Fix warnings generated when running pytest #1795

Job	Run time
UBSAN	7m 46s
Windows Latest (Generator: Visual Studio 17 2022, Shared Library: false)	3m 3s
Windows Latest (Generator: Visual Studio 17 2022, Shared Library: true)	3m 13s
Windows Latest (Generator: MinGW Makefiles, Shared Library: false)	3m 11s
Windows Latest (Generator: MinGW Makefiles, Shared Library: true)	2m 50s
Test Big Endian	10m 6s
Bazel	6m 51s
macOS	32m 16s
ASAN	7m 34s
Ubuntu 20.04 (Build: Debug, Compilers: clang-6.0/clang++-6.0, Shared Library: true)	9m 54s
Ubuntu 20.04 (Build: Debug, Compilers: clang-6.0/clang++-6.0, Shared Library: false)	9m 51s
Ubuntu 20.04 (Build: Release, Compilers: clang-6.0/clang++-6.0, Shared Library: false)	14m 45s
Ubuntu 20.04 (Build: Debug, Compilers: gcc-7/g++-7, Shared Library: false)	10m 18s
Ubuntu 20.04 (Build: Debug, Compilers: gcc-7/g++-7, Shared Library: true)	9m 54s
Ubuntu 20.04 (Build: Release, Compilers: gcc-7/g++-7, Shared Library: false)	14m 2s
Ubuntu 20.04 (Build: Release, Compilers: gcc-7/g++-7, Shared Library: true)	13m 50s
Ubuntu 20.04 (Build: Release, Compilers: clang-6.0/clang++-6.0, Shared Library: true)	15m 1s
	2h 54m 25s

Provide feedback