1 files changed, 38 insertions, 0 deletions
diff --git a/src/jaegertracing/opentelemetry-cpp/sdk/test/metrics/observer_result_test.cc b/src/jaegertracing/opentelemetry-cpp/sdk/test/metrics/observer_result_test.cc
new file mode 100644
index 000000000..a4cc28ae5
--- /dev/null
+++ b/src/jaegertracing/opentelemetry-cpp/sdk/test/metrics/observer_result_test.cc
@@ -0,0 +1,38 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+#ifndef ENABLE_METRICS_PREVIEW
+#  include "opentelemetry/sdk/metrics/observer_result.h"
+#  include "opentelemetry/sdk/metrics/view/attributes_processor.h"
+
+#  include <gtest/gtest.h>
+
+using namespace opentelemetry::sdk::metrics;
+TEST(ObserverResult, BasicTests)
+{
+  const AttributesProcessor *attributes_processor = new DefaultAttributesProcessor();
+
+  ObserverResult<long> observer_result(attributes_processor);
+
+  observer_result.Observe(10l);
+  observer_result.Observe(20l);
+  EXPECT_EQ(observer_result.GetMeasurements().size(), 1);
+
+  std::map<std::string, int64_t> m1 = {{"k2", 12}};
+  observer_result.Observe(
+      30l, opentelemetry::common::KeyValueIterableView<std::map<std::string, int64_t>>(m1));
+  EXPECT_EQ(observer_result.GetMeasurements().size(), 2);
+
+  observer_result.Observe(
+      40l, opentelemetry::common::KeyValueIterableView<std::map<std::string, int64_t>>(m1));
+  EXPECT_EQ(observer_result.GetMeasurements().size(), 2);
+
+  std::map<std::string, int64_t> m2 = {{"k2", 12}, {"k4", 12}};
+  observer_result.Observe(
+      40l, opentelemetry::common::KeyValueIterableView<std::map<std::string, int64_t>>(m2));
+  EXPECT_EQ(observer_result.GetMeasurements().size(), 3);
+
+  delete attributes_processor;
+}
+
+#endif
+\ No newline at end of file