def test_arrange_for_graph(self):
"Tests auto-naming of migrations for graph matching."
# Make a fake graph
graph = MigrationGraph()
graph.add_node(("testapp", "0001_initial"), None)
graph.add_node(("testapp", "0002_foobar"), None)
graph.add_node(("otherapp", "0001_initial"), None)
graph.add_dependency(("testapp", "0002_foobar"),
("testapp", "0001_initial"))
graph.add_dependency(("testapp", "0002_foobar"),
("otherapp", "0001_initial"))
# Use project state to make a new migration change set
before = self.make_project_state([])
after = self.make_project_state(
[self.author_empty, self.other_pony, self.other_stable])
autodetector = MigrationAutodetector(before, after)
changes = autodetector._detect_changes()
# Run through arrange_for_graph
changes = autodetector._arrange_for_graph(changes, graph)
# Make sure there's a new name, deps match, etc.
self.assertEqual(changes["testapp"][0].name, "0003_author")
self.assertEqual(changes["testapp"][0].dependencies,
[("testapp", "0002_foobar")])
self.assertEqual(changes["otherapp"][0].name, "0002_pony_stable")
self.assertEqual(changes["otherapp"][0].dependencies,
[("otherapp", "0001_initial")])
def test_trim_apps(self):
"Tests that trim does not remove dependencies but does remove unwanted apps"
# Use project state to make a new migration change set
before = self.make_project_state([])
after = self.make_project_state([self.author_empty, self.other_pony, self.other_stable, self.third_thing])
autodetector = MigrationAutodetector(before, after, MigrationQuestioner({"ask_initial": True}))
changes = autodetector._detect_changes()
# Run through arrange_for_graph
graph = MigrationGraph()
changes = autodetector._arrange_for_graph(changes, graph)
changes["testapp"][0].dependencies.append(("otherapp", "0001_initial"))
changes = autodetector._trim_to_apps(changes, set(["testapp"]))
# Make sure there's the right set of migrations
self.assertEqual(changes["testapp"][0].name, "0001_initial")
self.assertEqual(changes["otherapp"][0].name, "0001_initial")
self.assertNotIn("thirdapp", changes)
def test_trim_apps(self):
"Tests that trim does not remove dependencies but does remove unwanted apps"
# Use project state to make a new migration change set
before = self.make_project_state([])
after = self.make_project_state([self.author_empty, self.other_pony, self.other_stable, self.third_thing])
autodetector = MigrationAutodetector(before, after, MigrationQuestioner({"ask_initial": True}))
changes = autodetector._detect_changes()
# Run through arrange_for_graph
graph = MigrationGraph()
changes = autodetector._arrange_for_graph(changes, graph)
changes["testapp"][0].dependencies.append(("otherapp", "0001_initial"))
changes = autodetector._trim_to_apps(changes, set(["testapp"]))
# Make sure there's the right set of migrations
self.assertEqual(changes["testapp"][0].name, "0001_initial")
self.assertEqual(changes["otherapp"][0].name, "0001_initial")
self.assertNotIn("thirdapp", changes)
def test_arrange_for_graph(self):
"Tests auto-naming of migrations for graph matching."
# Make a fake graph
graph = MigrationGraph()
graph.add_node(("testapp", "0001_initial"), None)
graph.add_node(("testapp", "0002_foobar"), None)
graph.add_node(("otherapp", "0001_initial"), None)
graph.add_dependency(("testapp", "0002_foobar"), ("testapp", "0001_initial"))
graph.add_dependency(("testapp", "0002_foobar"), ("otherapp", "0001_initial"))
# Use project state to make a new migration change set
before = self.make_project_state([])
after = self.make_project_state([self.author_empty, self.other_pony, self.other_stable])
autodetector = MigrationAutodetector(before, after)
changes = autodetector._detect_changes()
# Run through arrange_for_graph
changes = autodetector._arrange_for_graph(changes, graph)
# Make sure there's a new name, deps match, etc.
self.assertEqual(changes["testapp"][0].name, "0003_author")
self.assertEqual(changes["testapp"][0].dependencies, [("testapp", "0002_foobar")])
self.assertEqual(changes["otherapp"][0].name, "0002_pony_stable")
self.assertEqual(changes["otherapp"][0].dependencies, [("otherapp", "0001_initial")])
