def test_find_number_5():
 s = 'over the laz-91.2y dog'
 r = find_number(s)
 assert (s[r[0]:r[1]] == '-91.2')

def test_find_number_5 ( ) : s = 'over the laz-91.2y dog' r = find_number ( s ) assert ( s [ r [ 0 ] : r [ 1 ] ] == '-91.2' )
tests that we find decimal numbers with negative signs .