from unittest import TestCase

from unittest.mock import MagicMock

from pyjsparser import parse

from jasinta import interpret

import std as jasinta_std

class TestBasicAddition(TestCase):

	def setUp(self):

		self.mock_print = MagicMock()

		jasinta_std.lib["document"]["write"] = self.mock_print

	def test_interpret(self):

		s = """var a=3;

var b=1;

var c=a+b;

document.write(c);"""

		interpret(parse(s))

		self.mock_print.assert_called_with(4.0)