Setup and run tests

Add source and target shape to checkerboard mask #104

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Run time

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Job	Run time
build (3.7)	2m 43s
build (3.8)	4m 8s
build (3.9)	5m 1s
build (3.10)	4m 11s
build (3.11)	2m 56s
	18m 59s