Prometheus unit test

exporters/prometheus/BUILD

@@ -142,3 +142,64 @@ cc_library(
  "@com_github_jupp0r_prometheus_cpp//pull",
  ],
 )
+
+cc_library(
+ name = "prometheus_test_helper",
+ hdrs = [
+ "test/prometheus_test_helper.h",
+ ],
+ tags = ["prometheus"],
+ deps = [
+ "//api",
+ "//sdk:headers",
+ "//sdk/src/trace",
+ ],
+)
+
+cc_test(
+ name = "prometheus_exporter_test",
+ srcs = [
+ "test/exporter_test.cc",
+ ],
+ tags = [
+ "prometheus",
+ "test",
+ ],
+ deps = [
+ ":prometheus_exporter",
+ ":prometheus_test_helper",
+ "@com_google_googletest//:gtest_main",
+ ],
+)
+
+cc_test(
+ name = "prometheus_collector_test",
+ srcs = [
+ "test/collector_test.cc",
+ ],
+ tags = [
+ "prometheus",
+ "test",
+ ],
+ deps = [
+ ":prometheus_collector",
+ ":prometheus_test_helper",
+ "@com_google_googletest//:gtest_main",
+ ],
+)
+
+cc_test(
+ name = "prometheus_exporter_utils_test",
+ srcs = [
+ "test/exporter_utils_test.cc",
+ ],
+ tags = [
+ "prometheus",
+ "test",
+ ],
+ deps = [
+ ":prometheus_exporter_utils",
+ ":prometheus_test_helper",
+ "@com_google_googletest//:gtest_main",
+ ],
+)

exporters/prometheus/test/CMakeLists.txt

@@ -10,4 +10,15 @@ if(WITH_METRICS_PREVIEW)
  TEST_PREFIX exporter.
  TEST_LIST ${testname})
  endforeach()
+else()
+ foreach(testname exporter_test collector_test exporter_utils_test)
+ add_executable(${testname} "${testname}.cc")
+ target_link_libraries(
+ ${testname} ${GTEST_BOTH_LIBRARIES} ${CMAKE_THREAD_LIBS_INIT}
+ prometheus_exporter prometheus-cpp::pull)
+ gtest_add_tests(
+ TARGET ${testname}
+ TEST_PREFIX exporter.
+ TEST_LIST ${testname})
+ endforeach()
 endif()