assert find_links("http://abc") == ("%s", ["http://abc"])
assert find_links("t http://abc") == ("t %s", ["http://abc"])
assert find_links("http://abc t") == ("%s t", ["http://abc"])
assert find_links("http://abc") == ("%s", ["http://abc"])
assert find_links("t http://abc") == ("t %s", ["http://abc"])
assert find_links("http://abc t") == ("%s t", ["http://abc"])