Update README

README.md

@@ -160,6 +160,10 @@ General test settings can be adapted in the file `Settings.h`.
 
 ## This and That
 
+### CAN API V3 Reference
+
+A generic documentation of the CAN API V3 application programming interface can be found [here](https://uv-software.github.io/CANAPI-Docs). 
+
 ### Wrapper Library for Windows®
 
 A CAN API V3 compatible Wrapper Library for Windows is also available.

Tests/CANAPI/GoogleTest/README.txt

@@ -0,0 +1,36 @@
+Google Test Framework (GoogleTest) for CAN API V3 C++ Testing
+=============================================================
+
+GoogleTest (aka gtest) is a unit testing library for the C++ programming language,
+released under the BSD 3-clause license and based on the xUnit architecture.
+
+CAN API V3 is a wrapper specification to have a multi-vendor, cross-platform CAN API.
+GoogleTest is used for testing of CAN API V3 C++ wrapper implementations.
+
+Source Code Repositiory of GoogleTest
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+URL: https://github.com/google/googletest
+
+Current Version used by CAN API V3 C++ Testing
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+v1.12.0 (https://github.com/google/googletest/releases/tag/v1.12.0)
+
+Installation and Usage of GoogleTest
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+1. Clone the GoogleTest main branch or download the sources from a tag
+   e.g. into '~/Projects/gtest'
+2. Copy all header files from '~/Projects/gtest\googletest\include'
+   into '$(PROJROOT)/Tests/CANAPI/GoogleTest/include'
+3. Build static libraries as Universal macOS Binary for macOS 11.0 with CMake
+   note: GoogleMock (aka gmock) does not need to be created for this project.
+4. Copy all files from '~/Projects/gtest/googletest/build/lib'
+   into '$(PROJROOT)/Tests/CANAPI/GoogleTest/macOS/lib'
+
+Important Notes
+~~~~~~~~~~~~~~~
+- Adapt the architecture and deployment settings according to the root project
+- Since version 1.13.x Googletest requires at least C++14
+
+Last Updated
+~~~~~~~~~~~~
+August 24, 2023