1 files changed, 236 insertions, 0 deletions
diff --git a/parts/django/tests/modeltests/raw_query/tests.py b/parts/django/tests/modeltests/raw_query/tests.py
new file mode 100644
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+++ b/parts/django/tests/modeltests/raw_query/tests.py
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+from datetime import date
+
+from django.conf import settings
+from django.db import connection
+from django.db.models.sql.query import InvalidQuery
+from django.test import TestCase
+
+from models import Author, Book, Coffee, Reviewer, FriendlyAuthor
+
+
+class RawQueryTests(TestCase):
+    fixtures = ['raw_query_books.json']
+
+    def assertSuccessfulRawQuery(self, model, query, expected_results,
+            expected_annotations=(), params=[], translations=None):
+        """
+        Execute the passed query against the passed model and check the output
+        """
+        results = list(model.objects.raw(query, params=params, translations=translations))
+        self.assertProcessed(model, results, expected_results, expected_annotations)
+        self.assertAnnotations(results, expected_annotations)
+
+    def assertProcessed(self, model, results, orig, expected_annotations=()):
+        """
+        Compare the results of a raw query against expected results
+        """
+        self.assertEqual(len(results), len(orig))
+        for index, item in enumerate(results):
+            orig_item = orig[index]
+            for annotation in expected_annotations:
+                setattr(orig_item, *annotation)
+
+            for field in model._meta.fields:
+                # Check that all values on the model are equal
+                self.assertEquals(getattr(item,field.attname),
+                                  getattr(orig_item,field.attname))
+                # This includes checking that they are the same type
+                self.assertEquals(type(getattr(item,field.attname)),
+                                  type(getattr(orig_item,field.attname)))
+
+    def assertNoAnnotations(self, results):
+        """
+        Check that the results of a raw query contain no annotations
+        """
+        self.assertAnnotations(results, ())
+
+    def assertAnnotations(self, results, expected_annotations):
+        """
+        Check that the passed raw query results contain the expected
+        annotations
+        """
+        if expected_annotations:
+            for index, result in enumerate(results):
+                annotation, value = expected_annotations[index]
+                self.assertTrue(hasattr(result, annotation))
+                self.assertEqual(getattr(result, annotation), value)
+
+    def assert_num_queries(self, n, func, *args, **kwargs):
+        old_DEBUG = settings.DEBUG
+        settings.DEBUG = True
+        starting_queries = len(connection.queries)
+        try:
+            func(*args, **kwargs)
+        finally:
+            settings.DEBUG = old_DEBUG
+        self.assertEqual(starting_queries + n, len(connection.queries))
+
+    def testSimpleRawQuery(self):
+        """
+        Basic test of raw query with a simple database query
+        """
+        query = "SELECT * FROM raw_query_author"
+        authors = Author.objects.all()
+        self.assertSuccessfulRawQuery(Author, query, authors)
+
+    def testRawQueryLazy(self):
+        """
+        Raw queries are lazy: they aren't actually executed until they're
+        iterated over.
+        """
+        q = Author.objects.raw('SELECT * FROM raw_query_author')
+        self.assert_(q.query.cursor is None)
+        list(q)
+        self.assert_(q.query.cursor is not None)
+
+    def testFkeyRawQuery(self):
+        """
+        Test of a simple raw query against a model containing a foreign key
+        """
+        query = "SELECT * FROM raw_query_book"
+        books = Book.objects.all()
+        self.assertSuccessfulRawQuery(Book, query, books)
+
+    def testDBColumnHandler(self):
+        """
+        Test of a simple raw query against a model containing a field with
+        db_column defined.
+        """
+        query = "SELECT * FROM raw_query_coffee"
+        coffees = Coffee.objects.all()
+        self.assertSuccessfulRawQuery(Coffee, query, coffees)
+
+    def testOrderHandler(self):
+        """
+        Test of raw raw query's tolerance for columns being returned in any
+        order
+        """
+        selects = (
+            ('dob, last_name, first_name, id'),
+            ('last_name, dob, first_name, id'),
+            ('first_name, last_name, dob, id'),
+        )
+
+        for select in selects:
+            query = "SELECT %s FROM raw_query_author" % select
+            authors = Author.objects.all()
+            self.assertSuccessfulRawQuery(Author, query, authors)
+
+    def testTranslations(self):
+        """
+        Test of raw query's optional ability to translate unexpected result
+        column names to specific model fields
+        """
+        query = "SELECT first_name AS first, last_name AS last, dob, id FROM raw_query_author"
+        translations = {'first': 'first_name', 'last': 'last_name'}
+        authors = Author.objects.all()
+        self.assertSuccessfulRawQuery(Author, query, authors, translations=translations)
+
+    def testParams(self):
+        """
+        Test passing optional query parameters
+        """
+        query = "SELECT * FROM raw_query_author WHERE first_name = %s"
+        author = Author.objects.all()[2]
+        params = [author.first_name]
+        results = list(Author.objects.raw(query, params=params))
+        self.assertProcessed(Author, results, [author])
+        self.assertNoAnnotations(results)
+        self.assertEqual(len(results), 1)
+
+    def testManyToMany(self):
+        """
+        Test of a simple raw query against a model containing a m2m field
+        """
+        query = "SELECT * FROM raw_query_reviewer"
+        reviewers = Reviewer.objects.all()
+        self.assertSuccessfulRawQuery(Reviewer, query, reviewers)
+
+    def testExtraConversions(self):
+        """
+        Test to insure that extra translations are ignored.
+        """
+        query = "SELECT * FROM raw_query_author"
+        translations = {'something': 'else'}
+        authors = Author.objects.all()
+        self.assertSuccessfulRawQuery(Author, query, authors, translations=translations)
+
+    def testMissingFields(self):
+        query = "SELECT id, first_name, dob FROM raw_query_author"
+        for author in Author.objects.raw(query):
+            self.assertNotEqual(author.first_name, None)
+            # last_name isn't given, but it will be retrieved on demand
+            self.assertNotEqual(author.last_name, None)
+
+    def testMissingFieldsWithoutPK(self):
+        query = "SELECT first_name, dob FROM raw_query_author"
+        try:
+            list(Author.objects.raw(query))
+            self.fail('Query without primary key should fail')
+        except InvalidQuery:
+            pass
+
+    def testAnnotations(self):
+        query = "SELECT a.*, count(b.id) as book_count FROM raw_query_author a LEFT JOIN raw_query_book b ON a.id = b.author_id GROUP BY a.id, a.first_name, a.last_name, a.dob ORDER BY a.id"
+        expected_annotations = (
+            ('book_count', 3),
+            ('book_count', 0),
+            ('book_count', 1),
+            ('book_count', 0),
+        )
+        authors = Author.objects.all()
+        self.assertSuccessfulRawQuery(Author, query, authors, expected_annotations)
+
+    def testInvalidQuery(self):
+        query = "UPDATE raw_query_author SET first_name='thing' WHERE first_name='Joe'"
+        self.assertRaises(InvalidQuery, Author.objects.raw, query)
+
+    def testWhiteSpaceQuery(self):
+        query = "    SELECT * FROM raw_query_author"
+        authors = Author.objects.all()
+        self.assertSuccessfulRawQuery(Author, query, authors)
+
+    def testMultipleIterations(self):
+        query = "SELECT * FROM raw_query_author"
+        normal_authors = Author.objects.all()
+        raw_authors = Author.objects.raw(query)
+
+        # First Iteration
+        first_iterations = 0
+        for index, raw_author in enumerate(raw_authors):
+            self.assertEqual(normal_authors[index], raw_author)
+            first_iterations += 1
+
+        # Second Iteration
+        second_iterations = 0
+        for index, raw_author in enumerate(raw_authors):
+            self.assertEqual(normal_authors[index], raw_author)
+            second_iterations += 1
+
+        self.assertEqual(first_iterations, second_iterations)
+
+    def testGetItem(self):
+        # Indexing on RawQuerySets
+        query = "SELECT * FROM raw_query_author ORDER BY id ASC"
+        third_author = Author.objects.raw(query)[2]
+        self.assertEqual(third_author.first_name, 'Bob')
+
+        first_two = Author.objects.raw(query)[0:2]
+        self.assertEquals(len(first_two), 2)
+
+        self.assertRaises(TypeError, lambda: Author.objects.raw(query)['test'])
+
+    def test_inheritance(self):
+        # date is the end of the Cuban Missile Crisis, I have no idea when
+        # Wesley was bron
+        f = FriendlyAuthor.objects.create(first_name="Wesley", last_name="Chun",
+            dob=date(1962, 10, 28))
+        query = "SELECT * FROM raw_query_friendlyauthor"
+        self.assertEqual(
+            [o.pk for o in FriendlyAuthor.objects.raw(query)], [f.pk]
+        )
+
+    def test_query_count(self):
+        self.assert_num_queries(1,
+            list, Author.objects.raw("SELECT * FROM raw_query_author")
+        )