def test_cond(text, expected):
ast = translate(text)
assert expected == execute(ast, default_context())
def test_definition():
ast = translate("""
(define add1 (lambda x (+ x 1)))
(add1 3)""")
result = execute(ast, default_context())
assert 4 == result
def test_procedure(text, expected):
context = default_context()
print(execute(translate(text), context))
print(context)
assert expected == execute(translate(text), default_context())
def test_lambda(text, expected):
context = default_context()
assert expected == execute(translate(text), default_context())
def test_variable():
ast = translate('a')
context = default_context()
result = execute(ast, context.bind(Variable("a"), 1))
assert 1 == result
def test_literal(text, expected):
print(execute(translate(text), default_context()))
assert expected == execute(translate(text), default_context())