spaCy/spacy/tests/pipeline/test_textcat.py
Ines Montani 75f3234404
💫 Refactor test suite (#2568)
## Description

Related issues: #2379 (should be fixed by separating model tests)

* **total execution time down from > 300 seconds to under 60 seconds** 🎉
* removed all model-specific tests that could only really be run manually anyway – those will now live in a separate test suite in the [`spacy-models`](https://github.com/explosion/spacy-models) repository and are already integrated into our new model training infrastructure
* changed all relative imports to absolute imports to prepare for moving the test suite from `/spacy/tests` to `/tests` (it'll now always test against the installed version)
* merged old regression tests into collections, e.g. `test_issue1001-1500.py` (about 90% of the regression tests are very short anyways)
* tidied up and rewrote existing tests wherever possible

### Todo

- [ ] move tests to `/tests` and adjust CI commands accordingly
- [x] move model test suite from internal repo to `spacy-models`
- [x] ~~investigate why `pipeline/test_textcat.py` is flakey~~
- [x] review old regression tests (leftover files) and see if they can be merged, simplified or deleted
- [ ] update documentation on how to run tests


### Types of change
enhancement, tests

## Checklist
<!--- Before you submit the PR, go over this checklist and make sure you can
tick off all the boxes. [] -> [x] -->
- [x] I have submitted the spaCy Contributor Agreement.
- [x] I ran the tests, and all new and existing tests passed.
- [ ] My changes don't require a change to the documentation, or if they do, I've added all required information.
2018-07-24 23:38:44 +02:00

59 lines
1.9 KiB
Python

# coding: utf8
from __future__ import unicode_literals
import pytest
import random
import numpy.random
from spacy.language import Language
from spacy.pipeline import TextCategorizer
from spacy.tokens import Doc
from spacy.gold import GoldParse
def test_simple_train():
nlp = Language()
nlp.add_pipe(nlp.create_pipe('textcat'))
nlp.get_pipe('textcat').add_label('answer')
nlp.begin_training()
for i in range(5):
for text, answer in [('aaaa', 1.), ('bbbb', 0), ('aa', 1.),
('bbbbbbbbb', 0.), ('aaaaaa', 1)]:
nlp.update([text], [{'cats': {'answer': answer}}])
doc = nlp('aaa')
assert 'answer' in doc.cats
assert doc.cats['answer'] >= 0.5
@pytest.mark.skip(reason="Test is flakey when run with others")
def test_textcat_learns_multilabel():
random.seed(5)
numpy.random.seed(5)
docs = []
nlp = Language()
letters = ['a', 'b', 'c']
for w1 in letters:
for w2 in letters:
cats = {letter: float(w2==letter) for letter in letters}
docs.append((Doc(nlp.vocab, words=['d']*3 + [w1, w2] + ['d']*3), cats))
random.shuffle(docs)
model = TextCategorizer(nlp.vocab, width=8)
for letter in letters:
model.add_label(letter)
optimizer = model.begin_training()
for i in range(30):
losses = {}
Ys = [GoldParse(doc, cats=cats) for doc, cats in docs]
Xs = [doc for doc, cats in docs]
model.update(Xs, Ys, sgd=optimizer, losses=losses)
random.shuffle(docs)
for w1 in letters:
for w2 in letters:
doc = Doc(nlp.vocab, words=['d']*3 + [w1, w2] + ['d']*3)
truth = {letter: w2==letter for letter in letters}
model(doc)
for cat, score in doc.cats.items():
if not truth[cat]:
assert score < 0.5
else:
assert score > 0.5