Addressed PR feedback, rewrote the file to buffer API and added a tes… #1838

Job	Run time
clang-sanitizers (,thread)	3m 23s
clang-sanitizers (,address,undefined)	2m 44s
downstream	5m 44s
linux-compat (manylinux1-x64)	1m 33s
linux-compat (manylinux1-x86)	1m 34s
linux-compat (manylinux2014-x64)	1m 41s
linux-compiler-compat (clang-3)	2m 36s
linux-no-cpu-extensions	2m 11s
linux-compat (manylinux2014-x86)	1m 40s
linux-shared-libs	2m 0s
linux-compiler-compat (clang-6)	4m 23s
linux-compat (raspbian-bullseye)	13m 21s
linux-compiler-compat (clang-8)	4m 44s
linux-compat (fedora-34-x64)	1m 37s
linux-compiler-compat (clang-9)	4m 45s
linux-compiler-compat (clang-10)	2m 34s
windows	1m 43s
linux-compiler-compat (clang-11)	2m 16s
windows-no-cpu-extensions	2m 9s
linux-compiler-compat (gcc-4.8)	1m 32s
linux-compat (opensuse-leap)	2m 2s
linux-compiler-compat (gcc-5)	1m 59s
linux-compat (rhel8-x64)	1m 25s
linux-compiler-compat (gcc-6)	1m 51s
linux-compat (al2-x64)	1m 35s
linux-compiler-compat (gcc-7)	2m 0s
windows-shared-libs	2m 8s
linux-compiler-compat (gcc-8)	2m 12s
windows-vc14 (x86)	1m 11s
linux-compiler-compat (gcc-11)	2m 44s
windows-vc14 (x64)	1m 7s
windows-vc15 (x86)	1m 58s
windows-vc15 (x64)	1m 56s
windows-vc16 (x86)	2m 3s
windows-vc16 (x64)	2m 6s
Cross Compile linux-armv6	2m 34s
Cross Compile linux-armv7	2m 11s
Cross Compile linux-arm64	2m 44s
linux-debug	1m 45s
Cross Compile android-armv7	2m 49s
osx	3m 14s
osx-no-cpu-extensions	2m 27s
windows-app-verifier	1m 1s
openbsd	21m 4s
osx-debug	2m 59s
windows-debug	1m 42s
	2h 16m 57s

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