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58 lines
2.2 KiB
Python
58 lines
2.2 KiB
Python
from django.contrib.postgres.indexes import GinIndex
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from django.db import connection
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from . import PostgreSQLTestCase
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from .models import IntegerArrayModel
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class GinIndexTests(PostgreSQLTestCase):
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def test_repr(self):
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index = GinIndex(fields=['title'])
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self.assertEqual(repr(index), "<GinIndex: fields='title'>")
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def test_eq(self):
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index = GinIndex(fields=['title'])
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same_index = GinIndex(fields=['title'])
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another_index = GinIndex(fields=['author'])
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self.assertEqual(index, same_index)
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self.assertNotEqual(index, another_index)
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def test_name_auto_generation(self):
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index = GinIndex(fields=['field'])
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index.set_name_with_model(IntegerArrayModel)
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self.assertEqual(index.name, 'postgres_te_field_def2f8_gin')
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def test_deconstruction(self):
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index = GinIndex(fields=['title'], name='test_title_gin')
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path, args, kwargs = index.deconstruct()
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self.assertEqual(path, 'django.contrib.postgres.indexes.GinIndex')
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self.assertEqual(args, ())
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self.assertEqual(kwargs, {'fields': ['title'], 'name': 'test_title_gin'})
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class SchemaTests(PostgreSQLTestCase):
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def get_constraints(self, table):
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"""
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Get the indexes on the table using a new cursor.
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"""
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with connection.cursor() as cursor:
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return connection.introspection.get_constraints(cursor, table)
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def test_gin_index(self):
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# Ensure the table is there and doesn't have an index.
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self.assertNotIn('field', self.get_constraints(IntegerArrayModel._meta.db_table))
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# Add the index
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index_name = 'integer_array_model_field_gin'
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index = GinIndex(fields=['field'], name=index_name)
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with connection.schema_editor() as editor:
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editor.add_index(IntegerArrayModel, index)
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constraints = self.get_constraints(IntegerArrayModel._meta.db_table)
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# Check gin index was added
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self.assertEqual(constraints[index_name]['type'], 'gin')
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# Drop the index
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with connection.schema_editor() as editor:
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editor.remove_index(IntegerArrayModel, index)
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self.assertNotIn(index_name, self.get_constraints(IntegerArrayModel._meta.db_table))
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