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289 lines
12 KiB
Python
289 lines
12 KiB
Python
"""
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Test PostgreSQL full text search.
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These tests use dialogue from the 1975 film Monty Python and the Holy Grail.
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All text copyright Python (Monty) Pictures. Thanks to sacred-texts.com for the
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transcript.
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"""
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from django.contrib.postgres.search import (
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SearchQuery, SearchRank, SearchVector,
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)
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from django.db.models import F
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from django.test import modify_settings
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from . import PostgreSQLTestCase
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from .models import Character, Line, Scene
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class GrailTestData:
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@classmethod
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def setUpTestData(cls):
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cls.robin = Scene.objects.create(scene='Scene 10', setting='The dark forest of Ewing')
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cls.minstrel = Character.objects.create(name='Minstrel')
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verses = [
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(
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'Bravely bold Sir Robin, rode forth from Camelot. '
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'He was not afraid to die, o Brave Sir Robin. '
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'He was not at all afraid to be killed in nasty ways. '
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'Brave, brave, brave, brave Sir Robin!'
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),
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(
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'He was not in the least bit scared to be mashed into a pulp, '
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'Or to have his eyes gouged out, and his elbows broken. '
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'To have his kneecaps split, and his body burned away, '
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'And his limbs all hacked and mangled, brave Sir Robin!'
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),
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(
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'His head smashed in and his heart cut out, '
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'And his liver removed and his bowels unplugged, '
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'And his nostrils ripped and his bottom burned off,'
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'And his --'
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),
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]
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cls.verses = [Line.objects.create(
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scene=cls.robin,
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character=cls.minstrel,
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dialogue=verse,
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) for verse in verses]
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cls.verse0, cls.verse1, cls.verse2 = cls.verses
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cls.witch_scene = Scene.objects.create(scene='Scene 5', setting="Sir Bedemir's Castle")
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bedemir = Character.objects.create(name='Bedemir')
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crowd = Character.objects.create(name='Crowd')
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witch = Character.objects.create(name='Witch')
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duck = Character.objects.create(name='Duck')
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cls.bedemir0 = Line.objects.create(
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scene=cls.witch_scene,
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character=bedemir,
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dialogue='We shall use my larger scales!',
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dialogue_config='english',
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)
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cls.bedemir1 = Line.objects.create(
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scene=cls.witch_scene,
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character=bedemir,
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dialogue='Right, remove the supports!',
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dialogue_config='english',
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)
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cls.duck = Line.objects.create(scene=cls.witch_scene, character=duck, dialogue=None)
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cls.crowd = Line.objects.create(scene=cls.witch_scene, character=crowd, dialogue='A witch! A witch!')
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cls.witch = Line.objects.create(scene=cls.witch_scene, character=witch, dialogue="It's a fair cop.")
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trojan_rabbit = Scene.objects.create(scene='Scene 8', setting="The castle of Our Master Ruiz' de lu la Ramper")
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guards = Character.objects.create(name='French Guards')
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cls.french = Line.objects.create(
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scene=trojan_rabbit,
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character=guards,
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dialogue='Oh. Un cadeau. Oui oui.',
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dialogue_config='french',
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)
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@modify_settings(INSTALLED_APPS={'append': 'django.contrib.postgres'})
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class SimpleSearchTest(GrailTestData, PostgreSQLTestCase):
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def test_simple(self):
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searched = Line.objects.filter(dialogue__search='elbows')
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self.assertSequenceEqual(searched, [self.verse1])
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def test_non_exact_match(self):
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searched = Line.objects.filter(dialogue__search='hearts')
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self.assertSequenceEqual(searched, [self.verse2])
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def test_search_two_terms(self):
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searched = Line.objects.filter(dialogue__search='heart bowel')
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self.assertSequenceEqual(searched, [self.verse2])
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def test_search_two_terms_with_partial_match(self):
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searched = Line.objects.filter(dialogue__search='Robin killed')
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self.assertSequenceEqual(searched, [self.verse0])
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@modify_settings(INSTALLED_APPS={'append': 'django.contrib.postgres'})
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class SearchVectorFieldTest(GrailTestData, PostgreSQLTestCase):
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def test_existing_vector(self):
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Line.objects.update(dialogue_search_vector=SearchVector('dialogue'))
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searched = Line.objects.filter(dialogue_search_vector=SearchQuery('Robin killed'))
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self.assertSequenceEqual(searched, [self.verse0])
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def test_existing_vector_config_explicit(self):
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Line.objects.update(dialogue_search_vector=SearchVector('dialogue'))
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searched = Line.objects.filter(dialogue_search_vector=SearchQuery('cadeaux', config='french'))
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self.assertSequenceEqual(searched, [self.french])
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class MultipleFieldsTest(GrailTestData, PostgreSQLTestCase):
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def test_simple_on_dialogue(self):
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searched = Line.objects.annotate(
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search=SearchVector('scene__setting', 'dialogue'),
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).filter(search='elbows')
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self.assertSequenceEqual(searched, [self.verse1])
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def test_simple_on_scene(self):
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searched = Line.objects.annotate(
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search=SearchVector('scene__setting', 'dialogue'),
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).filter(search='Forest')
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self.assertSequenceEqual(searched, self.verses)
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def test_non_exact_match(self):
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searched = Line.objects.annotate(
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search=SearchVector('scene__setting', 'dialogue'),
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).filter(search='heart')
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self.assertSequenceEqual(searched, [self.verse2])
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def test_search_two_terms(self):
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searched = Line.objects.annotate(
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search=SearchVector('scene__setting', 'dialogue'),
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).filter(search='heart forest')
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self.assertSequenceEqual(searched, [self.verse2])
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def test_terms_adjacent(self):
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searched = Line.objects.annotate(
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search=SearchVector('character__name', 'dialogue'),
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).filter(search='minstrel')
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self.assertSequenceEqual(searched, self.verses)
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searched = Line.objects.annotate(
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search=SearchVector('scene__setting', 'dialogue'),
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).filter(search='minstrelbravely')
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self.assertSequenceEqual(searched, [])
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def test_search_with_null(self):
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searched = Line.objects.annotate(
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search=SearchVector('scene__setting', 'dialogue'),
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).filter(search='bedemir')
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self.assertEqual(set(searched), {self.bedemir0, self.bedemir1, self.crowd, self.witch, self.duck})
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def test_config_query_explicit(self):
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searched = Line.objects.annotate(
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search=SearchVector('scene__setting', 'dialogue', config='french'),
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).filter(search=SearchQuery('cadeaux', config='french'))
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self.assertSequenceEqual(searched, [self.french])
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def test_config_query_implicit(self):
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searched = Line.objects.annotate(
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search=SearchVector('scene__setting', 'dialogue', config='french'),
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).filter(search='cadeaux')
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self.assertSequenceEqual(searched, [self.french])
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def test_config_from_field_explicit(self):
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searched = Line.objects.annotate(
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search=SearchVector('scene__setting', 'dialogue', config=F('dialogue_config')),
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).filter(search=SearchQuery('cadeaux', config=F('dialogue_config')))
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self.assertSequenceEqual(searched, [self.french])
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def test_config_from_field_implicit(self):
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searched = Line.objects.annotate(
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search=SearchVector('scene__setting', 'dialogue', config=F('dialogue_config')),
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).filter(search='cadeaux')
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self.assertSequenceEqual(searched, [self.french])
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@modify_settings(INSTALLED_APPS={'append': 'django.contrib.postgres'})
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class TestCombinations(GrailTestData, PostgreSQLTestCase):
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def test_vector_add(self):
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searched = Line.objects.annotate(
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search=SearchVector('scene__setting') + SearchVector('character__name'),
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).filter(search='bedemir')
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self.assertEqual(set(searched), {self.bedemir0, self.bedemir1, self.crowd, self.witch, self.duck})
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def test_vector_add_multi(self):
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searched = Line.objects.annotate(
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search=(
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SearchVector('scene__setting') +
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SearchVector('character__name') +
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SearchVector('dialogue')
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),
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).filter(search='bedemir')
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self.assertEqual(set(searched), {self.bedemir0, self.bedemir1, self.crowd, self.witch, self.duck})
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def test_query_and(self):
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searched = Line.objects.annotate(
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search=SearchVector('scene__setting', 'dialogue'),
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).filter(search=SearchQuery('bedemir') & SearchQuery('scales'))
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self.assertSequenceEqual(searched, [self.bedemir0])
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def test_query_multiple_and(self):
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searched = Line.objects.annotate(
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search=SearchVector('scene__setting', 'dialogue'),
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).filter(search=SearchQuery('bedemir') & SearchQuery('scales') & SearchQuery('nostrils'))
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self.assertSequenceEqual(searched, [])
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searched = Line.objects.annotate(
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search=SearchVector('scene__setting', 'dialogue'),
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).filter(search=SearchQuery('shall') & SearchQuery('use') & SearchQuery('larger'))
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self.assertSequenceEqual(searched, [self.bedemir0])
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def test_query_or(self):
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searched = Line.objects.filter(dialogue__search=SearchQuery('kneecaps') | SearchQuery('nostrils'))
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self.assertEqual(set(searched), {self.verse1, self.verse2})
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def test_query_multiple_or(self):
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searched = Line.objects.filter(
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dialogue__search=SearchQuery('kneecaps') | SearchQuery('nostrils') | SearchQuery('Sir Robin')
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)
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self.assertEqual(set(searched), {self.verse1, self.verse2, self.verse0})
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def test_query_invert(self):
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searched = Line.objects.filter(character=self.minstrel, dialogue__search=~SearchQuery('kneecaps'))
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self.assertEqual(set(searched), {self.verse0, self.verse2})
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def test_query_config_mismatch(self):
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with self.assertRaisesMessage(TypeError, "SearchQuery configs don't match."):
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Line.objects.filter(
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dialogue__search=SearchQuery('kneecaps', config='german') |
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SearchQuery('nostrils', config='english')
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)
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def test_query_combined_mismatch(self):
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msg = "SearchQuery can only be combined with other SearchQuerys, got"
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with self.assertRaisesMessage(TypeError, msg):
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Line.objects.filter(dialogue__search=None | SearchQuery('kneecaps'))
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with self.assertRaisesMessage(TypeError, msg):
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Line.objects.filter(dialogue__search=None & SearchQuery('kneecaps'))
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@modify_settings(INSTALLED_APPS={'append': 'django.contrib.postgres'})
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class TestRankingAndWeights(GrailTestData, PostgreSQLTestCase):
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def test_ranking(self):
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searched = Line.objects.filter(character=self.minstrel).annotate(
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rank=SearchRank(SearchVector('dialogue'), SearchQuery('brave sir robin')),
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).order_by('rank')
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self.assertSequenceEqual(searched, [self.verse2, self.verse1, self.verse0])
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def test_rank_passing_untyped_args(self):
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searched = Line.objects.filter(character=self.minstrel).annotate(
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rank=SearchRank('dialogue', 'brave sir robin'),
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).order_by('rank')
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self.assertSequenceEqual(searched, [self.verse2, self.verse1, self.verse0])
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def test_weights_in_vector(self):
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vector = SearchVector('dialogue', weight='A') + SearchVector('character__name', weight='D')
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searched = Line.objects.filter(scene=self.witch_scene).annotate(
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rank=SearchRank(vector, SearchQuery('witch')),
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).order_by('-rank')[:2]
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self.assertSequenceEqual(searched, [self.crowd, self.witch])
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vector = SearchVector('dialogue', weight='D') + SearchVector('character__name', weight='A')
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searched = Line.objects.filter(scene=self.witch_scene).annotate(
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rank=SearchRank(vector, SearchQuery('witch')),
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).order_by('-rank')[:2]
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self.assertSequenceEqual(searched, [self.witch, self.crowd])
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def test_ranked_custom_weights(self):
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vector = SearchVector('dialogue', weight='D') + SearchVector('character__name', weight='A')
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searched = Line.objects.filter(scene=self.witch_scene).annotate(
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rank=SearchRank(vector, SearchQuery('witch'), weights=[1, 0, 0, 0.5]),
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).order_by('-rank')[:2]
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self.assertSequenceEqual(searched, [self.crowd, self.witch])
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def test_ranking_chaining(self):
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searched = Line.objects.filter(character=self.minstrel).annotate(
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rank=SearchRank(SearchVector('dialogue'), SearchQuery('brave sir robin')),
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).filter(rank__gt=0.3)
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self.assertSequenceEqual(searched, [self.verse0])
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