2020-02-02 10:53:30 -07:00
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// Copyright 2020 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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package fake
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import (
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"context"
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"io/ioutil"
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"os"
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"sort"
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"testing"
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"time"
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"golang.org/x/tools/internal/lsp/protocol"
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)
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const data = `
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-- go.mod --
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go 1.12
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-- nested/README.md --
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Hello World!
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`
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func newWorkdir(t *testing.T) (*Workdir, <-chan []FileEvent, func()) {
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t.Helper()
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tmpdir, err := ioutil.TempDir("", "goplstest-workdir-")
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if err != nil {
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t.Fatal(err)
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}
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wd, err := NewWorkdir(tmpdir, data)
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if err != nil {
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t.Fatal(err)
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}
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cleanup := func() {
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if err := os.RemoveAll(tmpdir); err != nil {
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t.Error(err)
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}
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}
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fileEvents := make(chan []FileEvent)
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watch := func(_ context.Context, events []FileEvent) {
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fileEvents <- events
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}
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wd.AddWatcher(watch)
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return wd, fileEvents, cleanup
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}
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func TestWorkdir_ReadFile(t *testing.T) {
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wd, _, cleanup := newWorkdir(t)
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defer cleanup()
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got, err := wd.ReadFile("nested/README.md")
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if err != nil {
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t.Fatal(err)
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}
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want := "Hello World!\n"
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if got != want {
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t.Errorf("reading workdir file, got %q, want %q", got, want)
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}
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}
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func TestWorkdir_WriteFile(t *testing.T) {
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wd, events, cleanup := newWorkdir(t)
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defer cleanup()
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ctx := context.Background()
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tests := []struct {
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path string
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wantType protocol.FileChangeType
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}{
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{"data.txt", protocol.Created},
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{"nested/README.md", protocol.Changed},
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}
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for _, test := range tests {
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if err := wd.WriteFile(ctx, test.path, "42"); err != nil {
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t.Fatal(err)
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}
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es := <-events
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if got := len(es); got != 1 {
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t.Fatalf("len(events) = %d, want 1", got)
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}
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if es[0].Path != test.path {
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t.Errorf("event.Path = %q, want %q", es[0].Path, test.path)
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}
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if es[0].ProtocolEvent.Type != test.wantType {
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t.Errorf("event type = %v, want %v", es[0].ProtocolEvent.Type, test.wantType)
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}
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got, err := wd.ReadFile(test.path)
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if err != nil {
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t.Fatal(err)
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}
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want := "42"
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if got != want {
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t.Errorf("ws.ReadFile(%q) = %q, want %q", test.path, got, want)
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}
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}
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}
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func TestWorkdir_ListFiles(t *testing.T) {
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wd, _, cleanup := newWorkdir(t)
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defer cleanup()
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checkFiles := func(dir string, want []string) {
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files, err := wd.ListFiles(dir)
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if err != nil {
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t.Fatal(err)
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}
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sort.Strings(want)
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var got []string
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for p := range files {
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got = append(got, p)
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}
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sort.Strings(got)
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if len(got) != len(want) {
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t.Fatalf("ListFiles(): len = %d, want %d; got=%v; want=%v", len(got), len(want), got, want)
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}
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for i, f := range got {
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if f != want[i] {
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t.Errorf("ListFiles()[%d] = %s, want %s", i, f, want[i])
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}
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}
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}
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checkFiles(".", []string{"go.mod", "nested/README.md"})
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checkFiles("nested", []string{"nested/README.md"})
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}
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func TestWorkdir_CheckForFileChanges(t *testing.T) {
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t.Skip("broken on darwin-amd64-10_12")
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wd, events, cleanup := newWorkdir(t)
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defer cleanup()
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ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
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defer cancel()
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checkChange := func(path string, typ protocol.FileChangeType) {
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if err := wd.CheckForFileChanges(ctx); err != nil {
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t.Fatal(err)
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}
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var gotEvt FileEvent
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select {
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case <-ctx.Done():
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t.Fatal(ctx.Err())
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case ev := <-events:
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gotEvt = ev[0]
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}
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// Only check relative path and Type
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if gotEvt.Path != path || gotEvt.ProtocolEvent.Type != typ {
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t.Errorf("file events: got %v, want {Path: %s, Type: %v}", gotEvt, path, typ)
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}
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}
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// Sleep some positive amount of time to ensure a distinct mtime.
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time.Sleep(100 * time.Millisecond)
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if err := wd.writeFileData("go.mod", "module foo.test\n"); err != nil {
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t.Fatal(err)
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}
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checkChange("go.mod", protocol.Changed)
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if err := wd.writeFileData("newFile", "something"); err != nil {
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t.Fatal(err)
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}
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checkChange("newFile", protocol.Created)
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fp := wd.filePath("newFile")
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if err := os.Remove(fp); err != nil {
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t.Fatal(err)
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}
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checkChange("newFile", protocol.Deleted)
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}
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func TestSplitModuleVersionPath(t *testing.T) {
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tests := []struct {
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path string
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wantModule, wantVersion, wantSuffix string
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}{
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{"foo.com@v1.2.3/bar", "foo.com", "v1.2.3", "bar"},
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{"foo.com/module@v1.2.3/bar", "foo.com/module", "v1.2.3", "bar"},
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{"foo.com@v1.2.3", "foo.com", "v1.2.3", ""},
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{"std@v1.14.0", "std", "v1.14.0", ""},
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{"another/module/path", "another/module/path", "", ""},
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}
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for _, test := range tests {
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module, version, suffix := splitModuleVersionPath(test.path)
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if module != test.wantModule || version != test.wantVersion || suffix != test.wantSuffix {
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t.Errorf("splitModuleVersionPath(%q) =\n\t(%q, %q, %q)\nwant\n\t(%q, %q, %q)",
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test.path, module, version, suffix, test.wantModule, test.wantVersion, test.wantSuffix)
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}
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}
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}
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