Fix happy path test.

Author: rubidijum

testing/unit/channel_sounding_behavior/src/error_handling.c

@@ -348,7 +348,7 @@ static struct net_buf test_buf = {
 
 // static struct bt_conn test_conn;
 
-ZTEST(channel_sounding_tests_error_handling, test_buffer_too_short)
+ZTEST(channel_sounding_tests_error_handling, test_bt_hci_le_cs_read_remote_fae_table_complete_invalid_buf_size_fail)
 {
 	// Setup
 	test_buf.len = sizeof(struct bt_hci_evt_le_cs_read_remote_fae_table_complete) - 1;
@@ -360,7 +360,7 @@ ZTEST(channel_sounding_tests_error_handling, test_buffer_too_short)
 	zassert_equal(notify_remote_cs_fae_table_fake.call_count, 0, "Expected notify_remote_cs_fae_table not to be called");
 }
 
-ZTEST(channel_sounding_tests_error_handling, test_evt_status_failure)
+ZTEST(channel_sounding_tests_error_handling, test_bt_hci_le_cs_read_remote_fae_table_complete_evt_status_fail)
 {
 	struct bt_hci_evt_le_cs_read_remote_fae_table_complete *evt;
 
@@ -375,7 +375,7 @@ ZTEST(channel_sounding_tests_error_handling, test_evt_status_failure)
 	zassert_equal(notify_remote_cs_fae_table_fake.call_count, 0, "Expected notify_remote_cs_fae_table not to be called");
 }
 
-ZTEST(channel_sounding_tests_error_handling, test_conn_lookup_failure)
+ZTEST(channel_sounding_tests_error_handling, test_bt_hci_le_cs_read_remote_fae_table_complete_conn_lookup_fail)
 {
 	struct bt_hci_evt_le_cs_read_remote_fae_table_complete *evt;
 

testing/unit/channel_sounding_behavior/src/main.c

@@ -198,6 +198,14 @@ ZTEST(channel_sounding_tests, test_read_remote_fae_table)
 	zassert_equal_ptr(net_buf_simple_add_fake.arg0_val, simple_test_buf);
 }
 
+void *net_buf_simple_pull_mem_mock(struct net_buf_simple *buf, size_t len)
+{
+	void *data = buf->data; // Save the current data pointer
+	buf->data += len;       // Advance the data pointer
+	buf->len -= len;        // Reduce the remaining length
+	return data;            // Return the original data pointer
+}
+
 ZTEST(channel_sounding_tests, test_successful_read)
 {
 	struct bt_conn *test_conn = &test_conn_mock;
@@ -235,7 +243,7 @@ ZTEST(channel_sounding_tests, test_successful_read)
 
 	// Replace generic mock implementation with stubbed function
 	// net_buf_simple_add_fake.custom_fake = custom_net_buf_simple_add;
-	net_buf_simple_pull_mem_fake.return_val = &evt;
+	net_buf_simple_pull_mem_fake.custom_fake = net_buf_simple_pull_mem_mock;
 
 	/* Call the function */
 	bt_hci_le_cs_read_remote_fae_table_complete(&test_buf);