feat add spdlog

third_party/prometheus/pull/tests/unit/BUILD.bazel

@@ -0,0 +1,10 @@
+cc_test(
+    name = "unit",
+    srcs = glob(["*.cc"]),
+    copts = ["-Iexternal/googletest/include"],
+    linkstatic = True,
+    deps = [
+        "//pull",
+        "@com_google_googletest//:gtest_main",
+    ],
+)

third_party/prometheus/pull/tests/unit/CMakeLists.txt

@@ -0,0 +1,15 @@
+
+add_executable(prometheus_pull_test
+  exposer_test.cc
+)
+
+target_link_libraries(prometheus_pull_test
+  PRIVATE
+    ${PROJECT_NAME}::pull
+    GTest::gmock_main
+)
+
+add_test(
+  NAME prometheus_pull_test
+  COMMAND prometheus_pull_test
+)

third_party/prometheus/pull/tests/unit/exposer_test.cc

@@ -0,0 +1,25 @@
+#include "prometheus/exposer.h"
+
+#include <gtest/gtest.h>
+
+namespace prometheus {
+namespace {
+
+using namespace testing;
+
+TEST(ExposerTest, listenOnDistinctPorts) {
+  Exposer firstExposer{"0.0.0.0:0"};
+  auto firstExposerPorts = firstExposer.GetListeningPorts();
+  ASSERT_EQ(1u, firstExposerPorts.size());
+  EXPECT_NE(0, firstExposerPorts.front());
+
+  Exposer secondExposer{"0.0.0.0:0"};
+  auto secondExposerPorts = secondExposer.GetListeningPorts();
+  ASSERT_EQ(1u, secondExposerPorts.size());
+  EXPECT_NE(0, secondExposerPorts.front());
+
+  EXPECT_NE(firstExposerPorts, secondExposerPorts);
+}
+
+}  // namespace
+}  // namespace prometheus