1 files changed, 57 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/latin1/toLowerCase-toUpperCase.js b/js/src/jit-test/tests/latin1/toLowerCase-toUpperCase.js
new file mode 100644
index 0000000000..d1855dc3d7
--- /dev/null
+++ b/js/src/jit-test/tests/latin1/toLowerCase-toUpperCase.js
@@ -0,0 +1,57 @@
+function testToLowerCase() {
+    var s1 = "abcdefgABCDEFGH 123456";
+    assertEq(isLatin1(s1), true);
+
+    // Latin1
+    var s2 = s1.toLowerCase();
+    assertEq(isLatin1(s2), true);
+    assertEq(s2, "abcdefgabcdefgh 123456");
+
+    s2 = s1.toLocaleLowerCase();
+    assertEq(isLatin1(s2), true);
+    assertEq(s2, "abcdefgabcdefgh 123456");
+
+    // TwoByte
+    s2 = "abcdefg\u1200ABCDEFGH 123456\u04AC".toLowerCase();
+    assertEq(s2, "abcdefg\u1200abcdefgh 123456\u04AD");
+
+    s2 = "abcdefg\u1200ABCDEFGH 123456\u04AC".toLocaleLowerCase();
+    assertEq(s2, "abcdefg\u1200abcdefgh 123456\u04AD");
+
+    // For toLowerCase, every Latin1 character maps to a Latin1 character.
+    for (var i=0; i <= 0xff; i++) {
+	var s = "\u1200\u11AA" + String.fromCharCode(i);
+	assertEq(s.toLowerCase().charCodeAt(2) <= 0xff, true);
+    }
+}
+testToLowerCase();
+
+function testToUpperCase() {
+    var s1 = "abcdefgABCDEFGH 12345";
+    assertEq(isLatin1(s1), true);
+
+    // Latin1
+    var s2 = s1.toUpperCase();
+    assertEq(isLatin1(s2), true);
+    assertEq(s2, "ABCDEFGABCDEFGH 12345");
+
+    s2 = s1.toLocaleUpperCase();
+    assertEq(isLatin1(s2), true);
+    assertEq(s2, "ABCDEFGABCDEFGH 12345");
+
+    // TwoByte
+    s2 = "abcdefg\u1200ABCDEFGH 12345\u1E0F".toUpperCase();
+    assertEq(s2, "ABCDEFG\u1200ABCDEFGH 12345\u1E0E");
+
+    s2 = "abcdefg\u1200ABCDEFGH 12345\u1E0F".toLocaleUpperCase();
+    assertEq(s2, "ABCDEFG\u1200ABCDEFGH 12345\u1E0E");
+
+    // Tricky case: Latin1 character \u00FF maps to \u0178, a
+    // non-Latin1 character.
+    s1 = "ABC\u00FF";
+    assertEq(isLatin1(s1), true);
+    s2 = s1.toUpperCase();
+    assertEq(isLatin1(s2), false);
+    assertEq(s2, "ABC\u0178");
+}
+testToUpperCase();