def test_raise_python_error_from_js(self):
ctx = DuktapeContext()
def f():
raise Exception()
ctx.set_globals(f=f)
with self.assertRaises(JSError):
ctx.eval_js('f()')
def test_raise_python_error_from_js(self):
ctx = DuktapeContext()
def f():
raise Exception()
ctx.set_globals(f=f)
with self.assertRaises(JSError):
ctx.eval_js('f()')
class TestBasicConversion(TestCase):
def setUp(self):
self.ctx = DuktapeContext()
def _convert(self, val):
self.ctx.set_globals(x=val)
return self.ctx.eval_js('x')
def test_None(self):
self.assertIsNone(self._convert(None))
def test_int(self):
self.assertEqual(self._convert(12), 12)
def test_double(self):
val = 1.23456789012345678909
self.assertEqual(self._convert(val), val)
def test_big_int_overflows(self):
val = 1 << 54
with self.assertRaises(OverflowError):
self._convert(val)
def test_int_fits_in_double(self):
val = 1 << 53
self.assertEqual(self._convert(val), val)
def test_utf8_string(self):
val = u'\u05D4'
self.assertEqual(self._convert(val), val)
def test_ascii_string(self):
val = 'hello world'
self.assertEqual(self._convert(val), val)
def test_js_null_and_undefined(self):
self.assertIsNone(self.ctx.eval_js('undefined'))
self.assertIsNone(self.ctx.eval_js('null'))
class TestBasicConversion(TestCase):
def setUp(self):
self.ctx = DuktapeContext()
def _convert(self, val):
self.ctx.set_globals(x=val)
return self.ctx.eval_js('x')
def test_None(self):
self.assertIsNone(self._convert(None))
def test_int(self):
self.assertEqual(self._convert(12), 12)
def test_double(self):
val = 1.23456789012345678909
self.assertEqual(self._convert(val), val)
def test_big_int_overflows(self):
val = 1 << 54
with self.assertRaises(OverflowError):
self._convert(val)
def test_int_fits_in_double(self):
val = 1 << 53
self.assertEqual(self._convert(val), val)
def test_utf8_string(self):
val = u'\u05D4'
self.assertEqual(self._convert(val), val)
def test_ascii_string(self):
val = 'hello world'
self.assertEqual(self._convert(val), val)
def test_js_null_and_undefined(self):
self.assertIsNone(self.ctx.eval_js('undefined'))
self.assertIsNone(self.ctx.eval_js('null'))
class TestPyProxy(TestCase):
def setUp(self):
self.ctx = DuktapeContext()
def test_py_proxy_get(self):
class X(object):
def __init__(self):
self.x = 42
self.ctx.set_globals(x=X())
res = self.ctx.eval_js('x.x')
self.assertEqual(res, 42)
res = self.ctx.eval_js('x.y')
self.assertEqual(res, None)
def test_py_proxy_get_list_index(self):
self.ctx.set_globals(x=[1, 3])
res = self.ctx.eval_js('x[0]')
self.assertEqual(res, 1)
res = self.ctx.eval_js('x[3]')
self.assertEqual(res, None)
def test_py_proxy_get_dict_key(self):
self.ctx.set_globals(x=dict(a=1, b=2))
res = self.ctx.eval_js('x.a')
self.assertEqual(res, 1)
res = self.ctx.eval_js('x.c')
self.assertEqual(res, None)
def test_py_proxy_get_dict_method(self):
self.ctx.set_globals(x=dict(a=1, b=2))
res = self.ctx.eval_js('x.get("c", 42)')
self.assertEqual(res, 42)
def test_py_proxy_has(self):
class X(object):
def __init__(self):
self.x = 42
self.ctx.set_globals(x=X())
res = self.ctx.eval_js('"x" in x')
self.assertTrue(res)
res = self.ctx.eval_js('"y" in x')
self.assertFalse(res)
def test_py_proxy_has_list_index(self):
self.ctx.set_globals(x=[1, 3])
res = self.ctx.eval_js('0 in x')
self.assertTrue(res)
res = self.ctx.eval_js('3 in x')
self.assertFalse(res)
def test_py_proxy_has_dict_key(self):
self.ctx.set_globals(x=dict(a=1, b=2))
res = self.ctx.eval_js('"a" in x')
self.assertTrue(res)
res = self.ctx.eval_js('"c" in x')
self.assertFalse(res)
def test_py_proxy_set(self):
class X(object):
def __init__(self):
self.x = 42
x = X()
self.ctx.set_globals(x=x)
self.ctx.eval_js('x.x = 12')
self.assertEqual(x.x, 12)
def test_py_proxy_set_index(self):
x = [1, 3]
self.ctx.set_globals(x=x)
self.ctx.eval_js('x[0] = 2')
self.assertEqual(x[0], 2)
with self.assertRaises(JSError):
self.ctx.eval_js('x[2] = 0')
def test_py_proxy_set_dict_key(self):
x = dict(a=1, b=2)
self.ctx.set_globals(x=x)
self.ctx.eval_js('x.a = 3')
self.assertEqual(x['a'], 3)
self.assertEqual(x['b'], 2)
def test_py_proxy_call_method(self):
class X(object):
def __init__(self):
self.x = 42
def f(self, a):
return self.x + a
self.ctx.set_globals(x=X())
res = self.ctx.eval_js('f = x.f; f(1)')
self.assertEqual(res, 43)
def test_construct_python_object(self):
class X(object):
def __init__(self):
self.x = 42
self.ctx.set_globals(X=X)
res = self.ctx.eval_js('X().x')
self.assertEqual(res, 42)
def test_cant_call_new_on_py_proxy(self):
class X(object):
pass
self.ctx.set_globals(X=X)
with self.assertRaises(JSError) as err:
self.ctx.eval_js('new X()')
self.assertIn('can\'t use new on python objects', str(err.exception))
def test_return_py_proxy_to_python(self):
class X(object):
pass
x = X()
self.ctx.set_globals(x=x)
returned_x = self.ctx.eval_js('x')
self.assertIs(x, returned_x)
def test_py_proxy_function(self):
def test(x):
return x + 1
self.ctx.set_globals(test=test)
res = self.ctx.eval_js('test(41)')
self.assertEqual(res, 42)
def test_py_proxy_index_list(self):
self.ctx.set_globals(x=[1, 2, 3])
self.assertEqual(self.ctx.eval_js('x[0]'), 1)
self.assertEqual(self.ctx.eval_js('x[1]'), 2)
self.assertEqual(self.ctx.eval_js('x[2]'), 3)
self.assertEqual(self.ctx.eval_js('x[3]'), None)
def test_py_proxy_index_dict(self):
self.ctx.set_globals(x=dict(a=1, b=2))
self.assertEqual(self.ctx.eval_js('x["a"]'), 1)
self.assertEqual(self.ctx.eval_js('x["b"]'), 2)
self.assertEqual(self.ctx.eval_js('x["c"]'), None)
class TestPyProxy(TestCase):
def setUp(self):
self.ctx = DuktapeContext()
def test_py_proxy_get(self):
class X(object):
def __init__(self):
self.x = 42
self.ctx.set_globals(x=X())
res = self.ctx.eval_js('x.x')
self.assertEqual(res, 42)
res = self.ctx.eval_js('x.y')
self.assertEqual(res, None)
def test_py_proxy_get_list_index(self):
self.ctx.set_globals(x=[1, 3])
res = self.ctx.eval_js('x[0]')
self.assertEqual(res, 1)
res = self.ctx.eval_js('x[3]')
self.assertEqual(res, None)
def test_py_proxy_get_dict_key(self):
self.ctx.set_globals(x=dict(a=1, b=2))
res = self.ctx.eval_js('x.a')
self.assertEqual(res, 1)
res = self.ctx.eval_js('x.c')
self.assertEqual(res, None)
def test_py_proxy_get_dict_method(self):
self.ctx.set_globals(x=dict(a=1, b=2))
res = self.ctx.eval_js('x.get("c", 42)')
self.assertEqual(res, 42)
def test_py_proxy_has(self):
class X(object):
def __init__(self):
self.x = 42
self.ctx.set_globals(x=X())
res = self.ctx.eval_js('"x" in x')
self.assertTrue(res)
res = self.ctx.eval_js('"y" in x')
self.assertFalse(res)
def test_py_proxy_has_list_index(self):
self.ctx.set_globals(x=[1, 3])
res = self.ctx.eval_js('0 in x')
self.assertTrue(res)
res = self.ctx.eval_js('3 in x')
self.assertFalse(res)
def test_py_proxy_has_dict_key(self):
self.ctx.set_globals(x=dict(a=1, b=2))
res = self.ctx.eval_js('"a" in x')
self.assertTrue(res)
res = self.ctx.eval_js('"c" in x')
self.assertFalse(res)
def test_py_proxy_set(self):
class X(object):
def __init__(self):
self.x = 42
x = X()
self.ctx.set_globals(x=x)
self.ctx.eval_js('x.x = 12')
self.assertEqual(x.x, 12)
def test_py_proxy_set_index(self):
x = [1, 3]
self.ctx.set_globals(x=x)
self.ctx.eval_js('x[0] = 2')
self.assertEqual(x[0], 2)
with self.assertRaises(JSError):
self.ctx.eval_js('x[2] = 0')
def test_py_proxy_set_dict_key(self):
x = dict(a=1, b=2)
self.ctx.set_globals(x=x)
self.ctx.eval_js('x.a = 3')
self.assertEqual(x['a'], 3)
self.assertEqual(x['b'], 2)
def test_py_proxy_call_method(self):
class X(object):
def __init__(self):
self.x = 42
def f(self, a):
return self.x + a
self.ctx.set_globals(x=X())
res = self.ctx.eval_js('f = x.f; f(1)')
self.assertEqual(res, 43)
def test_construct_python_object(self):
class X(object):
def __init__(self):
self.x = 42
self.ctx.set_globals(X=X)
res = self.ctx.eval_js('X().x')
self.assertEqual(res, 42)
def test_cant_call_new_on_py_proxy(self):
class X(object):
pass
self.ctx.set_globals(X=X)
with self.assertRaises(JSError) as err:
self.ctx.eval_js('new X()')
self.assertIn('can\'t use new on python objects', err.exception.message)
def test_return_py_proxy_to_python(self):
class X(object):
pass
x = X()
self.ctx.set_globals(x=x)
returned_x = self.ctx.eval_js('x')
self.assertIs(x, returned_x)
def test_py_proxy_function(self):
def test(x):
return x + 1
self.ctx.set_globals(test=test)
res = self.ctx.eval_js('test(41)')
self.assertEqual(res, 42)
def test_py_proxy_index_list(self):
self.ctx.set_globals(x=[1, 2, 3])
self.assertEqual(self.ctx.eval_js('x[0]'), 1)
self.assertEqual(self.ctx.eval_js('x[1]'), 2)
self.assertEqual(self.ctx.eval_js('x[2]'), 3)
self.assertEqual(self.ctx.eval_js('x[3]'), None)
def test_py_proxy_index_dict(self):
self.ctx.set_globals(x=dict(a=1, b=2))
self.assertEqual(self.ctx.eval_js('x["a"]'), 1)
self.assertEqual(self.ctx.eval_js('x["b"]'), 2)
self.assertEqual(self.ctx.eval_js('x["c"]'), None)
