1 files changed, 56 insertions, 0 deletions
diff --git a/js/src/tests/non262/Date/time-zone-path.js b/js/src/tests/non262/Date/time-zone-path.js
new file mode 100644
index 0000000000..0181093bac
--- /dev/null
+++ b/js/src/tests/non262/Date/time-zone-path.js
@@ -0,0 +1,56 @@
+// |reftest| skip-if(xulRuntime.OS=="WINNT"||!xulRuntime.shell||!this.hasOwnProperty("Intl"))
+
+assertEq(/^(PST|PDT)$/.test(getTimeZone()), true,
+         "The default time zone is set to PST8PDT for all jstests (when run in the shell)");
+
+function timeZoneName() {
+    var dtf = new Intl.DateTimeFormat("en-US", {timeZoneName: "long"});
+    return dtf.formatToParts(Date.UTC(2017, 2, 31, 12, 0, 0)).filter(x => x.type === "timeZoneName")[0].value;
+}
+
+setTimeZone("Europe/Paris");
+assertEq(timeZoneName(), "Central European Summer Time");
+
+setTimeZone(":Europe/Helsinki");
+assertEq(timeZoneName(), "Eastern European Summer Time");
+
+setTimeZone("/zoneinfo/America/Chicago");
+assertEq(timeZoneName(), "Central Daylight Time");
+
+setTimeZone("/this-part-is-ignored/zoneinfo/America/Chicago");
+assertEq(timeZoneName(), "Central Daylight Time");
+
+setTimeZone(":/this-part-is-ignored/zoneinfo/America/Phoenix");
+assertEq(timeZoneName(), "Mountain Standard Time");
+
+const invalidTimeZones = [
+    // Non-existent timezone
+    "foo",
+    "/zoneinfo/foo",
+    "/zoneinfo/",
+
+    // Not capitalized
+    "america/chicago",
+
+    // No leading /
+    "zoneinfo/America/Chicago",
+    "foo/zoneinfo/America/Chicago",
+    ":zoneinfo/America/Chicago",
+    ":foo/zoneinfo/America/Chicago",
+
+    // Path without "/zoneinfo/"
+    "/foo/America/Chicago",
+    ":/foo/America/Chicago",
+
+    // Two colons
+    "::Europe/London",
+    "::/zoneinfo/America/Los_Angeles",
+    "::/this-part-is-ignored/zoneinfo/America/Los_Angeles",
+];
+
+for (const invalid of invalidTimeZones) {
+    assertThrowsInstanceOf(() => setTimeZone(invalid), Error);
+}
+
+if (typeof reportCompare === "function")
+    reportCompare(true, true);