1 files changed, 30 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..3422022e2b
--- /dev/null
+++ b/js/src/tests/non262/Date/time-zone-path.js
@@ -0,0 +1,30 @@
+// |reftest| skip-if(xulRuntime.OS=="WINNT"||!xulRuntime.shell)
+
+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("::Europe/London"); // two colons, invalid
+assertEq(timeZoneName(), "Coordinated Universal 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");
+
+setTimeZone("::/this-part-is-ignored/zoneinfo/America/Los_Angeles"); // two colons, invalid
+assertEq(timeZoneName(), "Coordinated Universal Time");
+
+if (typeof reportCompare === "function")
+    reportCompare(true, true);