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