statsd unit test and benchmark refactor

Abstract test utilities into two new functions: writeAttribution and
parseStatsEventToLogEvent

Bug: 149590301
Test: bit statsd_test:*
&& bit statsd_benchmark:*

Change-Id: I5f77646b6d2d828344b8b6de8777a60d98f96d58
diff --git a/cmds/statsd/benchmark/filter_value_benchmark.cpp b/cmds/statsd/benchmark/filter_value_benchmark.cpp
index 28bf21a..743ccc4 100644
--- a/cmds/statsd/benchmark/filter_value_benchmark.cpp
+++ b/cmds/statsd/benchmark/filter_value_benchmark.cpp
@@ -14,12 +14,14 @@
  * limitations under the License.
  */
 #include <vector>
-#include "benchmark/benchmark.h"
+
 #include "FieldValue.h"
 #include "HashableDimensionKey.h"
+#include "benchmark/benchmark.h"
 #include "logd/LogEvent.h"
-#include "stats_log_util.h"
+#include "metric_util.h"
 #include "stats_event.h"
+#include "stats_log_util.h"
 
 namespace android {
 namespace os {
@@ -34,24 +36,13 @@
 
     std::vector<int> attributionUids = {100, 100};
     std::vector<string> attributionTags = {"LOCATION", "LOCATION"};
+    writeAttribution(statsEvent, attributionUids, attributionTags);
 
-    vector<const char*> cTags(attributionTags.size());
-    for (int i = 0; i < cTags.size(); i++) {
-        cTags[i] = attributionTags[i].c_str();
-    }
-
-    AStatsEvent_writeAttributionChain(statsEvent,
-                                      reinterpret_cast<const uint32_t*>(attributionUids.data()),
-                                      cTags.data(), attributionUids.size());
     AStatsEvent_writeFloat(statsEvent, 3.2f);
     AStatsEvent_writeString(statsEvent, "LOCATION");
     AStatsEvent_writeInt64(statsEvent, 990);
-    AStatsEvent_build(statsEvent);
 
-    size_t size;
-    uint8_t* buf = AStatsEvent_getBuffer(statsEvent, &size);
-    event->parseBuffer(buf, size);
-    AStatsEvent_release(statsEvent);
+    parseStatsEventToLogEvent(statsEvent, event);
 
     field_matcher->set_field(1);
     auto child = field_matcher->add_child();
diff --git a/cmds/statsd/benchmark/get_dimensions_for_condition_benchmark.cpp b/cmds/statsd/benchmark/get_dimensions_for_condition_benchmark.cpp
index c7d01cc..7a45565 100644
--- a/cmds/statsd/benchmark/get_dimensions_for_condition_benchmark.cpp
+++ b/cmds/statsd/benchmark/get_dimensions_for_condition_benchmark.cpp
@@ -14,12 +14,14 @@
  * limitations under the License.
  */
 #include <vector>
-#include "benchmark/benchmark.h"
+
 #include "FieldValue.h"
 #include "HashableDimensionKey.h"
+#include "benchmark/benchmark.h"
 #include "logd/LogEvent.h"
-#include "stats_log_util.h"
+#include "metric_util.h"
 #include "stats_event.h"
+#include "stats_log_util.h"
 
 namespace android {
 namespace os {
@@ -34,24 +36,13 @@
 
     std::vector<int> attributionUids = {100, 100};
     std::vector<string> attributionTags = {"LOCATION", "LOCATION"};
+    writeAttribution(statsEvent, attributionUids, attributionTags);
 
-    vector<const char*> cTags(attributionTags.size());
-    for (int i = 0; i < cTags.size(); i++) {
-        cTags[i] = attributionTags[i].c_str();
-    }
-
-    AStatsEvent_writeAttributionChain(statsEvent,
-                                      reinterpret_cast<const uint32_t*>(attributionUids.data()),
-                                      cTags.data(), attributionUids.size());
     AStatsEvent_writeFloat(statsEvent, 3.2f);
     AStatsEvent_writeString(statsEvent, "LOCATION");
     AStatsEvent_writeInt64(statsEvent, 990);
-    AStatsEvent_build(statsEvent);
 
-    size_t size;
-    uint8_t* buf = AStatsEvent_getBuffer(statsEvent, &size);
-    event->parseBuffer(buf, size);
-    AStatsEvent_release(statsEvent);
+    parseStatsEventToLogEvent(statsEvent, event);
 
     link->conditionId = 1;
 
diff --git a/cmds/statsd/benchmark/metric_util.cpp b/cmds/statsd/benchmark/metric_util.cpp
index 482d66f..89fd3d9 100644
--- a/cmds/statsd/benchmark/metric_util.cpp
+++ b/cmds/statsd/benchmark/metric_util.cpp
@@ -247,21 +247,37 @@
     return dimensions;
 }
 
+void writeAttribution(AStatsEvent* statsEvent, const vector<int>& attributionUids,
+                      const vector<string>& attributionTags) {
+    vector<const char*> cTags(attributionTags.size());
+    for (int i = 0; i < cTags.size(); i++) {
+        cTags[i] = attributionTags[i].c_str();
+    }
+
+    AStatsEvent_writeAttributionChain(statsEvent,
+                                      reinterpret_cast<const uint32_t*>(attributionUids.data()),
+                                      cTags.data(), attributionUids.size());
+}
+
+void parseStatsEventToLogEvent(AStatsEvent* statsEvent, LogEvent* logEvent) {
+    AStatsEvent_build(statsEvent);
+
+    size_t size;
+    uint8_t* buf = AStatsEvent_getBuffer(statsEvent, &size);
+    logEvent->parseBuffer(buf, size);
+
+    AStatsEvent_release(statsEvent);
+}
+
 std::unique_ptr<LogEvent> CreateScreenStateChangedEvent(
         uint64_t timestampNs, const android::view::DisplayStateEnum state) {
     AStatsEvent* statsEvent = AStatsEvent_obtain();
     AStatsEvent_setAtomId(statsEvent, util::SCREEN_STATE_CHANGED);
     AStatsEvent_overwriteTimestamp(statsEvent, timestampNs);
-
     AStatsEvent_writeInt32(statsEvent, state);
-    AStatsEvent_build(statsEvent);
-
-    size_t size;
-    uint8_t* buf = AStatsEvent_getBuffer(statsEvent, &size);
 
     std::unique_ptr<LogEvent> logEvent = std::make_unique<LogEvent>(/*uid=*/0, /*pid=*/0);
-    logEvent->parseBuffer(buf, size);
-    AStatsEvent_release(statsEvent);
+    parseStatsEventToLogEvent(statsEvent, logEvent.get());
     return logEvent;
 }
 
@@ -272,24 +288,12 @@
     AStatsEvent_setAtomId(statsEvent, util::SCHEDULED_JOB_STATE_CHANGED);
     AStatsEvent_overwriteTimestamp(statsEvent, timestampNs);
 
-    vector<const char*> cTags(attributionTags.size());
-    for (int i = 0; i < cTags.size(); i++) {
-        cTags[i] = attributionTags[i].c_str();
-    }
-
-    AStatsEvent_writeAttributionChain(statsEvent,
-                                      reinterpret_cast<const uint32_t*>(attributionUids.data()),
-                                      cTags.data(), attributionUids.size());
+    writeAttribution(statsEvent, attributionUids, attributionTags);
     AStatsEvent_writeString(statsEvent, jobName.c_str());
     AStatsEvent_writeInt32(statsEvent, state);
-    AStatsEvent_build(statsEvent);
-
-    size_t size;
-    uint8_t* buf = AStatsEvent_getBuffer(statsEvent, &size);
 
     std::unique_ptr<LogEvent> logEvent = std::make_unique<LogEvent>(/*uid=*/0, /*pid=*/0);
-    logEvent->parseBuffer(buf, size);
-    AStatsEvent_release(statsEvent);
+    parseStatsEventToLogEvent(statsEvent, logEvent.get());
     return logEvent;
 }
 
@@ -319,24 +323,12 @@
     AStatsEvent_setAtomId(statsEvent, util::SYNC_STATE_CHANGED);
     AStatsEvent_overwriteTimestamp(statsEvent, timestampNs);
 
-    vector<const char*> cTags(attributionTags.size());
-    for (int i = 0; i < cTags.size(); i++) {
-        cTags[i] = attributionTags[i].c_str();
-    }
-
-    AStatsEvent_writeAttributionChain(statsEvent,
-                                      reinterpret_cast<const uint32_t*>(attributionUids.data()),
-                                      cTags.data(), attributionUids.size());
+    writeAttribution(statsEvent, attributionUids, attributionTags);
     AStatsEvent_writeString(statsEvent, name.c_str());
     AStatsEvent_writeInt32(statsEvent, state);
-    AStatsEvent_build(statsEvent);
-
-    size_t size;
-    uint8_t* buf = AStatsEvent_getBuffer(statsEvent, &size);
 
     std::unique_ptr<LogEvent> logEvent = std::make_unique<LogEvent>(/*uid=*/0, /*pid=*/0);
-    logEvent->parseBuffer(buf, size);
-    AStatsEvent_release(statsEvent);
+    parseStatsEventToLogEvent(statsEvent, logEvent.get());
     return logEvent;
 }
 
diff --git a/cmds/statsd/benchmark/metric_util.h b/cmds/statsd/benchmark/metric_util.h
index c5fcf7c..3efaa85 100644
--- a/cmds/statsd/benchmark/metric_util.h
+++ b/cmds/statsd/benchmark/metric_util.h
@@ -18,6 +18,7 @@
 #include "frameworks/base/cmds/statsd/src/statsd_config.pb.h"
 #include "src/StatsLogProcessor.h"
 #include "src/logd/LogEvent.h"
+#include "stats_event.h"
 #include "statslog.h"
 
 namespace android {
@@ -92,6 +93,11 @@
 FieldMatcher CreateAttributionUidDimensions(const int atomId,
                                             const std::vector<Position>& positions);
 
+void writeAttribution(AStatsEvent* statsEvent, const vector<int>& attributionUids,
+                      const vector<string>& attributionTags);
+
+void parseStatsEventToLogEvent(AStatsEvent* statsEvent, LogEvent* logEvent);
+
 // Create log event for screen state changed.
 std::unique_ptr<LogEvent> CreateScreenStateChangedEvent(
         uint64_t timestampNs, const android::view::DisplayStateEnum state);
diff --git a/cmds/statsd/tests/FieldValue_test.cpp b/cmds/statsd/tests/FieldValue_test.cpp
index 0bf24f1..f5ba8fd 100644
--- a/cmds/statsd/tests/FieldValue_test.cpp
+++ b/cmds/statsd/tests/FieldValue_test.cpp
@@ -41,22 +41,10 @@
     AStatsEvent_setAtomId(statsEvent, atomId);
     AStatsEvent_overwriteTimestamp(statsEvent, timestamp);
 
-    vector<const char*> cTags(attributionTags.size());
-    for (int i = 0; i < cTags.size(); i++) {
-        cTags[i] = attributionTags[i].c_str();
-    }
-
-    AStatsEvent_writeAttributionChain(statsEvent,
-                                      reinterpret_cast<const uint32_t*>(attributionUids.data()),
-                                      cTags.data(), attributionUids.size());
+    writeAttribution(statsEvent, attributionUids, attributionTags);
     AStatsEvent_writeString(statsEvent, name.c_str());
-    AStatsEvent_build(statsEvent);
 
-    size_t size;
-    uint8_t* buf = AStatsEvent_getBuffer(statsEvent, &size);
-    logEvent->parseBuffer(buf, size);
-
-    AStatsEvent_release(statsEvent);
+    parseStatsEventToLogEvent(statsEvent, logEvent);
 }
 
 void makeLogEvent(LogEvent* logEvent, const int32_t atomId, const int64_t timestamp,
@@ -66,22 +54,10 @@
     AStatsEvent_setAtomId(statsEvent, atomId);
     AStatsEvent_overwriteTimestamp(statsEvent, timestamp);
 
-    vector<const char*> cTags(attributionTags.size());
-    for (int i = 0; i < cTags.size(); i++) {
-        cTags[i] = attributionTags[i].c_str();
-    }
-
-    AStatsEvent_writeAttributionChain(statsEvent,
-                                      reinterpret_cast<const uint32_t*>(attributionUids.data()),
-                                      cTags.data(), attributionUids.size());
+    writeAttribution(statsEvent, attributionUids, attributionTags);
     AStatsEvent_writeInt32(statsEvent, value);
-    AStatsEvent_build(statsEvent);
 
-    size_t size;
-    uint8_t* buf = AStatsEvent_getBuffer(statsEvent, &size);
-    logEvent->parseBuffer(buf, size);
-
-    AStatsEvent_release(statsEvent);
+    parseStatsEventToLogEvent(statsEvent, logEvent);
 }
 }  // anonymous namespace
 
diff --git a/cmds/statsd/tests/LogEntryMatcher_test.cpp b/cmds/statsd/tests/LogEntryMatcher_test.cpp
index 6f4c8e4..9cdf582 100644
--- a/cmds/statsd/tests/LogEntryMatcher_test.cpp
+++ b/cmds/statsd/tests/LogEntryMatcher_test.cpp
@@ -48,15 +48,9 @@
     AStatsEvent* statsEvent = AStatsEvent_obtain();
     AStatsEvent_setAtomId(statsEvent, atomId);
     AStatsEvent_overwriteTimestamp(statsEvent, timestamp);
-
     AStatsEvent_writeInt32(statsEvent, value);
-    AStatsEvent_build(statsEvent);
 
-    size_t size;
-    uint8_t* buf = AStatsEvent_getBuffer(statsEvent, &size);
-    logEvent->parseBuffer(buf, size);
-
-    AStatsEvent_release(statsEvent);
+    parseStatsEventToLogEvent(statsEvent, logEvent);
 }
 
 void makeFloatLogEvent(LogEvent* logEvent, const int32_t atomId, const int64_t timestamp,
@@ -64,15 +58,9 @@
     AStatsEvent* statsEvent = AStatsEvent_obtain();
     AStatsEvent_setAtomId(statsEvent, atomId);
     AStatsEvent_overwriteTimestamp(statsEvent, timestamp);
-
     AStatsEvent_writeFloat(statsEvent, floatValue);
-    AStatsEvent_build(statsEvent);
 
-    size_t size;
-    uint8_t* buf = AStatsEvent_getBuffer(statsEvent, &size);
-    logEvent->parseBuffer(buf, size);
-
-    AStatsEvent_release(statsEvent);
+    parseStatsEventToLogEvent(statsEvent, logEvent);
 }
 
 void makeStringLogEvent(LogEvent* logEvent, const int32_t atomId, const int64_t timestamp,
@@ -80,15 +68,9 @@
     AStatsEvent* statsEvent = AStatsEvent_obtain();
     AStatsEvent_setAtomId(statsEvent, atomId);
     AStatsEvent_overwriteTimestamp(statsEvent, timestamp);
-
     AStatsEvent_writeString(statsEvent, name.c_str());
-    AStatsEvent_build(statsEvent);
 
-    size_t size;
-    uint8_t* buf = AStatsEvent_getBuffer(statsEvent, &size);
-    logEvent->parseBuffer(buf, size);
-
-    AStatsEvent_release(statsEvent);
+    parseStatsEventToLogEvent(statsEvent, logEvent);
 }
 
 void makeIntStringLogEvent(LogEvent* logEvent, const int32_t atomId, const int64_t timestamp,
@@ -99,13 +81,8 @@
 
     AStatsEvent_writeInt32(statsEvent, value);
     AStatsEvent_writeString(statsEvent, name.c_str());
-    AStatsEvent_build(statsEvent);
 
-    size_t size;
-    uint8_t* buf = AStatsEvent_getBuffer(statsEvent, &size);
-    logEvent->parseBuffer(buf, size);
-
-    AStatsEvent_release(statsEvent);
+    parseStatsEventToLogEvent(statsEvent, logEvent);
 }
 
 void makeAttributionLogEvent(LogEvent* logEvent, const int32_t atomId, const int64_t timestamp,
@@ -115,22 +92,10 @@
     AStatsEvent_setAtomId(statsEvent, atomId);
     AStatsEvent_overwriteTimestamp(statsEvent, timestamp);
 
-    vector<const char*> cTags(attributionTags.size());
-    for (int i = 0; i < cTags.size(); i++) {
-        cTags[i] = attributionTags[i].c_str();
-    }
-
-    AStatsEvent_writeAttributionChain(statsEvent,
-                                      reinterpret_cast<const uint32_t*>(attributionUids.data()),
-                                      cTags.data(), attributionUids.size());
+    writeAttribution(statsEvent, attributionUids, attributionTags);
     AStatsEvent_writeString(statsEvent, name.c_str());
-    AStatsEvent_build(statsEvent);
 
-    size_t size;
-    uint8_t* buf = AStatsEvent_getBuffer(statsEvent, &size);
-    logEvent->parseBuffer(buf, size);
-
-    AStatsEvent_release(statsEvent);
+    parseStatsEventToLogEvent(statsEvent, logEvent);
 }
 
 void makeBoolLogEvent(LogEvent* logEvent, const int32_t atomId, const int64_t timestamp,
@@ -141,13 +106,8 @@
 
     AStatsEvent_writeBool(statsEvent, bool1);
     AStatsEvent_writeBool(statsEvent, bool2);
-    AStatsEvent_build(statsEvent);
 
-    size_t size;
-    uint8_t* buf = AStatsEvent_getBuffer(statsEvent, &size);
-    logEvent->parseBuffer(buf, size);
-
-    AStatsEvent_release(statsEvent);
+    parseStatsEventToLogEvent(statsEvent, logEvent);
 }
 
 }  // anonymous namespace
diff --git a/cmds/statsd/tests/condition/SimpleConditionTracker_test.cpp b/cmds/statsd/tests/condition/SimpleConditionTracker_test.cpp
index 7febb35..ba5b032 100644
--- a/cmds/statsd/tests/condition/SimpleConditionTracker_test.cpp
+++ b/cmds/statsd/tests/condition/SimpleConditionTracker_test.cpp
@@ -67,22 +67,12 @@
     AStatsEvent_overwriteTimestamp(statsEvent, timestamp);
 
     vector<std::string> tags(uids.size()); // vector of empty strings
-    vector<const char*> cTags(uids.size());
-    for (int i = 0; i < cTags.size(); i++) {
-        cTags[i] = tags[i].c_str();
-    }
-    AStatsEvent_writeAttributionChain(statsEvent, reinterpret_cast<const uint32_t*>(uids.data()),
-                                      cTags.data(), uids.size());
+    writeAttribution(statsEvent, uids, tags);
 
     AStatsEvent_writeString(statsEvent, wl.c_str());
     AStatsEvent_writeInt32(statsEvent, acquire);
-    AStatsEvent_build(statsEvent);
 
-    size_t size;
-    uint8_t* buf = AStatsEvent_getBuffer(statsEvent, &size);
-    logEvent->parseBuffer(buf, size);
-
-    AStatsEvent_release(statsEvent);
+    parseStatsEventToLogEvent(statsEvent, logEvent);
 }
 
 } // anonymous namespace
diff --git a/cmds/statsd/tests/e2e/GaugeMetric_e2e_push_test.cpp b/cmds/statsd/tests/e2e/GaugeMetric_e2e_push_test.cpp
index 81e1c05..60403f2 100644
--- a/cmds/statsd/tests/e2e/GaugeMetric_e2e_push_test.cpp
+++ b/cmds/statsd/tests/e2e/GaugeMetric_e2e_push_test.cpp
@@ -84,14 +84,9 @@
     AStatsEvent_writeString(statsEvent, calling_pkg_name.c_str());
     AStatsEvent_writeInt32(statsEvent, is_instant_app);
     AStatsEvent_writeInt32(statsEvent, activity_start_msec);
-    AStatsEvent_build(statsEvent);
-
-    size_t size;
-    uint8_t* buf = AStatsEvent_getBuffer(statsEvent, &size);
 
     std::unique_ptr<LogEvent> logEvent = std::make_unique<LogEvent>(/*uid=*/0, /*pid=*/0);
-    logEvent->parseBuffer(buf, size);
-    AStatsEvent_release(statsEvent);
+    parseStatsEventToLogEvent(statsEvent, logEvent.get());
     return logEvent;
 }
 
diff --git a/cmds/statsd/tests/external/StatsPuller_test.cpp b/cmds/statsd/tests/external/StatsPuller_test.cpp
index e8200d5..5043358 100644
--- a/cmds/statsd/tests/external/StatsPuller_test.cpp
+++ b/cmds/statsd/tests/external/StatsPuller_test.cpp
@@ -64,16 +64,10 @@
     AStatsEvent* statsEvent = AStatsEvent_obtain();
     AStatsEvent_setAtomId(statsEvent, pullTagId);
     AStatsEvent_overwriteTimestamp(statsEvent, eventTimeNs);
-
     AStatsEvent_writeInt64(statsEvent, value);
-    AStatsEvent_build(statsEvent);
-
-    size_t size;
-    uint8_t* buf = AStatsEvent_getBuffer(statsEvent, &size);
 
     std::unique_ptr<LogEvent> logEvent = std::make_unique<LogEvent>(/*uid=*/0, /*pid=*/0);
-    logEvent->parseBuffer(buf, size);
-    AStatsEvent_release(statsEvent);
+    parseStatsEventToLogEvent(statsEvent, logEvent.get());
     return logEvent;
 }
 
diff --git a/cmds/statsd/tests/external/puller_util_test.cpp b/cmds/statsd/tests/external/puller_util_test.cpp
index 15425d8..3e1cc5e 100644
--- a/cmds/statsd/tests/external/puller_util_test.cpp
+++ b/cmds/statsd/tests/external/puller_util_test.cpp
@@ -23,6 +23,7 @@
 #include "../metrics/metrics_test_helper.h"
 #include "stats_event.h"
 #include "statslog_statsdtest.h"
+#include "tests/statsd_test_util.h"
 
 #ifdef __ANDROID__
 
@@ -71,14 +72,9 @@
     AStatsEvent_writeInt32(statsEvent, uid);
     AStatsEvent_writeInt32(statsEvent, data1);
     AStatsEvent_writeInt32(statsEvent, data2);
-    AStatsEvent_build(statsEvent);
-
-    size_t size;
-    uint8_t* buf = AStatsEvent_getBuffer(statsEvent, &size);
 
     std::shared_ptr<LogEvent> logEvent = std::make_unique<LogEvent>(/*uid=*/0, /*pid=*/0);
-    logEvent->parseBuffer(buf, size);
-    AStatsEvent_release(statsEvent);
+    parseStatsEventToLogEvent(statsEvent, logEvent.get());
     return logEvent;
 }
 
@@ -86,16 +82,10 @@
     AStatsEvent* statsEvent = AStatsEvent_obtain();
     AStatsEvent_setAtomId(statsEvent, nonUidAtomTagId);
     AStatsEvent_overwriteTimestamp(statsEvent, timestampNs);
-
     AStatsEvent_writeInt32(statsEvent, data1);
-    AStatsEvent_build(statsEvent);
-
-    size_t size;
-    uint8_t* buf = AStatsEvent_getBuffer(statsEvent, &size);
 
     std::shared_ptr<LogEvent> logEvent = std::make_unique<LogEvent>(/*uid=*/0, /*pid=*/0);
-    logEvent->parseBuffer(buf, size);
-    AStatsEvent_release(statsEvent);
+    parseStatsEventToLogEvent(statsEvent, logEvent.get());
     return logEvent;
 }
 
diff --git a/cmds/statsd/tests/log_event/LogEventQueue_test.cpp b/cmds/statsd/tests/log_event/LogEventQueue_test.cpp
index 6dc041f..a15f95b 100644
--- a/cmds/statsd/tests/log_event/LogEventQueue_test.cpp
+++ b/cmds/statsd/tests/log_event/LogEventQueue_test.cpp
@@ -21,6 +21,7 @@
 #include <thread>
 
 #include "stats_event.h"
+#include "tests/statsd_test_util.h"
 
 namespace android {
 namespace os {
@@ -37,14 +38,9 @@
     AStatsEvent* statsEvent = AStatsEvent_obtain();
     AStatsEvent_setAtomId(statsEvent, 10);
     AStatsEvent_overwriteTimestamp(statsEvent, timestampNs);
-    AStatsEvent_build(statsEvent);
-
-    size_t size;
-    uint8_t* buf = AStatsEvent_getBuffer(statsEvent, &size);
 
     std::unique_ptr<LogEvent> logEvent = std::make_unique<LogEvent>(/*uid=*/0, /*pid=*/0);
-    logEvent->parseBuffer(buf, size);
-    AStatsEvent_release(statsEvent);
+    parseStatsEventToLogEvent(statsEvent, logEvent.get());
     return logEvent;
 }
 
diff --git a/cmds/statsd/tests/metrics/CountMetricProducer_test.cpp b/cmds/statsd/tests/metrics/CountMetricProducer_test.cpp
index d55996c..65f8de6 100644
--- a/cmds/statsd/tests/metrics/CountMetricProducer_test.cpp
+++ b/cmds/statsd/tests/metrics/CountMetricProducer_test.cpp
@@ -46,26 +46,17 @@
     AStatsEvent* statsEvent = AStatsEvent_obtain();
     AStatsEvent_setAtomId(statsEvent, atomId);
     AStatsEvent_overwriteTimestamp(statsEvent, timestampNs);
-    AStatsEvent_build(statsEvent);
 
-    size_t size;
-    uint8_t* buf = AStatsEvent_getBuffer(statsEvent, &size);
-    logEvent->parseBuffer(buf, size);
-    AStatsEvent_release(statsEvent);
+    parseStatsEventToLogEvent(statsEvent, logEvent);
 }
 
 void makeLogEvent(LogEvent* logEvent, int64_t timestampNs, int atomId, string uid) {
     AStatsEvent* statsEvent = AStatsEvent_obtain();
     AStatsEvent_setAtomId(statsEvent, atomId);
     AStatsEvent_overwriteTimestamp(statsEvent, timestampNs);
-
     AStatsEvent_writeString(statsEvent, uid.c_str());
-    AStatsEvent_build(statsEvent);
 
-    size_t size;
-    uint8_t* buf = AStatsEvent_getBuffer(statsEvent, &size);
-    logEvent->parseBuffer(buf, size);
-    AStatsEvent_release(statsEvent);
+    parseStatsEventToLogEvent(statsEvent, logEvent);
 }
 
 }  // namespace
diff --git a/cmds/statsd/tests/metrics/DurationMetricProducer_test.cpp b/cmds/statsd/tests/metrics/DurationMetricProducer_test.cpp
index 6143dc0..30f8159 100644
--- a/cmds/statsd/tests/metrics/DurationMetricProducer_test.cpp
+++ b/cmds/statsd/tests/metrics/DurationMetricProducer_test.cpp
@@ -26,6 +26,7 @@
 #include "src/condition/ConditionWizard.h"
 #include "src/stats_log_util.h"
 #include "stats_event.h"
+#include "tests/statsd_test_util.h"
 
 using namespace android::os::statsd;
 using namespace testing;
@@ -48,12 +49,8 @@
     AStatsEvent* statsEvent = AStatsEvent_obtain();
     AStatsEvent_setAtomId(statsEvent, atomId);
     AStatsEvent_overwriteTimestamp(statsEvent, timestampNs);
-    AStatsEvent_build(statsEvent);
 
-    size_t size;
-    uint8_t* buf = AStatsEvent_getBuffer(statsEvent, &size);
-    logEvent->parseBuffer(buf, size);
-    AStatsEvent_release(statsEvent);
+    parseStatsEventToLogEvent(statsEvent, logEvent);
 }
 
 }  // namespace
diff --git a/cmds/statsd/tests/metrics/EventMetricProducer_test.cpp b/cmds/statsd/tests/metrics/EventMetricProducer_test.cpp
index e58bbb7..97647a7 100644
--- a/cmds/statsd/tests/metrics/EventMetricProducer_test.cpp
+++ b/cmds/statsd/tests/metrics/EventMetricProducer_test.cpp
@@ -43,14 +43,9 @@
     AStatsEvent* statsEvent = AStatsEvent_obtain();
     AStatsEvent_setAtomId(statsEvent, atomId);
     AStatsEvent_overwriteTimestamp(statsEvent, timestampNs);
-
     AStatsEvent_writeString(statsEvent, str.c_str());
-    AStatsEvent_build(statsEvent);
 
-    size_t size;
-    uint8_t* buf = AStatsEvent_getBuffer(statsEvent, &size);
-    logEvent->parseBuffer(buf, size);
-    AStatsEvent_release(statsEvent);
+    parseStatsEventToLogEvent(statsEvent, logEvent);
 }
 }  // anonymous namespace
 
diff --git a/cmds/statsd/tests/metrics/GaugeMetricProducer_test.cpp b/cmds/statsd/tests/metrics/GaugeMetricProducer_test.cpp
index 2fe05a4..42d0d5d 100644
--- a/cmds/statsd/tests/metrics/GaugeMetricProducer_test.cpp
+++ b/cmds/statsd/tests/metrics/GaugeMetricProducer_test.cpp
@@ -64,14 +64,9 @@
     AStatsEvent_writeInt32(statsEvent, value1);
     AStatsEvent_writeString(statsEvent, str1.c_str());
     AStatsEvent_writeInt32(statsEvent, value2);
-    AStatsEvent_build(statsEvent);
 
-    size_t size;
-    uint8_t* buf = AStatsEvent_getBuffer(statsEvent, &size);
     shared_ptr<LogEvent> logEvent = std::make_shared<LogEvent>(/*uid=*/0, /*pid=*/0);
-    logEvent->parseBuffer(buf, size);
-    AStatsEvent_release(statsEvent);
-
+    parseStatsEventToLogEvent(statsEvent, logEvent.get());
     return logEvent;
 }
 }  // anonymous namespace
diff --git a/cmds/statsd/tests/metrics/ValueMetricProducer_test.cpp b/cmds/statsd/tests/metrics/ValueMetricProducer_test.cpp
index b623a09..009e49a 100644
--- a/cmds/statsd/tests/metrics/ValueMetricProducer_test.cpp
+++ b/cmds/statsd/tests/metrics/ValueMetricProducer_test.cpp
@@ -611,7 +611,7 @@
 
     vector<shared_ptr<LogEvent>> allData;
     allData.clear();
-    allData.push_back(CreateTwoValueLogEvent(tagId, bucket2StartTimeNs + 1, 1, 110));
+    allData.push_back(CreateRepeatedValueLogEvent(tagId, bucket2StartTimeNs + 1, 110));
     valueProducer->onDataPulled(allData, /** succeed */ true, bucket2StartTimeNs);
     assertPastBucketValuesSingleKey(valueProducer->mPastBuckets, {10}, {bucketSizeNs - 8});
 
@@ -656,7 +656,7 @@
     valueProducer.prepareFirstBucket();
 
     LogEvent event1(/*uid=*/0, /*pid=*/0);
-    CreateTwoValueLogEvent(&event1, tagId, bucketStartTimeNs + 10, 1, 10);
+    CreateRepeatedValueLogEvent(&event1, tagId, bucketStartTimeNs + 10, 10);
     valueProducer.onMatchedLogEvent(1 /*log matcher index*/, event1);
     EXPECT_EQ(1UL, valueProducer.mCurrentSlicedBucket.size());
 
@@ -665,14 +665,14 @@
     EXPECT_EQ(bucketStartTimeNs + 150, valueProducer.mCurrentBucketStartTimeNs);
 
     LogEvent event2(/*uid=*/0, /*pid=*/0);
-    CreateTwoValueLogEvent(&event2, tagId, bucketStartTimeNs + 59 * NS_PER_SEC, 1, 10);
+    CreateRepeatedValueLogEvent(&event2, tagId, bucketStartTimeNs + 59 * NS_PER_SEC, 10);
     valueProducer.onMatchedLogEvent(1 /*log matcher index*/, event2);
     EXPECT_EQ(1UL, valueProducer.mPastBuckets[DEFAULT_METRIC_DIMENSION_KEY].size());
     EXPECT_EQ(bucketStartTimeNs + 150, valueProducer.mCurrentBucketStartTimeNs);
 
     // Next value should create a new bucket.
     LogEvent event3(/*uid=*/0, /*pid=*/0);
-    CreateTwoValueLogEvent(&event3, tagId, bucketStartTimeNs + 65 * NS_PER_SEC, 1, 10);
+    CreateRepeatedValueLogEvent(&event3, tagId, bucketStartTimeNs + 65 * NS_PER_SEC, 10);
     valueProducer.onMatchedLogEvent(1 /*log matcher index*/, event3);
     EXPECT_EQ(2UL, valueProducer.mPastBuckets[DEFAULT_METRIC_DIMENSION_KEY].size());
     EXPECT_EQ(bucketStartTimeNs + bucketSizeNs, valueProducer.mCurrentBucketStartTimeNs);
@@ -812,10 +812,10 @@
     valueProducer.prepareFirstBucket();
 
     LogEvent event1(/*uid=*/0, /*pid=*/0);
-    CreateTwoValueLogEvent(&event1, tagId, bucketStartTimeNs + 10, 1, 10);
+    CreateRepeatedValueLogEvent(&event1, tagId, bucketStartTimeNs + 10, 10);
 
     LogEvent event2(/*uid=*/0, /*pid=*/0);
-    CreateTwoValueLogEvent(&event2, tagId, bucketStartTimeNs + 20, 1, 20);
+    CreateRepeatedValueLogEvent(&event2, tagId, bucketStartTimeNs + 20, 20);
 
     valueProducer.onMatchedLogEvent(1 /*log matcher index*/, event1);
     // has one slice
@@ -856,7 +856,7 @@
     valueProducer.mCondition = ConditionState::kFalse;
 
     LogEvent event1(/*uid=*/0, /*pid=*/0);
-    CreateTwoValueLogEvent(&event1, tagId, bucketStartTimeNs + 10, 1, 10);
+    CreateRepeatedValueLogEvent(&event1, tagId, bucketStartTimeNs + 10, 10);
     valueProducer.onMatchedLogEvent(1 /*log matcher index*/, event1);
     // has 1 slice
     EXPECT_EQ(0UL, valueProducer.mCurrentSlicedBucket.size());
@@ -864,7 +864,7 @@
     valueProducer.onConditionChangedLocked(true, bucketStartTimeNs + 15);
 
     LogEvent event2(/*uid=*/0, /*pid=*/0);
-    CreateTwoValueLogEvent(&event2, tagId, bucketStartTimeNs + 20, 1, 20);
+    CreateRepeatedValueLogEvent(&event2, tagId, bucketStartTimeNs + 20, 20);
     valueProducer.onMatchedLogEvent(1 /*log matcher index*/, event2);
 
     // has one slice
@@ -875,7 +875,7 @@
     EXPECT_EQ(20, curInterval.value.long_value);
 
     LogEvent event3(/*uid=*/0, /*pid=*/0);
-    CreateTwoValueLogEvent(&event3, tagId, bucketStartTimeNs + 30, 1, 30);
+    CreateRepeatedValueLogEvent(&event3, tagId, bucketStartTimeNs + 30, 30);
     valueProducer.onMatchedLogEvent(1 /*log matcher index*/, event3);
 
     // has one slice
@@ -886,7 +886,7 @@
     valueProducer.onConditionChangedLocked(false, bucketStartTimeNs + 35);
 
     LogEvent event4(/*uid=*/0, /*pid=*/0);
-    CreateTwoValueLogEvent(&event4, tagId, bucketStartTimeNs + 40, 1, 40);
+    CreateRepeatedValueLogEvent(&event4, tagId, bucketStartTimeNs + 40, 40);
     valueProducer.onMatchedLogEvent(1 /*log matcher index*/, event4);
 
     // has one slice
@@ -1195,10 +1195,10 @@
     valueProducer.prepareFirstBucket();
 
     LogEvent event1(/*uid=*/0, /*pid=*/0);
-    CreateTwoValueLogEvent(&event1, tagId, bucketStartTimeNs + 10, 1, 10);
+    CreateRepeatedValueLogEvent(&event1, tagId, bucketStartTimeNs + 10, 10);
 
     LogEvent event2(/*uid=*/0, /*pid=*/0);
-    CreateTwoValueLogEvent(&event2, tagId, bucketStartTimeNs + 20, 1, 20);
+    CreateRepeatedValueLogEvent(&event2, tagId, bucketStartTimeNs + 20, 20);
 
     valueProducer.onMatchedLogEvent(1 /*log matcher index*/, event1);
     // has one slice
@@ -1238,10 +1238,10 @@
     valueProducer.prepareFirstBucket();
 
     LogEvent event1(/*uid=*/0, /*pid=*/0);
-    CreateTwoValueLogEvent(&event1, tagId, bucketStartTimeNs + 10, 1, 10);
+    CreateRepeatedValueLogEvent(&event1, tagId, bucketStartTimeNs + 10, 10);
 
     LogEvent event2(/*uid=*/0, /*pid=*/0);
-    CreateTwoValueLogEvent(&event2, tagId, bucketStartTimeNs + 20, 1, 20);
+    CreateRepeatedValueLogEvent(&event2, tagId, bucketStartTimeNs + 20, 20);
     valueProducer.onMatchedLogEvent(1 /*log matcher index*/, event1);
 
     // has one slice
@@ -1283,10 +1283,10 @@
     valueProducer.prepareFirstBucket();
 
     LogEvent event1(/*uid=*/0, /*pid=*/0);
-    CreateTwoValueLogEvent(&event1, tagId, bucketStartTimeNs + 10, 1, 10);
+    CreateRepeatedValueLogEvent(&event1, tagId, bucketStartTimeNs + 10, 10);
 
     LogEvent event2(/*uid=*/0, /*pid=*/0);
-    CreateTwoValueLogEvent(&event2, tagId, bucketStartTimeNs + 20, 1, 15);
+    CreateRepeatedValueLogEvent(&event2, tagId, bucketStartTimeNs + 20, 15);
     valueProducer.onMatchedLogEvent(1 /*log matcher index*/, event1);
     // has one slice
     EXPECT_EQ(1UL, valueProducer.mCurrentSlicedBucket.size());
@@ -1331,10 +1331,10 @@
     valueProducer.prepareFirstBucket();
 
     LogEvent event1(/*uid=*/0, /*pid=*/0);
-    CreateTwoValueLogEvent(&event1, tagId, bucketStartTimeNs + 10, 1, 10);
+    CreateRepeatedValueLogEvent(&event1, tagId, bucketStartTimeNs + 10, 10);
 
     LogEvent event2(/*uid=*/0, /*pid=*/0);
-    CreateTwoValueLogEvent(&event2, tagId, bucketStartTimeNs + 20, 1, 15);
+    CreateRepeatedValueLogEvent(&event2, tagId, bucketStartTimeNs + 20, 15);
     valueProducer.onMatchedLogEvent(1 /*log matcher index*/, event1);
     // has one slice
     EXPECT_EQ(1UL, valueProducer.mCurrentSlicedBucket.size());
@@ -1374,10 +1374,10 @@
     valueProducer.prepareFirstBucket();
 
     LogEvent event1(/*uid=*/0, /*pid=*/0);
-    CreateTwoValueLogEvent(&event1, tagId, bucketStartTimeNs + 10, 1, 10);
+    CreateRepeatedValueLogEvent(&event1, tagId, bucketStartTimeNs + 10, 10);
 
     LogEvent event2(/*uid=*/0, /*pid=*/0);
-    CreateTwoValueLogEvent(&event2, tagId, bucketStartTimeNs + 15, 1, 15);
+    CreateRepeatedValueLogEvent(&event2, tagId, bucketStartTimeNs + 15, 15);
     valueProducer.onMatchedLogEvent(1 /*log matcher index*/, event1);
     // has one slice
     EXPECT_EQ(1UL, valueProducer.mCurrentSlicedBucket.size());
@@ -1398,7 +1398,7 @@
 
     // no change in data.
     LogEvent event3(/*uid=*/0, /*pid=*/0);
-    CreateTwoValueLogEvent(&event3, tagId, bucket2StartTimeNs + 10, 1, 15);
+    CreateRepeatedValueLogEvent(&event3, tagId, bucket2StartTimeNs + 10, 15);
     valueProducer.onMatchedLogEvent(1 /*log matcher index*/, event3);
     EXPECT_EQ(1UL, valueProducer.mCurrentSlicedBucket.size());
     curInterval = valueProducer.mCurrentSlicedBucket.begin()->second[0];
@@ -1408,7 +1408,7 @@
     EXPECT_EQ(true, curInterval.hasValue);
 
     LogEvent event4(/*uid=*/0, /*pid=*/0);
-    CreateTwoValueLogEvent(&event4, tagId, bucket2StartTimeNs + 15, 1, 15);
+    CreateRepeatedValueLogEvent(&event4, tagId, bucket2StartTimeNs + 15, 15);
     valueProducer.onMatchedLogEvent(1 /*log matcher index*/, event4);
     EXPECT_EQ(1UL, valueProducer.mCurrentSlicedBucket.size());
     curInterval = valueProducer.mCurrentSlicedBucket.begin()->second[0];
@@ -2166,7 +2166,7 @@
     // Bucket start.
     vector<shared_ptr<LogEvent>> allData;
     allData.clear();
-    allData.push_back(CreateTwoValueLogEvent(tagId, bucketStartTimeNs + 1, 1, 110));
+    allData.push_back(CreateRepeatedValueLogEvent(tagId, bucketStartTimeNs + 1, 110));
     valueProducer->onDataPulled(allData, /** succeed */ false, bucketStartTimeNs);
 
     valueProducer->onConditionChanged(false, bucketStartTimeNs + 2);
@@ -2174,7 +2174,7 @@
 
     // Bucket end.
     allData.clear();
-    allData.push_back(CreateTwoValueLogEvent(tagId, bucket2StartTimeNs + 1, 1, 140));
+    allData.push_back(CreateRepeatedValueLogEvent(tagId, bucket2StartTimeNs + 1, 140));
     valueProducer->onDataPulled(allData, /** succeed */ true, bucket2StartTimeNs);
 
     valueProducer->flushIfNeededLocked(bucket2StartTimeNs + 1);
diff --git a/cmds/statsd/tests/shell/ShellSubscriber_test.cpp b/cmds/statsd/tests/shell/ShellSubscriber_test.cpp
index ac3ad69..7b952d7 100644
--- a/cmds/statsd/tests/shell/ShellSubscriber_test.cpp
+++ b/cmds/statsd/tests/shell/ShellSubscriber_test.cpp
@@ -171,13 +171,9 @@
     AStatsEvent_overwriteTimestamp(statsEvent, 1111L);
     AStatsEvent_writeInt32(statsEvent, uid);
     AStatsEvent_writeInt64(statsEvent, timeMillis);
-    AStatsEvent_build(statsEvent);
-
-    size_t size;
-    uint8_t* buf = AStatsEvent_getBuffer(statsEvent, &size);
 
     std::shared_ptr<LogEvent> logEvent = std::make_shared<LogEvent>(/*uid=*/0, /*pid=*/0);
-    logEvent->parseBuffer(buf, size);
+    parseStatsEventToLogEvent(statsEvent, logEvent.get());
     return logEvent;
 }
 
diff --git a/cmds/statsd/tests/state/StateTracker_test.cpp b/cmds/statsd/tests/state/StateTracker_test.cpp
index a5b8e1c..78c80bc 100644
--- a/cmds/statsd/tests/state/StateTracker_test.cpp
+++ b/cmds/statsd/tests/state/StateTracker_test.cpp
@@ -62,7 +62,7 @@
 
 // START: build event functions.
 // Incorrect event - missing fields
-std::shared_ptr<LogEvent> buildIncorrectOverlayEvent(int uid, const std::string& packageName,
+std::unique_ptr<LogEvent> buildIncorrectOverlayEvent(int uid, const std::string& packageName,
                                                      int state) {
     AStatsEvent* statsEvent = AStatsEvent_obtain();
     AStatsEvent_setAtomId(statsEvent, util::OVERLAY_STATE_CHANGED);
@@ -72,14 +72,9 @@
     AStatsEvent_writeString(statsEvent, packageName.c_str());
     // Missing field 3 - using_alert_window.
     AStatsEvent_writeInt32(statsEvent, state);
-    AStatsEvent_build(statsEvent);
-
-    size_t size;
-    uint8_t* buf = AStatsEvent_getBuffer(statsEvent, &size);
 
     std::unique_ptr<LogEvent> logEvent = std::make_unique<LogEvent>(/*uid=*/0, /*pid=*/0);
-    logEvent->parseBuffer(buf, size);
-    AStatsEvent_release(statsEvent);
+    parseStatsEventToLogEvent(statsEvent, logEvent.get());
     return logEvent;
 }
 
@@ -93,14 +88,9 @@
     AStatsEvent_writeString(statsEvent, packageName.c_str());
     AStatsEvent_writeInt32(statsEvent, true);       // using_alert_window
     AStatsEvent_writeString(statsEvent, "string");  // exclusive state: string instead of int
-    AStatsEvent_build(statsEvent);
-
-    size_t size;
-    uint8_t* buf = AStatsEvent_getBuffer(statsEvent, &size);
 
     std::unique_ptr<LogEvent> logEvent = std::make_unique<LogEvent>(/*uid=*/0, /*pid=*/0);
-    logEvent->parseBuffer(buf, size);
-    AStatsEvent_release(statsEvent);
+    parseStatsEventToLogEvent(statsEvent, logEvent.get());
     return logEvent;
 }
 // END: build event functions.
diff --git a/cmds/statsd/tests/statsd_test_util.cpp b/cmds/statsd/tests/statsd_test_util.cpp
index 7d765d3..ed3cf5b 100644
--- a/cmds/statsd/tests/statsd_test_util.cpp
+++ b/cmds/statsd/tests/statsd_test_util.cpp
@@ -507,23 +507,26 @@
 }
 // END: get primary key functions
 
-shared_ptr<LogEvent> CreateTwoValueLogEvent(int atomId, int64_t eventTimeNs, int32_t value1,
-                                            int32_t value2) {
-    AStatsEvent* statsEvent = AStatsEvent_obtain();
-    AStatsEvent_setAtomId(statsEvent, atomId);
-    AStatsEvent_overwriteTimestamp(statsEvent, eventTimeNs);
+void writeAttribution(AStatsEvent* statsEvent, const vector<int>& attributionUids,
+                      const vector<string>& attributionTags) {
+    vector<const char*> cTags(attributionTags.size());
+    for (int i = 0; i < cTags.size(); i++) {
+        cTags[i] = attributionTags[i].c_str();
+    }
 
-    AStatsEvent_writeInt32(statsEvent, value1);
-    AStatsEvent_writeInt32(statsEvent, value2);
+    AStatsEvent_writeAttributionChain(statsEvent,
+                                      reinterpret_cast<const uint32_t*>(attributionUids.data()),
+                                      cTags.data(), attributionUids.size());
+}
+
+void parseStatsEventToLogEvent(AStatsEvent* statsEvent, LogEvent* logEvent) {
     AStatsEvent_build(statsEvent);
 
     size_t size;
     uint8_t* buf = AStatsEvent_getBuffer(statsEvent, &size);
-    shared_ptr<LogEvent> logEvent = std::make_shared<LogEvent>(/*uid=*/0, /*pid=*/0);
     logEvent->parseBuffer(buf, size);
-    AStatsEvent_release(statsEvent);
 
-    return logEvent;
+    AStatsEvent_release(statsEvent);
 }
 
 void CreateTwoValueLogEvent(LogEvent* logEvent, int atomId, int64_t eventTimeNs, int32_t value1,
@@ -534,31 +537,14 @@
 
     AStatsEvent_writeInt32(statsEvent, value1);
     AStatsEvent_writeInt32(statsEvent, value2);
-    AStatsEvent_build(statsEvent);
 
-    size_t size;
-    uint8_t* buf = AStatsEvent_getBuffer(statsEvent, &size);
-    logEvent->parseBuffer(buf, size);
-    AStatsEvent_release(statsEvent);
+    parseStatsEventToLogEvent(statsEvent, logEvent);
 }
 
-shared_ptr<LogEvent> CreateThreeValueLogEvent(int atomId, int64_t eventTimeNs, int32_t value1,
-                                              int32_t value2, int32_t value3) {
-    AStatsEvent* statsEvent = AStatsEvent_obtain();
-    AStatsEvent_setAtomId(statsEvent, atomId);
-    AStatsEvent_overwriteTimestamp(statsEvent, eventTimeNs);
-
-    AStatsEvent_writeInt32(statsEvent, value1);
-    AStatsEvent_writeInt32(statsEvent, value2);
-    AStatsEvent_writeInt32(statsEvent, value3);
-    AStatsEvent_build(statsEvent);
-
-    size_t size;
-    uint8_t* buf = AStatsEvent_getBuffer(statsEvent, &size);
+shared_ptr<LogEvent> CreateTwoValueLogEvent(int atomId, int64_t eventTimeNs, int32_t value1,
+                                            int32_t value2) {
     shared_ptr<LogEvent> logEvent = std::make_shared<LogEvent>(/*uid=*/0, /*pid=*/0);
-    logEvent->parseBuffer(buf, size);
-    AStatsEvent_release(statsEvent);
-
+    CreateTwoValueLogEvent(logEvent.get(), atomId, eventTimeNs, value1, value2);
     return logEvent;
 }
 
@@ -571,29 +557,14 @@
     AStatsEvent_writeInt32(statsEvent, value1);
     AStatsEvent_writeInt32(statsEvent, value2);
     AStatsEvent_writeInt32(statsEvent, value3);
-    AStatsEvent_build(statsEvent);
 
-    size_t size;
-    uint8_t* buf = AStatsEvent_getBuffer(statsEvent, &size);
-    logEvent->parseBuffer(buf, size);
-    AStatsEvent_release(statsEvent);
+    parseStatsEventToLogEvent(statsEvent, logEvent);
 }
 
-shared_ptr<LogEvent> CreateRepeatedValueLogEvent(int atomId, int64_t eventTimeNs, int32_t value) {
-    AStatsEvent* statsEvent = AStatsEvent_obtain();
-    AStatsEvent_setAtomId(statsEvent, atomId);
-    AStatsEvent_overwriteTimestamp(statsEvent, eventTimeNs);
-
-    AStatsEvent_writeInt32(statsEvent, value);
-    AStatsEvent_writeInt32(statsEvent, value);
-    AStatsEvent_build(statsEvent);
-
-    size_t size;
-    uint8_t* buf = AStatsEvent_getBuffer(statsEvent, &size);
+shared_ptr<LogEvent> CreateThreeValueLogEvent(int atomId, int64_t eventTimeNs, int32_t value1,
+                                              int32_t value2, int32_t value3) {
     shared_ptr<LogEvent> logEvent = std::make_shared<LogEvent>(/*uid=*/0, /*pid=*/0);
-    logEvent->parseBuffer(buf, size);
-    AStatsEvent_release(statsEvent);
-
+    CreateThreeValueLogEvent(logEvent.get(), atomId, eventTimeNs, value1, value2, value3);
     return logEvent;
 }
 
@@ -605,26 +576,13 @@
 
     AStatsEvent_writeInt32(statsEvent, value);
     AStatsEvent_writeInt32(statsEvent, value);
-    AStatsEvent_build(statsEvent);
 
-    size_t size;
-    uint8_t* buf = AStatsEvent_getBuffer(statsEvent, &size);
-    logEvent->parseBuffer(buf, size);
-    AStatsEvent_release(statsEvent);
+    parseStatsEventToLogEvent(statsEvent, logEvent);
 }
 
-shared_ptr<LogEvent> CreateNoValuesLogEvent(int atomId, int64_t eventTimeNs) {
-    AStatsEvent* statsEvent = AStatsEvent_obtain();
-    AStatsEvent_setAtomId(statsEvent, atomId);
-    AStatsEvent_overwriteTimestamp(statsEvent, eventTimeNs);
-    AStatsEvent_build(statsEvent);
-
-    size_t size;
-    uint8_t* buf = AStatsEvent_getBuffer(statsEvent, &size);
+shared_ptr<LogEvent> CreateRepeatedValueLogEvent(int atomId, int64_t eventTimeNs, int32_t value) {
     shared_ptr<LogEvent> logEvent = std::make_shared<LogEvent>(/*uid=*/0, /*pid=*/0);
-    logEvent->parseBuffer(buf, size);
-    AStatsEvent_release(statsEvent);
-
+    CreateRepeatedValueLogEvent(logEvent.get(), atomId, eventTimeNs, value);
     return logEvent;
 }
 
@@ -632,12 +590,14 @@
     AStatsEvent* statsEvent = AStatsEvent_obtain();
     AStatsEvent_setAtomId(statsEvent, atomId);
     AStatsEvent_overwriteTimestamp(statsEvent, eventTimeNs);
-    AStatsEvent_build(statsEvent);
 
-    size_t size;
-    uint8_t* buf = AStatsEvent_getBuffer(statsEvent, &size);
-    logEvent->parseBuffer(buf, size);
-    AStatsEvent_release(statsEvent);
+    parseStatsEventToLogEvent(statsEvent, logEvent);
+}
+
+shared_ptr<LogEvent> CreateNoValuesLogEvent(int atomId, int64_t eventTimeNs) {
+    shared_ptr<LogEvent> logEvent = std::make_shared<LogEvent>(/*uid=*/0, /*pid=*/0);
+    CreateNoValuesLogEvent(logEvent.get(), atomId, eventTimeNs);
+    return logEvent;
 }
 
 std::unique_ptr<LogEvent> CreateScreenStateChangedEvent(
@@ -645,16 +605,10 @@
     AStatsEvent* statsEvent = AStatsEvent_obtain();
     AStatsEvent_setAtomId(statsEvent, util::SCREEN_STATE_CHANGED);
     AStatsEvent_overwriteTimestamp(statsEvent, timestampNs);
-
     AStatsEvent_writeInt32(statsEvent, state);
-    AStatsEvent_build(statsEvent);
-
-    size_t size;
-    uint8_t* buf = AStatsEvent_getBuffer(statsEvent, &size);
 
     std::unique_ptr<LogEvent> logEvent = std::make_unique<LogEvent>(/*uid=*/0, /*pid=*/0);
-    logEvent->parseBuffer(buf, size);
-    AStatsEvent_release(statsEvent);
+    parseStatsEventToLogEvent(statsEvent, logEvent.get());
     return logEvent;
 }
 
@@ -662,16 +616,10 @@
     AStatsEvent* statsEvent = AStatsEvent_obtain();
     AStatsEvent_setAtomId(statsEvent, util::BATTERY_SAVER_MODE_STATE_CHANGED);
     AStatsEvent_overwriteTimestamp(statsEvent, timestampNs);
-
     AStatsEvent_writeInt32(statsEvent, BatterySaverModeStateChanged::ON);
-    AStatsEvent_build(statsEvent);
-
-    size_t size;
-    uint8_t* buf = AStatsEvent_getBuffer(statsEvent, &size);
 
     std::unique_ptr<LogEvent> logEvent = std::make_unique<LogEvent>(/*uid=*/0, /*pid=*/0);
-    logEvent->parseBuffer(buf, size);
-    AStatsEvent_release(statsEvent);
+    parseStatsEventToLogEvent(statsEvent, logEvent.get());
     return logEvent;
 }
 
@@ -679,16 +627,10 @@
     AStatsEvent* statsEvent = AStatsEvent_obtain();
     AStatsEvent_setAtomId(statsEvent, util::BATTERY_SAVER_MODE_STATE_CHANGED);
     AStatsEvent_overwriteTimestamp(statsEvent, timestampNs);
-
     AStatsEvent_writeInt32(statsEvent, BatterySaverModeStateChanged::OFF);
-    AStatsEvent_build(statsEvent);
-
-    size_t size;
-    uint8_t* buf = AStatsEvent_getBuffer(statsEvent, &size);
 
     std::unique_ptr<LogEvent> logEvent = std::make_unique<LogEvent>(/*uid=*/0, /*pid=*/0);
-    logEvent->parseBuffer(buf, size);
-    AStatsEvent_release(statsEvent);
+    parseStatsEventToLogEvent(statsEvent, logEvent.get());
     return logEvent;
 }
 
@@ -696,16 +638,10 @@
     AStatsEvent* statsEvent = AStatsEvent_obtain();
     AStatsEvent_setAtomId(statsEvent, util::PLUGGED_STATE_CHANGED);
     AStatsEvent_overwriteTimestamp(statsEvent, timestampNs);
-
     AStatsEvent_writeInt32(statsEvent, state);
-    AStatsEvent_build(statsEvent);
-
-    size_t size;
-    uint8_t* buf = AStatsEvent_getBuffer(statsEvent, &size);
 
     std::unique_ptr<LogEvent> logEvent = std::make_unique<LogEvent>(/*uid=*/0, /*pid=*/0);
-    logEvent->parseBuffer(buf, size);
-    AStatsEvent_release(statsEvent);
+    parseStatsEventToLogEvent(statsEvent, logEvent.get());
     return logEvent;
 }
 
@@ -713,16 +649,10 @@
     AStatsEvent* statsEvent = AStatsEvent_obtain();
     AStatsEvent_setAtomId(statsEvent, util::SCREEN_BRIGHTNESS_CHANGED);
     AStatsEvent_overwriteTimestamp(statsEvent, timestampNs);
-
     AStatsEvent_writeInt32(statsEvent, level);
-    AStatsEvent_build(statsEvent);
-
-    size_t size;
-    uint8_t* buf = AStatsEvent_getBuffer(statsEvent, &size);
 
     std::unique_ptr<LogEvent> logEvent = std::make_unique<LogEvent>(/*uid=*/0, /*pid=*/0);
-    logEvent->parseBuffer(buf, size);
-    AStatsEvent_release(statsEvent);
+    parseStatsEventToLogEvent(statsEvent, logEvent.get());
     return logEvent;
 }
 
@@ -733,24 +663,12 @@
     AStatsEvent_setAtomId(statsEvent, util::SCHEDULED_JOB_STATE_CHANGED);
     AStatsEvent_overwriteTimestamp(statsEvent, timestampNs);
 
-    vector<const char*> cTags(attributionTags.size());
-    for (int i = 0; i < cTags.size(); i++) {
-        cTags[i] = attributionTags[i].c_str();
-    }
-
-    AStatsEvent_writeAttributionChain(statsEvent,
-                                      reinterpret_cast<const uint32_t*>(attributionUids.data()),
-                                      cTags.data(), attributionUids.size());
+    writeAttribution(statsEvent, attributionUids, attributionTags);
     AStatsEvent_writeString(statsEvent, jobName.c_str());
     AStatsEvent_writeInt32(statsEvent, state);
-    AStatsEvent_build(statsEvent);
-
-    size_t size;
-    uint8_t* buf = AStatsEvent_getBuffer(statsEvent, &size);
 
     std::unique_ptr<LogEvent> logEvent = std::make_unique<LogEvent>(/*uid=*/0, /*pid=*/0);
-    logEvent->parseBuffer(buf, size);
-    AStatsEvent_release(statsEvent);
+    parseStatsEventToLogEvent(statsEvent, logEvent.get());
     return logEvent;
 }
 
@@ -780,25 +698,13 @@
     AStatsEvent_setAtomId(statsEvent, util::WAKELOCK_STATE_CHANGED);
     AStatsEvent_overwriteTimestamp(statsEvent, timestampNs);
 
-    vector<const char*> cTags(attributionTags.size());
-    for (int i = 0; i < cTags.size(); i++) {
-        cTags[i] = attributionTags[i].c_str();
-    }
-
-    AStatsEvent_writeAttributionChain(statsEvent,
-                                      reinterpret_cast<const uint32_t*>(attributionUids.data()),
-                                      cTags.data(), attributionUids.size());
+    writeAttribution(statsEvent, attributionUids, attributionTags);
     AStatsEvent_writeInt32(statsEvent, android::os::WakeLockLevelEnum::PARTIAL_WAKE_LOCK);
     AStatsEvent_writeString(statsEvent, wakelockName.c_str());
     AStatsEvent_writeInt32(statsEvent, state);
-    AStatsEvent_build(statsEvent);
-
-    size_t size;
-    uint8_t* buf = AStatsEvent_getBuffer(statsEvent, &size);
 
     std::unique_ptr<LogEvent> logEvent = std::make_unique<LogEvent>(/*uid=*/0, /*pid=*/0);
-    logEvent->parseBuffer(buf, size);
-    AStatsEvent_release(statsEvent);
+    parseStatsEventToLogEvent(statsEvent, logEvent.get());
     return logEvent;
 }
 
@@ -828,14 +734,9 @@
     AStatsEvent_writeString(statsEvent, "pkg_name");
     AStatsEvent_writeString(statsEvent, "class_name");
     AStatsEvent_writeInt32(statsEvent, state);
-    AStatsEvent_build(statsEvent);
-
-    size_t size;
-    uint8_t* buf = AStatsEvent_getBuffer(statsEvent, &size);
 
     std::unique_ptr<LogEvent> logEvent = std::make_unique<LogEvent>(/*uid=*/0, /*pid=*/0);
-    logEvent->parseBuffer(buf, size);
-    AStatsEvent_release(statsEvent);
+    parseStatsEventToLogEvent(statsEvent, logEvent.get());
     return logEvent;
 }
 
@@ -858,24 +759,12 @@
     AStatsEvent_setAtomId(statsEvent, util::SYNC_STATE_CHANGED);
     AStatsEvent_overwriteTimestamp(statsEvent, timestampNs);
 
-    vector<const char*> cTags(attributionTags.size());
-    for (int i = 0; i < cTags.size(); i++) {
-        cTags[i] = attributionTags[i].c_str();
-    }
-
-    AStatsEvent_writeAttributionChain(statsEvent,
-                                      reinterpret_cast<const uint32_t*>(attributionUids.data()),
-                                      cTags.data(), attributionUids.size());
+    writeAttribution(statsEvent, attributionUids, attributionTags);
     AStatsEvent_writeString(statsEvent, name.c_str());
     AStatsEvent_writeInt32(statsEvent, state);
-    AStatsEvent_build(statsEvent);
-
-    size_t size;
-    uint8_t* buf = AStatsEvent_getBuffer(statsEvent, &size);
 
     std::unique_ptr<LogEvent> logEvent = std::make_unique<LogEvent>(/*uid=*/0, /*pid=*/0);
-    logEvent->parseBuffer(buf, size);
-    AStatsEvent_release(statsEvent);
+    parseStatsEventToLogEvent(statsEvent, logEvent.get());
     return logEvent;
 }
 
@@ -904,14 +793,9 @@
     AStatsEvent_writeInt32(statsEvent, uid);
     AStatsEvent_writeString(statsEvent, "");
     AStatsEvent_writeInt32(statsEvent, state);
-    AStatsEvent_build(statsEvent);
-
-    size_t size;
-    uint8_t* buf = AStatsEvent_getBuffer(statsEvent, &size);
 
     std::unique_ptr<LogEvent> logEvent = std::make_unique<LogEvent>(/*uid=*/0, /*pid=*/0);
-    logEvent->parseBuffer(buf, size);
-    AStatsEvent_release(statsEvent);
+    parseStatsEventToLogEvent(statsEvent, logEvent.get());
     return logEvent;
 }
 
@@ -928,14 +812,9 @@
     AStatsEvent_writeInt32(statsEvent, uid);
     AStatsEvent_writeString(statsEvent, "eventType");
     AStatsEvent_writeString(statsEvent, "processName");
-    AStatsEvent_build(statsEvent);
-
-    size_t size;
-    uint8_t* buf = AStatsEvent_getBuffer(statsEvent, &size);
 
     std::unique_ptr<LogEvent> logEvent = std::make_unique<LogEvent>(/*uid=*/0, /*pid=*/0);
-    logEvent->parseBuffer(buf, size);
-    AStatsEvent_release(statsEvent);
+    parseStatsEventToLogEvent(statsEvent, logEvent.get());
     return logEvent;
 }
 
@@ -948,14 +827,9 @@
     AStatsEvent_writeInt32(statsEvent, hostUid);
     AStatsEvent_writeInt32(statsEvent, isolatedUid);
     AStatsEvent_writeInt32(statsEvent, is_create);
-    AStatsEvent_build(statsEvent);
-
-    size_t size;
-    uint8_t* buf = AStatsEvent_getBuffer(statsEvent, &size);
 
     std::unique_ptr<LogEvent> logEvent = std::make_unique<LogEvent>(/*uid=*/0, /*pid=*/0);
-    logEvent->parseBuffer(buf, size);
-    AStatsEvent_release(statsEvent);
+    parseStatsEventToLogEvent(statsEvent, logEvent.get());
     return logEvent;
 }
 
@@ -967,14 +841,9 @@
 
     AStatsEvent_writeInt32(statsEvent, uid);
     AStatsEvent_writeInt32(statsEvent, state);
-    AStatsEvent_build(statsEvent);
-
-    size_t size;
-    uint8_t* buf = AStatsEvent_getBuffer(statsEvent, &size);
 
     std::unique_ptr<LogEvent> logEvent = std::make_unique<LogEvent>(/*uid=*/0, /*pid=*/0);
-    logEvent->parseBuffer(buf, size);
-    AStatsEvent_release(statsEvent);
+    parseStatsEventToLogEvent(statsEvent, logEvent.get());
     return logEvent;
 }
 
@@ -988,26 +857,14 @@
     AStatsEvent_setAtomId(statsEvent, util::BLE_SCAN_STATE_CHANGED);
     AStatsEvent_overwriteTimestamp(statsEvent, timestampNs);
 
-    vector<const char*> cTags(attributionTags.size());
-    for (int i = 0; i < cTags.size(); i++) {
-        cTags[i] = attributionTags[i].c_str();
-    }
-
-    AStatsEvent_writeAttributionChain(statsEvent,
-                                      reinterpret_cast<const uint32_t*>(attributionUids.data()),
-                                      cTags.data(), attributionUids.size());
+    writeAttribution(statsEvent, attributionUids, attributionTags);
     AStatsEvent_writeInt32(statsEvent, state);
     AStatsEvent_writeInt32(statsEvent, filtered);       // filtered
     AStatsEvent_writeInt32(statsEvent, firstMatch);     // first match
     AStatsEvent_writeInt32(statsEvent, opportunistic);  // opportunistic
-    AStatsEvent_build(statsEvent);
-
-    size_t size;
-    uint8_t* buf = AStatsEvent_getBuffer(statsEvent, &size);
 
     std::unique_ptr<LogEvent> logEvent = std::make_unique<LogEvent>(/*uid=*/0, /*pid=*/0);
-    logEvent->parseBuffer(buf, size);
-    AStatsEvent_release(statsEvent);
+    parseStatsEventToLogEvent(statsEvent, logEvent.get());
     return logEvent;
 }
 
@@ -1023,14 +880,9 @@
     AStatsEvent_writeString(statsEvent, packageName.c_str());
     AStatsEvent_writeInt32(statsEvent, usingAlertWindow);
     AStatsEvent_writeInt32(statsEvent, state);
-    AStatsEvent_build(statsEvent);
-
-    size_t size;
-    uint8_t* buf = AStatsEvent_getBuffer(statsEvent, &size);
 
     std::unique_ptr<LogEvent> logEvent = std::make_unique<LogEvent>(/*uid=*/0, /*pid=*/0);
-    logEvent->parseBuffer(buf, size);
-    AStatsEvent_release(statsEvent);
+    parseStatsEventToLogEvent(statsEvent, logEvent.get());
     return logEvent;
 }
 
diff --git a/cmds/statsd/tests/statsd_test_util.h b/cmds/statsd/tests/statsd_test_util.h
index f24705a..d6ea77eb 100644
--- a/cmds/statsd/tests/statsd_test_util.h
+++ b/cmds/statsd/tests/statsd_test_util.h
@@ -25,6 +25,7 @@
 #include "src/hash.h"
 #include "src/logd/LogEvent.h"
 #include "src/stats_log_util.h"
+#include "stats_event.h"
 #include "statslog_statsdtest.h"
 
 namespace android {
@@ -189,6 +190,12 @@
 void getPartialWakelockKey(int uid, HashableDimensionKey* key);
 // END: get primary key functions
 
+void writeAttribution(AStatsEvent* statsEvent, const vector<int>& attributionUids,
+                      const vector<string>& attributionTags);
+
+// Builds statsEvent to get buffer that is parsed into logEvent then releases statsEvent.
+void parseStatsEventToLogEvent(AStatsEvent* statsEvent, LogEvent* logEvent);
+
 shared_ptr<LogEvent> CreateTwoValueLogEvent(int atomId, int64_t eventTimeNs, int32_t value1,
                                             int32_t value2);