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-rw-r--r--js/src/tests/ecma_6/RegExp/unicode-index.js17
1 files changed, 17 insertions, 0 deletions
diff --git a/js/src/tests/ecma_6/RegExp/unicode-index.js b/js/src/tests/ecma_6/RegExp/unicode-index.js
new file mode 100644
index 000000000..a4b2eb203
--- /dev/null
+++ b/js/src/tests/ecma_6/RegExp/unicode-index.js
@@ -0,0 +1,17 @@
+var BUGNUMBER = 1135377;
+var summary = "Implement RegExp unicode flag -- Pattern match should start from lead surrogate when lastIndex points corresponding trail surrogate.";
+
+print(BUGNUMBER + ": " + summary);
+
+var r = /\uD83D\uDC38/ug;
+r.lastIndex = 1;
+var str = "\uD83D\uDC38";
+var result = r.exec(str);
+assertEq(result.length, 1);
+assertEq(result[0], "\uD83D\uDC38");
+
+// This does not match to ES6 spec, but the spec will be changed.
+assertEq(result.index, 0);
+
+if (typeof reportCompare === "function")
+ reportCompare(true, true);