def tests:
  "foo://example.com:8042/over/there?name=ferret&color=grey#nose",
  "urn:example:animal:ferret:nose",
  "jdbc:mysql://test_user:ouupppssss@localhost:3306/sakila?profileSQL=true",
  "ftp://ftp.is.co.za/rfc/rfc1808.txt",
  "http://www.ietf.org/rfc/rfc2396.txt#header1",
  "ldap://[2001:db8::7]/c=GB?objectClass=one&objectClass=two",
  "mailto:John.Doe@example.com",
  "news:comp.infosystems.www.servers.unix",
  "tel:+1-816-555-1212",
  "telnet://192.0.2.16:80/",
  "urn:oasis:names:specification:docbook:dtd:xml:4.1.2"
;

# For brevity, drop the `null`s:
tests
| [., (uri | (.. | select(.==null)) |= empty) ]