[SPARK-14917][SQL] Enable some ORC compressions tests for writing

## What changes were proposed in this pull request?

https://issues.apache.org/jira/browse/SPARK-14917

As it is described in the JIRA, it seems Hive 1.2.1 which Spark uses now supports snappy and none.

So, this PR enables some tests for writing ORC files with compression codes, `SNAPPY` and `NONE`.

## How was this patch tested?

Unittests in `OrcQuerySuite` and `sbt scalastyle`.

Author: hyukjinkwon <gurwls223@gmail.com>

Closes #12699 from HyukjinKwon/SPARK-14917.

sql/hive/src/test/scala/org/apache/spark/sql/hive/orc/OrcQuerySuite.scala

@@ -20,8 +20,6 @@ package org.apache.spark.sql.hive.orc
 import java.io.File
 import java.nio.charset.StandardCharsets
 
-import org.apache.hadoop.hive.conf.HiveConf.ConfVars
-import org.apache.hadoop.hive.ql.io.orc.CompressionKind
 import org.scalatest.BeforeAndAfterAll
 
 import org.apache.spark.sql._
@@ -169,39 +167,45 @@ class OrcQuerySuite extends QueryTest with BeforeAndAfterAll with OrcTest {
     }
   }
 
-  // We only support zlib in Hive 0.12.0 now
-  test("Default compression options for writing to an ORC file") {
-    withOrcFile((1 to 100).map(i => (i, s"val_$i"))) { file =>
-      assertResult(CompressionKind.ZLIB) {
-        OrcFileOperator.getFileReader(file).get.getCompression
-      }
+  // Hive supports zlib, snappy and none for Hive 1.2.1.
+  test("Compression options for writing to an ORC file (SNAPPY, ZLIB and NONE)") {
+    withTempPath { file =>
+      sqlContext.range(0, 10).write
+        .option("orc.compress", "ZLIB")
+        .orc(file.getCanonicalPath)
+      val expectedCompressionKind =
+        OrcFileOperator.getFileReader(file.getCanonicalPath).get.getCompression
+      assert("ZLIB" === expectedCompressionKind.name())
     }
-  }
-
-  // Following codec is supported in hive-0.13.1, ignore it now
-  ignore("Other compression options for writing to an ORC file - 0.13.1 and above") {
-    val data = (1 to 100).map(i => (i, s"val_$i"))
-    val conf = sqlContext.sessionState.newHadoopConf()
 
-    conf.set(ConfVars.HIVE_ORC_DEFAULT_COMPRESS.varname, "SNAPPY")
-    withOrcFile(data) { file =>
-      assertResult(CompressionKind.SNAPPY) {
-        OrcFileOperator.getFileReader(file).get.getCompression
-      }
+    withTempPath { file =>
+      sqlContext.range(0, 10).write
+        .option("orc.compress", "SNAPPY")
+        .orc(file.getCanonicalPath)
+      val expectedCompressionKind =
+        OrcFileOperator.getFileReader(file.getCanonicalPath).get.getCompression
+      assert("SNAPPY" === expectedCompressionKind.name())
     }
 
-    conf.set(ConfVars.HIVE_ORC_DEFAULT_COMPRESS.varname, "NONE")
-    withOrcFile(data) { file =>
-      assertResult(CompressionKind.NONE) {
-        OrcFileOperator.getFileReader(file).get.getCompression
-      }
+    withTempPath { file =>
+      sqlContext.range(0, 10).write
+        .option("orc.compress", "NONE")
+        .orc(file.getCanonicalPath)
+      val expectedCompressionKind =
+        OrcFileOperator.getFileReader(file.getCanonicalPath).get.getCompression
+      assert("NONE" === expectedCompressionKind.name())
     }
+  }
 
-    conf.set(ConfVars.HIVE_ORC_DEFAULT_COMPRESS.varname, "LZO")
-    withOrcFile(data) { file =>
-      assertResult(CompressionKind.LZO) {
-        OrcFileOperator.getFileReader(file).get.getCompression
-      }
+  // Following codec is not supported in Hive 1.2.1, ignore it now
+  ignore("LZO compression options for writing to an ORC file not supported in Hive 1.2.1") {
+    withTempPath { file =>
+      sqlContext.range(0, 10).write
+        .option("orc.compress", "LZO")
+        .orc(file.getCanonicalPath)
+      val expectedCompressionKind =
+        OrcFileOperator.getFileReader(file.getCanonicalPath).get.getCompression
+      assert("LZO" === expectedCompressionKind.name())
     }
   }