def test_factorial():
# 0 => 1
# => n * (n - 1)!
source = '''
factorial = (n) ->
if n then
(n * factorial((n - 1)))
else
1
factorial(0)
factorial(5)
'''
assert Mini().eval(source)[1:] == [1, 120]
def test_numbers():
assert Mini().eval('') == []
assert Mini().eval('42') == [42]
assert Mini().eval('42 12') == [42, 12]
def func(*args):
env = dict(self.env.items() + zip(params, args))
return Mini(env).eval(expr)
def test_lambdas():
assert Mini().eval('addten = (b) -> (b + 10) \n addten(2)')[-1] == 12
source = 'x = 10 \n addx = (a) -> (a + x) \n addx(2)'
assert Mini().eval(source)[-1] == 12
assert Mini().eval('add = (a b) -> (a + b) \n add(42 12)')[-1] == 54
def test_if():
assert Mini().eval('if 1 then 42 else 12') == [42]
assert Mini().eval('if 0 then 42 else 12') == [12]
def test_functions():
assert Mini().eval('sum(10 20)') == [30]
assert Mini().eval('sum(10 20 30)') == [60]
def test_operators():
assert Mini().eval('(42 + 2)') == [44]
assert Mini().eval('(42 + (2 * 4))') == [50]
def test_variables():
assert Mini({'a': 42}).eval('a') == [42]
assert Mini().eval('a = 2 \n a') == [2, 2]
from mini import Mini
def test_numbers(): assert Mini().eval('') == [] assert Mini().eval('42') == [42] assert Mini().eval('42 12') == [42, 12]
def test_variables(): assert Mini({'a': 42}).eval('a') == [42] assert Mini().eval('a = 2 \n a') == [2, 2]
def test_operators(): assert Mini().eval('(42 + 2)') == [44] assert Mini().eval('(42 + (2 * 4))') == [50]
def test_functions(): assert Mini().eval('sum(10 20)') == [30] assert Mini().eval('sum(10 20 30)') == [60]
def test_if(): assert Mini().eval('if 1 then 42 else 12') == [42] assert Mini().eval('if 0 then 42 else 12') == [12]
def test_lambdas(): assert Mini().eval('addten = (b) -> (b + 10) \n addten(2)')[-1] == 12 source = 'x = 10 \n addx = (a) -> (a + x) \n addx(2)' assert Mini().eval(source)[-1] == 12 assert Mini().eval('add = (a b) -> (a + b) \n add(42 12)')[-1] == 54
def test_factorial(): # 0 => 1 # => n * (n - 1)! source = ''' factorial = (n) -> if n then (n * factorial((n - 1))) else 1 factorial(0) factorial(5) ''' assert Mini().eval(source)[1:] == [1, 120]
# github.com/halst/mini
