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			127 lines
		
	
	
	
		
			5.2 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			127 lines
		
	
	
	
		
			5.2 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
from __future__ import unicode_literals
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from django.apps import apps
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from django.conf import settings
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from django.db import connection
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from django.test import TestCase, skipIfDBFeature, skipUnlessDBFeature
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from .models.tablespaces import (
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    Article, ArticleRef, Authors, Reviewers, Scientist, ScientistRef,
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)
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def sql_for_table(model):
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    with connection.schema_editor(collect_sql=True) as editor:
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        editor.create_model(model)
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    return editor.collected_sql[0]
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def sql_for_index(model):
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    return '\n'.join(connection.schema_editor()._model_indexes_sql(model))
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# We can't test the DEFAULT_TABLESPACE and DEFAULT_INDEX_TABLESPACE settings
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# because they're evaluated when the model class is defined. As a consequence,
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# @override_settings doesn't work, and the tests depend
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class TablespacesTests(TestCase):
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    def setUp(self):
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        # The unmanaged models need to be removed after the test in order to
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        # prevent bad interactions with the flush operation in other tests.
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        self._old_models = apps.app_configs['model_options'].models.copy()
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        for model in Article, Authors, Reviewers, Scientist:
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            model._meta.managed = True
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    def tearDown(self):
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        for model in Article, Authors, Reviewers, Scientist:
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            model._meta.managed = False
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        apps.app_configs['model_options'].models = self._old_models
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        apps.all_models['model_options'] = self._old_models
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        apps.clear_cache()
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    def assertNumContains(self, haystack, needle, count):
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        real_count = haystack.count(needle)
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        self.assertEqual(real_count, count, "Found %d instances of '%s', expected %d" % (real_count, needle, count))
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    @skipUnlessDBFeature('supports_tablespaces')
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    def test_tablespace_for_model(self):
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        sql = sql_for_table(Scientist).lower()
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        if settings.DEFAULT_INDEX_TABLESPACE:
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            # 1 for the table
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            self.assertNumContains(sql, 'tbl_tbsp', 1)
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            # 1 for the index on the primary key
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            self.assertNumContains(sql, settings.DEFAULT_INDEX_TABLESPACE, 1)
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        else:
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            # 1 for the table + 1 for the index on the primary key
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            self.assertNumContains(sql, 'tbl_tbsp', 2)
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    @skipIfDBFeature('supports_tablespaces')
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    def test_tablespace_ignored_for_model(self):
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        # No tablespace-related SQL
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        self.assertEqual(sql_for_table(Scientist),
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                         sql_for_table(ScientistRef))
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    @skipUnlessDBFeature('supports_tablespaces')
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    def test_tablespace_for_indexed_field(self):
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        sql = sql_for_table(Article).lower()
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        if settings.DEFAULT_INDEX_TABLESPACE:
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            # 1 for the table
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            self.assertNumContains(sql, 'tbl_tbsp', 1)
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            # 1 for the primary key + 1 for the index on code
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            self.assertNumContains(sql, settings.DEFAULT_INDEX_TABLESPACE, 2)
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        else:
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            # 1 for the table + 1 for the primary key + 1 for the index on code
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            self.assertNumContains(sql, 'tbl_tbsp', 3)
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        # 1 for the index on reference
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        self.assertNumContains(sql, 'idx_tbsp', 1)
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    @skipIfDBFeature('supports_tablespaces')
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    def test_tablespace_ignored_for_indexed_field(self):
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        # No tablespace-related SQL
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        self.assertEqual(sql_for_table(Article),
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                         sql_for_table(ArticleRef))
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    @skipUnlessDBFeature('supports_tablespaces')
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    def test_tablespace_for_many_to_many_field(self):
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        sql = sql_for_table(Authors).lower()
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        # The join table of the ManyToManyField goes to the model's tablespace,
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        # and its indexes too, unless DEFAULT_INDEX_TABLESPACE is set.
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        if settings.DEFAULT_INDEX_TABLESPACE:
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            # 1 for the table
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            self.assertNumContains(sql, 'tbl_tbsp', 1)
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            # 1 for the primary key
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            self.assertNumContains(sql, settings.DEFAULT_INDEX_TABLESPACE, 1)
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        else:
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            # 1 for the table + 1 for the index on the primary key
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            self.assertNumContains(sql, 'tbl_tbsp', 2)
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        self.assertNumContains(sql, 'idx_tbsp', 0)
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        sql = sql_for_index(Authors).lower()
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        # The ManyToManyField declares no db_tablespace, its indexes go to
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        # the model's tablespace, unless DEFAULT_INDEX_TABLESPACE is set.
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        if settings.DEFAULT_INDEX_TABLESPACE:
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            self.assertNumContains(sql, settings.DEFAULT_INDEX_TABLESPACE, 2)
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        else:
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            self.assertNumContains(sql, 'tbl_tbsp', 2)
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        self.assertNumContains(sql, 'idx_tbsp', 0)
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        sql = sql_for_table(Reviewers).lower()
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        # The join table of the ManyToManyField goes to the model's tablespace,
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        # and its indexes too, unless DEFAULT_INDEX_TABLESPACE is set.
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        if settings.DEFAULT_INDEX_TABLESPACE:
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            # 1 for the table
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            self.assertNumContains(sql, 'tbl_tbsp', 1)
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            # 1 for the primary key
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            self.assertNumContains(sql, settings.DEFAULT_INDEX_TABLESPACE, 1)
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        else:
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            # 1 for the table + 1 for the index on the primary key
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            self.assertNumContains(sql, 'tbl_tbsp', 2)
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        self.assertNumContains(sql, 'idx_tbsp', 0)
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        sql = sql_for_index(Reviewers).lower()
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        # The ManyToManyField declares db_tablespace, its indexes go there.
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        self.assertNumContains(sql, 'tbl_tbsp', 0)
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        self.assertNumContains(sql, 'idx_tbsp', 2)
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