from abc import ABC
from pyson.JsonSubTypes import JsonSubTypes
from pyson.JsonTools import getInitArgs, getListClass, str_to_class
import unittest


@JsonSubTypes(["test.JsonToolsTest.B"])
class A:
    pass

class B(A):
    pass


class JsonToolsTest(unittest.TestCase):

    
    def testGetInitArgs(self):
        class ClassWithInitVars:
            def __init__(self, x:int):
                y=2
        
        self.assertEqual({"x":int}, getInitArgs(ClassWithInitVars))
                           
    def testGetInitArgsAbc(self):
        class BaseClass(ABC):
            pass
        
        class ClassWithInitVars2(BaseClass):
            def __init__(self, x:int):
                y=2
        
        self.assertEqual({"x":int}, getInitArgs(ClassWithInitVars2))

    def testGetListTypePrimitiveMixed(self):
        self.assertEqual(None, getListClass([3, True]))
        
    def testGetListTypePolymorphicNMixed(self):
        self.assertEqual(A, getListClass([B(), A(),B()]))
        
    def testStrToClassLocal(self):
        str_to_class("test.JsonToolsTest.A")

    def testStrToClassRemoteWrongName(self):
        # twrong name ValueDeserializer, see next test with correct name
        self.assertRaises(AttributeError, lambda:str_to_class("test.MyDeserializer.ValueDeserializer"))

        
    def testStrToClassRemote(self):
        str_to_class("test.MyDeserializer.ValueDeserializer2")