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/netport/CMakeLists.txt

@@ -0,0 +1,46 @@
+# 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/netport.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/bacerror.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
+	${SRC_DIR}/bacnet/proplist.c
+    # Test and test library files
+	./src/main.c
+	${ZTST_DIR}/ztest_mock.c
+	${ZTST_DIR}/ztest.c
+	)

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

@@ -0,0 +1,100 @@
+/*
+ * Copyright (c) 2020 Legrand North America, LLC.
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+/* @file
+ * @brief test BACnet integer encode/decode APIs
+ */
+
+#include <ztest.h>
+#include <bacnet/readrange.h>
+#include <bacnet/basic/object/netport.h>
+
+/**
+ * @addtogroup bacnet_tests
+ * @{
+ */
+
+/**
+ * @brief Test
+ */
+static void test_network_port(void)
+{
+    uint8_t apdu[MAX_APDU] = { 0 };
+    int len = 0;
+    int test_len = 0;
+    BACNET_READ_PROPERTY_DATA rpdata;
+    /* for decode value data */
+    BACNET_APPLICATION_DATA_VALUE value;
+    const int *pRequired = NULL;
+    const int *pOptional = NULL;
+    const int *pProprietary = NULL;
+    unsigned port = 0;
+    unsigned count = 0;
+    uint32_t object_instance = 0;
+    bool status = false;
+    uint8_t port_type[] = { PORT_TYPE_ETHERNET, PORT_TYPE_ARCNET,
+        PORT_TYPE_MSTP, PORT_TYPE_PTP, PORT_TYPE_LONTALK, PORT_TYPE_BIP,
+        PORT_TYPE_ZIGBEE, PORT_TYPE_VIRTUAL, PORT_TYPE_NON_BACNET,
+        PORT_TYPE_BIP6, PORT_TYPE_MAX };
+
+    while (port_type[port] != PORT_TYPE_MAX) {
+        object_instance = 1234;
+        status = Network_Port_Object_Instance_Number_Set(0, object_instance);
+        zassert_true(status, NULL);
+        status = Network_Port_Type_Set(object_instance, port_type[port]);
+        zassert_true(status, NULL);
+        Network_Port_Init();
+        count = Network_Port_Count();
+        zassert_true(count > 0, NULL);
+        rpdata.application_data = &apdu[0];
+        rpdata.application_data_len = sizeof(apdu);
+        rpdata.object_type = OBJECT_NETWORK_PORT;
+        rpdata.object_instance = object_instance;
+        Network_Port_Property_Lists(&pRequired, &pOptional, &pProprietary);
+        while ((*pRequired) != -1) {
+            rpdata.object_property = *pRequired;
+            rpdata.array_index = BACNET_ARRAY_ALL;
+            len = Network_Port_Read_Property(&rpdata);
+            zassert_not_equal(len, 0, NULL);
+            test_len = bacapp_decode_application_data(rpdata.application_data,
+                (uint8_t)rpdata.application_data_len, &value);
+            zassert_true(test_len >= 0, NULL);
+            if (test_len < 0) {
+                printf("<decode failed!>\n");
+            }
+            pRequired++;
+        }
+        while ((*pOptional) != -1) {
+            rpdata.object_property = *pOptional;
+            rpdata.array_index = BACNET_ARRAY_ALL;
+            len = Network_Port_Read_Property(&rpdata);
+            zassert_not_equal(len, 0, NULL);
+            test_len = bacapp_decode_application_data(rpdata.application_data,
+                (uint8_t)rpdata.application_data_len, &value);
+            zassert_true(test_len >= 0, NULL);
+            if (test_len < 0) {
+                printf("<decode failed!>\n");
+            }
+            pOptional++;
+        }
+        port++;
+    }
+
+    return;
+}
+/**
+ * @}
+ */
+
+
+void test_main(void)
+{
+    ztest_test_suite(netport_tests,
+     ztest_unit_test(test_network_port)
+     );
+
+    ztest_run_test_suite(netport_tests);
+}