def testExecuteCacheTable(self):
df = self.odps_df[self.odps_df.name == 'name1']
result = df.execute().values
self.assertEqual(len(result), 2)
self.assertTrue(context.is_cached(df))
dag = self.engine.compile(df)
calls = dag.topological_sort()
self.assertEqual(len(calls), 1)
self.assertTrue(is_source_collection(calls[0].expr))
df2 = df[:5]
result = df2.execute()
self.assertEqual(len(result), 2)
def testHandleCache(self):
df = self.pd_df['name', self.pd_df.id + 1]
df.execute()
self.assertTrue(context.is_cached(df))
df2 = df[df.id < 10]
dag = self.engine.compile(df2)
self.assertEqual(len(dag.nodes()), 1)
self.assertTrue(is_source_collection(dag.nodes()[0].expr.input))
df3 = self.pd_df[self.pd_df.id < 10].count()
i = df3.execute()
self.assertTrue(context.is_cached(df3))
df4 = df3 + 1
dag = self.engine.compile(df4)
self.assertEqual(len(dag.nodes()), 1)
self.assertIsNotNone(dag.nodes()[0].expr._fields[0].lhs.value)
self.assertEqual(df4.execute(), i + 1)
