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diff --git a/js/src/tests/test262/built-ins/RegExp/CharacterClassEscapes/character-class-non-whitespace-class-escape-plus-quantifier.js b/js/src/tests/test262/built-ins/RegExp/CharacterClassEscapes/character-class-non-whitespace-class-escape-plus-quantifier.js
new file mode 100644
index 0000000000..af82575ec4
--- /dev/null
+++ b/js/src/tests/test262/built-ins/RegExp/CharacterClassEscapes/character-class-non-whitespace-class-escape-plus-quantifier.js
@@ -0,0 +1,78 @@
+// Copyright (C) 2018 Leo Balter.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: prod-CharacterClassEscape
+description: >
+    Compare range for non-whitespace class escape \S+ with flags g
+info: |
+    This is a generated test. Please check out
+    https://github.com/bocoup/test262-regexp-generator
+    for any changes.
+
+    CharacterClassEscape[U] ::
+        d
+        D
+        s
+        S
+        w
+        W
+
+    21.2.2.12 CharacterClassEscape
+
+    The production CharacterClassEscape :: d evaluates as follows:
+        Return the ten-element set of characters containing the characters 0 through 9 inclusive.
+    The production CharacterClassEscape :: D evaluates as follows:
+        Return the set of all characters not included in the set returned by CharacterClassEscape :: d.
+    The production CharacterClassEscape :: s evaluates as follows:
+        Return the set of characters containing the characters that are on the right-hand side of
+        the WhiteSpace or LineTerminator productions.
+    The production CharacterClassEscape :: S evaluates as follows:
+        Return the set of all characters not included in the set returned by CharacterClassEscape :: s.
+    The production CharacterClassEscape :: w evaluates as follows:
+        Return the set of all characters returned by WordCharacters().
+    The production CharacterClassEscape :: W evaluates as follows:
+        Return the set of all characters not included in the set returned by CharacterClassEscape :: w.
+features: [String.fromCodePoint]
+includes: [regExpUtils.js]
+---*/
+
+const str = buildString({
+    loneCodePoints: [],
+    ranges: [
+        [0x00DC00, 0x00DFFF],
+        [0x000000, 0x000008],
+        [0x00000E, 0x00001F],
+        [0x000021, 0x00009F],
+        [0x0000A1, 0x00167F],
+        [0x001681, 0x001FFF],
+        [0x00200B, 0x002027],
+        [0x00202A, 0x00202E],
+        [0x002030, 0x00205E],
+        [0x002060, 0x002FFF],
+        [0x003001, 0x00DBFF],
+        [0x00E000, 0x00FEFE],
+        [0x00FF00, 0x00FFFF],
+    ],
+});
+
+const re = /\S+/g;
+
+const errors = [];
+
+if (!re.test(str)) {
+    // Error, let's find out where
+    for (const char of str) {
+        if (!re.test(char)) {
+            errors.push('0x' + char.codePointAt(0).toString(16));
+        }
+    }
+}
+
+assert.sameValue(
+    errors.length,
+    0,
+    'Expected matching code points, but received: ' + errors.join(',')
+);
+
+reportCompare(0, 0);