| 1 | package persistentshell |
| 2 | |
| 3 | import ( |
| 4 | "context" |
| 5 | "fmt" |
| 6 | "os" |
| 7 | "path/filepath" |
| 8 | "runtime" |
| 9 | "strings" |
| 10 | "testing" |
| 11 | "time" |
| 12 | |
| 13 | "reasonix/internal/sandbox" |
| 14 | ) |
| 15 | |
| 16 | // Run the Windows byte-stream transport on every host with Bash installed. |
| 17 | // On Windows use the production dispatcher, so accidentally restoring ConPTY |
| 18 | // cannot pass this regression merely because startPipe still works in isolation. |
| 19 | func newPipeTestManager(t *testing.T) (*Manager, Request) { |
| 20 | t.Helper() |
| 21 | sh, ok := sandbox.ResolveExplicitBash("") |
| 22 | if !ok { |
| 23 | t.Skip("native Bash is required for the pipe transport regression") |
| 24 | } |
| 25 | dir := t.TempDir() |
| 26 | env := make([]string, 0, len(os.Environ())+2) |
| 27 | for _, item := range os.Environ() { |
| 28 | key, _, _ := strings.Cut(item, "=") |
| 29 | if !strings.EqualFold(key, "LC_ALL") && !strings.EqualFold(key, "LANG") && !strings.EqualFold(key, "BASH_ENV") { |
| 30 | env = append(env, item) |
| 31 | } |
| 32 | } |
| 33 | env = append(env, "LC_ALL=C", "TERM=dumb") |
| 34 | req := Request{Shell: sh, Argv: interactiveArgvForOS(sh, "windows"), Dir: dir, Env: env, Timeout: 5 * time.Second} |
| 35 | var s *session |
| 36 | var err error |
| 37 | if runtime.GOOS == "windows" { |
| 38 | req.Argv = InteractiveArgv(sh) |
| 39 | s, err = startSession(req, fingerprint(req)) |
| 40 | } else { |
| 41 | s, err = startPOSIXSession(req, fingerprint(req), startPipe) |
| 42 | } |
| 43 | if err != nil { |
| 44 | t.Fatal(err) |
| 45 | } |
| 46 | m := testManager(t) |
| 47 | m.live = s |
| 48 | if _, ok := s.conn.(*pipeProcess); !ok { |
| 49 | t.Fatalf("Windows Bash must use pipes, got %T", s.conn) |
| 50 | } |
| 51 | return m, req |
| 52 | } |
| 53 | |
| 54 | func TestBashPipeUnicodeCompletionAndState(t *testing.T) { |
| 55 | m, req := newPipeTestManager(t) |
| 56 | filename := "中文😀 '文件.txt" |
| 57 | if err := os.WriteFile(filepath.Join(req.Dir, filename), []byte("内容😀"), 0o600); err != nil { |
| 58 | t.Fatal(err) |
| 59 | } |
| 60 | if err := os.Mkdir(filepath.Join(req.Dir, "sub"), 0o700); err != nil { |
| 61 | t.Fatal(err) |
| 62 | } |
| 63 | run := func(command, want string) { |
| 64 | t.Helper() |
| 65 | req.Command = command |
| 66 | res := m.Run(t.Context(), req) |
| 67 | if res.Err != nil || !res.ExitCodeKnown || res.ExitCode != 0 || res.Reset || res.Output != want { |
| 68 | t.Fatalf("command=%q result=%+v, want output=%q", command, res, want) |
| 69 | } |
| 70 | } |
| 71 | // Both the interpreter and native utilities must see pipes, never a console. |
| 72 | run("test ! -t 0 && test ! -t 1 && test ! -t 2", "") |
| 73 | run("ls -a", ".\n..\nsub\n"+filename+"\n") |
| 74 | run("cat "+posixQuote(filename), "内容😀") |
| 75 | // Exercise output well beyond the former 80-column screen and read boundary. |
| 76 | long := strings.Repeat("中文😀", 2000) |
| 77 | run("printf '%s' "+posixQuote(long), long) |
| 78 | run("printf '前'; printf '错误' >&2; printf '后'", "前错误后") |
| 79 | run("cd sub; export REASONIX_PIPE_STATE='变量😀'; rx_pipe_fn() { printf '%s' \"$REASONIX_PIPE_STATE\"; }", "") |
| 80 | run("printf '%s:' \"${PWD##*/}\"; rx_pipe_fn", "sub:变量😀") |
| 81 | req.Command = "printf '失败中文' >&2; false" |
| 82 | failed := m.Run(t.Context(), req) |
| 83 | if failed.Err == nil || !failed.ExitCodeKnown || failed.ExitCode != 1 || failed.Reset || failed.Output != "失败中文" { |
| 84 | t.Fatalf("non-zero completion was lost: %+v", failed) |
| 85 | } |
| 86 | run("rx_pipe_fn", "变量😀") |
| 87 | // Commands sharing this manager are serialized; output must stay with its call. |
| 88 | results := make(chan Result, 4) |
| 89 | for i := range 4 { |
| 90 | go func() { |
| 91 | r := req |
| 92 | r.Command = fmt.Sprintf("printf '调用%d中文'", i) |
| 93 | results <- m.Run(context.Background(), r) |
| 94 | }() |
| 95 | } |
| 96 | seen := map[string]bool{} |
| 97 | for range 4 { |
| 98 | res := <-results |
| 99 | if res.Err != nil || !res.ExitCodeKnown || res.ExitCode != 0 || seen[res.Output] { |
| 100 | t.Fatalf("mixed concurrent output: %+v", res) |
| 101 | } |
| 102 | seen[res.Output] = true |
| 103 | } |
| 104 | for i := range 4 { |
| 105 | if !seen[fmt.Sprintf("调用%d中文", i)] { |
| 106 | t.Fatalf("missing call %d: %v", i, seen) |
| 107 | } |
| 108 | } |
| 109 | } |
| 110 | |
| 111 | func TestBashPipeCancellationReapsShell(t *testing.T) { |
| 112 | m, req := newPipeTestManager(t) |
| 113 | p := m.live.conn.(*pipeProcess) |
| 114 | ctx, cancel := context.WithCancel(t.Context()) |
| 115 | defer cancel() |
| 116 | req.Command = "printf 'started\\n%0128d\\n' 0; sleep 30" |
| 117 | req.Progress = &cancelOnStarted{cancel: cancel} |
| 118 | res := m.Run(ctx, req) |
| 119 | if !res.Canceled || !res.Reset || m.live != nil { |
| 120 | t.Fatalf("cancel did not reset pipe session: %+v", res) |
| 121 | } |
| 122 | if p.cmd.ProcessState == nil || p.cmd.ProcessState.Success() { |
| 123 | t.Fatal("cancel did not kill and reap shell") |
| 124 | } |
| 125 | if _, err := p.Write([]byte("echo stale\n")); err == nil { |
| 126 | t.Fatal("retired pipe still accepts commands") |
| 127 | } |
| 128 | } |
| 129 | |
| 130 | func TestBashPipeTimeoutResetsSession(t *testing.T) { |
| 131 | m, req := newPipeTestManager(t) |
| 132 | req.Command = "sleep 30" |
| 133 | req.Timeout = 100 * time.Millisecond |
| 134 | res := m.Run(t.Context(), req) |
| 135 | if !res.TimedOut || !res.Reset || res.ExitCodeKnown || m.live != nil { |
| 136 | t.Fatalf("timeout must retire the session without claiming completion: %+v", res) |
| 137 | } |
| 138 | } |
| 139 |