Add configurable data-retry.

Add RetryManager and change GsmDataConnectionTracker and
CdmaDataConnectionTracker to use it.

Add TelephonyUtilsTest which tests RetryManager.

2 files changed, 197 insertions, 0 deletions

diff --git a/tests/CoreTests/com/android/internal/telephony/TelephonyTests.java b/tests/CoreTests/com/android/internal/telephony/TelephonyTests.java
index b4fb324..fdfafe1 100644
--- a/tests/CoreTests/com/android/internal/telephony/TelephonyTests.java
+++ b/tests/CoreTests/com/android/internal/telephony/TelephonyTests.java
@@ -47,6 +47,7 @@ public class TelephonyTests {
         suite.addTestSuite(SimUtilsTest.class);
         suite.addTestSuite(SimPhoneBookTest.class);
         suite.addTestSuite(SimSmsTest.class);
+        suite.addTestSuite(TelephonyUtilsTest.class);
 
         return suite;
     }
diff --git a/tests/CoreTests/com/android/internal/telephony/TelephonyUtilsTest.java b/tests/CoreTests/com/android/internal/telephony/TelephonyUtilsTest.java
new file mode 100644
index 0000000..e4cf1e8
--- /dev/null
+++ b/tests/CoreTests/com/android/internal/telephony/TelephonyUtilsTest.java
@@ -0,0 +1,196 @@
+/**
+ * Copyright (C) 2009 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.internal.telephony;
+
+import com.android.internal.telephony.RetryManager;
+import junit.framework.TestCase;
+import android.test.suitebuilder.annotation.SmallTest;
+
+public class TelephonyUtilsTest extends TestCase {
+
+    /**
+     * After first creating the RetryManager
+     * isRetryNeeded should be false and the time 0
+     */
+    @SmallTest
+    public void testRetryManagerEmpty() throws Exception {
+        RetryManager rm = new RetryManager();
+
+        assertEquals(0, rm.getRetryCount());
+        assertFalse(rm.isRetryForever());
+        assertFalse(rm.isRetryNeeded());
+        assertEquals(0, rm.getRetryCount());
+        assertEquals(0, rm.getRetryTimer());
+
+        rm.increaseRetryCount();
+        assertFalse(rm.isRetryForever());
+        assertFalse(rm.isRetryNeeded());
+        assertEquals(0, rm.getRetryCount());
+        assertEquals(0, rm.getRetryTimer());
+
+        rm.setRetryCount(123);
+        assertFalse(rm.isRetryForever());
+        assertFalse(rm.isRetryNeeded());
+        assertEquals(0, rm.getRetryCount());
+        assertEquals(0, rm.getRetryTimer());
+
+        rm.retryForeverUsingLastTimeout();
+        assertTrue(rm.isRetryForever());
+        assertTrue(rm.isRetryNeeded());
+        assertEquals(0, rm.getRetryCount());
+        assertEquals(0, rm.getRetryTimer());
+
+        rm.setRetryCount(2);
+        assertFalse(rm.isRetryForever());
+        assertFalse(rm.isRetryNeeded());
+        assertEquals(0, rm.getRetryCount());
+        assertEquals(0, rm.getRetryTimer());
+    }
+
+    /**
+     * A simple test and that randomization is doing something.
+     */
+    @SmallTest
+    public void testRetryManagerSimplest() throws Exception {
+        RetryManager rm = new RetryManager();
+
+        assertTrue(rm.configure(1, 500, 10));
+        int loops = 10;
+        int count = 0;
+        for (int i = 0; i < loops; i++) {
+            assertTrue(rm.isRetryNeeded());
+            int time = rm.getRetryTimer();
+            assertTrue((time >= 500) && (time < 600));
+            if (time == 500) {
+                count++;
+            }
+        }
+        assertFalse(count == loops);
+        rm.increaseRetryCount();
+        assertFalse(rm.isRetryNeeded());
+        rm.setRetryCount(0);
+        assertTrue(rm.isRetryNeeded());
+    }
+
+    /**
+     * Test multiple values using simple configuration.
+     */
+    @SmallTest
+    public void testRetryManagerSimple() throws Exception {
+        RetryManager rm = new RetryManager();
+
+        assertTrue(rm.configure(3, 1000, 0));
+        assertTrue(rm.isRetryNeeded());
+        assertEquals(1000, rm.getRetryTimer());
+        assertEquals(rm.getRetryTimer(), 1000);
+        rm.increaseRetryCount();
+        assertTrue(rm.isRetryNeeded());
+        assertEquals(1000, rm.getRetryTimer());
+        rm.increaseRetryCount();
+        assertTrue(rm.isRetryNeeded());
+        assertEquals(1000, rm.getRetryTimer());
+        rm.increaseRetryCount();
+        assertFalse(rm.isRetryNeeded());
+        assertEquals(1000, rm.getRetryTimer());
+    }
+
+    /**
+     * Test string configuration, simplest
+     */
+    @SmallTest
+    public void testRetryManageSimpleString() throws Exception {
+        RetryManager rm = new RetryManager();
+
+        assertTrue(rm.configure("101"));
+        assertTrue(rm.isRetryNeeded());
+        assertEquals(101, rm.getRetryTimer());
+        rm.increaseRetryCount();
+        assertFalse(rm.isRetryNeeded());
+    }
+
+    /**
+     * Test string configuration using all options.
+     */
+    @SmallTest
+    public void testRetryManageString() throws Exception {
+        RetryManager rm = new RetryManager();
+        int time;
+
+        assertTrue(rm.configure("max_retries=4,"
+                  + "default_randomization=100,1000, 2000 :200 , 3000"));
+        assertTrue(rm.isRetryNeeded());
+        time = rm.getRetryTimer();
+        assertTrue((time >= 1000) && (time < 1100));
+
+        rm.increaseRetryCount();
+        assertTrue(rm.isRetryNeeded());
+        time = rm.getRetryTimer();
+        assertTrue((time >= 2000) && (time < 2200));
+
+        rm.increaseRetryCount();
+        assertTrue(rm.isRetryNeeded());
+        time = rm.getRetryTimer();
+        assertTrue((time >= 3000) && (time < 3100));
+
+        rm.increaseRetryCount();
+        assertTrue(rm.isRetryNeeded());
+        time = rm.getRetryTimer();
+        assertTrue((time >= 3000) && (time < 3100));
+
+        rm.increaseRetryCount();
+        assertFalse(rm.isRetryNeeded());
+    }
+
+    /**
+     * Test string configuration using all options.
+     */
+    @SmallTest
+    public void testRetryManageForever() throws Exception {
+        RetryManager rm = new RetryManager();
+        int time;
+
+        assertTrue(rm.configure("1000, 2000, 3000"));
+        assertTrue(rm.isRetryNeeded());
+        assertFalse(rm.isRetryForever());
+        assertEquals(0, rm.getRetryCount());
+        assertEquals(1000, rm.getRetryTimer());
+
+        rm.retryForeverUsingLastTimeout();
+        rm.increaseRetryCount();
+        rm.increaseRetryCount();
+        rm.increaseRetryCount();
+        assertTrue(rm.isRetryNeeded());
+        assertTrue(rm.isRetryForever());
+        assertEquals(3, rm.getRetryCount());
+        assertEquals(3000, rm.getRetryTimer());
+
+        rm.setRetryCount(1);
+        assertTrue(rm.isRetryNeeded());
+        assertFalse(rm.isRetryForever());
+        assertEquals(1, rm.getRetryCount());
+        assertEquals(2000, rm.getRetryTimer());
+
+        rm.retryForeverUsingLastTimeout();
+        assertTrue(rm.isRetryNeeded());
+        assertTrue(rm.isRetryForever());
+        rm.resetRetryCount();
+        assertTrue(rm.isRetryNeeded());
+        assertFalse(rm.isRetryForever());
+        assertEquals(0, rm.getRetryCount());
+        assertEquals(1000, rm.getRetryTimer());
+    }
+}