Use swap instead of copy in RtcHistogram::GetAndReset.
BUG=webrtc:5283
Review-Url: https://codereview.webrtc.org/2268323002
Cr-Commit-Position: refs/heads/master@{#15311}
diff --git a/webrtc/system_wrappers/source/metrics_unittest.cc b/webrtc/system_wrappers/source/metrics_unittest.cc
index 95f5554..d7be229 100644
--- a/webrtc/system_wrappers/source/metrics_unittest.cc
+++ b/webrtc/system_wrappers/source/metrics_unittest.cc
@@ -58,6 +58,14 @@
EXPECT_EQ(1, metrics::NumEvents(kName, kSample));
}
+TEST_F(MetricsTest, RtcHistogramBoolean_AddSample) {
+ const std::string kName = "Boolean";
+ const int kSample = 0;
+ RTC_HISTOGRAM_BOOLEAN(kName, kSample);
+ EXPECT_EQ(1, metrics::NumSamples(kName));
+ EXPECT_EQ(1, metrics::NumEvents(kName, kSample));
+}
+
TEST_F(MetricsTest, RtcHistogramCountsSparse_AddSample) {
const std::string kName = "CountsSparse100";
RTC_HISTOGRAM_COUNTS_SPARSE_100(kName, kSample);