tests: subsys: fs: add bm_zms_unity tests

Adds `bm_zms` Unity unit tests.

Signed-off-by: Mirko Covizzi <[email protected]>

Author: MirkoCovizzi

subsys/fs/bm_zms/bm_zms.c

@@ -27,6 +27,10 @@
 #define NRFX_CRITICAL_SECTION_EXIT(...)
 #endif
 
+#if CONFIG_UNITY
+#define __ALIGN(x) __aligned(x)
+#endif
+
 LOG_MODULE_REGISTER(bm_zms, CONFIG_BM_ZMS_LOG_LEVEL);
 
 static zms_op_t cur_op; /* Current bm_zms operation. */

tests/subsys/fs/bm_zms_unity/CMakeLists.txt

@@ -0,0 +1,28 @@
+#
+# Copyright (c) 2025 Nordic Semiconductor ASA
+#
+# SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
+#
+
+cmake_minimum_required(VERSION 3.20.0)
+
+find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE})
+
+project(bm_zms_unity)
+
+cmock_handle(${ZEPHYR_BASE}/include/zephyr/sys/crc.h)
+cmock_handle(${ZEPHYR_NRF_BM_MODULE_DIR}/include/bm/storage/bm_storage.h)
+
+target_include_directories(app PRIVATE ${ZEPHYR_NRF_BM_MODULE_DIR}/include)
+
+target_compile_definitions(app PRIVATE
+        CONFIG_BM_ZMS_MAX_USERS=8
+        CONFIG_BM_ZMS_OP_QUEUE_SIZE=16
+)
+
+# Generate and add test file
+test_runner_generate(src/unity_test.c)
+target_sources(app PRIVATE src/unity_test.c)
+
+# Unit under test
+target_sources(app PRIVATE ${ZEPHYR_NRF_BM_MODULE_DIR}/subsys/fs/bm_zms/bm_zms.c)

tests/subsys/fs/bm_zms_unity/prj.conf

@@ -0,0 +1,6 @@
+#
+# Copyright (c) 2025 Nordic Semiconductor ASA
+#
+# SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
+#
+CONFIG_UNITY=y

tests/subsys/fs/bm_zms_unity/src/unity_test.c

@@ -0,0 +1,119 @@
+/*
+ * Copyright (c) 2025 Nordic Semiconductor ASA
+ *
+ * SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
+ */
+#include <unity.h>
+#include <errno.h>
+
+#include <bm/fs/bm_zms.h>
+
+#include "cmock_bm_storage.h"
+#include "cmock_crc.h"
+
+static struct bm_storage_info info = {
+	.erase_unit = 4,
+	.erase_value = 0,
+	.program_unit = 4,
+	.no_explicit_erase = true
+};
+
+void bm_zms_callback(bm_zms_evt_t const *p_evt)
+{
+}
+
+void test_bm_zms_register_efault(void)
+{
+	int err;
+
+	struct bm_zms_fs fs = { 0 };
+
+	err = bm_zms_register(NULL, NULL);
+	TEST_ASSERT_EQUAL(-EFAULT, err);
+
+	err = bm_zms_register(&fs, NULL);
+	TEST_ASSERT_EQUAL(-EFAULT, err);
+
+	err = bm_zms_register(NULL, bm_zms_callback);
+	TEST_ASSERT_EQUAL(-EFAULT, err);
+}
+
+void test_bm_zms_register(void)
+{
+	int err;
+
+	struct bm_zms_fs fs = { 0 };
+
+	err = bm_zms_register(&fs, bm_zms_callback);
+	TEST_ASSERT_EQUAL(0, err);
+}
+
+void test_bm_zms_mount_efault(void)
+{
+	int err;
+
+	struct bm_zms_fs fs = { 0 };
+	struct bm_zms_fs_config config = {
+		.offset = 0,
+		.sector_size = 1024,
+		.sector_count = 4,
+	};
+
+	err = bm_zms_mount(NULL, NULL);
+	TEST_ASSERT_EQUAL(-EFAULT, err);
+
+	err = bm_zms_mount(&fs, NULL);
+	TEST_ASSERT_EQUAL(-EFAULT, err);
+
+	err = bm_zms_mount(NULL, &config);
+	TEST_ASSERT_EQUAL(-EFAULT, err);
+}
+
+void test_bm_zms_mount(void)
+{
+	int err;
+
+	struct bm_zms_fs fs = { 0 };
+	struct bm_zms_fs_config config = {
+		.offset = 0,
+		.sector_size = 1024,
+		.sector_count = 4,
+	};
+
+	fs.zms_bm_storage.nvm_info = &info;
+
+	__cmock_bm_storage_init_ExpectAndReturn(&fs.zms_bm_storage, 0);
+
+	for (int i = 0; i < 13; i++) {
+		__cmock_bm_storage_read_ExpectAndReturn(&fs.zms_bm_storage, 0, NULL, 0, 0);
+		__cmock_bm_storage_read_IgnoreArg_src();
+		__cmock_bm_storage_read_IgnoreArg_dest();
+		__cmock_bm_storage_read_IgnoreArg_len();
+	}
+
+	__cmock_crc8_ccitt_IgnoreAndReturn(0);
+
+	__cmock_bm_storage_write_ExpectAndReturn(&fs.zms_bm_storage, 0, NULL, 0, NULL, 0);
+	__cmock_bm_storage_write_IgnoreArg_dest();
+	__cmock_bm_storage_write_IgnoreArg_src();
+	__cmock_bm_storage_write_IgnoreArg_len();
+	__cmock_bm_storage_write_IgnoreArg_ctx();
+
+	err = bm_zms_mount(&fs, &config);
+	TEST_ASSERT_EQUAL(0, err);
+}
+
+void setUp(void)
+{
+}
+
+void tearDown(void)
+{
+}
+
+extern int unity_main(void);
+
+int main(void)
+{
+	return unity_main();
+}

tests/subsys/fs/bm_zms_unity/testcase.yaml

@@ -0,0 +1,4 @@
+tests:
+  lib.bm_zms_unity:
+    platform_allow: native_sim
+    tags: unittest