@teaui/core/.dist/TestProgram.js

A high-level terminal UI library for Node

import { TestTerminal } from './TestTerminal.js';
/**
 * A headless Program for testing. Wraps a TestTerminal for output assertions,
 * and allows pushing events programmatically via sendEvent().
 */
export class TestProgram {
    #terminal;
    #eventListener;
    constructor({ cols, rows }) {
        this.#terminal = new TestTerminal({ cols, rows });
    }
    get terminal() {
        return this.#terminal;
    }
    // --- SGRTerminal interface ---
    get cols() {
        return this.#terminal.cols;
    }
    get rows() {
        return this.#terminal.rows;
    }
    move(x, y) {
        this.#terminal.move(x, y);
    }
    write(str) {
        this.#terminal.write(str);
    }
    flush() {
        this.#terminal.flush();
    }
    // --- Program lifecycle ---
    setup() { }
    teardown() { }
    // --- Events ---
    onEvents(listener) {
        this.#eventListener = listener;
        return () => {
            this.#eventListener = undefined;
        };
    }
    onResize(_listener) {
        // No resize in tests — return no-op unsubscribe
        return () => { };
    }
    /**
     * Push a system event into the Screen's event pipeline.
     */
    sendEvent(event) {
        this.#eventListener?.(event);
    }
}
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