commit 83aaa66b469115cfb4e9db39e3534a271812019c
author Muhammad Qureshi <muhammadq@google.com> Tue Apr 21 12:51:36 2020 -0700
committer Muhammad Qureshi <muhammadq@google.com> Wed Apr 22 10:17:14 2020 -0700
tree 4f047e84ff328a9373ae6707448a0b42e21613e3
parent 03d5c91379fad9c8ca2aed35d0dcbdcf87d6d7d5

Add LogEvent::hasAttributionChain()

Optionally, accept a std::pair<int, int>* that is populated with the
starting and ending indices of attribution nodes in FieldValues vector.

Bug: 154286011
Test: bit statsd_test:*
Change-Id: I6f19abea7fbb27712b6c2d5a7679aa4f428c191d

cmds/statsd/tests/LogEvent_test.cpp

diff --git a/cmds/statsd/tests/LogEvent_test.cpp b/cmds/statsd/tests/LogEvent_test.cpp
index bb4578d..e2c2743 100644
--- a/cmds/statsd/tests/LogEvent_test.cpp
+++ b/cmds/statsd/tests/LogEvent_test.cpp
@@ -95,6 +95,7 @@
     EXPECT_EQ(100, logEvent.GetTagId());
     EXPECT_EQ(1000, logEvent.GetUid());
     EXPECT_EQ(1001, logEvent.GetPid());
+    EXPECT_FALSE(logEvent.hasAttributionChain());
 
     const vector<FieldValue>& values = logEvent.getValues();
     EXPECT_EQ(4, values.size());
@@ -143,6 +144,7 @@
     EXPECT_EQ(100, logEvent.GetTagId());
     EXPECT_EQ(1000, logEvent.GetUid());
     EXPECT_EQ(1001, logEvent.GetPid());
+    EXPECT_FALSE(logEvent.hasAttributionChain());
 
     const vector<FieldValue>& values = logEvent.getValues();
     EXPECT_EQ(2, values.size());
@@ -179,6 +181,7 @@
     EXPECT_EQ(100, logEvent.GetTagId());
     EXPECT_EQ(1000, logEvent.GetUid());
     EXPECT_EQ(1001, logEvent.GetPid());
+    EXPECT_FALSE(logEvent.hasAttributionChain());
 
     const vector<FieldValue>& values = logEvent.getValues();
     EXPECT_EQ(1, values.size());
@@ -248,6 +251,11 @@
     const vector<FieldValue>& values = logEvent.getValues();
     EXPECT_EQ(4, values.size());  // 2 per attribution node
 
+    std::pair<int, int> attrIndexRange;
+    EXPECT_TRUE(logEvent.hasAttributionChain(&attrIndexRange));
+    EXPECT_EQ(0, attrIndexRange.first);
+    EXPECT_EQ(3, attrIndexRange.second);
+
     // Check first attribution node
     const FieldValue& uid1Item = values[0];
     Field expectedField = getField(100, {1, 1, 1}, 2, {true, false, false});