optimize MCC table

Replace a table of objects that was created at boot
in a costly manner, with a pre-generated table of
more densely formatted numerical data.

Based on data from runhat on the phone process,
this looks to shrink the memory footprint from about
16kB to less then 2kB.

Addresses http://buganizer/issue?id=874072

Change-Id: I5a7b9d7de4c9b9a0360e8370252582969fbd8d4f

1 files changed, 87 insertions, 0 deletions

diff --git a/tests/AndroidTests/src/com/android/unit_tests/MccTableTest.java b/tests/AndroidTests/src/com/android/unit_tests/MccTableTest.java
new file mode 100644
index 0000000..875376a
--- /dev/null
+++ b/tests/AndroidTests/src/com/android/unit_tests/MccTableTest.java
@@ -0,0 +1,87 @@
+/*
+ * Copyright (C) 2006 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.unit_tests;
+
+import com.android.internal.telephony.gsm.MccTable;
+
+import android.test.AndroidTestCase;
+import android.test.suitebuilder.annotation.SmallTest;
+
+import android.util.Log;
+
+public class MccTableTest extends AndroidTestCase {
+    private final static String LOG_TAG = "GSM";
+
+    @SmallTest
+    public void testTimeZone() throws Exception {
+        assertEquals(MccTable.defaultTimeZoneForMcc(208), "Europe/Paris");
+        assertEquals(MccTable.defaultTimeZoneForMcc(232), "Europe/Vienna");
+        assertEquals(MccTable.defaultTimeZoneForMcc(655), "Africa/Johannesburg");
+        assertEquals(MccTable.defaultTimeZoneForMcc(440), "Asia/Tokyo");
+        assertEquals(MccTable.defaultTimeZoneForMcc(441), "Asia/Tokyo");
+        assertEquals(MccTable.defaultTimeZoneForMcc(525), "Singapore");
+        assertEquals(MccTable.defaultTimeZoneForMcc(240), null);  // tz not defined, hence default
+        assertEquals(MccTable.defaultTimeZoneForMcc(0), null);    // mcc not defined, hence default
+        assertEquals(MccTable.defaultTimeZoneForMcc(2000), null); // mcc not defined, hence default
+    }
+
+    @SmallTest
+    public void testCountryCode() throws Exception {
+        assertEquals(MccTable.countryCodeForMcc(270), "lu");
+        assertEquals(MccTable.countryCodeForMcc(202), "gr");
+        assertEquals(MccTable.countryCodeForMcc(750), "fk");
+        assertEquals(MccTable.countryCodeForMcc(646), "mg");
+        assertEquals(MccTable.countryCodeForMcc(314), "us");
+        assertEquals(MccTable.countryCodeForMcc(300), "");  // mcc not defined, hence default
+        assertEquals(MccTable.countryCodeForMcc(0), "");    // mcc not defined, hence default
+        assertEquals(MccTable.countryCodeForMcc(2000), ""); // mcc not defined, hence default
+    }
+
+    @SmallTest
+    public void testLang() throws Exception {
+        assertEquals(MccTable.defaultLanguageForMcc(311), "en");
+        assertEquals(MccTable.defaultLanguageForMcc(232), "de");
+        assertEquals(MccTable.defaultLanguageForMcc(230), "cs");
+        assertEquals(MccTable.defaultLanguageForMcc(204), "nl");
+        assertEquals(MccTable.defaultLanguageForMcc(274), null);  // lang not defined, hence default
+        assertEquals(MccTable.defaultLanguageForMcc(0), null);    // mcc not defined, hence default
+        assertEquals(MccTable.defaultLanguageForMcc(2000), null); // mcc not defined, hence default
+    }
+
+    @SmallTest
+    public void testSmDigits() throws Exception {
+        assertEquals(MccTable.smallestDigitsMccForMnc(312), 3);
+        assertEquals(MccTable.smallestDigitsMccForMnc(430), 2);
+        assertEquals(MccTable.smallestDigitsMccForMnc(365), 3);
+        assertEquals(MccTable.smallestDigitsMccForMnc(536), 2);
+        assertEquals(MccTable.smallestDigitsMccForMnc(352), 2);  // sd not defined, hence default
+        assertEquals(MccTable.smallestDigitsMccForMnc(0), 2);    // mcc not defined, hence default
+        assertEquals(MccTable.smallestDigitsMccForMnc(2000), 2); // mcc not defined, hence default
+    }
+
+    @SmallTest
+    public void testWifi() throws Exception {
+        assertEquals(MccTable.wifiChannelsForMcc(262), 13);
+        assertEquals(MccTable.wifiChannelsForMcc(234), 13);
+        assertEquals(MccTable.wifiChannelsForMcc(505), 11);
+        assertEquals(MccTable.wifiChannelsForMcc(313), 11);
+        assertEquals(MccTable.wifiChannelsForMcc(330), 0);  // wifi not defined, hence default
+        assertEquals(MccTable.wifiChannelsForMcc(0), 0);    // mcc not defined, hence default
+        assertEquals(MccTable.wifiChannelsForMcc(2000), 0); // mcc not defined, hence default
+
+    }
+}