1 files changed, 50 insertions, 0 deletions
diff --git a/tests/node_compat/test/parallel/test-event-emitter-prepend.js b/tests/node_compat/test/parallel/test-event-emitter-prepend.js
new file mode 100644
index 000000000..b06722742
--- /dev/null
+++ b/tests/node_compat/test/parallel/test-event-emitter-prepend.js
@@ -0,0 +1,50 @@
+// deno-fmt-ignore-file
+// deno-lint-ignore-file
+
+// Copyright Joyent and Node contributors. All rights reserved. MIT license.
+// Taken from Node 16.13.0
+// This file is automatically generated by "node/_tools/setup.ts". Do not modify this file manually
+
+'use strict';
+
+const common = require('../common');
+const EventEmitter = require('events');
+const assert = require('assert');
+
+const myEE = new EventEmitter();
+let m = 0;
+// This one comes last.
+myEE.on('foo', common.mustCall(() => assert.strictEqual(m, 2)));
+
+// This one comes second.
+myEE.prependListener('foo', common.mustCall(() => assert.strictEqual(m++, 1)));
+
+// This one comes first.
+myEE.prependOnceListener('foo',
+                         common.mustCall(() => assert.strictEqual(m++, 0)));
+
+myEE.emit('foo');
+
+// Test fallback if prependListener is undefined.
+const stream = require('stream');
+
+delete EventEmitter.prototype.prependListener;
+
+function Writable() {
+  this.writable = true;
+  stream.Stream.call(this);
+}
+Object.setPrototypeOf(Writable.prototype, stream.Stream.prototype);
+Object.setPrototypeOf(Writable, stream.Stream);
+
+function Readable() {
+  this.readable = true;
+  stream.Stream.call(this);
+}
+Object.setPrototypeOf(Readable.prototype, stream.Stream.prototype);
+Object.setPrototypeOf(Readable, stream.Stream);
+
+// FIXME(bartlomieju):
+// const w = new Writable();
+// const r = new Readable();
+// r.pipe(w);