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"""Test for CharacterPredictor class."""
import importlib
import os
from pathlib import Path
import unittest
from loguru import logger
from text_recognizer.character_predictor import CharacterPredictor
from text_recognizer.networks import MLP
SUPPORT_DIRNAME = Path(__file__).parents[0].resolve() / "support" / "emnist"
os.environ["CUDA_VISIBLE_DEVICES"] = ""
class TestCharacterPredictor(unittest.TestCase):
"""Tests for the CharacterPredictor class."""
def test_filename(self) -> None:
"""Test that CharacterPredictor correctly predicts on a single image, for serveral test images."""
network_fn_ = MLP
predictor = CharacterPredictor(network_fn=network_fn_)
for filename in SUPPORT_DIRNAME.glob("*.png"):
pred, conf = predictor.predict(str(filename))
logger.info(
f"Prediction: {pred} at confidence: {conf} for image with character {filename.stem}"
)
self.assertEqual(pred, filename.stem)
self.assertGreater(conf, 0.7)
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