Method test_run_with_squashed

tests/migrations/test_executor.py:80–123

Tests running a squashed migration from zero (should ignore what it replaces)

(self)

        MIGRATION_MODULES={"migrations": "migrations.test_migrations_squashed"}
    )
    def test_run_with_squashed(self):
        """
        Tests running a squashed migration from zero (should ignore what it
        replaces)
        """
        executor = MigrationExecutor(connection)
        # Check our leaf node is the squashed one
        leaves = [
            key for key in executor.loader.graph.leaf_nodes() if key[0] == "migrations"
        ]
        self.assertEqual(leaves, [("migrations", "0001_squashed_0002")])
        # Check the plan
        plan = executor.migration_plan([("migrations", "0001_squashed_0002")])
        self.assertEqual(
            plan,
            [
                (
                    executor.loader.graph.nodes["migrations", "0001_squashed_0002"],
                    False,
                ),
            ],
        )
        # Were the tables there before?
        self.assertTableNotExists("migrations_author")
        self.assertTableNotExists("migrations_book")
        # Alright, let's try running it
        executor.migrate([("migrations", "0001_squashed_0002")])
        # Are the tables there now?
        self.assertTableExists("migrations_author")
        self.assertTableExists("migrations_book")
        # Rebuild the graph to reflect the new DB state
        executor.loader.build_graph()
        # Alright, let's undo what we did. Should also just use squashed.
        plan = executor.migration_plan([("migrations", None)])
        self.assertEqual(
            plan,
            [
                (executor.loader.graph.nodes["migrations", "0001_squashed_0002"], True),
            ],
        )
        executor.migrate([("migrations", None)])
        # Are the tables gone?
        self.assertTableNotExists("migrations_author")
        self.assertTableNotExists("migrations_book")

    @override_settings(
        MIGRATION_MODULES={"migrations": "migrations.test_migrations_squashed"},