Add unit tests for IntList #193

Job	Run time
Test Processing	1m 11s
(linux/aarch64) Create Processing Build	8m 9s
(linux/x64) Create Processing Build	8m 14s
(windows/x64) Create Processing Build	4m 51s
(macos/x64) Create Processing Build	6m 29s
(macos/aarch64) Create Processing Build	3m 8s
	32m 2s

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