"""
Unit Tests

Tests the Phrase Structure class as well as the
Phrase Structure Symbol class.
"""

import unittest

from phrase_structure_symbol import PhraseStructureSymbol
from phrase_structure import PhraseStructure

class TestPhraseStructureSymbol(unittest.TestCase):

    def test_add_rule(self):
        pass

    def test_add_intermediate_rule(self):
        pass

    def test_add_terminal_rule(self):
        pass
