1 files changed, 45 insertions, 0 deletions
diff --git a/js/src/tests/non262/syntax/unicode_other_id_continue.js b/js/src/tests/non262/syntax/unicode_other_id_continue.js
new file mode 100644
index 0000000000..03dd09b71b
--- /dev/null
+++ b/js/src/tests/non262/syntax/unicode_other_id_continue.js
@@ -0,0 +1,45 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+// From PropList.txt (Unicode 9):
+const otherIdContinue = [
+    0x00B7,     // MIDDLE DOT, Gc=Po
+    0x0387,     // GREEK ANO TELEIA, Gc=Po
+    0x1369,     // ETHIOPIC DIGIT ONE, Gc=No
+    0x136A,     // ETHIOPIC DIGIT TWO, Gc=No
+    0x136B,     // ETHIOPIC DIGIT THREE, Gc=No
+    0x136C,     // ETHIOPIC DIGIT FOUR, Gc=No
+    0x136D,     // ETHIOPIC DIGIT FIVE, Gc=No
+    0x136E,     // ETHIOPIC DIGIT SIX, Gc=No
+    0x136F,     // ETHIOPIC DIGIT SEVEN, Gc=No
+    0x1370,     // ETHIOPIC DIGIT EIGHT, Gc=No
+    0x1371,     // ETHIOPIC DIGIT NINE, Gc=No
+    0x19DA,     // NEW TAI LUE THAM DIGIT ONE, Gc=No
+];
+
+// Leading character in identifier.
+for (let ident of [...otherIdContinue]) {
+    assertThrowsInstanceOf(() => eval(`${String.fromCodePoint(ident)}`), SyntaxError);
+    assertThrowsInstanceOf(() => eval(`\\u${ident.toString(16).padStart(4, "0")}`), SyntaxError);
+    assertThrowsInstanceOf(() => eval(`\\u{${ident.toString(16)}}`), SyntaxError);
+}
+
+// Not leading character in identifier.
+for (let ident of [...otherIdContinue]) {
+    eval(`
+        let A${String.fromCodePoint(ident)} = 123;
+        assertEq(${String.fromCodePoint(0x41, ident)}, 123);
+    `);
+    eval(`
+        let A\\u${ident.toString(16).padStart(4, "0")} = 123;
+        assertEq(${String.fromCodePoint(0x41, ident)}, 123);
+    `);
+    eval(`
+        let A\\u{${ident.toString(16)}} = 123;
+        assertEq(${String.fromCodePoint(0x41, ident)}, 123);
+    `);
+}
+
+if (typeof reportCompare === "function")
+    reportCompare(0, 0, "ok");