add tests.. #1371

Job	Run time
windows-vc17 (x64)	3m 51s
linux-shared-libs	11m 44s
clang-sanitizers (,address,undefined)	12m 23s
windows-shared-libs	4m 5s
windows-vc17 (x86)	3m 44s
macos (kqueue)	10m 48s
windows-app-verifier	4m 17s
downstream	13m 28s
macos (dispatch_queue)	14m 31s
clang-sanitizers (,thread)	12m 32s
linux-compat (manylinux2014-x64)	11m 27s
windows	3m 46s
macos-x64	11m 7s
linux-compat (fedora-34-x64)	11m 19s
linux-compat (opensuse-leap)	12m 53s
linux-compat (manylinux1-x64)	11m 28s
linux-compat (al2-x64)	12m 9s
linux-compat (manylinux1-x86)	12m 3s
linux-compat (manylinux2014-x86)	12m 28s
linux-compiler-compat (clang-9)	13m 31s
linux-compiler-compat (clang-15)	12m 53s
linux-compat (rhel8-x64)	12m 0s
linux-compiler-compat (gcc-6)	12m 6s
linux-compiler-compat (clang-11)	12m 56s
linux-compiler-compat (clang-6)	12m 53s
linux-compiler-compat (gcc-5)	12m 12s
linux-compiler-compat (gcc-8)	12m 27s
linux-compiler-compat (clang-8)	12m 28s
linux-compiler-compat (clang-17)	13m 34s
linux-compiler-compat (gcc-11)	12m 56s
linux-compiler-compat (gcc-7)	12m 4s
linux-compiler-compat (clang-10)	12m 20s
linux-compiler-compat (gcc-4.8)	12m 0s
	6h 6m 23s

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