--- /dev/null
+// 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(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) {
+ 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)
+ }
+ }
+}