import unittest
from unittest import TestSuite

from test.hand_evaluation_tests import HandEvaluationTests
from test.exploitability_tests import ExploitabilityTests
from test.cfr_tests import CfrTests

test_classes = [
    HandEvaluationTests,
    ExploitabilityTests,
    CfrTests
]


def load_tests(loader, tests, pattern):
    suite = TestSuite()
    for test_class in test_classes:
        tests = loader.loadTestsFromTestCase(test_class)
        suite.addTests(tests)
    return suite


if __name__ == "__main__":
    unittest.main()

import unittest
from unittest import TestSuite

from test.hand_evaluation_tests import HandEvaluationTests
from test.exploitability_tests import ExploitabilityTests
from test.cfr_tests import CfrTests
from test.best_response_game_value_tests import BestResponseGameValueTests

test_classes = [
    HandEvaluationTests,
    ExploitabilityTests,
    BestResponseGameValueTests,
    CfrTests
]


def load_tests(loader, tests, pattern):
    suite = TestSuite()
    for test_class in test_classes:
        tests = loader.loadTestsFromTestCase(test_class)
        suite.addTests(tests)
    return suite


if __name__ == "__main__":
    unittest.main()

Add best response test to main test suite