def test_repeated_letters(self):
re = sorted(l.get_reg_expressions("aa"))
regexp = sorted([r"[a-z]*a[a-z]*a[a-z]*"])
self.assertEqual(re, regexp)
def test_two_letters(self):
# sort so we can check for equality more easily
re = sorted(l.get_reg_expressions("ab"))
regexp = sorted([r"[a-z]*a[a-z]*b[a-z]*", r"[a-z]*b[a-z]*a[a-z]*"])
self.assertEqual(re, regexp)
def test_three_letters(self):
re = sorted(l.get_reg_expressions("abc"))
regexp = sorted([r"[a-z]*a[a-z]*b[a-z]*c[a-z]*", r"[a-z]*a[a-z]*c[a-z]*b[a-z]*", r"[a-z]*b[a-z]*a[a-z]*c[a-z]*", r"[a-z]*b[a-z]*c[a-z]*a[a-z]*", r"[a-z]*c[a-z]*a[a-z]*b[a-z]*", r"[a-z]*c[a-z]*b[a-z]*a[a-z]*"])
self.assertEqual(re, regexp)
def test_single_letter(self):
re = l.get_reg_expressions("a")
self.assertEqual(re[0], r"[a-z]*a[a-z]*")
