1 files changed, 37 insertions, 0 deletions
diff --git a/js/src/tests/Intl/getCanonicalLocales.js b/js/src/tests/Intl/getCanonicalLocales.js
new file mode 100644
index 000000000..153188160
--- /dev/null
+++ b/js/src/tests/Intl/getCanonicalLocales.js
@@ -0,0 +1,37 @@
+// |reftest| skip-if(!this.hasOwnProperty("Intl"))
+/* 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/. */
+
+// Tests the getCanonicalLocales function with a diverse set of arguments.
+
+let gCL = Intl.getCanonicalLocales;
+
+assertEq(Intl.getCanonicalLocales.length, 1);
+
+assertEqArray(gCL(), []);
+
+assertEqArray(gCL('ab-cd'), ['ab-CD']);
+
+assertEqArray(gCL(['ab-cd']), ['ab-CD']);
+
+assertEqArray(gCL(['ab-cd', 'FF']), ['ab-CD', 'ff']);
+
+assertEqArray(gCL({'a': 0}), []);
+
+assertEqArray(gCL({}), []);
+
+assertEqArray(gCL(['ar-ma-u-ca-islamicc']), ['ar-MA-u-ca-islamicc']);
+
+assertEqArray(gCL(['th-th-u-nu-thai']), ['th-TH-u-nu-thai']);
+
+assertEqArray(gCL(NaN), []);
+
+assertEqArray(gCL(1), []);
+
+Number.prototype[0] = "en-US";
+Number.prototype.length = 1;
+assertEqArray(gCL(NaN), ["en-US"]);
+
+if (typeof reportCompare === 'function')
+    reportCompare(0, 0);