--- /dev/null	2025-08-20 16:29:02.164000374 +0000
+++ b/smoke_test.cc	2025-08-20 21:00:53.000000000 +0000
@@ -0,0 +1,38 @@
+#include <gtest/gtest.h>
+
+#include <memory>
+#include <sstream>
+#include <string>
+
+#include "rapids_logger/logger.hpp"
+
+struct LoggerTest : public ::testing::Test {
+  LoggerTest()
+      : oss{},
+        logger_{"logger_test",
+                {std::make_shared<rapids_logger::ostream_sink_mt>(oss)}} {
+    // Remove extra formatting to simplify validation of outputs.
+    logger_.set_pattern("%v");
+  }
+
+  void clear_sink() { oss.str(""); }
+  std::string sink_content() { return oss.str(); }
+
+  std::ostringstream oss;
+  rapids_logger::logger logger_;
+};
+
+TEST_F(LoggerTest, DefaultLevel) {
+  // The default level should not change without suitable warning to consumers.
+  EXPECT_EQ(logger_.level(), rapids_logger::level_enum::info);
+}
+
+TEST_F(LoggerTest, DefaultLevelLogs) {
+  logger_.trace("trace");
+  logger_.debug("debug");
+  logger_.info("info");
+  logger_.warn("warn");
+  logger_.error("error");
+  logger_.critical("critical");
+  EXPECT_EQ(this->sink_content(), "info\nwarn\nerror\ncritical\n");
+}