From 61e969d953163d994299781a9ba560030a1b7d47 Mon Sep 17 00:00:00 2001
From: Alexey Shvayka <shvaikalesh@gmail.com>
Date: Sun, 16 Feb 2020 20:54:33 +0200
Subject: [PATCH] Add Array#concat non-extensible tests

---
 ...reate-species-non-extensible-spreadable.js | 43 +++++++++++++++++++
 .../concat/create-species-non-extensible.js   | 41 ++++++++++++++++++
 2 files changed, 84 insertions(+)
 create mode 100644 test/built-ins/Array/prototype/concat/create-species-non-extensible-spreadable.js
 create mode 100644 test/built-ins/Array/prototype/concat/create-species-non-extensible.js

diff --git a/test/built-ins/Array/prototype/concat/create-species-non-extensible-spreadable.js b/test/built-ins/Array/prototype/concat/create-species-non-extensible-spreadable.js
new file mode 100644
index 0000000000..1565025e40
--- /dev/null
+++ b/test/built-ins/Array/prototype/concat/create-species-non-extensible-spreadable.js
@@ -0,0 +1,43 @@
+// Copyright (C) 2020 Alexey Shvayka. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-array.prototype.concat
+description: >
+  TypeError is thrown if CreateDataProperty fails.
+  (result object is non-extensible, argument is spreadable)
+info: |
+  Array.prototype.concat ( ...arguments )
+
+  [...]
+  5. Repeat, while items is not empty
+    [...]
+    c. If spreadable is true, then
+      [...]
+      iv. Repeat, while k < len
+        [...]
+        3. If exists is true, then
+          [...]
+          b. Perform ? CreateDataPropertyOrThrow(A, ! ToString(n), subElement).
+    [...]
+
+  CreateDataPropertyOrThrow ( O, P, V )
+
+  [...]
+  3. Let success be ? CreateDataProperty(O, P, V).
+  4. If success is false, throw a TypeError exception.
+features: [Symbol.species]
+---*/
+
+var A = function(_length) {
+  this.length = 0;
+  Object.preventExtensions(this);
+};
+
+var arr = [];
+arr.constructor = {};
+arr.constructor[Symbol.species] = A;
+
+assert.throws(TypeError, function() {
+  arr.concat([1]);
+});
diff --git a/test/built-ins/Array/prototype/concat/create-species-non-extensible.js b/test/built-ins/Array/prototype/concat/create-species-non-extensible.js
new file mode 100644
index 0000000000..ce69c532ef
--- /dev/null
+++ b/test/built-ins/Array/prototype/concat/create-species-non-extensible.js
@@ -0,0 +1,41 @@
+// Copyright (C) 2020 Alexey Shvayka. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-array.prototype.concat
+description: >
+  TypeError is thrown if CreateDataProperty fails.
+  (result object is non-extensible, argument is not spreadable)
+info: |
+  Array.prototype.concat ( ...arguments )
+
+  [...]
+  5. Repeat, while items is not empty
+    [...]
+    c. If spreadable is true, then
+      [...]
+    d. Else,
+      [...]
+      iii. Perform ? CreateDataPropertyOrThrow(A, ! ToString(n), E).
+    [...]
+
+  CreateDataPropertyOrThrow ( O, P, V )
+
+  [...]
+  3. Let success be ? CreateDataProperty(O, P, V).
+  4. If success is false, throw a TypeError exception.
+features: [Symbol.species]
+---*/
+
+var A = function(_length) {
+  this.length = 0;
+  Object.preventExtensions(this);
+};
+
+var arr = [];
+arr.constructor = {};
+arr.constructor[Symbol.species] = A;
+
+assert.throws(TypeError, function() {
+  arr.concat(1);
+});