move the testData into beforeAll()

Author: chenghao-intel

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

@@ -17,7 +17,7 @@
 
 package org.apache.spark.sql.hive
 
-import org.apache.spark.sql.QueryTest
+import org.apache.spark.sql.{DataFrame, QueryTest}
 import org.apache.spark.sql.functions._
 import org.apache.spark.sql.hive.test.TestHive
 import org.apache.spark.sql.hive.test.TestHive._
@@ -30,12 +30,12 @@ case class TestData2Int(a: Int, b: Int)
 // `hive` package is optional in compiling, however, `SQLContext.sql` doesn't
 // support the `cube` or `rollup` yet.
 class HiveDataFrameAnalyticsSuite extends QueryTest with BeforeAndAfterAll {
-  val testData =
-    TestHive.sparkContext.parallelize(
-      TestData2Int(1, 2) ::
-        TestData2Int(2, 4) :: Nil).toDF()
+  private var testData: DataFrame = _
 
   override def beforeAll() {
+    testData = sparkContext.parallelize(
+        TestData2Int(1, 2) ::
+          TestData2Int(2, 4) :: Nil).toDF()
     TestHive.registerDataFrameAsTable(testData, "mytable")
   }