Firmware Over-The-Air (OTA) update capability

.github/workflows/compile-examples.yml

@@ -41,7 +41,7 @@ jobs:
           # WiFi boards
           - board:
               type: "wifi"
-            libraries: '"ArduinoBearSSL" "ArduinoECCX08" "RTCZero" "WiFi101" "WiFiNINA"'
+            libraries: '"ArduinoBearSSL" "ArduinoECCX08" "RTCZero" "WiFi101" "WiFiNINA" "Arduino_MKRMEM"'
             sketch-paths: '"examples/utility/Provisioning" "examples/utility/WiFi_Cloud_Blink"'
           # LoRaWAN boards
           - board:
@@ -51,12 +51,12 @@ jobs:
           # GSM boards
           - board:
               type: "gsm"
-            libraries: '"ArduinoBearSSL" "ArduinoECCX08" "RTCZero" "MKRGSM"'
+            libraries: '"ArduinoBearSSL" "ArduinoECCX08" "RTCZero" "MKRGSM" "Arduino_MKRMEM"'
             sketch-paths: '"examples/utility/Provisioning" "examples/utility/GSM_Cloud_Blink"'
           # NB boards
           - board:
               type: "nb"
-            libraries: '"ArduinoBearSSL" "ArduinoECCX08" "RTCZero" "MKRNB"'
+            libraries: '"ArduinoBearSSL" "ArduinoECCX08" "RTCZero" "MKRNB" "Arduino_MKRMEM"'
             sketch-paths: '"examples/utility/Provisioning" "examples/utility/NB_Cloud_Blink"'
           # ESP8266 boards
           - board:

.github/workflows/spell-check.yml

@@ -14,3 +14,4 @@ jobs:
         uses: arduino/actions/libraries/spell-check@master
         with:
           ignore-words-list: extras/codespell-ignore-words-list.txt
+            skip-paths: ./extras/test/external

.github/workflows/unit-tests.yml

@@ -0,0 +1,48 @@
+name: Unit Tests
+
+on:
+  pull_request:
+    paths:
+      - ".github/workflows/unit-tests.yml"
+      - 'extras/test/**'
+      - 'src/**'
+
+  push:
+    paths:
+      - ".github/workflows/unit-tests.yml"
+      - 'extras/test/**'
+      - 'src/**'
+
+jobs:
+  test:
+    name: Run unit tests
+    runs-on: ubuntu-latest
+
+    env:
+      BUILD_PATH: "${{ github.workspace }}/extras/test/build"
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+
+      - name: Run unit tests
+        run: |
+          mkdir "$BUILD_PATH"
+          cd "$BUILD_PATH"
+          cmake ..
+          make
+          bin/testArduinoIoTCloud
+
+      - name: Check code coverage
+        run: |
+          cd "$BUILD_PATH"
+          sudo apt-get --assume-yes install lcov > /dev/null
+          lcov --directory . --capture --output-file coverage.info
+          lcov --quiet --remove coverage.info '*/extras/test/*' '/usr/*' --output-file coverage.info
+          lcov --list coverage.info
+
+      - name: Upload coverage report to Codecov
+        uses: codecov/codecov-action@v1
+        with:
+          file: "${{ env.BUILD_PATH }}/coverage.info"
+          fail_ci_if_error: true

.gitignore

@@ -3,4 +3,5 @@
 *~
 .vscode
 *.orig
-.vs
+.vs
+build

README.md

@@ -2,6 +2,8 @@
 =================
 [![Compile Examples](https://github.com/arduino-libraries/ArduinoIoTCloud/workflows/Compile%20Examples/badge.svg)](https://github.com/arduino-libraries/ArduinoIoTCloud/actions?workflow=Compile+Examples)
 [![Spell Check](https://github.com/arduino-libraries/ArduinoIoTCloud/workflows/Spell%20Check/badge.svg)](https://github.com/arduino-libraries/ArduinoIoTCloud/actions?workflow=Spell+Check)
+[![Unit Tests](https://github.com/arduino-libraries/ArduinoIoTCloud/workflows/Unit%20Tests/badge.svg)](https://github.com/arduino-libraries/ArduinoIoTCloud/actions?workflow=Unit+Tests)
+[![codecov](https://codecov.io/gh/arduino-libraries/ArduinoIoTCloud/branch/master/graph/badge.svg)](https://codecov.io/gh/arduino-libraries/ArduinoIoTCloud)
 
 ### What?
 The `ArduinoIoTCloud` library is the central element of the firmware enabling certain Arduino boards to connect to the [Arduino IoT Cloud](https://www.arduino.cc/en/IoT/HomePage). The following boards are supported:

extras/codespell-ignore-words-list.txt

@@ -1 +1,6 @@
 wan
+nd
+atleast
+derrived
+aline
+anid

extras/test/CMakeLists.txt

@@ -0,0 +1,50 @@
+##########################################################################
+
+cmake_minimum_required(VERSION 2.8)
+
+##########################################################################
+
+project(testArduinoIoTCloud)
+
+##########################################################################
+
+include_directories(include)
+include_directories(../../src/utility/ota)
+include_directories(external/catch/v2.12.1/include)
+include_directories(external/fakeit/v2.0.5/include)
+
+##########################################################################
+
+set(CMAKE_CXX_STANDARD 11)
+
+set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
+
+##########################################################################
+
+set(TEST_TARGET testArduinoIoTCloud)
+
+set(TEST_SRCS
+  src/test_main.cpp
+  src/test_OTALogic.cpp
+  src/OTATestData.cpp
+  ../../src/utility/ota/crc.cpp
+  ../../src/utility/ota/OTALogic.cpp
+)
+
+##########################################################################
+
+add_compile_definitions(HOST)
+add_compile_options(-Wall -Wextra -Wpedantic -Werror)
+
+set(CMAKE_C_FLAGS   ${CMAKE_C_FLAGS}   "--coverage")
+set(CMAKE_CXX_FLAGS ${CMAKE_CXX_FLAGS} "--coverage")
+
+##########################################################################
+
+add_executable(
+  ${TEST_TARGET}
+  ${TEST_SRCS}
+)
+
+##########################################################################
+