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/timestamp/CMakeLists.txt

@@ -0,0 +1,40 @@
+# 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
+	BACAPP_ALL
+	)
+
+include_directories(
+	${SRC_DIR}
+	${TST_DIR}/ztest/include
+	)
+
+add_executable(${PROJECT_NAME}
+    # File(s) under test
+	${SRC_DIR}/bacnet/timestamp.c
+    # Support files and stubs (pathname alphabetical)
+	${SRC_DIR}/bacnet/bacdcode.c
+	${SRC_DIR}/bacnet/bacint.c
+	${SRC_DIR}/bacnet/bacreal.c
+	${SRC_DIR}/bacnet/bacstr.c
+	${SRC_DIR}/bacnet/basic/sys/bigend.c
+	${SRC_DIR}/bacnet/datetime.c
+    # Test and test library files
+	./src/main.c
+	${ZTST_DIR}/ztest_mock.c
+	${ZTST_DIR}/ztest.c
+	)

test/bacnet/timestamp/src/main.c

@@ -0,0 +1,143 @@
+/*
+ * Copyright (c) 2020 Legrand North America, LLC.
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+/* @file
+ * @brief test BACnet integer encode/decode APIs
+ */
+
+#include <ztest.h>
+#include <bacnet/timestamp.h>
+
+/**
+ * @addtogroup bacnet_tests
+ * @{
+ */
+
+/**
+ * @brief Test
+ */
+static void testTimestampSequence(void)
+{
+    BACNET_TIMESTAMP testTimestampIn;
+    BACNET_TIMESTAMP testTimestampOut;
+    uint8_t buffer[MAX_APDU];
+    int inLen;
+    int outLen;
+
+    testTimestampIn.tag = TIME_STAMP_SEQUENCE;
+    testTimestampIn.value.sequenceNum = 0x1234;
+
+    memset(&testTimestampOut, 0, sizeof(testTimestampOut));
+
+    inLen = bacapp_encode_context_timestamp(buffer, 2, &testTimestampIn);
+    outLen = bacapp_decode_context_timestamp(buffer, 2, &testTimestampOut);
+
+    zassert_equal(inLen, outLen, NULL);
+    zassert_equal(testTimestampIn.tag, testTimestampOut.tag, NULL);
+    zassert_equal(
+        testTimestampIn.value.sequenceNum,
+            testTimestampOut.value.sequenceNum, NULL);
+}
+
+static void testTimestampTime(void)
+{
+    BACNET_TIMESTAMP testTimestampIn;
+    BACNET_TIMESTAMP testTimestampOut;
+    uint8_t buffer[MAX_APDU];
+    int inLen;
+    int outLen;
+
+    testTimestampIn.tag = TIME_STAMP_TIME;
+    testTimestampIn.value.time.hour = 1;
+    testTimestampIn.value.time.min = 2;
+    testTimestampIn.value.time.sec = 3;
+    testTimestampIn.value.time.hundredths = 4;
+
+    memset(&testTimestampOut, 0, sizeof(testTimestampOut));
+
+    inLen = bacapp_encode_context_timestamp(buffer, 2, &testTimestampIn);
+    outLen = bacapp_decode_context_timestamp(buffer, 2, &testTimestampOut);
+
+    zassert_equal(inLen, outLen, NULL);
+    zassert_equal(testTimestampIn.tag, testTimestampOut.tag, NULL);
+    zassert_equal(
+        testTimestampIn.value.time.hour, testTimestampOut.value.time.hour, NULL);
+    zassert_equal(
+        testTimestampIn.value.time.min, testTimestampOut.value.time.min, NULL);
+    zassert_equal(
+        testTimestampIn.value.time.sec, testTimestampOut.value.time.sec, NULL);
+    zassert_equal(
+        testTimestampIn.value.time.hundredths,
+            testTimestampOut.value.time.hundredths, NULL);
+}
+
+static void testTimestampTimeDate(void)
+{
+    BACNET_TIMESTAMP testTimestampIn;
+    BACNET_TIMESTAMP testTimestampOut;
+    uint8_t buffer[MAX_APDU];
+    int inLen;
+    int outLen;
+
+    testTimestampIn.tag = TIME_STAMP_DATETIME;
+    testTimestampIn.value.dateTime.time.hour = 1;
+    testTimestampIn.value.dateTime.time.min = 2;
+    testTimestampIn.value.dateTime.time.sec = 3;
+    testTimestampIn.value.dateTime.time.hundredths = 4;
+
+    testTimestampIn.value.dateTime.date.year = 1901;
+    testTimestampIn.value.dateTime.date.month = 1;
+    testTimestampIn.value.dateTime.date.wday = 2;
+    testTimestampIn.value.dateTime.date.day = 3;
+
+    memset(&testTimestampOut, 0, sizeof(testTimestampOut));
+
+    inLen = bacapp_encode_context_timestamp(buffer, 2, &testTimestampIn);
+    outLen = bacapp_decode_context_timestamp(buffer, 2, &testTimestampOut);
+
+    zassert_equal(inLen, outLen, NULL);
+    zassert_equal(testTimestampIn.tag, testTimestampOut.tag, NULL);
+    zassert_equal(
+        testTimestampIn.value.dateTime.time.hour,
+            testTimestampOut.value.dateTime.time.hour, NULL);
+    zassert_equal(
+        testTimestampIn.value.dateTime.time.min,
+            testTimestampOut.value.dateTime.time.min, NULL);
+    zassert_equal(
+        testTimestampIn.value.dateTime.time.sec,
+            testTimestampOut.value.dateTime.time.sec, NULL);
+    zassert_equal(
+        testTimestampIn.value.dateTime.time.hundredths,
+            testTimestampOut.value.dateTime.time.hundredths, NULL);
+
+    zassert_equal(
+        testTimestampIn.value.dateTime.date.year,
+            testTimestampOut.value.dateTime.date.year, NULL);
+    zassert_equal(
+        testTimestampIn.value.dateTime.date.month,
+            testTimestampOut.value.dateTime.date.month, NULL);
+    zassert_equal(
+        testTimestampIn.value.dateTime.date.wday,
+            testTimestampOut.value.dateTime.date.wday, NULL);
+    zassert_equal(
+        testTimestampIn.value.dateTime.date.day,
+            testTimestampOut.value.dateTime.date.day, NULL);
+}
+/**
+ * @}
+ */
+
+
+void test_main(void)
+{
+    ztest_test_suite(timestamp_tests,
+     ztest_unit_test(testTimestampSequence),
+     ztest_unit_test(testTimestampTime),
+     ztest_unit_test(testTimestampTimeDate)
+     );
+
+    ztest_run_test_suite(timestamp_tests);
+}