def test_unpaired_brackets(self): self.assertEqual(check_brackets("[["), False)
def test_not_opened_nested(self): self.assertEqual(check_brackets("{[)][]}"), False)
def test_input_empty(self): self.assertEqual(check_brackets(""), True)
def test_unclosed(self): self.assertEqual(check_brackets("{{"), False)
def test_mixed_nested(self): self.assertEqual(check_brackets("{[]}"), True)
def test_unopened_closing_brackets(self): self.assertEqual(check_brackets("{[)][]}"), False)
def test_complex_latex_expression(self): self.assertEqual( check_brackets( ("\\left(\\begin{array}{cc} \\frac{1}{3} & x\\\\ \\mathrm{e}^{" "x} &... x^2 \\end{array}\\right)")), True)
def test_empty_string(self): self.assertEqual(check_brackets(""), True)
def test_single(self): self.assertEqual(check_brackets("{}"), True)
def test_nested_ensemble(self): self.assertEqual(check_brackets("{[]([()])}"), True)
def test_improperly_nested(self): self.assertEqual(check_brackets("{[}]"), False)
def test_paired_with_whitespace(self): self.assertEqual(check_brackets("{ }"), True)
def test_wrong_closing_bracket(self): self.assertEqual(check_brackets("{]"), False)
def test_several_paired_brackets(self): self.assertEqual(check_brackets("{}[]"), True)
def test_paired_and_wrong_nested_brackets(self): self.assertEqual(check_brackets("[({]})"), False)
def test_simple_nested_brackets(self): self.assertEqual(check_brackets("{[]}"), True)
def test_wrong_order(self): self.assertEqual(check_brackets("}{"), False)
def test_paired_and_nested_brackets(self): self.assertEqual(check_brackets("([{}({}[])])"), True)
def test_unpaired_and_nested_brackets(self): self.assertEqual(check_brackets("([{])"), False)
def test_wrong_ordered_brackets(self): self.assertEqual(check_brackets("}{"), False)
def test_math_expression(self): self.assertEqual( check_brackets("(((185 + 223.85) * 15) - 543)/2"), True)
def test_paired_square_brackets(self): self.assertEqual(check_brackets("[]"), True)
def test_math_expression(self): self.assertEqual(check_brackets("(((185 + 223.85) * 15) - 543)/2"), True)