[WifiScoreReport] Add dumpsys for scoring data

Add a dumpsys handler to capture the data used for calculating
wifi scores.

The logged data is limited to about 12 hours, to conserve memory.

Timestamp formatting is consistent with (most) of the other
timestamps used in bugreports.

Bug: 62448744
Test: manual, new unit tests
Change-Id: Iba3f3dc4911e7939a5afacb5902f425415bbc5f0

1 files changed, 45 insertions, 1 deletions

diff --git a/tests/wifitests/src/com/android/server/wifi/WifiScoreReportTest.java b/tests/wifitests/src/com/android/server/wifi/WifiScoreReportTest.java
index 1f5927d95..24d3afa18 100644
--- a/tests/wifitests/src/com/android/server/wifi/WifiScoreReportTest.java
+++ b/tests/wifitests/src/com/android/server/wifi/WifiScoreReportTest.java
@@ -17,8 +17,10 @@
 package com.android.server.wifi;
 
 import static org.junit.Assert.assertTrue;
+import static org.mockito.ArgumentMatchers.anyString;
 import static org.mockito.Mockito.anyInt;
 import static org.mockito.Mockito.atLeast;
+import static org.mockito.Mockito.atMost;
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
 
@@ -36,6 +38,7 @@ import org.junit.Test;
 import org.mockito.Mock;
 import org.mockito.MockitoAnnotations;
 
+import java.io.PrintWriter;
 import java.util.Arrays;
 
 /**
@@ -55,6 +58,7 @@ public class WifiScoreReportTest {
     @Mock Resources mResources;
     @Mock WifiConfigManager mWifiConfigManager;
     @Mock WifiMetrics mWifiMetrics;
+    @Mock PrintWriter mPrintWriter;
 
     /**
      * Sets up resource values for testing
@@ -118,7 +122,7 @@ public class WifiScoreReportTest {
         when(mWifiConfigManager.getScanDetailCacheForNetwork(anyInt()))
                 .thenReturn(mScanDetailCache);
         when(mContext.getResources()).thenReturn(mResources);
-        mWifiScoreReport = new WifiScoreReport(mContext, mWifiConfigManager);
+        mWifiScoreReport = new WifiScoreReport(mContext, mWifiConfigManager, new Clock());
     }
 
     /**
@@ -243,4 +247,44 @@ public class WifiScoreReportTest {
         assertTrue(score > CELLULAR_THRESHOLD_SCORE);
     }
 
+    /**
+     * Test data logging
+     */
+    @Test
+    public void testDataLogging() throws Exception {
+        mAggr = 1;
+        for (int i = 0; i < 10; i++) {
+            mWifiInfo.setRssi(-65 + i);
+            mWifiInfo.setLinkSpeed(300);
+            mWifiInfo.setFrequency(5220);
+            mWifiInfo.txSuccessRate = 0.1 + i;
+            mWifiInfo.txRetriesRate = 0.2 + i;
+            mWifiInfo.txBadRate = 0.01 * i;
+            mWifiInfo.rxSuccessRate = 0.3 + i;
+            mWifiScoreReport.calculateAndReportScore(mWifiInfo, mNetworkAgent, mAggr, mWifiMetrics);
+        }
+        mWifiScoreReport.dump(null, mPrintWriter, null);
+        verify(mPrintWriter, atLeast(11)).println(anyString());
+    }
+
+    /**
+     *  Test data logging limit
+     *  <p>
+     *  Check that only a bounded amount of data is collected for dumpsys report
+     */
+    @Test
+    public void testDataLoggingLimit() throws Exception {
+        for (int i = 0; i < 14500; i++) {
+            mWifiInfo.setRssi(-65 + i % 20);
+            mWifiInfo.setLinkSpeed(300);
+            mWifiInfo.setFrequency(5220);
+            mWifiInfo.txSuccessRate = 0.1 + i % 100;
+            mWifiInfo.txRetriesRate = 0.2 + i % 100;
+            mWifiInfo.txBadRate = 0.0001 * i;
+            mWifiInfo.rxSuccessRate = 0.3 + i % 200;
+            mWifiScoreReport.calculateAndReportScore(mWifiInfo, mNetworkAgent, mAggr, mWifiMetrics);
+        }
+        mWifiScoreReport.dump(null, mPrintWriter, null);
+        verify(mPrintWriter, atMost(14401)).println(anyString());
+    }
 }