feat(run,ui): make the lane console usable — terminal focus, live-exit recovery, auto permission mode, model aliases

Terminal (issue #33):
- `convertEol` is gone from xterm. It rewrote every bare LF as CR+LF, so a
  tmux pane that scrolled (tmux emits a bare LF and keeps drawing at the
  column it was on) had the rest of that draw land at column 0, stamping a
  line's first characters into the left margin of the rows below — the torn
  left edge that only showed up once content scrolled.
- The attach carries the client's real size (`?cols=&rows=`, `sizeFromQuery`
  in `server/websocket.js`, bounded because it reaches a TIOCSWINSZ ioctl).
  `attach()` spawned `tmux attach-session` at a hardcoded 80x24 on every
  attach, and tmux sizes the window to the newest client, so `claude` redrew
  its whole UI at 80 columns until the first `resize` message landed.
- The terminal takes the keyboard on mount, so typing reaches tmux without
  clicking the pane first.
- A pane that ends (double Ctrl+C, `exit`, a crash) reports itself through a
  new `onExit` prop and `LaneConsolePane` runs `newRun()`, so the console
  returns to the setup form instead of leaving a dead pane behind a
  "New run" button.

Pane environment:
- `server/lib/desktop-env.js` forwards the graphical session's DISPLAY /
  WAYLAND_DISPLAY / XAUTHORITY / XDG_RUNTIME_DIR (from
  `systemctl --user show-environment`, this process's own values winning)
  into the pane. The server normally runs as a systemd user service with none
  of them, so `claude` there could not read the clipboard and answered "no
  image found in clipboard" on every image paste.

Run setup:
- `auto` is a permission mode and is now the default everywhere — allowlists,
  the `--permission-mode` fallback, the select, and the pane's initial state.
- The model picker sends the CLI's aliases (`fable`/`opus`/`sonnet`/`haiku`)
  instead of pinned ids. `claude --model` resolves an alias to the latest
  model itself, so a release like Fable 5.1 needs no edit here; pricing is
  unaffected because it keys off the resolved id the transcript reports.
- **Create/update readme file** moved from the Add-lane modal into the lane's
  Tools menu: creating a lane and writing its docs are separate decisions,
  and the second is worth re-running long after the first.
- The Workspace's no-lane state is a real banner; the lane strip (add tile
  included) renders only once a lane exists.

Refs #32, #33.

Tests: npm run test:server (1828 pass), client vitest (558 pass).
This commit is contained in:
2026-09-21 17:03:27 +07:00
parent 64017c6ca5
commit f77049c238
30 changed files with 579 additions and 204 deletions
+6 -60
View File
@@ -14,8 +14,6 @@
* the route answers before the actual `git worktree add` runs, so this
* component polls `GET /api/lanes/:id` until that finishes before running the
* auto-setup calls against a cwd that must actually exist on disk first.
* An optional "Create/update readme file" checkbox starts the lane's terminal
* run right after creation with `/sg-all:sg-md-writing` as its first message.
* @author Nguyễn Ngọc Trí Vĩ <vinnt@smartgift.vn>
*/
@@ -96,7 +94,6 @@ export function AddLaneModal({
const [branches, setBranches] = useState<string[] | null>(null);
const [base, setBase] = useState("");
const [pipeline, setPipeline] = useState("default");
const [writeDocs, setWriteDocs] = useState(false);
// "native" is the built-in profile, not a null state — see server/lib/ai-routers.js.
const [router, setRouter] = useState("native");
const [routers, setRouters] = useState<AiRouter[]>([]);
@@ -122,7 +119,6 @@ export function AddLaneModal({
setBranches(null);
setBase("");
setPipeline("default");
setWriteDocs(false);
setRouter("native");
setRoutersLoaded(false);
setTool("claude");
@@ -208,14 +204,6 @@ export function AddLaneModal({
return () => window.clearTimeout(timer);
}, [mode, sourceRepo, t]);
// The checkbox below runs the docs skill by opening the lane's own terminal
// run with the slash command as its first message — a skill only exists
// inside a CLI session, so there is nothing server-side to call instead.
// Claude-only: codex has no slash commands (same reason LaneConsolePane
// prefills prose for a codex lane).
const startDocsRun = (laneId: number, cwd: string) =>
api.run.start({ laneId, cwd, initialPrompt: "/sg-all:sg-md-writing" });
// Native is the built-in profile, so this is one call either way — there is
// no "no router" branch to keep in step with the real one.
const applyRouter = (laneId: number) => api.lanes.routerApply(laneId, router);
@@ -242,19 +230,14 @@ export function AddLaneModal({
// Worktree mode below already works this way.
onAdded(result.lane);
// Router first: a session that booted on the vendor's API would keep
// talking to it for its whole life.
const [routerOutcome, docsOutcome] = await Promise.allSettled([
applyRouter(result.lane.id),
writeDocs && tool === "claude"
? startDocsRun(result.lane.id, result.lane.cwd)
: Promise.resolve(null),
]);
const failed = [routerOutcome, docsOutcome].find((o) => o.status === "rejected");
if (failed && failed.status === "rejected") {
// A session that booted on the vendor's API would keep talking to it
// for its whole life, so the router is applied before anything runs.
try {
await applyRouter(result.lane.id);
} catch (routerErr) {
// The lane exists and is already listed — name what did not finish
// instead of closing on a half-set-up lane.
setError(failed.reason instanceof Error ? failed.reason.message : String(failed.reason));
setError(routerErr instanceof Error ? routerErr.message : String(routerErr));
setBusy(false);
return;
}
@@ -312,10 +295,6 @@ export function AddLaneModal({
const anyFailed = Object.values(outcome).includes("failed");
setSetupResult(outcome);
if (writeDocs && tool === "claude") {
await startDocsRun(result.lane.id, provisionedLane.cwd);
}
if (import.meta.env.DEV) {
console.info("[add-lane] auto-setup result:", {
profile:
@@ -555,39 +534,6 @@ export function AddLaneModal({
</p>
</fieldset>
{tool === "claude" && (
<label
// No tick box: the card itself lights up when selected, the same
// treatment LaneStripCard uses, which makes a second indicator of
// the same state redundant. The input stays and only goes visually
// hidden — it is still what a keyboard toggles and what a screen
// reader announces — so the card carries the focus ring for it.
className={`block cursor-pointer rounded-lg border p-3 shadow-sm transition-colors focus-within:ring-2 focus-within:ring-accent/50 ${
writeDocs
? "border-accent bg-accent/10"
: "border-border bg-surface-2 hover:border-border-light hover:bg-surface-3"
}`}
>
<input
type="checkbox"
// The wrapping label also holds the hint, so name the input
// itself — otherwise its accessible name is label + hint.
aria-label={t("addLaneWriteDocsLabel")}
checked={writeDocs}
onChange={(e) => setWriteDocs(e.target.checked)}
className="sr-only"
/>
<span
className={`block text-xs font-medium ${writeDocs ? "text-accent" : "text-fg-secondary"}`}
>
{t("addLaneWriteDocsLabel")}
</span>
<span className="mt-1 block text-[10px] text-fg-muted">
{t("addLaneWriteDocsHint")}
</span>
</label>
)}
{mode === "worktree" && branches && (
<div>
<label className="mb-1 block text-xs text-fg-secondary" htmlFor="add-lane-base">
+37 -6
View File
@@ -12,7 +12,8 @@
* second telling of it. The repo
* card also carries the lane's AI Router picker — the Add-lane modal is the
* only other place one is chosen, and a lane outlives its creation. The repo
* tooling dropdown (`LaneToolsMenu`, exported from this file) and the
* tooling dropdown (`LaneToolsMenu`, exported from this file — agents
* install / MCP sync / dev-sync check / create-update readme) and the
* remove-lane button live in Workspace's page header / pipeline-picker row
* instead of here, so they stay reachable and un-clipped regardless of this
* card's own scroll area.
@@ -307,7 +308,8 @@ export function since(sec: number | null): string {
}
/**
* Repo tooling (agents install / MCP sync / dev-sync check) for one lane,
* Repo tooling (agents install / MCP sync / dev-sync check, and the
* create/update-readme run, which moved here from the Add-lane modal) for one lane,
* collapsed into a single dropdown. Lives outside LaneCard so it can be
* placed in the Workspace page header, next to "Add lane" — it polls its
* own runtime state independently of LaneCard's, same pattern as the
@@ -316,14 +318,14 @@ export function since(sec: number | null): string {
export function LaneToolsMenu({ lane }: { lane: Lane }) {
const { t } = useTranslation(["lanes"]);
const [toolsMenuOpen, setToolsMenuOpen] = useState(false);
const [laneActionBusy, setLaneActionBusy] = useState<"agents" | "mcp" | "sync-check" | null>(
null
);
const [laneActionBusy, setLaneActionBusy] = useState<
"agents" | "mcp" | "sync-check" | "docs" | null
>(null);
const [laneActionResult, setLaneActionResult] = useState<string | null>(null);
const runtime = useLaneRuntime(lane.id, 0);
const runLaneAction = async (
which: "agents" | "mcp" | "sync-check",
which: "agents" | "mcp" | "sync-check" | "docs",
fn: () => Promise<string>
) => {
setLaneActionBusy(which);
@@ -343,6 +345,19 @@ export function LaneToolsMenu({ lane }: { lane: Lane }) {
return t("actions.agentsInstallResult", { files: result.installed.join(", ") });
});
// A skill only exists inside a CLI session, so there is nothing server-side
// to call: this opens the lane's own terminal run with the slash command as
// its first message. Claude-only — codex has no slash commands.
const handleWriteDocs = () =>
runLaneAction("docs", async () => {
await api.run.start({
laneId: lane.id,
cwd: lane.cwd,
initialPrompt: "/sg-all:sg-md-writing",
});
return t("actions.writeDocsResult");
});
const handleMcpSync = () =>
runLaneAction("mcp", async () => {
const result = await api.lanes.mcpSync(lane.id);
@@ -398,6 +413,22 @@ export function LaneToolsMenu({ lane }: { lane: Lane }) {
>
{t("actions.agentsInstall")}
</button>
{lane.tool !== "codex" && (
<button
type="button"
role="menuitem"
data-testid="lane-write-docs"
title={t("actions.writeDocsHint")}
onClick={(e) => {
e.stopPropagation();
setToolsMenuOpen(false);
void handleWriteDocs();
}}
className="block w-full px-3 py-1.5 text-left text-fg-secondary hover:bg-surface-2"
>
{t("actions.writeDocs")}
</button>
)}
<button
type="button"
role="menuitem"
@@ -134,15 +134,13 @@ beforeEach(() => {
.mockResolvedValue({ scaffolded: false, reason: "no detectable Node.js project" });
vi.mocked(api.lanes.agentsInstall).mockReset().mockResolvedValue({ installed: [] });
vi.mocked(api.lanes.mcpSync).mockReset().mockResolvedValue({ servers: [], profilesSeeded: [] });
vi.mocked(api.lanes.routerApply)
.mockReset()
.mockResolvedValue({
tool: "claude",
file: null,
restart_required: false,
run_id: null,
profile: "native",
});
vi.mocked(api.lanes.routerApply).mockReset().mockResolvedValue({
tool: "claude",
file: null,
restart_required: false,
run_id: null,
profile: "native",
});
// Only the built-in profile by default, so the router radio stays on Native
// and no test has to opt out of it.
vi.mocked(api.aiRouters.list)
@@ -452,37 +450,12 @@ describe("AddLaneModal — folder browse", () => {
});
describe("AddLaneModal — create/update readme", () => {
it("opens the new lane's terminal on the docs skill only when the box is ticked", async () => {
vi.mocked(api.run.start)
.mockReset()
.mockResolvedValue({} as never);
vi.mocked(api.lanes.ensure).mockResolvedValue({
lane: laneFixture({ status: "idle", cwd: "/Users/tester/projects/repo" }),
created: true,
});
it("no longer offers it here — it moved to the lane's Tools menu", async () => {
// Creating a lane and writing its docs are separate decisions, and the
// second one is worth re-running later; see LaneToolsMenu.
renderModal();
const user = userEvent.setup();
await user.click(screen.getByRole("button", { name: "Repo" }));
const repoField = screen.getByLabelText("Directory");
await focusField(user, repoField);
await user.type(repoField, "/Users/tester/projects/repo");
await user.click(screen.getByLabelText("Create/update readme file"));
await user.click(screen.getByRole("button", { name: "Add lane" }));
await waitFor(() =>
expect(api.run.start).toHaveBeenCalledWith({
laneId: 9,
cwd: "/Users/tester/projects/repo",
initialPrompt: "/sg-all:sg-md-writing",
})
);
});
it("is hidden for a codex lane, which has no slash commands", async () => {
renderModal();
const user = userEvent.setup();
await user.click(screen.getByRole("button", { name: "Codex" }));
expect(screen.queryByLabelText("Create/update readme file")).toBeNull();
});
});
@@ -462,6 +462,29 @@ describe("LaneToolsMenu", () => {
expect(await screen.findByTestId("lane-action-result")).toHaveTextContent("003_a.sql");
});
it("clicking Create/update readme opens the lane's terminal on the docs skill", async () => {
// Moved here from the Add-lane modal: a skill only runs inside a CLI
// session, and writing the docs is worth re-running long after creation.
vi.mocked(api.run.start).mockResolvedValue({} as never);
render(<LaneToolsMenu lane={makeLane({ cwd: "/work/demo" })} />);
await userEvent.click(await screen.findByTestId("lane-tools-menu"));
await userEvent.click(await screen.findByTestId("lane-write-docs"));
await waitFor(() =>
expect(api.run.start).toHaveBeenCalledWith({
laneId: 1,
cwd: "/work/demo",
initialPrompt: "/sg-all:sg-md-writing",
})
);
});
it("hides Create/update readme on a codex lane, which has no slash commands", async () => {
render(<LaneToolsMenu lane={makeLane({ tool: "codex" })} />);
await userEvent.click(await screen.findByTestId("lane-tools-menu"));
expect(await screen.findByTestId("lane-mcp-sync")).toBeInTheDocument();
expect(screen.queryByTestId("lane-write-docs")).not.toBeInTheDocument();
});
it("renders nothing when the lane has no profile", async () => {
vi.mocked(api.lanes.runtime).mockResolvedValue({ available: false });
const { container } = render(<LaneToolsMenu lane={makeLane()} />);
@@ -75,7 +75,7 @@ export function LaneConsolePane({
const [prompt, setPrompt] = useState("");
const [model, setModel] = useState("");
const [permissionMode, setPermissionMode] = useState<PermissionMode>("acceptEdits");
const [permissionMode, setPermissionMode] = useState<PermissionMode>("auto");
const [effort, setEffort] = useState<EffortLevel>("");
const [cwd, setCwd] = useState(() => lanes.find((l) => l.id === laneId)?.cwd ?? defaultCwd ?? "");
const [resumeSession, setResumeSession] = useState<Session | null>(null);
@@ -491,6 +491,13 @@ export function LaneConsolePane({
<TerminalView
runId={handle!.id}
wsBaseUrl={window.location.origin.replace(/^http/, "ws")}
// The pane died (double Ctrl+C out of `claude`, `exit`, a crash) —
// go straight back to the setup form rather than leaving a dead
// terminal the user has to click "New run" out of.
onExit={() => {
newRun();
refreshList();
}}
/>
<button
onClick={newRun}
+1
View File
@@ -203,6 +203,7 @@ export function RunSetup(props: RunSetupProps) {
value={props.permissionMode}
onChange={props.onPermissionModeChange}
options={[
{ value: "auto", label: t("fields.permissionAuto") },
{ value: "acceptEdits", label: t("fields.permissionAcceptEdits") },
{ value: "default", label: t("fields.permissionDefault") },
{ value: "plan", label: t("fields.permissionPlan") },
+33 -3
View File
@@ -20,10 +20,19 @@ import "@xterm/xterm/css/xterm.css";
interface TerminalViewProps {
runId: string;
wsBaseUrl: string;
/** The pane's process ended (a double Ctrl+C, `exit`, a `claude` that quit).
* There is nothing left to attach to, so the owner swaps this terminal back
* out for its run setup form instead of leaving a dead pane on screen. */
onExit?: () => void;
}
export function TerminalView({ runId, wsBaseUrl }: TerminalViewProps) {
export function TerminalView({ runId, wsBaseUrl, onExit }: TerminalViewProps) {
const containerRef = useRef<HTMLDivElement>(null);
// Read through a ref: an inline `onExit` from the parent changes identity on
// every render, and as an effect dep it would tear the terminal down and
// re-attach on each one.
const onExitRef = useRef(onExit);
onExitRef.current = onExit;
useEffect(() => {
// An explicit fontFamily pins every glyph to one bundled webfont. Left
@@ -35,8 +44,15 @@ export function TerminalView({ runId, wsBaseUrl }: TerminalViewProps) {
// *neighbours*, not from overflowing its own cell). JetBrains Mono is
// already bundled for the rest of the UI; main.tsx additionally imports
// its `vietnamese` subset so this covers the diacritics too.
// NO `convertEol`. It rewrites every bare LF as CR+LF, i.e. it forces the
// cursor to column 0 on a line feed — and xterm's own docs say not to use
// it on a PTY, where termios already does that translation for the streams
// that want it. tmux scrolls a pane by emitting a bare LF and then keeps
// drawing at the column it was on; with this on, that draw landed at
// column 0 instead, stamping the first characters of the line into the
// left margin of the rows below. That is the torn left edge of issue #33,
// and why it only showed up once content scrolled.
const term = new Terminal({
convertEol: true,
fontSize: 13,
cursorBlink: true,
fontFamily: '"JetBrains Mono", monospace',
@@ -63,6 +79,10 @@ export function TerminalView({ runId, wsBaseUrl }: TerminalViewProps) {
}
fit.fit();
// Take the keyboard as soon as the pane is on screen: the terminal IS the
// page here, and having to click it first meant the first thing typed went
// nowhere. A click elsewhere still moves focus away, as in any editor.
term.focus();
// When the pane's program has NOT enabled wheel reporting, xterm falls back
// to converting each wheel notch on an alt-screen buffer into a cursor-key
@@ -116,7 +136,16 @@ export function TerminalView({ runId, wsBaseUrl }: TerminalViewProps) {
let disposed = false;
const connect = () => {
const sock = new WebSocket(`${wsBaseUrl}/ws-pty/${encodeURIComponent(runId)}`);
// The attach itself carries this terminal's size. tmux sizes the window
// to the client that attached most recently, so spawning the attach at a
// default 80×24 and correcting it from the first `resize` message a beat
// later makes the pane's program (claude) redraw its whole UI at 80
// columns first — and everything painted at that width stays in the
// scrollback as torn fragments along the left margin, visible as soon as
// you scroll back (issue #33). Happens on every attach: page load,
// lane switch, and each 1.5 s reconnect.
const size = term.cols > 1 && term.rows > 1 ? `?cols=${term.cols}&rows=${term.rows}` : "";
const sock = new WebSocket(`${wsBaseUrl}/ws-pty/${encodeURIComponent(runId)}${size}`);
ws = sock;
// Server sends PTY bytes as binary frames — default binaryType ("blob")
// would hand onmessage a Blob that the string checks below never match,
@@ -143,6 +172,7 @@ export function TerminalView({ runId, wsBaseUrl }: TerminalViewProps) {
if (msg.type === "exit") {
ended = true;
term.write(`\r\n[session ended, exit code ${msg.code}]\r\n`);
onExitRef.current?.();
}
return;
} catch {
@@ -11,8 +11,12 @@ import { api } from "../../../lib/api";
import type { Lane } from "../../../lib/types";
vi.mock("../TerminalView", () => ({
TerminalView: ({ runId }: { runId: string }) => (
<div data-testid="terminal-view" data-run-id={runId} />
// The exit button stands in for the server's `exit` frame (a double Ctrl+C
// out of claude), which the real TerminalView reports through `onExit`.
TerminalView: ({ runId, onExit }: { runId: string; onExit?: () => void }) => (
<div data-testid="terminal-view" data-run-id={runId}>
<button data-testid="fake-pane-exit" onClick={() => onExit?.()} />
</div>
),
}));
@@ -130,6 +134,35 @@ describe("LaneConsolePane", () => {
);
});
it("returns to the setup form when the pane exits, without a New run click", async () => {
(api.lanes.action as ReturnType<typeof vi.fn>).mockResolvedValue({
lane: { ...LANE, run_id: "run-1" },
});
(api.run.get as ReturnType<typeof vi.fn>).mockResolvedValue({
id: "run-1",
laneId: 1,
status: "running",
cwd: "/workspace/a",
model: null,
permissionMode: null,
effort: null,
resumeSessionId: null,
sessionId: null,
startedAt: null,
promptPreview: null,
});
render(<LaneConsolePane {...baseProps()} />);
fireEvent.change(screen.getByPlaceholderText(/ask claude/i), { target: { value: "go" } });
fireEvent.click(screen.getByRole("button", { name: /^run$/i }));
await screen.findByTestId("terminal-view");
fireEvent.click(screen.getByTestId("fake-pane-exit"));
await waitFor(() => expect(screen.queryByTestId("terminal-view")).not.toBeInTheDocument());
expect(screen.getByPlaceholderText(/ask claude/i)).toBeInTheDocument();
});
it("swaps to the newly selected lane's own terminal instead of keeping the old one", async () => {
const LANE2: Lane = { ...LANE, id: 2, title: "other", cwd: "/workspace/b" };
const run = (id: string, laneId: number) => ({
@@ -121,8 +121,10 @@ describe("RunSetup — selections report through callbacks", () => {
it("reports the model from the picker, including a custom id", () => {
const { spies } = renderSetup();
pickFromSelect(i18n.t("run:fields.modelInheritLabel"), "Sonnet 5");
expect(spies.onModelChange).toHaveBeenCalledWith("claude-sonnet-5");
// The picker offers the CLI's "latest" aliases, not pinned ids — that is
// what keeps the list from going stale on every model release.
pickFromSelect(i18n.t("run:fields.modelInheritLabel"), "Sonnet (latest)");
expect(spies.onModelChange).toHaveBeenCalledWith("sonnet");
// "Custom…" is a sentinel, not a model id — it must not be reported as one;
// the free-text box it reveals is what reports.
fireEvent.click(screen.getByText(i18n.t("run:fields.modelInheritLabel")));
@@ -16,6 +16,7 @@ const openMock = vi.fn();
const disposeMock = vi.fn();
const wheelHandlerMock = vi.fn();
const keyHandlerMock = vi.fn();
const focusMock = vi.fn();
const loadAddonMock = vi.fn();
// Mutable stand-ins for the two live terminal facts the wheel handler reads.
const termState = {
@@ -54,6 +55,7 @@ vi.mock("@xterm/xterm", () => ({
loadAddon: loadAddonMock,
attachCustomWheelEventHandler: wheelHandlerMock,
attachCustomKeyEventHandler: keyHandlerMock,
focus: focusMock,
})),
}));
vi.mock("@xterm/addon-fit", () => ({
@@ -100,13 +102,27 @@ describe("TerminalView", () => {
keyHandlerMock.mockClear();
loadAddonMock.mockClear();
openMock.mockClear();
focusMock.mockClear();
});
afterEach(cleanup);
it("opens a WS connection to the run's ws-pty path", () => {
it("opens a WS connection to the run's ws-pty path, carrying its own size", () => {
// The size rides on the attach URL, not on a `resize` message sent after
// it: tmux resizes the window to the newest client, so attaching at the
// server's default 80x24 makes claude redraw its UI at 80 columns and
// leaves that width in the scrollback (issue #33).
render(<TerminalView runId="agenthub-lane-1" wsBaseUrl="ws://localhost:4820" />);
expect(MockWebSocket.instances).toHaveLength(1);
expect(MockWebSocket.instances[0]!.url).toBe(
"ws://localhost:4820/ws-pty/agenthub-lane-1?cols=131&rows=28"
);
});
it("omits the size when the terminal has none yet (a collapsed console is 0x0)", () => {
termState.cols = 0;
termState.rows = 0;
render(<TerminalView runId="agenthub-lane-1" wsBaseUrl="ws://localhost:4820" />);
expect(MockWebSocket.instances[0]!.url).toBe("ws://localhost:4820/ws-pty/agenthub-lane-1");
});
@@ -184,6 +200,24 @@ describe("TerminalView", () => {
expect(preventPlainTab).not.toHaveBeenCalled();
});
it("takes the keyboard as soon as it mounts", () => {
// The terminal IS the page here — without this the first thing typed after
// opening a lane went nowhere until the user clicked the pane.
render(<TerminalView runId="agenthub-lane-1" wsBaseUrl="ws://localhost:4820" />);
expect(focusMock).toHaveBeenCalled();
});
it("tells its owner when the pane exited, so the setup form can come back", () => {
// A double Ctrl+C out of `claude` ends the tmux session; the dead pane used
// to sit there until the user found the "New run" button.
const onExit = vi.fn();
render(
<TerminalView runId="agenthub-lane-1" wsBaseUrl="ws://localhost:4820" onExit={onExit} />
);
MockWebSocket.instances[0]!.onmessage?.({ data: '{"type":"exit","code":0}' });
expect(onExit).toHaveBeenCalledTimes(1);
});
it("renders through the canvas addon, not xterm's DOM renderer", () => {
// The DOM renderer aligns a row with one `letter-spacing`, which holds only
// while every glyph shares a font. Vietnamese diacritics and CJK fall to a