diff --git a/components/daikin_rotex_uart/test/ daikin_rotex_uart_test.cpp b/components/daikin_rotex_uart/test/ daikin_rotex_uart_test.cpp
new file mode 100644
index 0000000..2172432
--- /dev/null
+++ b/components/daikin_rotex_uart/test/ daikin_rotex_uart_test.cpp	
@@ -0,0 +1,25 @@
+#include <gtest/gtest.h>
+#include "components/daikin_rotex_uart/daikin_rotex_uart.h"
+
+using namespace esphome::daikin_rotex_uart;
+
+TEST(DaikinRotexUART, TestSendData) {
+    DaikinRotexUART device;
+    std::vector<uint8_t> data_to_send = {0x01, 0x02, 0x03};
+  
+    device.send_data(data_to_send);
+
+    ASSERT_EQ(data_to_send.size(), 3);
+}
+
+TEST(DaikinRotexUART, TestReceiveData) {
+    DaikinRotexUART device;
+  
+    std::vector<uint8_t> simulated_received = {0x0A, 0x0B, 0x0C};
+    for (auto byte : simulated_received) {
+        device.write(byte);
+    }
+
+    auto received_data = device.receive_data();
+    ASSERT_EQ(received_data, simulated_received);
+}
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