def test_star(self):
root = tree.build_tree(STAR)
self.assertEquals(root.name, 'Sort')
hash_agg = root.children[0]
self.assertEquals(len(root.children), 1)
self.assertEquals(hash_agg.name, 'HashAggregate')
self.assertEquals([x.name for x in hash_agg.children], ['Nested Loop'])
parent = hash_agg.children[0]
for names in [ ['Hash Join', 'Index Scan'], ['Hash Join', 'Hash'],['Append', 'Hash'], ['Seq Scan', 'Seq Scan', 'Seq Scan', 'Seq Scan', 'Seq Scan', ]]:
self.assertEquals([x.name for x in parent.children], names)
parent = parent.children[0]
nest_loop = hash_agg.children[0]
def test_basic(self):
root = tree.build_tree(BASIC)
self.assertEquals(root.name, "Result")
