Why hypothesis is awesome

tests.py

import unittest

class ActiveTests(TestCase):
  
    def test_upper(self):
        self.assertEqual('foo'.upper(), 'FOO')
      

tests_with_hypothesis.py

import unittest

from hypothesis import given
from hypothesis.strategies import text


class ActiveTests(TestCase):
  
    @given(text=text())
    def test_upper(self, text):
        upper_case_text = text.upper()
        self.assertTrue(upper_case_text.isupper())