
}
sort.Strings(want)
var got []string
for p := range files {
got = append(got, p)
}
sort.Strings(got)
if len(got) != len(want) {
t.Fatalf("ListFiles(): len = %d, want %d; got=%v; want=%v", len(got), len(want), got, want)
}
for i, f := range got {
if f != want[i] {
t.Errorf("ListFiles()[%d] = %s, want %s", i, f, want[i])
}
}
}
checkFiles(".", []string{"go.mod", "nested/README.md"})
checkFiles("nested", []string{"nested/README.md"})
}
func TestWorkdir_CheckForFileChanges(t *testing.T) {
t.Skip("broken on darwin-amd64-10_12")
wd, events, cleanup := newWorkdir(t)
defer cleanup()
ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
defer cancel()
checkChange := func(path string, typ protocol.FileChangeType) {
if err := wd.CheckForFileChanges(ctx); err != nil {
t.Fatal(err)
}
var gotEvt FileEvent
select {
case <-ctx.Done():
t.Fatal(ctx.Err())
case ev := <-events:
gotEvt = ev[0]
}
// Only check relative path and Type
if gotEvt.Path != path || gotEvt.ProtocolEvent.Type != typ {
t.Errorf("file events: got %v, want {Path: %s, Type: %v}", gotEvt, path, typ)
}
}
// Sleep some positive amount of time to ensure a distinct mtime.
time.Sleep(100 * time.Millisecond)
if err := WriteFileData("go.mod", []byte("module foo.test\n"), wd.RelativeTo); err != nil {
t.Fatal(err)
}
checkChange("go.mod", protocol.Changed)
if err := WriteFileData("newFile", []byte("something"), wd.RelativeTo); err != nil {
t.Fatal(err)
}
checkChange("newFile", protocol.Created)
fp := wd.AbsPath("newFile")
if err := os.Remove(fp); err != nil {
t.Fatal(err)
}
checkChange("newFile", protocol.Deleted)
}
func TestSplitModuleVersionPath(t *testing.T) {
tests := []struct {
path string
wantModule, wantVersion, wantSuffix string
}{
{"foo.com@v1.2.3/bar", "foo.com", "v1.2.3", "bar"},
{"foo.com/module@v1.2.3/bar", "foo.com/module", "v1.2.3", "bar"},
{"foo.com@v1.2.3", "foo.com", "v1.2.3", ""},
{"std@v1.14.0", "std", "v1.14.0", ""},
{"another/module/path", "another/module/path", "", ""},
}
for _, test := range tests {
module, version, suffix := splitModuleVersionPath(test.path)
if module != test.wantModule || version != test.wantVersion || suffix != test.wantSuffix {
t.Errorf("splitModuleVersionPath(%q) =\n\t(%q, %q, %q)\nwant\n\t(%q, %q, %q)",
test.path, module, version, suffix, test.wantModule, test.wantVersion, test.wantSuffix)
}
}
}
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