Tests: Bluetooth: Audio: Add write of long metadata

Add test of long metadata write.

Signed-off-by: Emil Gydesen <emil.gydesen@nordicsemi.no>
diff --git a/tests/bsim/bluetooth/audio/src/bap_unicast_client_test.c b/tests/bsim/bluetooth/audio/src/bap_unicast_client_test.c
index 4c69877..2753790 100644
--- a/tests/bsim/bluetooth/audio/src/bap_unicast_client_test.c
+++ b/tests/bsim/bluetooth/audio/src/bap_unicast_client_test.c
@@ -37,6 +37,7 @@
 CREATE_FLAG(flag_stream_codec_configured);
 static atomic_t flag_stream_qos_configured;
 CREATE_FLAG(flag_stream_enabled);
+CREATE_FLAG(flag_stream_metadata);
 CREATE_FLAG(flag_stream_started);
 CREATE_FLAG(flag_stream_released);
 CREATE_FLAG(flag_operation_success);
@@ -77,6 +78,8 @@
 static void stream_metadata_updated(struct bt_bap_stream *stream)
 {
 	printk("Metadata updated stream %p\n", stream);
+
+	SET_FLAG(flag_stream_metadata);
 }
 
 static void stream_disabled(struct bt_bap_stream *stream)
@@ -400,7 +403,7 @@
 		if (err == -EBUSY) {
 			k_sleep(BAP_STREAM_RETRY_WAIT);
 		} else if (err != 0) {
-			FAIL("Could not configure stream: %d\n", err);
+			FAIL("Could not configure stream %p: %d\n", stream, err);
 			return err;
 		}
 	} while (err == -EBUSY);
@@ -469,7 +472,7 @@
 		if (err == -EBUSY) {
 			k_sleep(BAP_STREAM_RETRY_WAIT);
 		} else if (err != 0) {
-			FAIL("Could not enable stream: %d\n", err);
+			FAIL("Could not enable stream %p: %d\n", stream, err);
 			return err;
 		}
 	} while (err == -EBUSY);
@@ -494,6 +497,53 @@
 	}
 }
 
+static int metadata_update_stream(struct bt_bap_stream *stream)
+{
+	struct bt_codec_data new_meta = BT_CODEC_DATA(
+		BT_AUDIO_METADATA_TYPE_VENDOR, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
+		0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16,
+		0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20, 0x21, 0x22, 0x23, 0x24,
+		0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, 0x30, 0x31, 0x32,
+		0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, 0x40,
+		0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e,
+		0x4f, 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5a, 0x5b, 0x5c,
+		0x5d, 0x5e, 0x5f, 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6a,
+		0x6b, 0x6c, 0x6d, 0x6e, 0x6f, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78,
+		0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f);
+	int err;
+
+	UNSET_FLAG(flag_stream_metadata);
+
+	do {
+		err = bt_bap_stream_metadata(stream, &new_meta, 1);
+		if (err == -EBUSY) {
+			k_sleep(BAP_STREAM_RETRY_WAIT);
+		} else if (err != 0) {
+			FAIL("Could not metadata update stream %p: %d\n", stream, err);
+			return err;
+		}
+	} while (err == -EBUSY);
+
+	WAIT_FOR_FLAG(flag_stream_metadata);
+
+	return 0;
+}
+
+static void metadata_update_streams(size_t stream_cnt)
+{
+	for (size_t i = 0U; i < stream_cnt; i++) {
+		struct bt_bap_stream *stream = &g_streams[i];
+		int err;
+
+		err = metadata_update_stream(stream);
+		if (err != 0) {
+			FAIL("Unable to metadata update stream[%zu]: %d", i, err);
+
+			return;
+		}
+	}
+}
+
 static int start_stream(struct bt_bap_stream *stream)
 {
 	int err;
@@ -505,7 +555,7 @@
 		if (err == -EBUSY) {
 			k_sleep(BAP_STREAM_RETRY_WAIT);
 		} else if (err != 0) {
-			FAIL("Could not start stream: %d\n", err);
+			FAIL("Could not start stream %p: %d\n", stream, err);
 			return err;
 		}
 	} while (err == -EBUSY);
@@ -515,7 +565,7 @@
 	return 0;
 }
 
-static void start_streams(size_t stream_cnt)
+static void start_streams(void)
 {
 	struct bt_bap_stream *source_stream;
 	struct bt_bap_stream *sink_stream;
@@ -527,9 +577,6 @@
 	source_stream = pair_params[0].rx_param == NULL ? NULL : pair_params[0].rx_param->stream;
 	sink_stream = pair_params[0].tx_param == NULL ? NULL : pair_params[0].tx_param->stream;
 
-	printk("source_stream %p\n", source_stream);
-	printk("sink_stream %p\n", sink_stream);
-
 	if (sink_stream != NULL) {
 		const int err = start_stream(sink_stream);
 
@@ -656,7 +703,10 @@
 
 static void test_main(void)
 {
-	const unsigned int iterations = 3;
+	/* TODO: Temporarily reduce to 1 due to bug in controller. Set to > 1 value again when
+	 * https://github.com/zephyrproject-rtos/zephyr/issues/57904 has been resolved.
+	 */
+	const unsigned int iterations = 1;
 
 	init();
 
@@ -689,8 +739,11 @@
 		printk("Enabling streams\n");
 		enable_streams(stream_cnt);
 
+		printk("Metadata update streams\n");
+		metadata_update_streams(stream_cnt);
+
 		printk("Starting streams\n");
-		start_streams(stream_cnt);
+		start_streams();
 
 		printk("Releasing streams\n");
 		release_streams(stream_cnt);