lightning/tests/trainer/model_hooks/test_model_hooks.py

36 lines
1.1 KiB
Python

from tests.base.boring_model import BoringModel
from pytorch_lightning import Trainer
from unittest import mock
@mock.patch('pytorch_lightning.core.hooks.ModelHooks.on_validation_model_eval')
@mock.patch('pytorch_lightning.core.hooks.ModelHooks.on_validation_model_train')
@mock.patch('pytorch_lightning.core.hooks.ModelHooks.on_test_model_eval')
@mock.patch('pytorch_lightning.core.hooks.ModelHooks.on_test_model_train')
def test_eval_train_calls(test_train_mock, test_eval_mock, val_train_mock, val_eval_mock, tmpdir):
"""
Tests that only training_step can be used
"""
model = BoringModel()
model.validation_epoch_end = None
trainer = Trainer(
default_root_dir=tmpdir,
limit_train_batches=2,
limit_val_batches=2,
max_epochs=2,
row_log_interval=1,
weights_summary=None,
)
trainer.fit(model)
trainer.test()
# sanity + 2 epochs
assert val_eval_mock.call_count == 3
assert val_train_mock.call_count == 3
# test is called only once
assert test_eval_mock.call_count == 1
assert test_train_mock.call_count == 1