Update CachedTableSuite.scala

Author: seayi

sql/hive/src/test/scala/org/apache/spark/sql/hive/CachedTableSuite.scala

@@ -64,6 +64,12 @@ class CachedTableSuite extends QueryTest {
       sql("SELECT * FROM src"),
       preCacheResults)
 
+    assertCached(sql("SELECT * FROM src s"))
+
+    checkAnswer(
+      sql("SELECT * FROM src s"),
+      preCacheResults)
+    
     uncacheTable("src")
     assertCached(sql("SELECT * FROM src"), 0)
   }