PythonMonkey/tests/python/test_objects.py at main · Distributive-Network/PythonMonkey · GitHub

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import pythonmonkey as pm
import sys


def test_eval_pyobjects():
  class MyClass:
    pass

  o = MyClass()
  proxy_o = pm.eval("(obj) => { return obj; }")(o)
  assert o is proxy_o


def test_eval_pyobjects_subobjects():
  class InnerClass:
    def __init__(self):
      self.c = 2

  class OuterClass:
    def __init__(self):
      self.a = 1
      self.b = InnerClass()

  o = OuterClass()

  assert pm.eval("(obj) => { return obj.a;   }")(o) == 1.0
  assert pm.eval("(obj) => { return obj.b;   }")(o) is o.b
  assert pm.eval("(obj) => { return obj.b.c; }")(o) == 2.0


def test_eval_pyobjects_cycle():
  class MyClass:
    def __init__(self):
      self.a = 1
      self.b = 2
      self.recursive = self

  o = MyClass()

  assert pm.eval("(obj) => { return obj.a;         }")(o) == 1.0
  assert pm.eval("(obj) => { return obj.b;         }")(o) == 2.0
  assert pm.eval("(obj) => { return obj.recursive; }")(o) is o.recursive


def test_eval_pyobjects_proxy_get():
  class MyClass:
    def __init__(self):
      self.a = 42

  o = MyClass()

  assert pm.eval("(obj) => { return obj.a}")(o) == 42.0


def test_eval_pyobjects_proxy_set():
  class MyClass:
    def __init__(self):
      self.a = 42

  o = MyClass()

  pm.eval("(obj) => { obj.b = 43; }")(o)
  assert o.b == 43.0


def test_eval_pyobjects_proxy_keys():
  class MyClass:
    def __init__(self):
      self.a = 42

  o = MyClass()

  assert pm.eval("(obj) => { return Object.keys(obj)[0]; }")(o) == 'a'


def test_eval_pyobjects_proxy_delete():
  class MyClass:
    def __init__(self):
      self.a = 42

  o = MyClass()

  pm.eval("(obj) => { delete obj.a; }")(o)
  assert not hasattr(o, 'a')


def test_eval_pyobjects_proxy_has():
  class MyClass:
    def __init__(self):
      self.a = 42

  o = MyClass()

  assert pm.eval("(obj) => { return 'a' in obj; }")(o)


def test_eval_pyobjects_proxy_not_extensible():
  class MyClass:
    def __init__(self):
      self.a = 42

  o = MyClass()

  assert not pm.eval("(o) => Object.isExtensible(o)")(o)
  assert pm.eval("(o) => Object.preventExtensions(o) === o")(o)


def test_instanceof_pyobject():
  class MyClass:
    def __init__(self):
      self.a = 42

  o = MyClass()
  assert pm.eval("(obj) => { return obj instanceof Object; }")(o)


def test_pyobjects_not_instanceof_string():
  class MyClass:
    def __init__(self):
      self.a = 42

  o = MyClass()

  assert not pm.eval("(obj) => { return obj instanceof String; }")(o)


def test_pyobjects_valueOf():
  class MyClass:
    def __init__(self):
      self.a = 42

  o = MyClass()
  assert o is pm.eval("(obj) => { return obj.valueOf(); }")(o)


def test_pyobjects_toString():
  class MyClass:
    def __init__(self):
      self.a = 42

  o = MyClass()
  assert '[object Object]' == pm.eval("(obj) => { return obj.toString(); }")(o)


def test_pyobjects_toLocaleString():
  class MyClass:
    def __init__(self):
      self.a = 42

  o = MyClass()
  assert '[object Object]' == pm.eval("(obj) => { return obj.toLocaleString(); }")(o)


def test_toPrimitive_iterable():
  iterable = iter([1,2])
  toPrimitive = pm.eval("(obj) => { return obj[Symbol.toPrimitive]; }")(iterable)
  assert repr(toPrimitive).__contains__("<pythonmonkey.JSFunctionProxy object at")


def test_constructor_iterable():
  iterable = iter([1,2])
  constructor = pm.eval("(obj) => { return obj.constructor; }")(iterable)
  assert repr(constructor).__contains__("<pythonmonkey.JSFunctionProxy object at")


def test_toPrimitive_stdin():
  toPrimitive = pm.eval("(obj) => { return obj[Symbol.toPrimitive]; }")(sys.stdin)
  assert repr(toPrimitive).__contains__("<pythonmonkey.JSFunctionProxy object at")


def test_constructor_stdin():
  constructor = pm.eval("(obj) => { return obj.constructor; }")(sys.stdin)
  assert repr(constructor).__contains__("<pythonmonkey.JSFunctionProxy object at")


def test_toString_is_prototype_toString():
  is_to_string_correct = pm.eval("x => x.toString === Object.prototype.toString")
  assert is_to_string_correct({})


def test_toString_is_prototype_toLocaleString():
  is_to_locale_string_correct = pm.eval("x => x.toLocaleString === Object.prototype.toLocaleString")
  assert is_to_locale_string_correct({})


def test_valueof_is_prototype_valueof():
  is_valueof_correct = pm.eval("x => x.valueOf === Object.prototype.valueOf")
  assert is_valueof_correct({})