def test_is_pos_int_valid_int_succeed(self):
s = '123'
result = is_pos_int(s)
self.assertEqual(result, True)
def test_is_pos_int_float_fail(self):
s = '123.456'
result = is_pos_int(s)
self.assertEqual(result, False)
def test_is_pos_int_negative_int_fail(self):
s = '-123'
result = is_pos_int(s)
self.assertEqual(result, False)
def test_is_pos_int_none_fail(self):
s = None
result = is_pos_int(s)
self.assertEqual(result, False)
def test_is_pos_int_random_string_fail(self):
s = 'random_string'
result = is_pos_int(s)
self.assertEqual(result, False)
def test_is_pos_int_valid_int_succeed(self):
s = '123'
result = is_pos_int(s)
self.assertEqual(result, True)
def test_is_pos_int_empty_string_fail(self):
s = ''
result = is_pos_int(s)
self.assertEqual(result, False)
def test_is_pos_int_negative_int_fail(self):
s = '-123'
result = is_pos_int(s)
self.assertEqual(result, False)
def test_is_pos_int_float_fail(self):
s = '123.456'
result = is_pos_int(s)
self.assertEqual(result, False)
def test_is_pos_int_random_string_fail(self):
s = 'random_string'
result = is_pos_int(s)
self.assertEqual(result, False)
def test_is_pos_int_none_fail(self):
s = None
result = is_pos_int(s)
self.assertEqual(result, False)
def test_is_pos_int_empty_string_fail(self):
s = ''
result = is_pos_int(s)
self.assertEqual(result, False)