1 files changed, 85 insertions, 0 deletions
diff --git a/js/src/tests/non262/Intl/DateTimeFormat/options-property-accesses.js b/js/src/tests/non262/Intl/DateTimeFormat/options-property-accesses.js
new file mode 100644
index 0000000000..72e896fcae
--- /dev/null
+++ b/js/src/tests/non262/Intl/DateTimeFormat/options-property-accesses.js
@@ -0,0 +1,85 @@
+// |reftest| skip-if(!this.hasOwnProperty("Intl"))
+
+if (typeof getBuildConfiguration === "undefined") {
+  var getBuildConfiguration = SpecialPowers.Cu.getJSTestingFunctions().getBuildConfiguration;
+}
+
+var isNightly = !getBuildConfiguration().release_or_beta;
+
+var log;
+var proxy = new Proxy({
+    year: "numeric",
+    hour: "numeric",
+}, new Proxy({
+    get(t, pk, r) {
+        log.push(pk);
+        return Reflect.get(t, pk, r);
+    }
+}, {
+    get(t, pk, r) {
+        assertEq(pk, "get");
+        return Reflect.get(t, pk, r);
+    }
+}));
+
+var dayPeriod = isNightly ? ["dayPeriod"] : [];
+
+var constructorAccesses = [
+    // ToDateTimeOptions(options, "any", "date").
+    "weekday", "year", "month", "day",
+    ...dayPeriod, "hour", "minute", "second", "fractionalSecondDigits",
+    "dateStyle", "timeStyle",
+
+    // InitializeDateTimeFormat
+    "localeMatcher", "calendar", "numberingSystem", "hour12", "hourCycle", "timeZone",
+
+    // Table 5: Components of date and time formats
+    "weekday", "era", "year", "month", "day", ...dayPeriod, "hour", "minute", "second",
+    "fractionalSecondDigits", "timeZoneName",
+
+    // InitializeDateTimeFormat
+    "formatMatcher",
+    "dateStyle", "timeStyle",
+];
+
+log = [];
+new Intl.DateTimeFormat(undefined, proxy);
+
+assertEqArray(log, constructorAccesses);
+
+log = [];
+new Date().toLocaleString(undefined, proxy);
+
+assertEqArray(log, [
+    // ToDateTimeOptions(options, "any", "all").
+    "weekday", "year", "month", "day",
+    ...dayPeriod, "hour", "minute", "second", "fractionalSecondDigits",
+    "dateStyle", "timeStyle",
+
+    ...constructorAccesses
+]);
+
+log = [];
+new Date().toLocaleDateString(undefined, proxy);
+
+assertEqArray(log, [
+    // ToDateTimeOptions(options, "date", "date").
+    "weekday", "year", "month", "day",
+    "dateStyle", "timeStyle",
+
+    ...constructorAccesses
+]);
+
+log = [];
+new Date().toLocaleTimeString(undefined, proxy);
+
+assertEqArray(log, [
+    // ToDateTimeOptions(options, "time", "time").
+    ...dayPeriod, "hour", "minute", "second", "fractionalSecondDigits",
+    "dateStyle", "timeStyle",
+
+    ...constructorAccesses
+]);
+
+if (typeof reportCompare === "function")
+    reportCompare(0, 0);