Add more mock tests #1430

Job	Run time
Build Doxygen Docs	49s
Cache deps on ci-ubuntu-gcc for Release	1m 53s
Test RPP as package - ubuntu-latest	45s
Cache deps on ci-ubuntu-gcc for Debug	2m 9s
Cache deps on ci-ubuntu-clang for Release	2m 14s
Cache deps on ci-ubuntu-clang for Debug	1m 57s
Cache deps on ci-windows for Release	5m 22s
Cache deps on ci-windows for Debug	3m 45s
Cache deps on ci-macos for Release	2m 26s
Cache deps on ci-macos for Debug	2m 17s
Sanitize - tsan	5m 26s
tests ci-ubuntu-gcc Release	1m 53s
Sanitize - asan	5m 27s
tests ci-ubuntu-gcc Debug	2m 3s
Sanitize - lsan	5m 27s
benchmarks ci-ubuntu-gcc Release	1m 18s
Sanitize - ubsan	5m 24s
benchmarks ci-ubuntu-gcc Debug	1m 16s
tests ci-ubuntu-clang Release	1m 57s
tests ci-ubuntu-clang Debug	2m 3s
benchmarks ci-ubuntu-clang Release	1m 15s
benchmarks ci-ubuntu-clang Debug	1m 23s
tests ci-windows Release	1m 50s
tests ci-windows Debug	1m 55s
benchmarks ci-windows Release	1m 53s
benchmarks ci-windows Debug	1m 54s
tests ci-macos Release	2m 4s
tests ci-macos Debug	2m 10s
benchmarks ci-macos Release	1m 37s
benchmarks ci-macos Debug	2m 4s
	1h 13m 56s

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