1 files changed, 47 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/jaeger/inline/stringCharCodeAt.js b/js/src/jit-test/tests/jaeger/inline/stringCharCodeAt.js
new file mode 100644
index 0000000000..3f0bfe2cfd
--- /dev/null
+++ b/js/src/jit-test/tests/jaeger/inline/stringCharCodeAt.js
@@ -0,0 +1,47 @@
+
+assertEq("foo".charCodeAt(-123), NaN);
+assertEq("foo".charCodeAt(-0), 102);
+assertEq("foo".charCodeAt(0), 102);
+assertEq("foo".charCodeAt(2), 111);
+assertEq("foo".charCodeAt(3.4), NaN);
+assertEq("foo".charCodeAt(), 102);
+assertEq("".charCodeAt(), NaN);
+assertEq("".charCodeAt(0), NaN);
+
+/* Inferred as string.charCodeAt(int). */
+function charCodeAt1(x) {
+    return "abc".charCodeAt(x);
+}
+assertEq(charCodeAt1(-1), NaN);
+assertEq(charCodeAt1(0), 97);
+assertEq(charCodeAt1(1), 98);
+assertEq(charCodeAt1(2), 99);
+assertEq(charCodeAt1(3), NaN);
+assertEq(charCodeAt1(1234), NaN);
+
+/* Inferred as string.charCodeAt(double). */
+function charCodeAt2(x) {
+    return "abc".charCodeAt(x);
+}
+assertEq(charCodeAt2(-1.3), NaN);
+assertEq(charCodeAt2(-0), 97);
+assertEq(charCodeAt2(2), 99);
+assertEq(charCodeAt2(2.3), 99);
+assertEq(charCodeAt2(3.14), NaN);
+assertEq(charCodeAt2(NaN), 97);
+
+/* Test ropes. */
+function charCodeAt3(s, i) {
+    var s2 = "abcdef" + s + "12345";
+    return s2.charCodeAt(i);
+}
+assertEq(charCodeAt3("abcdef", 14), 51);
+assertEq(charCodeAt3("a" + "b", 1), 98);
+assertEq(charCodeAt3("abcdefg" + "hijklmnop", 10), 101);
+
+/* Other 'this'. */
+var n = new Number(123);
+n.charCodeAt = String.prototype.charCodeAt;
+assertEq(n.charCodeAt(1), 50);
+
+