./should --log --tap --xml demo/hello.should

cat demo/hello.log
cat demo/hello.tap
cat should.xml


$ --log output
r1: ^hello, world


$ --tap output
1:1..12
r>9:^ok


$ --xml output
r1:<testsuites .*failures="0"
r1:<testsuite .*cmd=...echo hello, world...
w>9:status="ok"