1 files changed, 213 insertions, 0 deletions
diff --git a/src/jaegertracing/opentelemetry-cpp/sdk/test/resource/resource_test.cc b/src/jaegertracing/opentelemetry-cpp/sdk/test/resource/resource_test.cc
new file mode 100644
index 000000000..5f058eafb
--- /dev/null
+++ b/src/jaegertracing/opentelemetry-cpp/sdk/test/resource/resource_test.cc
@@ -0,0 +1,213 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+#include "opentelemetry/sdk/resource/resource.h"
+#include "opentelemetry/common/key_value_iterable_view.h"
+#include "opentelemetry/nostd/string_view.h"
+#include "opentelemetry/sdk/common/attribute_utils.h"
+#include "opentelemetry/sdk/resource/experimental_semantic_conventions.h"
+#include "opentelemetry/sdk/resource/resource_detector.h"
+
+#include <cstdlib>
+#include <string>
+#include <unordered_map>
+
+#include <gtest/gtest.h>
+
+#if defined(_MSC_VER)
+#  include "opentelemetry/sdk/common/env_variables.h"
+using opentelemetry::sdk::common::setenv;
+using opentelemetry::sdk::common::unsetenv;
+#endif
+
+using namespace opentelemetry::sdk::resource;
+namespace nostd = opentelemetry::nostd;
+
+class TestResource : public Resource
+{
+public:
+  TestResource(ResourceAttributes attributes = ResourceAttributes()) : Resource(attributes) {}
+};
+
+TEST(ResourceTest, create_without_servicename)
+{
+  ResourceAttributes expected_attributes = {
+      {"service", "backend"},
+      {"version", (uint32_t)1},
+      {"cost", 234.23},
+      {OTEL_GET_RESOURCE_ATTR(AttrTelemetrySdkLanguage), "cpp"},
+      {OTEL_GET_RESOURCE_ATTR(AttrTelemetrySdkName), "opentelemetry"},
+      {OTEL_GET_RESOURCE_ATTR(AttrTelemetrySdkVersion), OPENTELEMETRY_SDK_VERSION},
+      {OTEL_GET_RESOURCE_ATTR(AttrServiceName), "unknown_service"}};
+
+  ResourceAttributes attributes = {
+      {"service", "backend"}, {"version", (uint32_t)1}, {"cost", 234.23}};
+  auto resource            = Resource::Create(attributes);
+  auto received_attributes = resource.GetAttributes();
+  for (auto &e : received_attributes)
+  {
+    EXPECT_TRUE(expected_attributes.find(e.first) != expected_attributes.end());
+    if (expected_attributes.find(e.first) != expected_attributes.end())
+    {
+      if (e.first == "version")
+        EXPECT_EQ(nostd::get<uint32_t>(expected_attributes.find(e.first)->second),
+                  nostd::get<uint32_t>(e.second));
+      else if (e.first == "cost")
+        EXPECT_EQ(nostd::get<double>(expected_attributes.find(e.first)->second),
+                  nostd::get<double>(e.second));
+      else
+        EXPECT_EQ(opentelemetry::nostd::get<std::string>(expected_attributes.find(e.first)->second),
+                  opentelemetry::nostd::get<std::string>(e.second));
+    }
+  }
+  EXPECT_EQ(received_attributes.size(), expected_attributes.size());  // for missing service.name
+}
+
+TEST(ResourceTest, create_with_servicename)
+{
+  ResourceAttributes expected_attributes = {
+      {"version", (uint32_t)1},
+      {"cost", 234.23},
+      {OTEL_GET_RESOURCE_ATTR(AttrTelemetrySdkLanguage), "cpp"},
+      {OTEL_GET_RESOURCE_ATTR(AttrTelemetrySdkName), "opentelemetry"},
+      {OTEL_GET_RESOURCE_ATTR(AttrTelemetrySdkVersion), OPENTELEMETRY_SDK_VERSION},
+      {OTEL_GET_RESOURCE_ATTR(AttrServiceName), "backend"},
+  };
+  ResourceAttributes attributes = {
+      {"service.name", "backend"}, {"version", (uint32_t)1}, {"cost", 234.23}};
+  auto resource            = Resource::Create(attributes);
+  auto received_attributes = resource.GetAttributes();
+  for (auto &e : received_attributes)
+  {
+    EXPECT_TRUE(expected_attributes.find(e.first) != expected_attributes.end());
+    if (expected_attributes.find(e.first) != expected_attributes.end())
+    {
+      if (e.first == "version")
+        EXPECT_EQ(nostd::get<uint32_t>(expected_attributes.find(e.first)->second),
+                  nostd::get<uint32_t>(e.second));
+      else if (e.first == "cost")
+        EXPECT_EQ(nostd::get<double>(expected_attributes.find(e.first)->second),
+                  nostd::get<double>(e.second));
+      else
+        EXPECT_EQ(nostd::get<std::string>(expected_attributes.find(e.first)->second),
+                  nostd::get<std::string>(e.second));
+    }
+  }
+  EXPECT_EQ(received_attributes.size(), expected_attributes.size());  // for missing service.name
+}
+
+TEST(ResourceTest, create_with_emptyatrributes)
+{
+  ResourceAttributes expected_attributes = {
+      {OTEL_GET_RESOURCE_ATTR(AttrTelemetrySdkLanguage), "cpp"},
+      {OTEL_GET_RESOURCE_ATTR(AttrTelemetrySdkName), "opentelemetry"},
+      {OTEL_GET_RESOURCE_ATTR(AttrTelemetrySdkVersion), OPENTELEMETRY_SDK_VERSION},
+      {OTEL_GET_RESOURCE_ATTR(AttrServiceName), "unknown_service"},
+  };
+  ResourceAttributes attributes = {};
+  auto resource                 = Resource::Create(attributes);
+  auto received_attributes      = resource.GetAttributes();
+  for (auto &e : received_attributes)
+  {
+    EXPECT_TRUE(expected_attributes.find(e.first) != expected_attributes.end());
+    if (expected_attributes.find(e.first) != expected_attributes.end())
+    {
+      EXPECT_EQ(opentelemetry::nostd::get<std::string>(expected_attributes.find(e.first)->second),
+                opentelemetry::nostd::get<std::string>(e.second));
+    }
+  }
+  EXPECT_EQ(received_attributes.size(), expected_attributes.size());  // for missing service.name
+}
+
+TEST(ResourceTest, create_with_schemaurl)
+{
+  const std::string schema_url  = "https://opentelemetry.io/schemas/1.2.0";
+  ResourceAttributes attributes = {};
+  auto resource                 = Resource::Create(attributes, schema_url);
+  auto received_schema_url      = resource.GetSchemaURL();
+
+  EXPECT_EQ(received_schema_url, schema_url);
+}
+
+TEST(ResourceTest, Merge)
+{
+  TestResource resource1(ResourceAttributes({{"service", "backend"}}));
+  TestResource resource2(ResourceAttributes({{"host", "service-host"}}));
+  std::map<std::string, std::string> expected_attributes = {{"service", "backend"},
+                                                            {"host", "service-host"}};
+
+  auto merged_resource     = resource1.Merge(resource2);
+  auto received_attributes = merged_resource.GetAttributes();
+  for (auto &e : received_attributes)
+  {
+    EXPECT_TRUE(expected_attributes.find(e.first) != expected_attributes.end());
+    if (expected_attributes.find(e.first) != expected_attributes.end())
+    {
+      EXPECT_EQ(expected_attributes.find(e.first)->second, nostd::get<std::string>(e.second));
+    }
+  }
+  EXPECT_EQ(received_attributes.size(), expected_attributes.size());
+}
+
+TEST(ResourceTest, MergeEmptyString)
+{
+  TestResource resource1({{"service", "backend"}, {"host", "service-host"}});
+  TestResource resource2({{"service", ""}, {"host", "another-service-host"}});
+  std::map<std::string, std::string> expected_attributes = {{"service", ""},
+                                                            {"host", "another-service-host"}};
+
+  auto merged_resource     = resource1.Merge(resource2);
+  auto received_attributes = merged_resource.GetAttributes();
+
+  for (auto &e : received_attributes)
+  {
+    EXPECT_TRUE(expected_attributes.find(e.first) != expected_attributes.end());
+    if (expected_attributes.find(e.first) != expected_attributes.end())
+    {
+      EXPECT_EQ(expected_attributes.find(e.first)->second, nostd::get<std::string>(e.second));
+    }
+  }
+  EXPECT_EQ(received_attributes.size(), expected_attributes.size());
+}
+
+#ifndef NO_GETENV
+TEST(ResourceTest, OtelResourceDetector)
+{
+  std::map<std::string, std::string> expected_attributes = {{"k", "v"}};
+
+  setenv("OTEL_RESOURCE_ATTRIBUTES", "k=v", 1);
+
+  OTELResourceDetector detector;
+  auto resource            = detector.Detect();
+  auto received_attributes = resource.GetAttributes();
+  for (auto &e : received_attributes)
+  {
+    EXPECT_TRUE(expected_attributes.find(e.first) != expected_attributes.end());
+    if (expected_attributes.find(e.first) != expected_attributes.end())
+    {
+      EXPECT_EQ(expected_attributes.find(e.first)->second, nostd::get<std::string>(e.second));
+    }
+  }
+  EXPECT_EQ(received_attributes.size(), expected_attributes.size());
+
+  unsetenv("OTEL_RESOURCE_ATTRIBUTES");
+}
+
+TEST(ResourceTest, OtelResourceDetectorEmptyEnv)
+{
+  std::map<std::string, std::string> expected_attributes = {};
+  unsetenv("OTEL_RESOURCE_ATTRIBUTES");
+  OTELResourceDetector detector;
+  auto resource            = detector.Detect();
+  auto received_attributes = resource.GetAttributes();
+  for (auto &e : received_attributes)
+  {
+    EXPECT_TRUE(expected_attributes.find(e.first) != expected_attributes.end());
+    if (expected_attributes.find(e.first) != expected_attributes.end())
+    {
+      EXPECT_EQ(expected_attributes.find(e.first)->second, nostd::get<std::string>(e.second));
+    }
+  }
+  EXPECT_EQ(received_attributes.size(), expected_attributes.size());
+}
+#endif