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// Flags: --expose-internals 'use strict'; const common = require('../common'); const assert = require('assert'); const readline = require('readline'); const noop = () => {}; const { internalBinding } = require('internal/test/binding'); const TTY = internalBinding('tty_wrap').TTY = function() {}; TTY.prototype = { setBlocking: noop, getWindowSize: noop }; const { WriteStream } = require('tty'); [ 'cursorTo', 'moveCursor', 'clearLine', 'clearScreenDown', ].forEach((method) => { readline[method] = common.mustCall(function() { const lastArg = arguments[arguments.length - 1]; if (typeof lastArg === 'function') { process.nextTick(lastArg); } return true; }, 2); }); const writeStream = new WriteStream(1); // Verify that the corresponding readline methods are called, that the return // values are propagated, and any callbacks are invoked. assert.strictEqual(writeStream.cursorTo(1, 2), true); assert.strictEqual(writeStream.cursorTo(1, 2, common.mustCall()), true); assert.strictEqual(writeStream.moveCursor(1, 2), true); assert.strictEqual(writeStream.moveCursor(1, 2, common.mustCall()), true); assert.strictEqual(writeStream.clearLine(1), true); assert.strictEqual(writeStream.clearLine(1, common.mustCall()), true); assert.strictEqual(writeStream.clearScreenDown(), true); assert.strictEqual(writeStream.clearScreenDown(common.mustCall()), true);