def test_SymbolTreeNode_err_operator_support_not_implimented():
SymbolTreeNodeExtended = type('SymbolTreeNodeExtended', (SymbolTreeNode, ),
{})
SymbolTreeNodeExtended.supported_operators.append('¬')
with pytest.raises(NotImplementedError):
SymbolTreeNodeExtended(get_symbols('2 ¬ 3')).calculate()
def test_SymbolTreeNode_handle_plus_minus():
assert str(SymbolTreeNode(get_symbols('1 + -1'))) == "[1, '+', -1]"
def test_get_symbols_allows_invalid_symbols():
assert get_symbols('¬') == ['¬']
def test_get_symbols_float_with_trailing_dot_okay():
assert get_symbols('2. +') == [2.0, '+']
def test_get_symbols_ignores_spaces():
assert get_symbols('2.1 + 5') == [2.1, '+', 5]
def test_get_symbols_can_parse_multiple():
assert get_symbols('2.1+5') == [2.1, '+', 5]
def test_get_symbols_can_parse_open_parenthesis():
assert get_symbols('(') == ['(']
def test_SymbolTreeNode_calculate_no_truncate_on_divide():
assert SymbolTreeNode(get_symbols('3/2')).calculate() == 1.5
def test_get_symbols_can_parse_divde():
assert get_symbols('/') == ['/']
def test_SymbolTreeNode_calculate_add_minus_nested():
assert SymbolTreeNode(get_symbols('1 + 1 - 1')).calculate() == 1
def test_SymbolTreeNode_calculate_add():
assert SymbolTreeNode(get_symbols('1 + 1')).calculate() == 2
def test_SymbolTreeNode_handle_minus_multiply():
with pytest.raises(ParseError):
SymbolTreeNode(get_symbols('1 - * 1'))
def test_SymbolTreeNode_handle_multiply_plus():
assert str(SymbolTreeNode(get_symbols('1 * +1'))) == "[1, '*', 1]"
def test_SymbolTreeNode_handle_multiply_minus():
assert str(SymbolTreeNode(get_symbols('1 * -1'))) == "[1, '*', -1]"
def test_SymbolTreeNode_handle_double_minus():
assert str(SymbolTreeNode(get_symbols('1 - -1'))) == "[1, '-', -1]"
def test_get_symbols_can_parse_multiply():
assert get_symbols('*') == ['*']
def test_SymbolTreeNode_calculate_stacked_ops6():
assert SymbolTreeNode(
get_symbols('2^3*(3+6)*7/2-(10^2+(1*2))')).calculate() == 150
def test_SymbolTreeNode_calculate_multiply():
assert SymbolTreeNode(get_symbols('1 * 3')).calculate() == 3
def test_get_symbols_can_parse_power():
assert get_symbols('^') == ['^']
def test_SymbolTreeNode_calculate_divide():
assert SymbolTreeNode(get_symbols('15 / 3')).calculate() == 5
def test_get_symbols_can_parse_close_parenthesis():
assert get_symbols(')') == [')']
def test_SymbolTreeNode_calculate_power():
assert SymbolTreeNode(get_symbols('2 ^ 3')).calculate() == 8
def test_get_symbols_can_parse_multiple_all_symbols():
assert get_symbols('2.1*3+5/2-(2^4)') == [
2.1, '*', 3, '+', 5, '/', 2, '-', '(', 2, '^', 4, ')'
]
def test_SymbolTreeNode_calculate_mult_add_mult():
assert SymbolTreeNode(get_symbols('2*3 + 6*7')).calculate() == 48
def test_get_symbols_ignores_tabs():
assert get_symbols('2.1\t+\t5') == [2.1, '+', 5]
def test_SymbolTreeNode_calculate_stacked_ops2():
assert SymbolTreeNode(get_symbols('2*(3+6)*7/2')).calculate() == 63
def test_get_symbols_float_with_leading_dot_okay():
assert get_symbols('.2 +') == [0.2, '+']
def test_SymbolTreeNode_calculate_stacked_ops4():
assert SymbolTreeNode(get_symbols('2^3*(3+6)*7/2-100')).calculate() == 152
def test_get_symbols_can_parse_ints():
assert get_symbols('1984') == [1984]
def test_SymbolTreeNode_handle_triple_plus():
assert str(SymbolTreeNode(get_symbols('1 + + +1'))) == "[1, '+', 1]"