1 files changed, 42 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/RegExp/prototype/Symbol.matchAll/species-constructor.js b/js/src/tests/test262/built-ins/RegExp/prototype/Symbol.matchAll/species-constructor.js
new file mode 100644
index 0000000000..521301b381
--- /dev/null
+++ b/js/src/tests/test262/built-ins/RegExp/prototype/Symbol.matchAll/species-constructor.js
@@ -0,0 +1,42 @@
+// Copyright (C) 2018 Peter Wong. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: pending
+description: Custom species constructor is called when creating internal RegExp
+info: |
+  RegExp.prototype [ @@matchAll ] ( string )
+    [...]
+    4. Let C be ? SpeciesConstructor(R, %RegExp%).
+    5. Let flags be ? ToString(? Get(R, "flags")).
+    6. Let matcher be ? Construct(C, « R, flags »).
+    [...]
+    9. If flags contains "g", let global be true.
+    10. Else, let global be false.
+    [...]
+features: [Symbol.matchAll, Symbol.species]
+includes: [compareArray.js, compareIterator.js, regExpUtils.js]
+---*/
+
+var callCount = 0;
+var callArgs;
+var regexp = /\d/u;
+regexp.constructor = {
+  [Symbol.species]: function(){
+    callCount++;
+    callArgs = arguments;
+    return /\w/g;
+  }
+};
+var str = 'a*b';
+var iter = regexp[Symbol.matchAll](str);
+
+assert.sameValue(callCount, 1);
+assert.sameValue(callArgs.length, 2);
+assert.sameValue(callArgs[0], regexp);
+assert.sameValue(callArgs[1], 'u');
+
+assert.compareIterator(iter, [
+  matchValidator(['a'], 0, str),
+]);
+
+reportCompare(0, 0);