From 8ce27898b919755ad46c1c82a2dca59c2ab3c0bd Mon Sep 17 00:00:00 2001
From: Alexey Shvayka <shvaikalesh@gmail.com>
Date: Wed, 15 Jan 2020 17:48:22 +0200
Subject: [PATCH] Add Then Finally Functions test

---
 ...resolved-observable-then-calls-argument.js | 30 +++++++++++++++++++
 1 file changed, 30 insertions(+)
 create mode 100644 test/built-ins/Promise/prototype/finally/resolved-observable-then-calls-argument.js

diff --git a/test/built-ins/Promise/prototype/finally/resolved-observable-then-calls-argument.js b/test/built-ins/Promise/prototype/finally/resolved-observable-then-calls-argument.js
new file mode 100644
index 0000000000..64ee539c4a
--- /dev/null
+++ b/test/built-ins/Promise/prototype/finally/resolved-observable-then-calls-argument.js
@@ -0,0 +1,30 @@
+// Copyright (C) 2019 Alexey Shvayka. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-thenfinallyfunctions
+description: >
+  valueThunk is anonymous built-in function with length of 1 that returns value.
+info: |
+  Then Finally Functions
+
+  ...
+  8. Let valueThunk be equivalent to a function that returns value.
+  9. Return ? Invoke(promise, "then", « valueThunk »).
+
+  The "length" property of a Then Finally function is 1.
+features: [Promise.prototype.finally, Reflect.construct]
+includes: [isConstructor.js]
+flags: [async]
+---*/
+
+var value = {};
+
+Promise.resolve(value).finally(function() {});
+Promise.prototype.then = function(valueThunk) {
+  assert(!isConstructor(valueThunk));
+  assert.sameValue(valueThunk.length, 1);
+  assert.sameValue(valueThunk.name, '');
+  assert.sameValue(valueThunk(), value);
+
+  $DONE();
+};