Feature/zephyr ztest (#118)

* Leverage (older) embedded unit tests into external unit tests build upon copy of Zephyr's ztest library and CMake.

* Expand top-level CMake build to run external unit tests.

* Expand Zephyr module extension to run external unit tests via west or sanitycheck.

Co-authored-by: Gregory Shue <gregory.shue@legrand.us>

test/bacnet/basic/object/ao/CMakeLists.txt

@@ -0,0 +1,45 @@
+# SPDX-License-Identifier: MIT
+
+cmake_minimum_required(VERSION 3.10 FATAL_ERROR)
+
+get_filename_component(basename ${CMAKE_CURRENT_SOURCE_DIR} NAME)
+project(test_${basename}
+	VERSION 1.0.0
+	LANGUAGES C)
+
+
+string(REGEX REPLACE "/bacnet/[a-zA-Z_/-]*$" "" TST_DIR ${CMAKE_CURRENT_SOURCE_DIR})
+set(ZTST_DIR "${TST_DIR}/ztest/src")
+string(REGEX REPLACE "/test$" "/src" SRC_DIR ${TST_DIR})
+
+add_compile_definitions(
+	BIG_ENDIAN=0
+	CONFIG_ZTEST=1
+	)
+
+include_directories(
+	${SRC_DIR}
+	${TST_DIR}/ztest/include
+	)
+
+add_executable(${PROJECT_NAME}
+    # File(s) under test
+	${SRC_DIR}/bacnet/basic/object/ao.c
+    # Support files and stubs (pathname alphabetical)
+	${SRC_DIR}/bacnet/bacapp.c
+	${SRC_DIR}/bacnet/bacdcode.c
+	${SRC_DIR}/bacnet/bacdevobjpropref.c
+	${SRC_DIR}/bacnet/bacint.c
+	${SRC_DIR}/bacnet/bacreal.c
+	${SRC_DIR}/bacnet/bacstr.c
+	${SRC_DIR}/bacnet/bactext.c
+	${SRC_DIR}/bacnet/basic/sys/bigend.c
+	${SRC_DIR}/bacnet/datetime.c
+	${SRC_DIR}/bacnet/indtext.c
+	${SRC_DIR}/bacnet/lighting.c
+	./stubs.c
+    # Test and test library files
+	./src/main.c
+	${ZTST_DIR}/ztest_mock.c
+	${ZTST_DIR}/ztest.c
+	)

test/bacnet/basic/object/ao/src/main.c

@@ -0,0 +1,61 @@
+/*
+ * Copyright (c) 2020 Legrand North America, LLC.
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+/* @file
+ * @brief test BACnet integer encode/decode APIs
+ */
+
+#include <ztest.h>
+#include <bacnet/basic/object/ao.h>
+
+/**
+ * @addtogroup bacnet_tests
+ * @{
+ */
+
+/**
+ * @brief Test
+ */
+static void testAnalogOutput(void)
+{
+    uint8_t apdu[MAX_APDU] = { 0 };
+    int len = 0;
+    uint32_t len_value = 0;
+    uint8_t tag_number = 0;
+    uint32_t decoded_instance = 0;
+    BACNET_OBJECT_TYPE decoded_type = 0;
+    BACNET_READ_PROPERTY_DATA rpdata;
+
+    Analog_Output_Init();
+    rpdata.application_data = &apdu[0];
+    rpdata.application_data_len = sizeof(apdu);
+    rpdata.object_type = OBJECT_ANALOG_OUTPUT;
+    rpdata.object_instance = 1;
+    rpdata.object_property = PROP_OBJECT_IDENTIFIER;
+    rpdata.array_index = BACNET_ARRAY_ALL;
+    len = Analog_Output_Read_Property(&rpdata);
+    zassert_not_equal(len, 0, NULL);
+    len = decode_tag_number_and_value(&apdu[0], &tag_number, &len_value);
+    zassert_equal(tag_number, BACNET_APPLICATION_TAG_OBJECT_ID, NULL);
+    len = decode_object_id(&apdu[len], &decoded_type, &decoded_instance);
+    zassert_equal(decoded_type, rpdata.object_type, NULL);
+    zassert_equal(decoded_instance, rpdata.object_instance, NULL);
+
+    return;
+}
+/**
+ * @}
+ */
+
+
+void test_main(void)
+{
+    ztest_test_suite(ao_tests,
+     ztest_unit_test(testAnalogOutput)
+     );
+
+    ztest_run_test_suite(ao_tests);
+}

test/bacnet/basic/object/ao/stubs.c

@@ -0,0 +1,43 @@
+/**************************************************************************
+ *
+ * Copyright (C) 2006 Steve Karg <skarg@users.sourceforge.net>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ *********************************************************************/
+
+/* Binary Input Objects customize for your use */
+
+#include <stdbool.h>
+#include <stdint.h>
+#include "bacnet/bacapp.h"
+
+bool WPValidateArgType(BACNET_APPLICATION_DATA_VALUE *pValue,
+    uint8_t ucExpectedTag,
+    BACNET_ERROR_CLASS *pErrorClass,
+    BACNET_ERROR_CODE *pErrorCode)
+{
+    pValue = pValue;
+    ucExpectedTag = ucExpectedTag;
+    pErrorClass = pErrorClass;
+    pErrorCode = pErrorCode;
+
+    return false;
+}