From 6f3a2607ecb7cc9951ecaf95b403e032c1a0b980 Mon Sep 17 00:00:00 2001
From: Mate Dabis <mdabis@inf.u-szeged.hu>
Date: Fri, 18 Jan 2019 11:18:59 +0100
Subject: [PATCH] Increase test coverage: Array.prototype.toString

Branch coverage:
Before: 5/6
After:  6/6

JerryScript-DCO-1.0-Signed-off-by: Mate Dabis mdabis@inf.u-szeged.hu
---
 tests/jerry/array-prototype-tostring.js | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/tests/jerry/array-prototype-tostring.js b/tests/jerry/array-prototype-tostring.js
index 5fd8853cae..ac784c7a60 100644
--- a/tests/jerry/array-prototype-tostring.js
+++ b/tests/jerry/array-prototype-tostring.js
@@ -61,3 +61,12 @@ try {
   assert (e.message === "foo");
   assert (e instanceof ReferenceError);
 }
+
+/* ES v5.1 15.4.4.2.1.
+   Checking behavior when the function's this_argument is undefined */
+try {
+  Array.prototype.toString.call(undefined);
+  assert(false);
+} catch (e) {
+  assert(e instanceof TypeError);
+}