mirror of
https://github.com/paperless-ngx/paperless-ngx.git
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427 lines
14 KiB
Python
427 lines
14 KiB
Python
import os
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import tempfile
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from pathlib import Path
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from unittest import mock
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import pytest
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from django.conf import settings
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from django.test import override_settings
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from django.test import TestCase
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from documents.classifier import DocumentClassifier
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from documents.classifier import IncompatibleClassifierVersionError
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from documents.classifier import load_classifier
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from documents.models import Correspondent
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from documents.models import Document
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from documents.models import DocumentType
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from documents.models import Tag
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from documents.tests.utils import DirectoriesMixin
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class TestClassifier(DirectoriesMixin, TestCase):
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def setUp(self):
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super().setUp()
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self.classifier = DocumentClassifier()
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def generate_test_data(self):
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self.c1 = Correspondent.objects.create(
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name="c1",
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matching_algorithm=Correspondent.MATCH_AUTO,
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)
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self.c2 = Correspondent.objects.create(name="c2")
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self.c3 = Correspondent.objects.create(
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name="c3",
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matching_algorithm=Correspondent.MATCH_AUTO,
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)
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self.t1 = Tag.objects.create(
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name="t1",
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matching_algorithm=Tag.MATCH_AUTO,
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pk=12,
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)
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self.t2 = Tag.objects.create(
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name="t2",
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matching_algorithm=Tag.MATCH_ANY,
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pk=34,
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is_inbox_tag=True,
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)
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self.t3 = Tag.objects.create(
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name="t3",
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matching_algorithm=Tag.MATCH_AUTO,
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pk=45,
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)
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self.dt = DocumentType.objects.create(
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name="dt",
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matching_algorithm=DocumentType.MATCH_AUTO,
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)
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self.dt2 = DocumentType.objects.create(
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name="dt2",
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matching_algorithm=DocumentType.MATCH_AUTO,
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)
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self.doc1 = Document.objects.create(
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title="doc1",
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content="this is a document from c1",
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correspondent=self.c1,
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checksum="A",
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document_type=self.dt,
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)
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self.doc2 = Document.objects.create(
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title="doc1",
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content="this is another document, but from c2",
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correspondent=self.c2,
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checksum="B",
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)
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self.doc_inbox = Document.objects.create(
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title="doc235",
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content="aa",
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checksum="C",
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)
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self.doc1.tags.add(self.t1)
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self.doc2.tags.add(self.t1)
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self.doc2.tags.add(self.t3)
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self.doc_inbox.tags.add(self.t2)
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def testNoTrainingData(self):
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try:
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self.classifier.train()
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except ValueError as e:
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self.assertEqual(str(e), "No training data available.")
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else:
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self.fail("Should raise exception")
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def testEmpty(self):
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Document.objects.create(title="WOW", checksum="3457", content="ASD")
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self.classifier.train()
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self.assertIsNone(self.classifier.document_type_classifier)
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self.assertIsNone(self.classifier.tags_classifier)
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self.assertIsNone(self.classifier.correspondent_classifier)
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self.assertListEqual(self.classifier.predict_tags(""), [])
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self.assertIsNone(self.classifier.predict_document_type(""))
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self.assertIsNone(self.classifier.predict_correspondent(""))
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def testTrain(self):
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self.generate_test_data()
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self.classifier.train()
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self.assertListEqual(
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list(self.classifier.correspondent_classifier.classes_),
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[-1, self.c1.pk],
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)
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self.assertListEqual(
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list(self.classifier.tags_binarizer.classes_),
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[self.t1.pk, self.t3.pk],
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)
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def testPredict(self):
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self.generate_test_data()
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self.classifier.train()
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self.assertEqual(
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self.classifier.predict_correspondent(self.doc1.content),
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self.c1.pk,
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)
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self.assertEqual(self.classifier.predict_correspondent(self.doc2.content), None)
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self.assertListEqual(
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self.classifier.predict_tags(self.doc1.content),
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[self.t1.pk],
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)
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self.assertListEqual(
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self.classifier.predict_tags(self.doc2.content),
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[self.t1.pk, self.t3.pk],
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)
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self.assertEqual(
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self.classifier.predict_document_type(self.doc1.content),
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self.dt.pk,
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)
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self.assertEqual(self.classifier.predict_document_type(self.doc2.content), None)
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def testDatasetHashing(self):
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self.generate_test_data()
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self.assertTrue(self.classifier.train())
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self.assertFalse(self.classifier.train())
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def testVersionIncreased(self):
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self.generate_test_data()
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self.assertTrue(self.classifier.train())
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self.assertFalse(self.classifier.train())
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self.classifier.save()
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classifier2 = DocumentClassifier()
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current_ver = DocumentClassifier.FORMAT_VERSION
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with mock.patch(
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"documents.classifier.DocumentClassifier.FORMAT_VERSION",
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current_ver + 1,
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):
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# assure that we won't load old classifiers.
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self.assertRaises(IncompatibleClassifierVersionError, classifier2.load)
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self.classifier.save()
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# assure that we can load the classifier after saving it.
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classifier2.load()
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@override_settings(DATA_DIR=tempfile.mkdtemp())
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def testSaveClassifier(self):
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self.generate_test_data()
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self.classifier.train()
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self.classifier.save()
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new_classifier = DocumentClassifier()
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new_classifier.load()
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self.assertFalse(new_classifier.train())
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@override_settings(
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MODEL_FILE=os.path.join(os.path.dirname(__file__), "data", "model.pickle"),
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)
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def test_load_and_classify(self):
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self.generate_test_data()
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new_classifier = DocumentClassifier()
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new_classifier.load()
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self.assertCountEqual(new_classifier.predict_tags(self.doc2.content), [45, 12])
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def test_one_correspondent_predict(self):
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c1 = Correspondent.objects.create(
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name="c1",
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matching_algorithm=Correspondent.MATCH_AUTO,
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)
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doc1 = Document.objects.create(
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title="doc1",
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content="this is a document from c1",
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correspondent=c1,
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checksum="A",
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)
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self.classifier.train()
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self.assertEqual(self.classifier.predict_correspondent(doc1.content), c1.pk)
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def test_one_correspondent_predict_manydocs(self):
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c1 = Correspondent.objects.create(
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name="c1",
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matching_algorithm=Correspondent.MATCH_AUTO,
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)
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doc1 = Document.objects.create(
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title="doc1",
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content="this is a document from c1",
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correspondent=c1,
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checksum="A",
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)
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doc2 = Document.objects.create(
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title="doc2",
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content="this is a document from noone",
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checksum="B",
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)
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self.classifier.train()
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self.assertEqual(self.classifier.predict_correspondent(doc1.content), c1.pk)
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self.assertIsNone(self.classifier.predict_correspondent(doc2.content))
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def test_one_type_predict(self):
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dt = DocumentType.objects.create(
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name="dt",
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matching_algorithm=DocumentType.MATCH_AUTO,
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)
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doc1 = Document.objects.create(
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title="doc1",
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content="this is a document from c1",
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checksum="A",
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document_type=dt,
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)
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self.classifier.train()
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self.assertEqual(self.classifier.predict_document_type(doc1.content), dt.pk)
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def test_one_type_predict_manydocs(self):
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dt = DocumentType.objects.create(
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name="dt",
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matching_algorithm=DocumentType.MATCH_AUTO,
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)
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doc1 = Document.objects.create(
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title="doc1",
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content="this is a document from c1",
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checksum="A",
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document_type=dt,
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)
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doc2 = Document.objects.create(
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title="doc1",
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content="this is a document from c2",
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checksum="B",
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)
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self.classifier.train()
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self.assertEqual(self.classifier.predict_document_type(doc1.content), dt.pk)
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self.assertIsNone(self.classifier.predict_document_type(doc2.content))
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def test_one_tag_predict(self):
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t1 = Tag.objects.create(name="t1", matching_algorithm=Tag.MATCH_AUTO, pk=12)
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doc1 = Document.objects.create(
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title="doc1",
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content="this is a document from c1",
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checksum="A",
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)
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doc1.tags.add(t1)
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self.classifier.train()
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self.assertListEqual(self.classifier.predict_tags(doc1.content), [t1.pk])
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def test_one_tag_predict_unassigned(self):
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t1 = Tag.objects.create(name="t1", matching_algorithm=Tag.MATCH_AUTO, pk=12)
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doc1 = Document.objects.create(
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title="doc1",
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content="this is a document from c1",
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checksum="A",
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)
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self.classifier.train()
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self.assertListEqual(self.classifier.predict_tags(doc1.content), [])
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def test_two_tags_predict_singledoc(self):
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t1 = Tag.objects.create(name="t1", matching_algorithm=Tag.MATCH_AUTO, pk=12)
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t2 = Tag.objects.create(name="t2", matching_algorithm=Tag.MATCH_AUTO, pk=121)
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doc4 = Document.objects.create(
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title="doc1",
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content="this is a document from c4",
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checksum="D",
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)
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doc4.tags.add(t1)
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doc4.tags.add(t2)
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self.classifier.train()
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self.assertListEqual(self.classifier.predict_tags(doc4.content), [t1.pk, t2.pk])
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def test_two_tags_predict(self):
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t1 = Tag.objects.create(name="t1", matching_algorithm=Tag.MATCH_AUTO, pk=12)
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t2 = Tag.objects.create(name="t2", matching_algorithm=Tag.MATCH_AUTO, pk=121)
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doc1 = Document.objects.create(
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title="doc1",
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content="this is a document from c1",
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checksum="A",
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)
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doc2 = Document.objects.create(
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title="doc1",
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content="this is a document from c2",
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checksum="B",
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)
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doc3 = Document.objects.create(
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title="doc1",
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content="this is a document from c3",
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checksum="C",
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)
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doc4 = Document.objects.create(
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title="doc1",
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content="this is a document from c4",
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checksum="D",
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)
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doc1.tags.add(t1)
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doc2.tags.add(t2)
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doc4.tags.add(t1)
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doc4.tags.add(t2)
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self.classifier.train()
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self.assertListEqual(self.classifier.predict_tags(doc1.content), [t1.pk])
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self.assertListEqual(self.classifier.predict_tags(doc2.content), [t2.pk])
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self.assertListEqual(self.classifier.predict_tags(doc3.content), [])
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self.assertListEqual(self.classifier.predict_tags(doc4.content), [t1.pk, t2.pk])
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def test_one_tag_predict_multi(self):
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t1 = Tag.objects.create(name="t1", matching_algorithm=Tag.MATCH_AUTO, pk=12)
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doc1 = Document.objects.create(
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title="doc1",
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content="this is a document from c1",
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checksum="A",
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)
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doc2 = Document.objects.create(
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title="doc2",
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content="this is a document from c2",
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checksum="B",
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)
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doc1.tags.add(t1)
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doc2.tags.add(t1)
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self.classifier.train()
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self.assertListEqual(self.classifier.predict_tags(doc1.content), [t1.pk])
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self.assertListEqual(self.classifier.predict_tags(doc2.content), [t1.pk])
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def test_one_tag_predict_multi_2(self):
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t1 = Tag.objects.create(name="t1", matching_algorithm=Tag.MATCH_AUTO, pk=12)
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doc1 = Document.objects.create(
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title="doc1",
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content="this is a document from c1",
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checksum="A",
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)
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doc2 = Document.objects.create(
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title="doc2",
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content="this is a document from c2",
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checksum="B",
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)
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doc1.tags.add(t1)
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self.classifier.train()
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self.assertListEqual(self.classifier.predict_tags(doc1.content), [t1.pk])
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self.assertListEqual(self.classifier.predict_tags(doc2.content), [])
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def test_load_classifier_not_exists(self):
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self.assertFalse(os.path.exists(settings.MODEL_FILE))
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self.assertIsNone(load_classifier())
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@mock.patch("documents.classifier.DocumentClassifier.load")
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def test_load_classifier(self, load):
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Path(settings.MODEL_FILE).touch()
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self.assertIsNotNone(load_classifier())
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load.assert_called_once()
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@override_settings(
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CACHES={
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"default": {"BACKEND": "django.core.cache.backends.locmem.LocMemCache"},
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},
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)
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@override_settings(
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MODEL_FILE=os.path.join(os.path.dirname(__file__), "data", "model.pickle"),
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)
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@pytest.mark.skip(
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reason="Disabled caching due to high memory usage - need to investigate.",
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)
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def test_load_classifier_cached(self):
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classifier = load_classifier()
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self.assertIsNotNone(classifier)
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with mock.patch("documents.classifier.DocumentClassifier.load") as load:
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classifier2 = load_classifier()
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load.assert_not_called()
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@mock.patch("documents.classifier.DocumentClassifier.load")
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def test_load_classifier_incompatible_version(self, load):
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Path(settings.MODEL_FILE).touch()
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self.assertTrue(os.path.exists(settings.MODEL_FILE))
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load.side_effect = IncompatibleClassifierVersionError()
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self.assertIsNone(load_classifier())
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self.assertFalse(os.path.exists(settings.MODEL_FILE))
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@mock.patch("documents.classifier.DocumentClassifier.load")
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def test_load_classifier_os_error(self, load):
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Path(settings.MODEL_FILE).touch()
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self.assertTrue(os.path.exists(settings.MODEL_FILE))
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load.side_effect = OSError()
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self.assertIsNone(load_classifier())
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self.assertTrue(os.path.exists(settings.MODEL_FILE))
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