def test_python():
serializer.add_reviver('Foo', Foo.__from_json__)
text = serializer.saves(s1)
s2 = serializer.loads(text)
res = s2['a'].val + s2['b'][0].val
assert res == 49
assert s1 == s2
def test_js():
code = py2js(Serializer)
code += py2js(Foo)
code += 'var serializer = new Serializer();\n'
code += 'var foo1 = new Foo(42), foo2 = new Foo(7), foo3 = new Foo(null);\n'
code += 'var s1 = {"a": foo1, "b": [foo2, foo3]};\n'
code += 'var text = serializer.saves(s1);\n'
code += 'var s2 = serializer.loads(text);\n'
code += 'text + "|" + (s2.a.val + s2.b[0].val);\n'
result = evaljs(code)
text, res = result.split('|')
s3 = serializer.loads(text)
assert s1 == s3
assert res == '49'
