django data between tests

Is it normal for data be deleted after a test success in django? I'm not talking about for each test run, let me do a example:

class MyFooTest(TestCase):
    def test_foo1(self):
        # Some foo test code here

    def test_foo2(self):
        # Some foo test code here

The data made during test test_foo1 do not existing when test test_foo2 is made, is it normal to happens?