def test_01_from_file_02(self):
"""Verify that a classifier can be constructed from a file with weights."""
classifier = PerceptronClassifier({'good': 1, 'terrible': -1})
classifier.save('data/ex05_from_file_test.model')
classifier = PerceptronClassifier.from_file(
'data/ex05_from_file_test.model')
if classifier is None:
self.fail(
msg=
"Constructing classifier from file failed: from_file returned None"
)
expected_weights = {'good': 1, 'terrible': -1}
self.assertEqual(classifier.weights, expected_weights)
