1 files changed, 64 insertions, 0 deletions
diff --git a/js/src/tests/non262/Intl/String/toLocaleUpperCase.js b/js/src/tests/non262/Intl/String/toLocaleUpperCase.js
new file mode 100644
index 0000000000..0a33320dc7
--- /dev/null
+++ b/js/src/tests/non262/Intl/String/toLocaleUpperCase.js
@@ -0,0 +1,64 @@
+// |reftest| skip-if(!this.hasOwnProperty("Intl"))
+
+// Test language dependent special casing with different language tags.
+for (let locale of ["lt", "LT", "lt-LT", "lt-u-co-phonebk", "lt-x-lietuva"]) {
+    assertEq("i\u0307".toLocaleUpperCase(locale), "I");
+    assertEq("i\u0307".toLocaleUpperCase([locale]), "I");
+
+    // Additional language tags are ignored.
+    assertEq("i\u0307".toLocaleUpperCase([locale, "und"]), "I");
+    assertEq("i\u0307".toLocaleUpperCase(["und", locale]), "I\u0307");
+}
+
+// Ensure "lti" (Leti) isn't misrecognized as "lt", even though both share the
+// same prefix.
+assertEq("i\u0307".toLocaleUpperCase("lti"), "I\u0307");
+assertEq("i\u0307".toLocaleUpperCase(["lti"]), "I\u0307");
+
+// Language tag is always verified.
+for (let locale of ["no_locale", "lt-invalid_ext", ["no_locale"], ["en", "no_locale"]]) {
+    // Empty input string.
+    assertThrowsInstanceOf(() => "".toLocaleUpperCase(locale), RangeError);
+
+    // Non-empty input string.
+    assertThrowsInstanceOf(() => "a".toLocaleUpperCase(locale), RangeError);
+}
+
+// No locale argument, undefined as locale, and empty array or array-like all
+// return the same result. Testing with "a/A" because it has only simple case
+// mappings.
+assertEq("a".toLocaleUpperCase(), "A");
+assertEq("a".toLocaleUpperCase(undefined), "A");
+assertEq("a".toLocaleUpperCase([]), "A");
+assertEq("a".toLocaleUpperCase({}), "A");
+assertEq("a".toLocaleUpperCase({length: 0}), "A");
+assertEq("a".toLocaleUpperCase({length: -1}), "A");
+
+// Test with incorrect locale type.
+for (let locale of [null, 0, Math.PI, NaN, Infinity, true, false, Symbol()]) {
+    // Empty input string.
+    assertThrowsInstanceOf(() => "".toLocaleUpperCase([locale]), TypeError);
+
+    // Non-empty input string.
+    assertThrowsInstanceOf(() => "a".toLocaleUpperCase([locale]), TypeError);
+}
+
+// Primitives are converted with ToObject and then queried for .length property.
+for (let locale of [null]) {
+    // Empty input string.
+    assertThrowsInstanceOf(() => "".toLocaleUpperCase([locale]), TypeError);
+
+    // Non-empty input string.
+    assertThrowsInstanceOf(() => "a".toLocaleUpperCase([locale]), TypeError);
+}
+// ToLength(ToObject(<primitive>)) returns 0.
+for (let locale of [0, Math.PI, NaN, Infinity, true, false, Symbol()]) {
+    // Empty input string.
+    assertEq("".toLocaleUpperCase(locale), "");
+
+    // Non-empty input string.
+    assertEq("a".toLocaleUpperCase(locale), "A");
+}
+
+if (typeof reportCompare === "function")
+    reportCompare(0, 0, "ok");