Add missing tests for getTimeZoneByID and fromUnixTime with date

test/component_test.js

@@ -596,4 +596,32 @@ suite('Component', function() {
     assert.deepEqual(subject.jCal, fromICAL.jCal);
   });
 
+  test('#getTimeZoneByID', async function() {
+    let icsData = await testSupport.loadSample('timezone_from_file.ics');
+    let vcalendar = new ICAL.Component(ICAL.parse(icsData));
+
+    let zone = vcalendar.getTimeZoneByID("Nowhere/Middle");
+    assert.equal(zone.tzid, "Nowhere/Middle");
+
+    // Zone remains in cache
+    vcalendar.removeSubcomponent("vtimezone");
+    zone = vcalendar.getTimeZoneByID("Nowhere/Middle");
+    assert.equal(zone.tzid, "Nowhere/Middle");
+
+    // Lookup from child component
+    zone = vcalendar.getFirstSubcomponent("vevent").getTimeZoneByID("Nowhere/Middle");
+    assert.equal(zone.tzid, "Nowhere/Middle");
+
+    // Non vcalendar root component
+    let vother = new ICAL.Component(["x-other", [], [["vtimezone", [], []]]]);
+    zone = vother.getFirstSubcomponent().getTimeZoneByID("Nowhere/Middle");
+    assert.isNull(zone);
+
+
+    // Missing timezone definition
+    vcalendar = new ICAL.Component(ICAL.parse(icsData));
+    vcalendar.removeSubcomponent("vtimezone");
+    zone = vcalendar.getTimeZoneByID("Nowhere/Middle");
+    assert.isNull(zone);
+  });
 });

test/time_test.js

@@ -847,6 +847,17 @@ suite('icaltime', function() {
       time.second,
       otherTime.second
     );
+
+    let date = new ICAL.Time({
+      year: 2012,
+      month: 1,
+      day: 5
+    });
+
+    date.fromUnixTime(date.toUnixTime());
+    assert.equal(date.hour, 0);
+    assert.equal(date.minute, 0);
+    assert.equal(date.second, 0);
   });
 
   suite('#adjust', function() {