[SPARK-6330] [SQL] Add a test case for SPARK-6330

When getting file statuses, create file system from each path instead of a single one from hadoop configuration.

Author: Pei-Lun Lee <pllee@appier.com>

Closes #5039 from ypcat/spark-6351 and squashes the following commits:

a19a3fe [Pei-Lun Lee] [SPARK-6330] [SQL] fix test
506f5a0 [Pei-Lun Lee] [SPARK-6351] [SQL] fix test
fa2290e [Pei-Lun Lee] [SPARK-6330] [SQL] Rename test case and add comment
606c967 [Pei-Lun Lee] Merge branch 'master' of https://github.com/apache/spark into spark-6351
896e80a [Pei-Lun Lee] [SPARK-6351] [SQL] Add test case
2ae0916 [Pei-Lun Lee] [SPARK-6351] [SQL] ParquetRelation2 supporting multiple file systems

sql/core/src/test/scala/org/apache/spark/sql/parquet/ParquetIOSuite.scala

@@ -329,6 +329,7 @@ class ParquetIOSuiteBase extends QueryTest with ParquetTest {
       checkAnswer(parquetFile(file), (data ++ newData).map(Row.fromTuple))
     }
   }
+
 }
 
 class ParquetDataSourceOnIOSuite extends ParquetIOSuiteBase with BeforeAndAfterAll {
@@ -341,6 +342,18 @@ class ParquetDataSourceOnIOSuite extends ParquetIOSuiteBase with BeforeAndAfterA
   override protected def afterAll(): Unit = {
     sqlContext.setConf(SQLConf.PARQUET_USE_DATA_SOURCE_API, originalConf.toString)
   }
+
+  test("SPARK-6330 regression test") {
+    // In 1.3.0, save to fs other than file: without configuring core-site.xml would get:
+    // IllegalArgumentException: Wrong FS: hdfs://..., expected: file:///
+    intercept[java.io.FileNotFoundException] {
+      sqlContext.parquetFile("file:///nonexistent")
+    }
+    val errorMessage = intercept[Throwable] {
+      sqlContext.parquetFile("hdfs://nonexistent")
+    }.toString
+    assert(errorMessage.contains("UnknownHostException"))
+  }
 }
 
 class ParquetDataSourceOffIOSuite extends ParquetIOSuiteBase with BeforeAndAfterAll {