Make operation counts monotonically increase.

Bug: 5585704
Change-Id: I5247a68acdb209a4ef0f5aac18944595c295e6ca

1 files changed, 16 insertions, 0 deletions

diff --git a/core/tests/coretests/src/android/net/NetworkStatsTest.java b/core/tests/coretests/src/android/net/NetworkStatsTest.java
index b37eb46..098464f 100644
--- a/core/tests/coretests/src/android/net/NetworkStatsTest.java
+++ b/core/tests/coretests/src/android/net/NetworkStatsTest.java
@@ -294,6 +294,22 @@ public class NetworkStatsTest extends TestCase {
         assertValues(after, 1, TEST_IFACE, 101, SET_DEFAULT, 0xF00D, 128L, 8L, 0L, 0L, 0L);
     }
 
+    public void testClone() throws Exception {
+        final NetworkStats original = new NetworkStats(TEST_START, 5)
+                .addValues(TEST_IFACE, 100, SET_DEFAULT, TAG_NONE, 128L, 8L, 0L, 2L, 20L)
+                .addValues(TEST_IFACE2, 100, SET_DEFAULT, TAG_NONE, 512L, 32L, 0L, 0L, 0L);
+
+        // make clone and mutate original
+        final NetworkStats clone = original.clone();
+        original.addValues(TEST_IFACE, 101, SET_DEFAULT, TAG_NONE, 128L, 8L, 0L, 0L, 0L);
+
+        assertEquals(3, original.size());
+        assertEquals(2, clone.size());
+
+        assertEquals(128L + 512L + 128L, original.getTotalBytes());
+        assertEquals(128L + 512L, clone.getTotalBytes());
+    }
+
     private static void assertValues(NetworkStats stats, int index, String iface, int uid, int set,
             int tag, long rxBytes, long rxPackets, long txBytes, long txPackets, long operations) {
         final NetworkStats.Entry entry = stats.getValues(index, null);