diff --git a/samples/bluetooth/cap_acceptor/boards/nrf5340_audio_dk_nrf5340_cpuapp.conf b/samples/bluetooth/cap_acceptor/boards/nrf5340_audio_dk_nrf5340_cpuapp.conf
new file mode 100644
index 00000000000..96dc0eb4e3b
--- /dev/null
+++ b/samples/bluetooth/cap_acceptor/boards/nrf5340_audio_dk_nrf5340_cpuapp.conf
@@ -0,0 +1,6 @@
+CONFIG_BT_BUF_EVT_RX_SIZE=255
+CONFIG_BT_BUF_ACL_RX_SIZE=255
+CONFIG_BT_BUF_ACL_TX_SIZE=251
+CONFIG_BT_BUF_CMD_TX_SIZE=255
+
+CONFIG_BT_TINYCRYPT_ECC=y
diff --git a/samples/bluetooth/cap_acceptor/boards/nrf5340dk_nrf5340_cpuapp.conf b/samples/bluetooth/cap_acceptor/boards/nrf5340dk_nrf5340_cpuapp.conf
new file mode 100644
index 00000000000..96dc0eb4e3b
--- /dev/null
+++ b/samples/bluetooth/cap_acceptor/boards/nrf5340dk_nrf5340_cpuapp.conf
@@ -0,0 +1,6 @@
+CONFIG_BT_BUF_EVT_RX_SIZE=255
+CONFIG_BT_BUF_ACL_RX_SIZE=255
+CONFIG_BT_BUF_ACL_TX_SIZE=251
+CONFIG_BT_BUF_CMD_TX_SIZE=255
+
+CONFIG_BT_TINYCRYPT_ECC=y
diff --git a/samples/bluetooth/cap_acceptor/src/cap_acceptor.h b/samples/bluetooth/cap_acceptor/src/cap_acceptor.h
index 20c8da5f1d1..7db7dec6019 100644
--- a/samples/bluetooth/cap_acceptor/src/cap_acceptor.h
+++ b/samples/bluetooth/cap_acceptor/src/cap_acceptor.h
@@ -24,6 +24,8 @@ struct peer_config {
 	struct k_sem sink_stream_sem;
 	/** ACL connection object for the peer device */
 	struct bt_conn *conn;
+	/** Current sequence number for TX */
+	uint16_t tx_seq_num;
 };
 
 /**
diff --git a/samples/bluetooth/cap_acceptor/src/cap_acceptor_unicast.c b/samples/bluetooth/cap_acceptor/src/cap_acceptor_unicast.c
index 87358f79b3e..968e46c454f 100644
--- a/samples/bluetooth/cap_acceptor/src/cap_acceptor_unicast.c
+++ b/samples/bluetooth/cap_acceptor/src/cap_acceptor_unicast.c
@@ -7,6 +7,7 @@
  *  SPDX-License-Identifier: Apache-2.0
  */
 
+#include <autoconf.h>
 #include <errno.h>
 #include <stdbool.h>
 #include <stddef.h>
@@ -22,10 +23,12 @@
 #include <zephyr/bluetooth/hci_types.h>
 #include <zephyr/bluetooth/iso.h>
 #include <zephyr/kernel.h>
+#include <zephyr/kernel/thread_stack.h>
 #include <zephyr/logging/log.h>
 #include <zephyr/logging/log_core.h>
 #include <zephyr/net/buf.h>
 #include <zephyr/sys/util.h>
+#include <zephyr/sys/util_macro.h>
 
 #include "cap_acceptor.h"
 
@@ -40,6 +43,7 @@ LOG_MODULE_REGISTER(cap_acceptor_unicast, LOG_LEVEL_INF);
 
 static const struct bt_audio_codec_qos_pref qos_pref = BT_AUDIO_CODEC_QOS_PREF(
 	UNFRAMED_SUPPORTED, PREF_PHY, RTN, LATENCY, MIN_PD, MAX_PD, MIN_PD, MAX_PD);
+uint64_t total_rx_iso_packet_count; /* This value is exposed to test code */
 
 static bool log_codec_cfg_cb(struct bt_data *data, void *user_data)
 {
@@ -290,6 +294,7 @@ static void unicast_stream_enabled_cb(struct bt_bap_stream *bap_stream)
 static void unicast_stream_started_cb(struct bt_bap_stream *bap_stream)
 {
 	LOG_INF("Started bap_stream %p", bap_stream);
+	total_rx_iso_packet_count = 0U;
 }
 
 static void unicast_stream_metadata_updated_cb(struct bt_bap_stream *bap_stream)
@@ -320,7 +325,63 @@ static void unicast_stream_released_cb(struct bt_bap_stream *bap_stream)
 static void unicast_stream_recv_cb(struct bt_bap_stream *bap_stream,
 				   const struct bt_iso_recv_info *info, struct net_buf *buf)
 {
-	/* TODO: Add test code */
+	/* Triggered every time we receive an HCI data packet from the controller.
+	 * A call to this does not indicate valid data
+	 * (see the `info->flags` for which flags to check),
+	 */
+
+	if ((total_rx_iso_packet_count % 100U) == 0U) {
+		LOG_INF("Received %llu HCI ISO data packets", total_rx_iso_packet_count);
+	}
+
+	total_rx_iso_packet_count++;
+}
+
+static void tx_thread_func(void *arg1, void *arg2, void *arg3)
+{
+	NET_BUF_POOL_FIXED_DEFINE(tx_pool, CONFIG_BT_ISO_TX_BUF_COUNT,
+				  BT_ISO_SDU_BUF_SIZE(CONFIG_BT_ISO_TX_MTU),
+				  CONFIG_BT_CONN_TX_USER_DATA_SIZE, NULL);
+	static uint8_t data[CONFIG_BT_ISO_TX_MTU];
+	struct peer_config *peer = arg1;
+	struct bt_cap_stream *cap_stream = &peer->source_stream;
+	struct bt_bap_stream *bap_stream = &cap_stream->bap_stream;
+
+	for (size_t i = 0U; i < ARRAY_SIZE(data); i++) {
+		data[i] = (uint8_t)i;
+	}
+
+	while (true) {
+		/* No-op if stream is not configured */
+		if (bap_stream->ep != NULL) {
+			struct bt_bap_ep_info ep_info;
+			int err;
+
+			err = bt_bap_ep_get_info(bap_stream->ep, &ep_info);
+			if (err == 0) {
+				if (ep_info.state == BT_BAP_EP_STATE_STREAMING) {
+					struct net_buf *buf;
+
+					buf = net_buf_alloc(&tx_pool, K_FOREVER);
+					net_buf_reserve(buf, BT_ISO_CHAN_SEND_RESERVE);
+
+					net_buf_add_mem(buf, data, bap_stream->qos->sdu);
+
+					err = bt_cap_stream_send(cap_stream, buf, peer->tx_seq_num);
+					if (err == 0) {
+						peer->tx_seq_num++;
+						continue; /* Attempt to send again ASAP */
+					} else {
+						LOG_ERR("Unable to send: %d", err);
+						net_buf_unref(buf);
+					}
+				}
+			}
+		}
+
+		/* In case of any errors, retry with a delay */
+		k_sleep(K_MSEC(100));
+	}
 }
 
 int init_cap_acceptor_unicast(struct peer_config *peer)
@@ -347,10 +408,28 @@ int init_cap_acceptor_unicast(struct peer_config *peer)
 
 			return -ENOEXEC;
 		}
+
+		cbs_registered = true;
 	}
 
 	bt_cap_stream_ops_register(&peer->source_stream, &unicast_stream_ops);
 	bt_cap_stream_ops_register(&peer->sink_stream, &unicast_stream_ops);
 
+	if (IS_ENABLED(CONFIG_BT_ASCS_ASE_SRC)) {
+		static bool thread_started;
+
+		if (!thread_started) {
+			static K_KERNEL_STACK_DEFINE(tx_thread_stack, 1024);
+			const int tx_thread_prio = K_PRIO_PREEMPT(5);
+			static struct k_thread tx_thread;
+
+			k_thread_create(&tx_thread, tx_thread_stack,
+					K_KERNEL_STACK_SIZEOF(tx_thread_stack), tx_thread_func,
+					peer, NULL, NULL, tx_thread_prio, 0, K_NO_WAIT);
+			k_thread_name_set(&tx_thread, "TX thread");
+			thread_started = true;
+		}
+	}
+
 	return 0;
 }
diff --git a/samples/bluetooth/cap_initiator/boards/nrf5340_audio_dk_nrf5340_cpuapp.conf b/samples/bluetooth/cap_initiator/boards/nrf5340_audio_dk_nrf5340_cpuapp.conf
new file mode 100644
index 00000000000..96dc0eb4e3b
--- /dev/null
+++ b/samples/bluetooth/cap_initiator/boards/nrf5340_audio_dk_nrf5340_cpuapp.conf
@@ -0,0 +1,6 @@
+CONFIG_BT_BUF_EVT_RX_SIZE=255
+CONFIG_BT_BUF_ACL_RX_SIZE=255
+CONFIG_BT_BUF_ACL_TX_SIZE=251
+CONFIG_BT_BUF_CMD_TX_SIZE=255
+
+CONFIG_BT_TINYCRYPT_ECC=y
diff --git a/samples/bluetooth/cap_initiator/boards/nrf5340dk_nrf5340_cpuapp.conf b/samples/bluetooth/cap_initiator/boards/nrf5340dk_nrf5340_cpuapp.conf
new file mode 100644
index 00000000000..96dc0eb4e3b
--- /dev/null
+++ b/samples/bluetooth/cap_initiator/boards/nrf5340dk_nrf5340_cpuapp.conf
@@ -0,0 +1,6 @@
+CONFIG_BT_BUF_EVT_RX_SIZE=255
+CONFIG_BT_BUF_ACL_RX_SIZE=255
+CONFIG_BT_BUF_ACL_TX_SIZE=251
+CONFIG_BT_BUF_CMD_TX_SIZE=255
+
+CONFIG_BT_TINYCRYPT_ECC=y
diff --git a/samples/bluetooth/cap_initiator/src/cap_initiator_unicast.c b/samples/bluetooth/cap_initiator/src/cap_initiator_unicast.c
index 76be7ef0dad..030fe3835c3 100644
--- a/samples/bluetooth/cap_initiator/src/cap_initiator_unicast.c
+++ b/samples/bluetooth/cap_initiator/src/cap_initiator_unicast.c
@@ -24,10 +24,12 @@
 #include <zephyr/bluetooth/iso.h>
 #include <zephyr/bluetooth/uuid.h>
 #include <zephyr/kernel.h>
+#include <zephyr/kernel/thread_stack.h>
 #include <zephyr/logging/log.h>
 #include <zephyr/logging/log_core.h>
 #include <zephyr/net/buf.h>
 #include <zephyr/sys/byteorder.h>
+#include <zephyr/sys/util.h>
 #include <zephyr/sys/util_macro.h>
 
 #include "cap_initiator.h"
@@ -42,6 +44,7 @@ LOG_MODULE_REGISTER(cap_initiator_unicast, LOG_LEVEL_INF);
 static struct bt_bap_lc3_preset unicast_preset_16_2_1 = BT_BAP_LC3_UNICAST_PRESET_16_2_1(
 	BT_AUDIO_LOCATION_MONO_AUDIO, BT_AUDIO_CONTEXT_TYPE_UNSPECIFIED);
 static struct bt_bap_unicast_group *unicast_group;
+uint64_t total_rx_iso_packet_count; /* This value is exposed to test code */
 
 /** Struct to contain information for a specific peer (CAP) device */
 struct peer_config {
@@ -59,6 +62,8 @@ struct peer_config {
 	struct bt_bap_ep *sink_ep;
 	/** ACL connection object for the peer device */
 	struct bt_conn *conn;
+	/** Current sequence number for TX */
+	uint16_t tx_seq_num;
 };
 
 /* TODO: Expand to multiple ACL connections */
@@ -97,6 +102,7 @@ static void unicast_stream_enabled_cb(struct bt_bap_stream *stream)
 static void unicast_stream_started_cb(struct bt_bap_stream *stream)
 {
 	LOG_INF("Started stream %p", stream);
+	total_rx_iso_packet_count = 0U;
 }
 
 static void unicast_stream_metadata_updated_cb(struct bt_bap_stream *stream)
@@ -128,7 +134,16 @@ static void unicast_stream_released_cb(struct bt_bap_stream *stream)
 static void unicast_stream_recv_cb(struct bt_bap_stream *stream,
 				   const struct bt_iso_recv_info *info, struct net_buf *buf)
 {
-	/* TODO: Add test code */
+	/* Triggered every time we receive an HCI data packet from the controller.
+	 * A call to this does not indicate valid data
+	 * (see the `info->flags` for which flags to check),
+	 */
+
+	if ((total_rx_iso_packet_count % 100U) == 0U) {
+		LOG_INF("Received %llu HCI ISO data packets", total_rx_iso_packet_count);
+	}
+
+	total_rx_iso_packet_count++;
 }
 
 static struct bt_bap_stream_ops unicast_stream_ops = {
@@ -143,6 +158,52 @@ static struct bt_bap_stream_ops unicast_stream_ops = {
 	.recv = unicast_stream_recv_cb,
 };
 
+static void tx_thread_func(void *arg1, void *arg2, void *arg3)
+{
+	NET_BUF_POOL_FIXED_DEFINE(tx_pool, CONFIG_BT_ISO_TX_BUF_COUNT,
+				  BT_ISO_SDU_BUF_SIZE(CONFIG_BT_ISO_TX_MTU),
+				  CONFIG_BT_CONN_TX_USER_DATA_SIZE, NULL);
+	static uint8_t data[CONFIG_BT_ISO_TX_MTU];
+	struct bt_cap_stream *cap_stream = &peer.sink_stream;
+	struct bt_bap_stream *bap_stream = &cap_stream->bap_stream;
+
+	for (size_t i = 0U; i < ARRAY_SIZE(data); i++) {
+		data[i] = (uint8_t)i;
+	}
+
+	while (true) {
+		/* No-op if stream is not configured */
+		if (bap_stream->ep != NULL) {
+			struct bt_bap_ep_info ep_info;
+			int err;
+
+			err = bt_bap_ep_get_info(bap_stream->ep, &ep_info);
+			if (err == 0) {
+				if (ep_info.state == BT_BAP_EP_STATE_STREAMING) {
+					struct net_buf *buf;
+
+					buf = net_buf_alloc(&tx_pool, K_FOREVER);
+					net_buf_reserve(buf, BT_ISO_CHAN_SEND_RESERVE);
+
+					net_buf_add_mem(buf, data, bap_stream->qos->sdu);
+
+					err = bt_cap_stream_send(cap_stream, buf, peer.tx_seq_num);
+					if (err == 0) {
+						peer.tx_seq_num++;
+						continue; /* Attempt to send again ASAP */
+					} else {
+						LOG_ERR("Unable to send: %d", err);
+						net_buf_unref(buf);
+					}
+				}
+			}
+		}
+
+		/* In case of any errors, retry with a delay */
+		k_sleep(K_MSEC(100));
+	}
+}
+
 static bool log_codec_cb(struct bt_data *data, void *user_data)
 {
 	const char *str = (const char *)user_data;
@@ -674,6 +735,23 @@ static int init_cap_initiator(void)
 	k_sem_init(&peer.source_stream_sem, 0, 1);
 	k_sem_init(&peer.sink_stream_sem, 0, 1);
 
+	if (IS_ENABLED(CONFIG_BT_BAP_UNICAST_CLIENT_ASE_SNK)) {
+		static bool thread_started;
+
+		if (!thread_started) {
+			static K_KERNEL_STACK_DEFINE(tx_thread_stack, 1024);
+			const int tx_thread_prio = K_PRIO_PREEMPT(5);
+			static struct k_thread tx_thread;
+
+			k_thread_create(&tx_thread, tx_thread_stack,
+					K_KERNEL_STACK_SIZEOF(tx_thread_stack), tx_thread_func,
+					net_buf_pull_be16, NULL, NULL, tx_thread_prio, 0,
+					K_NO_WAIT);
+			k_thread_name_set(&tx_thread, "TX thread");
+			thread_started = true;
+		}
+	}
+
 	return 0;
 }
 
diff --git a/tests/bsim/bluetooth/audio_samples/cap/acceptor/CMakeLists.txt b/tests/bsim/bluetooth/audio_samples/cap/acceptor/CMakeLists.txt
new file mode 100644
index 00000000000..e446554ca73
--- /dev/null
+++ b/tests/bsim/bluetooth/audio_samples/cap/acceptor/CMakeLists.txt
@@ -0,0 +1,25 @@
+# SPDX-License-Identifier: Apache-2.0
+
+cmake_minimum_required(VERSION 3.20.0)
+
+find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE})
+project(cap_acceptor_self_tets)
+
+set(cap_acceptor_path ${ZEPHYR_BASE}/samples/bluetooth/cap_acceptor)
+
+target_sources(app PRIVATE
+  ${cap_acceptor_path}/src/main.c
+  ${cap_acceptor_path}/src/cap_acceptor_unicast.c
+)
+
+target_sources(app PRIVATE
+	src/cap_acceptor_sample_test.c
+	src/test_main.c
+)
+
+zephyr_library_include_directories(${ZEPHYR_BASE}/samples/bluetooth)
+
+zephyr_include_directories(
+  ${BSIM_COMPONENTS_PATH}/libUtilv1/src/
+  ${BSIM_COMPONENTS_PATH}/libPhyComv1/src/
+  )
diff --git a/tests/bsim/bluetooth/audio_samples/cap/acceptor/Kconfig.sysbuild b/tests/bsim/bluetooth/audio_samples/cap/acceptor/Kconfig.sysbuild
new file mode 100644
index 00000000000..3b2c35e65c5
--- /dev/null
+++ b/tests/bsim/bluetooth/audio_samples/cap/acceptor/Kconfig.sysbuild
@@ -0,0 +1,10 @@
+# Copyright (c) 2023-2024 Nordic Semiconductor ASA
+# SPDX-License-Identifier: Apache-2.0
+
+source "${ZEPHYR_BASE}/samples/bluetooth/cap_acceptor/Kconfig.sysbuild"
+
+config NATIVE_SIMULATOR_PRIMARY_MCU_INDEX
+	int
+	# Let's pass the test arguments to the application MCU test
+	# otherwise by default they would have gone to the net core.
+	default 0 if $(BOARD_TARGET_STRING) = "NRF5340BSIM_NRF5340_CPUAPP"
diff --git a/tests/bsim/bluetooth/audio_samples/cap/acceptor/prj.conf b/tests/bsim/bluetooth/audio_samples/cap/acceptor/prj.conf
new file mode 100644
index 00000000000..e8122ebe95f
--- /dev/null
+++ b/tests/bsim/bluetooth/audio_samples/cap/acceptor/prj.conf
@@ -0,0 +1,2 @@
+# Please build using the sample configuration file:
+# ${ZEPHYR_BASE}/samples/bluetooth/cap_acceptor/prj.conf
diff --git a/tests/bsim/bluetooth/audio_samples/cap/acceptor/src/cap_acceptor_sample_test.c b/tests/bsim/bluetooth/audio_samples/cap/acceptor/src/cap_acceptor_sample_test.c
new file mode 100644
index 00000000000..2f3260dfd2e
--- /dev/null
+++ b/tests/bsim/bluetooth/audio_samples/cap/acceptor/src/cap_acceptor_sample_test.c
@@ -0,0 +1,77 @@
+/*
+ * Copyright (c) 2023-2024 Nordic Semiconductor ASA
+ * Copyright (c) 2017-2019 Oticon A/S
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include "bs_types.h"
+#include "bs_tracing.h"
+#include "bs_utils.h"
+#include "time_machine.h"
+#include "bstests.h"
+
+#define WAIT_TIME 10 /* Seconds */
+
+#define PASS_THRESHOLD 100 /* Audio packets */
+
+extern enum bst_result_t bst_result;
+
+#define FAIL(...)                                                                                  \
+	do {                                                                                       \
+		bst_result = Failed;                                                               \
+		bs_trace_error_time_line(__VA_ARGS__);                                             \
+	} while (0)
+
+#define PASS(...)                                                                                  \
+	do {                                                                                       \
+		bst_result = Passed;                                                               \
+		bs_trace_info_time(1, __VA_ARGS__);                                                \
+	} while (0)
+
+static void test_cap_acceptor_sample_init(void)
+{
+	/* We set an absolute deadline in 30 seconds */
+	bst_ticker_set_next_tick_absolute(WAIT_TIME * 1e6);
+	bst_result = In_progress;
+}
+
+static void test_cap_acceptor_sample_tick(bs_time_t HW_device_time)
+{
+	/*
+	 * If in WAIT_TIME seconds we did not get enough packets through
+	 * we consider the test failed
+	 */
+
+	extern uint64_t total_rx_iso_packet_count;
+
+	bs_trace_info_time(2, "%" PRIu64 " packets received, expected >= %i\n",
+			   total_rx_iso_packet_count, PASS_THRESHOLD);
+
+	if (total_rx_iso_packet_count >= PASS_THRESHOLD) {
+		PASS("cap_acceptor PASSED\n");
+	} else {
+		FAIL("cap_acceptor FAILED (Did not pass after %i seconds)\n", WAIT_TIME);
+	}
+}
+
+static const struct bst_test_instance test_sample[] = {
+	{
+		.test_id = "cap_acceptor",
+		.test_descr = "Test based on the unicast client sample. "
+			      "It expects to be connected to a compatible unicast server, "
+			      "waits for " STR(WAIT_TIME) " seconds, and checks how "
+			      "many audio packets have been received correctly",
+		.test_post_init_f = test_cap_acceptor_sample_init,
+		.test_tick_f = test_cap_acceptor_sample_tick,
+	},
+	BSTEST_END_MARKER
+};
+
+/* TODO: Add test of reconnection */
+
+struct bst_test_list *test_cap_acceptor_sample_install(struct bst_test_list *tests)
+{
+	tests = bst_add_tests(tests, test_sample);
+	return tests;
+}
diff --git a/tests/bsim/bluetooth/audio_samples/cap/acceptor/src/test_main.c b/tests/bsim/bluetooth/audio_samples/cap/acceptor/src/test_main.c
new file mode 100644
index 00000000000..fa6a7c977ce
--- /dev/null
+++ b/tests/bsim/bluetooth/audio_samples/cap/acceptor/src/test_main.c
@@ -0,0 +1,14 @@
+/*
+ * Copyright (c) 2023-2024 Nordic Semiconductor ASA
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include "bstests.h"
+
+extern struct bst_test_list *test_cap_acceptor_sample_install(struct bst_test_list *tests);
+
+bst_test_install_t test_installers[] = {
+	test_cap_acceptor_sample_install,
+	NULL
+};
diff --git a/tests/bsim/bluetooth/audio_samples/cap/acceptor/sysbuild.cmake b/tests/bsim/bluetooth/audio_samples/cap/acceptor/sysbuild.cmake
new file mode 100644
index 00000000000..be3e589dd35
--- /dev/null
+++ b/tests/bsim/bluetooth/audio_samples/cap/acceptor/sysbuild.cmake
@@ -0,0 +1,6 @@
+# Copyright (c) 2023-2024 Nordic Semiconductor ASA
+# SPDX-License-Identifier: Apache-2.0
+
+include(${ZEPHYR_BASE}/samples/bluetooth/cap_acceptor/sysbuild.cmake)
+
+native_simulator_set_primary_mcu_index(${DEFAULT_IMAGE} ${NET_APP})
diff --git a/tests/bsim/bluetooth/audio_samples/cap/initiator/CMakeLists.txt b/tests/bsim/bluetooth/audio_samples/cap/initiator/CMakeLists.txt
new file mode 100644
index 00000000000..786575379c7
--- /dev/null
+++ b/tests/bsim/bluetooth/audio_samples/cap/initiator/CMakeLists.txt
@@ -0,0 +1,25 @@
+# SPDX-License-Identifier: Apache-2.0
+
+cmake_minimum_required(VERSION 3.20.0)
+
+find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE})
+project(cap_initiator_self_tets)
+
+set(cap_initiator_path ${ZEPHYR_BASE}/samples/bluetooth/cap_initiator)
+
+target_sources(app PRIVATE
+  ${cap_initiator_path}/src/main.c
+  ${cap_initiator_path}/src/cap_initiator_unicast.c
+)
+
+target_sources(app PRIVATE
+	src/cap_initiator_sample_test.c
+	src/test_main.c
+)
+
+zephyr_library_include_directories(${ZEPHYR_BASE}/samples/bluetooth)
+
+zephyr_include_directories(
+  ${BSIM_COMPONENTS_PATH}/libUtilv1/src/
+  ${BSIM_COMPONENTS_PATH}/libPhyComv1/src/
+  )
diff --git a/tests/bsim/bluetooth/audio_samples/cap/initiator/Kconfig.sysbuild b/tests/bsim/bluetooth/audio_samples/cap/initiator/Kconfig.sysbuild
new file mode 100644
index 00000000000..c9f3abf294f
--- /dev/null
+++ b/tests/bsim/bluetooth/audio_samples/cap/initiator/Kconfig.sysbuild
@@ -0,0 +1,10 @@
+# Copyright (c) 2023-2024 Nordic Semiconductor ASA
+# SPDX-License-Identifier: Apache-2.0
+
+source "${ZEPHYR_BASE}/samples/bluetooth/cap_initiator/Kconfig.sysbuild"
+
+config NATIVE_SIMULATOR_PRIMARY_MCU_INDEX
+	int
+	# Let's pass the test arguments to the application MCU test
+	# otherwise by default they would have gone to the net core.
+	default 0 if $(BOARD_TARGET_STRING) = "NRF5340BSIM_NRF5340_CPUAPP"
diff --git a/tests/bsim/bluetooth/audio_samples/cap/initiator/prj.conf b/tests/bsim/bluetooth/audio_samples/cap/initiator/prj.conf
new file mode 100644
index 00000000000..ab925ee17c0
--- /dev/null
+++ b/tests/bsim/bluetooth/audio_samples/cap/initiator/prj.conf
@@ -0,0 +1,2 @@
+# Please build using the sample configuration file:
+# ${ZEPHYR_BASE}/samples/bluetooth/cap_initiator/prj.conf
diff --git a/tests/bsim/bluetooth/audio_samples/cap/initiator/src/cap_initiator_sample_test.c b/tests/bsim/bluetooth/audio_samples/cap/initiator/src/cap_initiator_sample_test.c
new file mode 100644
index 00000000000..e6defdbad02
--- /dev/null
+++ b/tests/bsim/bluetooth/audio_samples/cap/initiator/src/cap_initiator_sample_test.c
@@ -0,0 +1,76 @@
+/*
+ * Copyright (c) 2023-2024 Nordic Semiconductor ASA
+ * Copyright (c) 2017-2019 Oticon A/S
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include "bs_types.h"
+#include "bs_tracing.h"
+#include "bs_utils.h"
+#include "time_machine.h"
+#include "bstests.h"
+
+#define WAIT_TIME 10 /* Seconds */
+
+#define PASS_THRESHOLD 100 /* Audio packets */
+
+extern enum bst_result_t bst_result;
+
+#define FAIL(...)                                                                                  \
+	do {                                                                                       \
+		bst_result = Failed;                                                               \
+		bs_trace_error_time_line(__VA_ARGS__);                                             \
+	} while (0)
+
+#define PASS(...)                                                                                  \
+	do {                                                                                       \
+		bst_result = Passed;                                                               \
+		bs_trace_info_time(1, __VA_ARGS__);                                                \
+	} while (0)
+
+static void test_cap_initiator_sample_init(void)
+{
+	bst_ticker_set_next_tick_absolute(WAIT_TIME * 1e6);
+	bst_result = In_progress;
+}
+
+static void test_cap_initiator_sample_tick(bs_time_t HW_device_time)
+{
+	/*
+	 * If in WAIT_TIME seconds we did not get enough packets through
+	 * we consider the test failed
+	 */
+
+	extern uint64_t total_rx_iso_packet_count;
+
+	bs_trace_info_time(2, "%" PRIu64 " packets received, expected >= %i\n",
+			   total_rx_iso_packet_count, PASS_THRESHOLD);
+
+	if (total_rx_iso_packet_count >= PASS_THRESHOLD) {
+		PASS("cap_initiator PASSED\n");
+	} else {
+		FAIL("cap_initiator FAILED (Did not pass after %i seconds)\n", WAIT_TIME);
+	}
+}
+
+static const struct bst_test_instance test_sample[] = {
+	{
+		.test_id = "cap_initiator",
+		.test_descr = "Test based on the unicast client sample. "
+			      "It expects to be connected to a compatible unicast server, "
+			      "waits for " STR(WAIT_TIME) " seconds, and checks how "
+			      "many audio packets have been received correctly",
+		.test_post_init_f = test_cap_initiator_sample_init,
+		.test_tick_f = test_cap_initiator_sample_tick,
+	},
+	BSTEST_END_MARKER
+};
+
+/* TODO: Add test of reconnection */
+
+struct bst_test_list *test_cap_initiator_sample_install(struct bst_test_list *tests)
+{
+	tests = bst_add_tests(tests, test_sample);
+	return tests;
+}
diff --git a/tests/bsim/bluetooth/audio_samples/cap/initiator/src/test_main.c b/tests/bsim/bluetooth/audio_samples/cap/initiator/src/test_main.c
new file mode 100644
index 00000000000..3aa6fac9b02
--- /dev/null
+++ b/tests/bsim/bluetooth/audio_samples/cap/initiator/src/test_main.c
@@ -0,0 +1,11 @@
+/*
+ * Copyright (c) 2023-2024 Nordic Semiconductor ASA
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include "bstests.h"
+
+extern struct bst_test_list *test_cap_initiator_sample_install(struct bst_test_list *tests);
+
+bst_test_install_t test_installers[] = {test_cap_initiator_sample_install, NULL};
diff --git a/tests/bsim/bluetooth/audio_samples/cap/initiator/sysbuild.cmake b/tests/bsim/bluetooth/audio_samples/cap/initiator/sysbuild.cmake
new file mode 100644
index 00000000000..185eb396b01
--- /dev/null
+++ b/tests/bsim/bluetooth/audio_samples/cap/initiator/sysbuild.cmake
@@ -0,0 +1,6 @@
+# Copyright (c) 2023-2024 Nordic Semiconductor ASA
+# SPDX-License-Identifier: Apache-2.0
+
+include(${ZEPHYR_BASE}/samples/bluetooth/cap_initiator/sysbuild.cmake)
+
+native_simulator_set_primary_mcu_index(${DEFAULT_IMAGE} ${NET_APP})
diff --git a/tests/bsim/bluetooth/audio_samples/cap/tests_scripts/cap_unicast.sh b/tests/bsim/bluetooth/audio_samples/cap/tests_scripts/cap_unicast.sh
new file mode 100755
index 00000000000..389ac0182b3
--- /dev/null
+++ b/tests/bsim/bluetooth/audio_samples/cap/tests_scripts/cap_unicast.sh
@@ -0,0 +1,26 @@
+#!/usr/bin/env bash
+# Copyright 2023-2024 Nordic Semiconductor ASA
+# SPDX-License-Identifier: Apache-2.0
+
+# Simple selfchecking test for the CAP Acceptor sample.
+# It relies on the bs_tests hooks to register a test timer callback, which after a deadline
+# will check how many audio packets the unicast client has received, and if over a threshold
+# it considers the test passed
+
+simulation_id="cap_unicast_test"
+verbosity_level=2
+
+source ${ZEPHYR_BASE}/tests/bsim/sh_common.source
+
+cd ${BSIM_OUT_PATH}/bin
+
+Execute ./bs_${BOARD_TS}_tests_bsim_bluetooth_audio_samples_cap_initiator_prj_conf \
+  -v=${verbosity_level} -s=${simulation_id} -d=0 -RealEncryption=1 -testid=cap_initiator
+
+Execute ./bs_${BOARD_TS}_tests_bsim_bluetooth_audio_samples_cap_acceptor_prj_conf \
+  -v=${verbosity_level} -s=${simulation_id} -d=1 -RealEncryption=1 -testid=cap_acceptor
+
+Execute ./bs_2G4_phy_v1 -v=${verbosity_level} -s=${simulation_id} \
+  -D=2 -sim_length=20e6 $@ -argschannel -at=40
+
+wait_for_background_jobs #Wait for all programs in background and return != 0 if any fails
diff --git a/tests/bsim/bluetooth/audio_samples/compile.sh b/tests/bsim/bluetooth/audio_samples/compile.sh
index b5b19f325f9..1bec1bb8319 100755
--- a/tests/bsim/bluetooth/audio_samples/compile.sh
+++ b/tests/bsim/bluetooth/audio_samples/compile.sh
@@ -22,6 +22,16 @@ if [ "${BOARD_TS}" == "nrf5340bsim_nrf5340_cpuapp" ]; then
   app=tests/bsim/bluetooth/audio_samples/bap_broadcast_sink sysbuild=1 \
     conf_file=${ZEPHYR_BASE}/samples/bluetooth/bap_broadcast_sink/prj.conf \
     exe_name=bs_${BOARD_TS}_${app}_prj_conf sysbuild=1 compile
+  app=tests/bsim/bluetooth/audio_samples/cap/initiator \
+    sample=${ZEPHYR_BASE}/samples/bluetooth/cap_initiator \
+    conf_file=${sample}/prj.conf \
+    conf_overlay=${sample}/boards/nrf5340_audio_dk_nrf5340_cpuapp.conf \
+    exe_name=bs_${BOARD_TS}_${app}_prj_conf sysbuild=1 compile
+  app=tests/bsim/bluetooth/audio_samples/cap/acceptor \
+    sample=${ZEPHYR_BASE}/samples/bluetooth/cap_acceptor \
+    conf_file=${sample}/prj.conf \
+    conf_overlay=${sample}/boards/nrf5340_audio_dk_nrf5340_cpuapp.conf \
+    exe_name=bs_${BOARD_TS}_${app}_prj_conf sysbuild=1 compile
 else
   app=samples/bluetooth/bap_unicast_server conf_overlay=overlay-bt_ll_sw_split.conf \
     exe_name=bs_${BOARD_TS}_${app}_prj_conf sysbuild=1 compile
@@ -36,6 +46,16 @@ else
     conf_file=${ZEPHYR_BASE}/samples/bluetooth/bap_broadcast_sink/prj.conf \
     conf_overlay=${ZEPHYR_BASE}/samples/bluetooth/bap_broadcast_sink/overlay-bt_ll_sw_split.conf \
     exe_name=bs_${BOARD_TS}_${app}_prj_conf sysbuild=1 compile
+  app=tests/bsim/bluetooth/audio_samples/cap/initiator \
+    sample=${ZEPHYR_BASE}/samples/bluetooth/cap_initiator \
+    conf_file=${sample}/prj.conf \
+    conf_overlay=${sample}/overlay-bt_ll_sw_split.conf \
+    exe_name=bs_${BOARD_TS}_${app}_prj_conf sysbuild=1 compile
+  app=tests/bsim/bluetooth/audio_samples/cap/acceptor \
+    sample=${ZEPHYR_BASE}/samples/bluetooth/cap_acceptor \
+    conf_file=${sample}/prj.conf \
+    conf_overlay=${sample}/overlay-bt_ll_sw_split.conf \
+    exe_name=bs_${BOARD_TS}_${app}_prj_conf sysbuild=1 compile
 fi
 
 wait_for_background_jobs