tests

improve_error_msg #166

Job	Run time
reset to a clean state	9s
Add temporary packages for testing (1, p1)	13s
Add temporary packages for testing (1, p2)	18s
Add temporary packages for testing (1, p3)	17s
Add temporary packages for testing (2, p1)	17s
Add temporary packages for testing (2, p2)	12s
Add temporary packages for testing (2, p3)	13s
Add temporary packages for testing make the first untagged (1, p1)	22s
Add temporary packages for testing make the first untagged (1, p2)	20s
Add temporary packages for testing make the first untagged (1, p3)	19s
Add temporary packages for testing make the first untagged (2, p1)	12s
Add temporary packages for testing make the first untagged (2, p2)	18s
Add temporary packages for testing make the first untagged (2, p3)	19s
clean untagged packages	27s
clean untagged packages	0s
delete multiple package	0s
delete package	0s
delete all package in repo	0s
	3m 56s

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