test(zmq): add SIMD sample validation

Add `TxRxSamplesSIMD` to validate the correctness of the new ZMQ
device transmit and receive paths with int16 complex samples.
Signed-off-by: Bartosz Podrygajlo <bartosz.podrygajlo@openairinterface.org>

radio/zmq/tests/test_zmq_radio.cpp

@@ -153,6 +153,48 @@ TEST_F(ZMQTest, TxRxSamples)
   t2.join();
 }
 
+TEST_F(ZMQTest, TxRxSamplesSIMD)
+{
+  const int size = 100;
+  std::thread t1([this, size]() {
+    c16_t rx_samples[size];
+    openair0_timestamp_t rx_timestamp;
+    void *samples[1] = {rx_samples};
+    ASSERT_EQ(device1.trx_read_func(&device1, &rx_timestamp, samples, size, 1), size);
+    for (int i = 0; i < size; i++) {
+      ASSERT_EQ(rx_samples[i].r, 0);
+      ASSERT_EQ(rx_samples[i].i, 0);
+    }
+    c16_t tx_samples[size];
+    openair0_timestamp_t tx_timestamp = rx_timestamp + size;
+    for (int i = 0; i < size; i++) {
+      tx_samples[i].r = (int16_t)i;
+      tx_samples[i].i = (int16_t)(i + 1);
+    }
+    samples[0] = tx_samples;
+    ASSERT_EQ(device1.trx_write_func(&device1, tx_timestamp, samples, size, 1, 0), size);
+  });
+  std::thread t2([this, size]() {
+    c16_t rx_samples[size];
+    openair0_timestamp_t rx_timestamp;
+    void *samples[1] = {rx_samples};
+    ASSERT_EQ(device2.trx_read_func(&device2, &rx_timestamp, samples, size, 1), size);
+    for (int i = 0; i < size; i++) {
+      ASSERT_EQ(rx_samples[i].r, 0);
+      ASSERT_EQ(rx_samples[i].i, 0);
+    }
+    openair0_timestamp_t rx_timestamp2;
+    ASSERT_EQ(device2.trx_read_func(&device2, &rx_timestamp2, samples, size, 1), size);
+    for (int i = 0; i < size; i++) {
+      ASSERT_EQ(rx_samples[i].r, (int16_t)i);
+      ASSERT_EQ(rx_samples[i].i, (int16_t)(i + 1));
+    }
+    ASSERT_EQ(rx_timestamp + size, rx_timestamp2);
+  });
+  t1.join();
+  t2.join();
+}
+
 TEST_F(ZMQTest, BenchmarkThroughput)
 {
   int level = g_log->log_component[HW].level;