def test_save_trees(self):
articles = [create_test_article(create=False, length=0, headline=str(i)) for i in range(10)]
tree1 = (articles[0], [
(articles[1], [
(articles[2], []),
(articles[3], [])
]),
(articles[4], [])
])
tree2 = (articles[5], [
(articles[6], [
(articles[7], []),
(articles[8], [])
]),
(articles[9], [])
])
tree1 = ArticleTree.from_tuples(tree1)
tree2 = ArticleTree.from_tuples(tree2)
# Trees are 3 levels deep, so it should take 3 queries to complete this request
self.assertNumQueries(3, Article.save_trees, [tree1, tree2])
articles = [Article.objects.get(headline=str(i)) for i in range(10)]
# Is the hierachy / order preserved?
self.assertEqual(tree1.obj, articles[0])
self.assertEqual(tree1.children[0].obj, articles[1])
self.assertEqual(tree1.children[0].children[0].obj, articles[2])
self.assertEqual(tree1.children[0].children[1].obj, articles[3])
self.assertEqual(tree1.children[1].obj, articles[4])
self.assertEqual(tree2.obj, articles[5])
self.assertEqual(tree2.children[0].obj, articles[6])
self.assertEqual(tree2.children[0].children[0].obj, articles[7])
self.assertEqual(tree2.children[0].children[1].obj, articles[8])
self.assertEqual(tree2.children[1].obj, articles[9])
# Are the parent properties set correctly?
self.assertEqual(tree1.parent, None)
self.assertEqual(tree1.children[0].parent.obj, articles[0])
self.assertEqual(tree1.children[0].children[0].parent.obj, articles[1])
self.assertEqual(tree1.children[0].children[1].parent.obj, articles[1])
self.assertEqual(tree1.children[1].parent.obj, articles[0])
self.assertEqual(tree2.parent, None)
self.assertEqual(tree2.children[0].parent.obj, articles[5])
self.assertEqual(tree2.children[0].children[0].parent.obj, articles[6])
self.assertEqual(tree2.children[0].children[1].parent.obj, articles[6])
self.assertEqual(tree2.children[1].parent.obj, articles[5])
def test_get_ids(self):
tree = ArticleTree(
Article(id=3), [
ArticleTree(Article(id=5), []), ArticleTree(Article(id=6), [
ArticleTree(Article(id=7), [])
])
]
)
self.assertEqual({3, 5, 6, 7}, set(tree.get_ids()))
def test_get_tree(self):
article1 = amcattest.create_test_article()
self.assertEqual(article1.get_tree(), ArticleTree(article1, []))
# Equals does not compare nested
article2 = amcattest.create_test_article(parent=article1)
self.assertEqual(
article1.get_tree(),
ArticleTree(article1, [ArticleTree(article2, [])])
)
# Test default include_parent = True
self.assertEqual(
article2.get_tree(),
ArticleTree(article1, [ArticleTree(article2, [])])
)
# Test include_parents = False
self.assertEqual(
article2.get_tree(include_parents=False),
ArticleTree(article2, [])
)