test

Switch to use test-unit #402

Job	Run time
ruby-versions / Generate Ruby versions	2s
test (ubuntu-latest, 2.3)	42s
test (ubuntu-latest, 2.4)	36s
test (ubuntu-latest, 2.5)	42s
test (ubuntu-latest, 2.6)	41s
test (ubuntu-latest, 2.7)	43s
test (ubuntu-latest, 3.0)	16s
test (ubuntu-latest, 3.1)	18s
test (ubuntu-latest, 3.2)	15s
test (ubuntu-latest, 3.3)	18s
test (ubuntu-latest, head)	31s
test (ubuntu-latest, jruby)	4m 7s
test (ubuntu-latest, jruby-head)	4m 8s
test (macos-latest, 2.3)	1m 29s
test (macos-latest, 2.4)	1m 33s
test (macos-latest, 2.5)	1m 53s
test (macos-latest, 2.6)	1m 45s
test (macos-latest, 2.7)	1m 21s
test (macos-latest, 3.0)	22s
test (macos-latest, 3.1)	23s
test (macos-latest, 3.2)	30s
test (macos-latest, 3.3)	24s
test (macos-latest, head)	22s
test (macos-latest, jruby)	3m 15s
test (macos-latest, jruby-head)	5m 42s
test (windows-latest, 2.3)	2m 22s
test (windows-latest, 2.4)	2m 42s
test (windows-latest, 2.5)	3m 35s
test (windows-latest, 2.6)	3m 29s
test (windows-latest, 2.7)	2m 6s
test (windows-latest, 3.0)	1m 16s
test (windows-latest, 3.1)	1m 48s
test (windows-latest, 3.2)	2m 31s
test (windows-latest, 3.3)	2m 27s
test (windows-latest, head)	1m 47s
	56m 21s

Provide feedback