tests: bluetooth: host: Add UT for bt_pub_key_is_debug()

Unit test project for bt_pub_key_is_debug().
This is part of subsys/bluetooth/host/ecc.c unit testing.

Signed-off-by: Ahmed Moheb <[email protected]>

Author: ahmedmoheb-nordic

tests/bluetooth/host/ecc/bt_pub_key_is_debug/CMakeLists.txt

@@ -0,0 +1,16 @@
+# SPDX-License-Identifier: Apache-2.0
+
+cmake_minimum_required(VERSION 3.20.0)
+
+set(SOURCES
+  src/main.c
+)
+
+project(bt_pub_key_is_debug)
+
+find_package(Zephyr COMPONENTS unittest HINTS $ENV{ZEPHYR_BASE})
+
+add_subdirectory(${ZEPHYR_BASE}/tests/bluetooth/host host_mocks)
+add_subdirectory(${ZEPHYR_BASE}/tests/bluetooth/host/ecc mocks)
+
+target_link_libraries(testbinary PRIVATE mocks host_mocks)

tests/bluetooth/host/ecc/bt_pub_key_is_debug/prj.conf

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+CONFIG_ZTEST=y
+CONFIG_ZTEST_NEW_API=y
+CONFIG_BT=y
+CONFIG_BT_CENTRAL=y
+CONFIG_BT_MAX_PAIRED=7
+CONFIG_ASSERT=y
+CONFIG_ASSERT_LEVEL=2
+CONFIG_ASSERT_VERBOSE=y
+CONFIG_ASSERT_ON_ERRORS=y

tests/bluetooth/host/ecc/bt_pub_key_is_debug/src/main.c

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+/*
+ * Copyright (c) 2022 Nordic Semiconductor ASA
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include "mocks/ecc_help_utils.h"
+
+#include <zephyr/fff.h>
+#include <zephyr/kernel.h>
+
+#include <host/ecc.h>
+
+DEFINE_FFF_GLOBALS;
+
+ZTEST_SUITE(bt_pub_key_is_debug, NULL, NULL, NULL, NULL, NULL);
+
+/*
+ *  Test bt_pub_key_is_debug() returns 'true' if key passed matches the internal debug key
+ *
+ *  Constraints:
+ *   - The key passed matches the internal debug key
+ *
+ *  Expected behaviour:
+ *   - bt_pub_key_is_debug() returns 'true'
+ */
+ZTEST(bt_pub_key_is_debug, test_key_matches_internal_key)
+{
+	bool result;
+	uint8_t const *internal_dbg_public_key = bt_ecc_get_internal_debug_public_key();
+	uint8_t testing_public_key[BT_PUB_KEY_LEN] = {0};
+
+	memcpy(testing_public_key, internal_dbg_public_key, BT_PUB_KEY_LEN);
+
+	result = bt_pub_key_is_debug(testing_public_key);
+
+	zassert_true(result, "Unexpected error code '%d' was returned", result);
+}
+
+/*
+ *  Test bt_pub_key_is_debug() returns 'false' if key passed doesn't match the internal debug key
+ *
+ *  Constraints:
+ *   - The key passed doesn't match the internal debug key
+ *
+ *  Expected behaviour:
+ *   - bt_pub_key_is_debug() returns 'false'
+ */
+ZTEST(bt_pub_key_is_debug, test_key_mismatches_internal_key)
+{
+	bool result;
+	uint8_t testing_public_key[BT_PUB_KEY_LEN] = {0};
+
+	result = bt_pub_key_is_debug(testing_public_key);
+
+	zassert_false(result, "Unexpected error code '%d' was returned", result);
+}

tests/bluetooth/host/ecc/bt_pub_key_is_debug/testcase.yaml

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+common:
+  tags: test_framework bluetooth host
+tests:
+  bluetooth.host.bt_pub_key_is_debug.default:
+    type: unit