def test_associative(self):
"""
left and right associative
"""
self.assertEqual(pycalc.evaluate_string_expression("102%12%7", []),
102 % 12 % 7)
self.assertEqual(pycalc.evaluate_string_expression("100/4/3", []),
100 / 4 / 3)
self.assertEqual(pycalc.evaluate_string_expression("2^3^4", []),
2**3**4)
def test_comparison_operators(self):
"""
logical operators
"""
self.assertEqual(pycalc.evaluate_string_expression("1+2*3==1+2*3", []),
1 + 2 * 3 == 1 + 2 * 3)
self.assertEqual(pycalc.evaluate_string_expression("e^5>=e^5+1", []),
e**5 >= e**5 + 1)
self.assertEqual(
pycalc.evaluate_string_expression("1+2*4/3+1!=1+2*4/3+2", []),
1 + 2 * 4 / 3 + 1 != 1 + 2 * 4 / 3 + 2)
def test_unary_operators(self):
"""
unary operators
"""
self.assertEqual(pycalc.evaluate_string_expression("-13", []), -13)
self.assertEqual(pycalc.evaluate_string_expression("6-(-13)", []),
6 - (-13))
self.assertEqual(pycalc.evaluate_string_expression("1---1", []),
1 - --1)
self.assertEqual(pycalc.evaluate_string_expression("-+---+-1", []),
-+---+-1)
def test_functions_and_constants(self):
"""
functions and constants are recognized by pycalc
"""
self.assertEqual(pycalc.evaluate_string_expression("pi+e", []), pi + e)
self.assertEqual(pycalc.evaluate_string_expression("log(e)", []),
log(e))
self.assertEqual(pycalc.evaluate_string_expression("sin(pi/2)", []),
sin(pi / 2))
self.assertEqual(pycalc.evaluate_string_expression("log10(100)", []),
log10(100))
self.assertEqual(
pycalc.evaluate_string_expression("sin(pi/2)*111*6", []),
sin(pi / 2) * 111 * 6)
self.assertEqual(pycalc.evaluate_string_expression("2*sin(pi/2)", []),
2 * sin(pi / 2))
def test_operation_priority(self):
"""
priority of operations in expression
"""
self.assertEqual(pycalc.evaluate_string_expression("1+2*2", []),
1 + 2 * 2)
self.assertEqual(pycalc.evaluate_string_expression("1+(2+3*2)*3", []),
1 + (2 + 3 * 2) * 3)
self.assertEqual(pycalc.evaluate_string_expression("10*(2+1)", []),
10 * (2 + 1))
self.assertEqual(pycalc.evaluate_string_expression("10^(2+1)", []),
10**(2 + 1))
self.assertEqual(pycalc.evaluate_string_expression("100/3^2", []),
100 / 3**2)
self.assertEqual(pycalc.evaluate_string_expression("100/3%2^2", []),
100 / 3 % 2**2)
def test_common(self):
"""
other tests
"""
self.assertEqual(pycalc.evaluate_string_expression("(100)", []), (100))
self.assertEqual(pycalc.evaluate_string_expression("666", []), 666)
self.assertEqual(pycalc.evaluate_string_expression("10(2+1)", []),
10 * (2 + 1))
self.assertEqual(pycalc.evaluate_string_expression("-.1", []), -.1)
self.assertEqual(pycalc.evaluate_string_expression("1/3", []), 1 / 3)
self.assertEqual(pycalc.evaluate_string_expression("1.0/3.0", []),
1.0 / 3.0)
self.assertEqual(
pycalc.evaluate_string_expression(".1 * 2.0^56.0", []),
.1 * 2.0**56.0)
self.assertEqual(pycalc.evaluate_string_expression("e^34", []), e**34)
self.assertEqual(
pycalc.evaluate_string_expression("(2.0^(pi/pi+e/e+2.0^0.0))", []),
(2.0**(pi / pi + e / e + 2.0**0.0)))
self.assertEqual(
pycalc.evaluate_string_expression(
"(2.0^(pi/pi+e/e+2.0^0.0))^(1.0/3.0)", []),
(2.0**(pi / pi + e / e + 2.0**0.0))**(1.0 / 3.0))
self.assertEqual(
pycalc.evaluate_string_expression(
"sin(pi/2^1) + log(1*4+2^2+1, 3^2)", []),
sin(pi / 2**1) + log(1 * 4 + 2**2 + 1, 3**2))
self.assertEqual(
pycalc.evaluate_string_expression(
"10*e^0*log10(.4 -5/ -0.1-10) - -abs(-53/10) + -5", []),
10 * e**0 * log10(.4 - 5 / -0.1 - 10) - -abs(-53 / 10) + -5)
self.assertEqual(
pycalc.evaluate_string_expression(
"sin(-cos(-sin(3.0)-cos(-sin(-3.0*5.0)-sin(cos(log10(43.0))))"
+ "+cos(sin(sin(34.0-2.0^2.0))))--cos(1.0)--cos(0.0)^3.0)",
[]),
sin(-cos(-sin(3.0) -
cos(-sin(-3.0 * 5.0) - sin(cos(log10(43.0)))) +
cos(sin(sin(34.0 - 2.0**2.0)))) - -cos(1.0) -
-cos(0.0)**3.0))
self.assertEqual(
pycalc.evaluate_string_expression("2.0^(2.0^2.0*2.0^2.0)", []),
2.0**(2.0**2.0 * 2.0**2.0))
self.assertEqual(
pycalc.evaluate_string_expression(
"sin(e^log(e^e^sin(23.0),45.0) + cos(3.0+log10(e^-e)))", []),
sin(e**log(e**e**sin(23.0), 45.0) + cos(3.0 + log10(e**-e))))