Preconditions

Element	Missed Instructions	Cov.	Missed Branches	Cov.	Missed	Cxty	Missed	Lines	Missed	Methods
Total	15 of 18	16%	3 of 4	25%	3	4	4	6	1	2
checkArgument(boolean, Supplier)		0%		0%	2	2	3	3	1	1
checkArgument(boolean, String)		37%		50%	1	2	1	3	0	1