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test(split): TerminalTile's socket, xterm and fit fakes live in test/mocks
terminal-tile-input defined FakeSocket, FakeFit and FakeTerminal inline; they move unchanged to test/mocks/terminal-tile-fakes.ts so the grid's load-queue test can drive a real TerminalTile on the same fakes instead of its own near-copies. No assertion changed (a tile that never registers its input socket still fails six cases). Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
This commit is contained in:
Codeman maintainer
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/**
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* @fileoverview Fakes for driving a real TerminalTile (terminal-tile.js) in a
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* `vm` context: its WebSocket, its xterm and the fit addon. A test puts them in
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* the context as `WebSocket`, `Terminal` and `FitAddon.FitAddon`, and runs
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* `connect()` and the socket handlers for real.
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*/
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import { vi } from 'vitest';
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export type Frame = { t: string; d?: string; seq?: number; cid?: string; c?: number; r?: number };
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/** A WebSocket the test opens, feeds and closes by hand; `sent` holds every frame the tile sent. */
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export class FakeSocket {
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static OPEN = 1;
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static instances: FakeSocket[] = [];
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readyState = 0;
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sent: Frame[] = [];
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onopen: (() => void) | null = null;
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onmessage: ((ev: { data: string }) => void) | null = null;
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onclose: ((ev?: { code: number }) => void) | null = null;
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onerror: (() => void) | null = null;
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constructor(public url: string) {
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FakeSocket.instances.push(this);
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}
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send(data: string) {
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this.sent.push(JSON.parse(data) as Frame);
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}
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close = vi.fn(() => {
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this.readyState = 3;
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});
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open() {
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this.readyState = 1;
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this.onopen?.();
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}
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receive(msg: object) {
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this.onmessage?.({ data: JSON.stringify(msg) });
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}
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inputFrames() {
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return this.sent.filter((f) => f.t === 'i');
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}
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}
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/** The fit addon: proposes `FakeFit.proposed` and, like the real one, resizes to it (NaN = hidden pane). */
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export class FakeFit {
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static proposed = { cols: 80, rows: 24 };
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term: FakeTerminal | null = null;
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fit() {
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const { cols, rows } = FakeFit.proposed;
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if (!Number.isFinite(cols) || !Number.isFinite(rows)) return;
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this.term?.resize(cols, rows);
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}
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proposeDimensions() {
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return { ...FakeFit.proposed };
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}
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}
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/** An xterm that records writes, resizes and its handlers; `type()` feeds onData like a keystroke. */
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export class FakeTerminal {
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static last: FakeTerminal | null = null;
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options: Record<string, unknown>;
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cols = 80;
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rows = 24;
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dataCb: ((data: string) => void) | null = null;
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buffer = { active: { type: 'normal', viewportY: 0, length: 24 } };
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constructor(options: Record<string, unknown>) {
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this.options = { ...options };
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FakeTerminal.last = this;
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}
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loadAddon(addon: FakeFit) {
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addon.term = this;
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}
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open() {}
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onData(cb: (data: string) => void) {
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this.dataCb = cb;
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}
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keyHandler: ((ev: Record<string, unknown>) => boolean) | null = null;
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focusListeners: Array<() => void> = [];
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textarea = {
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addEventListener: (type: string, fn: () => void) => {
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if (type === 'focus') this.focusListeners.push(fn);
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},
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removeEventListener: (type: string, fn: () => void) => {
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if (type === 'focus') this.focusListeners = this.focusListeners.filter((f) => f !== fn);
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},
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};
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focusTextarea() {
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for (const fn of this.focusListeners) fn();
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}
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attachCustomKeyEventHandler(fn: (ev: Record<string, unknown>) => boolean) {
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this.keyHandler = fn;
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}
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registerLinkProvider() {}
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writes: string[] = [];
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write(data: string, cb?: () => void) {
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this.writes.push(data);
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cb?.();
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}
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clear() {
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this.writes.push('<CLEAR>');
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}
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resizes: Array<[number, number]> = [];
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resize(cols: number, rows: number) {
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this.resizes.push([cols, rows]);
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this.cols = cols;
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this.rows = rows;
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}
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dispose() {}
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type(data: string) {
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this.dataCb?.(data);
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}
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/** What a drag selected; '' is no selection. */
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selection = '';
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hasSelection() {
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return this.selection !== '';
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}
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getSelection() {
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return this.selection;
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}
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clearSelection = vi.fn(() => {
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this.selection = '';
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});
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focus = vi.fn();
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}
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@@ -18,126 +18,15 @@
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*
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* Real code under test: constants.js + app.js (the queue) + terminal-ui.js (the
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* shared input predicates) + terminal-tile.js, in one `vm` context. xterm, the
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* fit addon and WebSocket are fakes; `connect()` runs for real.
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* fit addon and WebSocket are fakes (test/mocks/terminal-tile-fakes.ts);
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* `connect()` runs for real.
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*/
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import { readFileSync } from 'node:fs';
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import { performance } from 'node:perf_hooks';
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import { resolve } from 'node:path';
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import vm from 'node:vm';
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import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest';
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type Frame = { t: string; d?: string; seq?: number; cid?: string; c?: number; r?: number };
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class FakeSocket {
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static OPEN = 1;
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static instances: FakeSocket[] = [];
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readyState = 0;
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sent: Frame[] = [];
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onopen: (() => void) | null = null;
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onmessage: ((ev: { data: string }) => void) | null = null;
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onclose: ((ev?: { code: number }) => void) | null = null;
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onerror: (() => void) | null = null;
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constructor(public url: string) {
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FakeSocket.instances.push(this);
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}
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send(data: string) {
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this.sent.push(JSON.parse(data) as Frame);
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}
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close = vi.fn(() => {
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this.readyState = 3;
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});
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open() {
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this.readyState = 1;
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this.onopen?.();
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}
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receive(msg: object) {
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this.onmessage?.({ data: JSON.stringify(msg) });
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}
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inputFrames() {
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return this.sent.filter((f) => f.t === 'i');
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}
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}
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/** The fit addon: proposes `FakeFit.proposed` and, like the real one, resizes to it (NaN = hidden pane). */
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class FakeFit {
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static proposed = { cols: 80, rows: 24 };
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term: FakeTerminal | null = null;
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fit() {
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const { cols, rows } = FakeFit.proposed;
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if (!Number.isFinite(cols) || !Number.isFinite(rows)) return;
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this.term?.resize(cols, rows);
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}
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proposeDimensions() {
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return { ...FakeFit.proposed };
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}
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}
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class FakeTerminal {
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static last: FakeTerminal | null = null;
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options: Record<string, unknown>;
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cols = 80;
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rows = 24;
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dataCb: ((data: string) => void) | null = null;
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buffer = { active: { type: 'normal', viewportY: 0, length: 24 } };
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constructor(options: Record<string, unknown>) {
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this.options = { ...options };
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FakeTerminal.last = this;
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}
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loadAddon(addon: FakeFit) {
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addon.term = this;
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}
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open() {}
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onData(cb: (data: string) => void) {
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this.dataCb = cb;
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}
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keyHandler: ((ev: Record<string, unknown>) => boolean) | null = null;
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focusListeners: Array<() => void> = [];
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textarea = {
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addEventListener: (type: string, fn: () => void) => {
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if (type === 'focus') this.focusListeners.push(fn);
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},
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removeEventListener: (type: string, fn: () => void) => {
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if (type === 'focus') this.focusListeners = this.focusListeners.filter((f) => f !== fn);
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},
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};
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focusTextarea() {
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for (const fn of this.focusListeners) fn();
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}
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attachCustomKeyEventHandler(fn: (ev: Record<string, unknown>) => boolean) {
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this.keyHandler = fn;
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}
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registerLinkProvider() {}
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writes: string[] = [];
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write(data: string, cb?: () => void) {
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this.writes.push(data);
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cb?.();
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}
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clear() {
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this.writes.push('<CLEAR>');
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}
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resizes: Array<[number, number]> = [];
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resize(cols: number, rows: number) {
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this.resizes.push([cols, rows]);
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this.cols = cols;
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this.rows = rows;
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}
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dispose() {}
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type(data: string) {
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this.dataCb?.(data);
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}
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/** What a drag selected; '' is no selection. */
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selection = '';
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hasSelection() {
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return this.selection !== '';
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}
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getSelection() {
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return this.selection;
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}
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clearSelection = vi.fn(() => {
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this.selection = '';
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});
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focus = vi.fn();
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}
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import { FakeFit, FakeSocket, FakeTerminal } from './mocks/terminal-tile-fakes.js';
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const fetchMock = vi.fn();
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