Merge "Raise tz standards for uninitialized devices" am: 325098922c am: d40526cc4c am: aed17a7650 (3c9cf2d6) · Commits · e / os / android_frameworks_base

services/core/java/com/android/server/timezonedetector/TimeZoneDetectorStrategyImpl.java

+1 −12

Original line number	Diff line number	Diff line
		@@ -276,18 +276,6 @@ public final class TimeZoneDetectorStrategyImpl implements TimeZoneDetectorStrat
		return;
		}

		// Special case handling for uninitialized devices. This should only happen once.
		String newZoneId = bestTelephonySuggestion.suggestion.getZoneId();
		if (newZoneId != null && !mCallback.isDeviceTimeZoneInitialized()) {
		String cause = "Device has no time zone set. Attempting to set the device to the best"
		+ " available suggestion."
		+ " bestTelephonySuggestion=" + bestTelephonySuggestion
		+ ", detectionReason=" + detectionReason;
		Slog.i(LOG_TAG, cause);
		setDeviceTimeZoneIfRequired(ORIGIN_TELEPHONY, newZoneId, cause);
		return;
		}

		boolean suggestionGoodEnough =
		bestTelephonySuggestion.score >= TELEPHONY_SCORE_USAGE_THRESHOLD;
		if (!suggestionGoodEnough) {
		@@ -301,6 +289,7 @@ public final class TimeZoneDetectorStrategyImpl implements TimeZoneDetectorStrat

		// Paranoia: Every suggestion above the SCORE_USAGE_THRESHOLD should have a non-null time
		// zone ID.
		String newZoneId = bestTelephonySuggestion.suggestion.getZoneId();
		if (newZoneId == null) {
		Slog.w(LOG_TAG, "Empty zone suggestion scored higher than expected. This is an error:"
		+ " bestTelephonySuggestion=" + bestTelephonySuggestion

services/tests/servicestests/src/com/android/server/timezonedetector/TimeZoneDetectorStrategyImplTest.java

+54 −28

Original line number	Diff line number	Diff line
		@@ -128,19 +128,25 @@ public class TimeZoneDetectorStrategyImplTest {
		}

		@Test
		public void testFirstPlausibleTelephonySuggestionAcceptedWhenTimeZoneUninitialized() {
		public void testTelephonySuggestionsWhenTimeZoneUninitialized() {
		assertTrue(TELEPHONY_SCORE_LOW < TELEPHONY_SCORE_USAGE_THRESHOLD);
		assertTrue(TELEPHONY_SCORE_HIGH >= TELEPHONY_SCORE_USAGE_THRESHOLD);
		SuggestionTestCase testCase = newTestCase(MATCH_TYPE_NETWORK_COUNTRY_ONLY,
		QUALITY_MULTIPLE_ZONES_WITH_DIFFERENT_OFFSETS, TELEPHONY_SCORE_LOW);
		TelephonyTimeZoneSuggestion lowQualitySuggestion =
		testCase.createSuggestion(SLOT_INDEX1, "America/New_York");
		SuggestionTestCase testCase2 = newTestCase(MATCH_TYPE_NETWORK_COUNTRY_ONLY,
		QUALITY_SINGLE_ZONE, TELEPHONY_SCORE_HIGH);

		// The device time zone setting is left uninitialized.
		Script script = new Script()
		.initializeAutoTimeZoneDetection(true);

		// The very first suggestion will be taken.
		// A low quality suggestions will not be taken: The device time zone setting is left
		// uninitialized.
		{
		TelephonyTimeZoneSuggestion lowQualitySuggestion =
		testCase.createSuggestion(SLOT_INDEX1, "America/New_York");

		script.suggestTelephonyTimeZone(lowQualitySuggestion)
		.verifyTimeZoneSetAndReset(lowQualitySuggestion);
		.verifyTimeZoneNotSet();

		// Assert internal service state.
		QualifiedTelephonyTimeZoneSuggestion expectedScoredSuggestion =
		@@ -150,22 +156,42 @@ public class TimeZoneDetectorStrategyImplTest {
		mTimeZoneDetectorStrategy.getLatestTelephonySuggestion(SLOT_INDEX1));
		assertEquals(expectedScoredSuggestion,
		mTimeZoneDetectorStrategy.findBestTelephonySuggestionForTests());
		}

		// A good quality suggestion will be used.
		{
		TelephonyTimeZoneSuggestion goodQualitySuggestion =
		testCase2.createSuggestion(SLOT_INDEX1, "Europe/London");
		script.suggestTelephonyTimeZone(goodQualitySuggestion)
		.verifyTimeZoneSetAndReset(goodQualitySuggestion);

		// Another low quality suggestion will be ignored now that the setting is initialized.
		// Assert internal service state.
		QualifiedTelephonyTimeZoneSuggestion expectedScoredSuggestion =
		new QualifiedTelephonyTimeZoneSuggestion(
		goodQualitySuggestion, testCase2.expectedScore);
		assertEquals(expectedScoredSuggestion,
		mTimeZoneDetectorStrategy.getLatestTelephonySuggestion(SLOT_INDEX1));
		assertEquals(expectedScoredSuggestion,
		mTimeZoneDetectorStrategy.findBestTelephonySuggestionForTests());
		}

		// A low quality suggestion will be accepted, but not used to set the device time zone.
		{
		TelephonyTimeZoneSuggestion lowQualitySuggestion2 =
		testCase.createSuggestion(SLOT_INDEX1, "America/Los_Angeles");
		script.suggestTelephonyTimeZone(lowQualitySuggestion2)
		.verifyTimeZoneNotSet();

		// Assert internal service state.
		QualifiedTelephonyTimeZoneSuggestion expectedScoredSuggestion2 =
		QualifiedTelephonyTimeZoneSuggestion expectedScoredSuggestion =
		new QualifiedTelephonyTimeZoneSuggestion(
		lowQualitySuggestion2, testCase.expectedScore);
		assertEquals(expectedScoredSuggestion2,
		assertEquals(expectedScoredSuggestion,
		mTimeZoneDetectorStrategy.getLatestTelephonySuggestion(SLOT_INDEX1));
		assertEquals(expectedScoredSuggestion2,
		assertEquals(expectedScoredSuggestion,
		mTimeZoneDetectorStrategy.findBestTelephonySuggestionForTests());
		}
		}

		/**
		* Confirms that toggling the auto time zone detection setting has the expected behavior when