def test_peek_missing(self):
"""Test the peek method when the token does not exist."""
parser = SimpleParser("Hello, World!")
self.assertEqual(parser.peek("\d+"), "")
def test_peek_missing(self):
"""Test the peek method when the token does not exist."""
parser = SimpleParser("Hello, World!")
self.assertEqual(parser.peek("\d+"), "")
def test_peek_existing(self):
"""Test the peek method when the token exists."""
parser = SimpleParser("Hello, World!")
self.assertEqual(parser.peek("\w+"), "Hello")
def test_peek_existing(self):
"""Test the peek method when the token exists."""
parser = SimpleParser("Hello, World!")
self.assertEqual(parser.peek("\w+"), "Hello")
