test: backward compatible api for tty

PR-URL: https://github.com/nodejs/node/pull/15235
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Daijiro Wachi <daijiro.wachi@gmail.com>

test/parallel/test-tty-backwards-api.js

@@ -0,0 +1,25 @@
+'use strict';
+const common = require('../common');
+
+const noop = () => {};
+const TTY = process.binding('tty_wrap').TTY = function() {};
+
+TTY.prototype = {
+  setBlocking: noop,
+  getWindowSize: noop
+};
+
+const { WriteStream } = require('tty');
+
+const methods = [
+  'cursorTo',
+  'moveCursor',
+  'clearLine',
+  'clearScreenDown'
+];
+
+methods.forEach((method) => {
+  require('readline')[method] = common.mustCall();
+  const writeStream = new WriteStream(1);
+  writeStream[method](1, 2);
+});