1 files changed, 49 insertions, 0 deletions
diff --git a/src/jaegertracing/opentelemetry-cpp/sdk/test/metrics/attributes_processor_test.cc b/src/jaegertracing/opentelemetry-cpp/sdk/test/metrics/attributes_processor_test.cc
new file mode 100644
index 000000000..d496cc7b0
--- /dev/null
+++ b/src/jaegertracing/opentelemetry-cpp/sdk/test/metrics/attributes_processor_test.cc
@@ -0,0 +1,49 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+#ifndef ENABLE_METRICS_PREVIEW
+#  include "opentelemetry/sdk/metrics/view/attributes_processor.h"
+#  include <gtest/gtest.h>
+
+using namespace opentelemetry::sdk::metrics;
+using namespace opentelemetry::common;
+using namespace opentelemetry::sdk::common;
+
+TEST(AttributesProcessor, FilteringAttributesProcessor)
+{
+  const int kNumFilterAttributes               = 3;
+  std::unordered_map<std::string, bool> filter = {
+      {"attr2", true}, {"attr4", true}, {"attr6", true}};
+  const int kNumAttributes              = 6;
+  std::string keys[kNumAttributes]      = {"attr1", "attr2", "attr3", "attr4", "attr5", "attr6"};
+  int values[kNumAttributes]            = {10, 20, 30, 40, 50, 60};
+  std::map<std::string, int> attributes = {{keys[0], values[0]}, {keys[1], values[1]},
+                                           {keys[2], values[2]}, {keys[3], values[3]},
+                                           {keys[4], values[4]}, {keys[5], values[5]}};
+  FilteringAttributesProcessor attributes_processor(filter);
+  opentelemetry::common::KeyValueIterableView<std::map<std::string, int>> iterable(attributes);
+  auto filtered_attributes = attributes_processor.process(iterable);
+  for (auto &e : filtered_attributes)
+  {
+    EXPECT_FALSE(filter.find(e.first) == filter.end());
+  }
+  EXPECT_EQ(filter.size(), kNumFilterAttributes);
+}
+
+TEST(AttributesProcessor, FilteringAllAttributesProcessor)
+{
+  const int kNumFilterAttributes               = 0;
+  std::unordered_map<std::string, bool> filter = {};
+  const int kNumAttributes                     = 6;
+  std::string keys[kNumAttributes]      = {"attr1", "attr2", "attr3", "attr4", "attr5", "attr6"};
+  int values[kNumAttributes]            = {10, 20, 30, 40, 50, 60};
+  std::map<std::string, int> attributes = {{keys[0], values[0]}, {keys[1], values[1]},
+                                           {keys[2], values[2]}, {keys[3], values[3]},
+                                           {keys[4], values[4]}, {keys[5], values[5]}};
+  FilteringAttributesProcessor attributes_processor(filter);
+  opentelemetry::common::KeyValueIterableView<std::map<std::string, int>> iterable(attributes);
+  auto filtered_attributes = attributes_processor.process(iterable);
+  EXPECT_EQ(filter.size(), kNumFilterAttributes);
+}
+
+#endif