[SPARK-18922][TESTS] Fix new test failures on Windows due to path and resource not closed

core/src/test/scala/org/apache/spark/metrics/InputOutputMetricsSuite.scala

@@ -259,7 +259,7 @@ class InputOutputMetricsSuite extends SparkFunSuite with SharedSparkContext
 
   test("output metrics on records written") {
     val file = new File(tmpDir, getClass.getSimpleName)
-    val filePath = "file://" + file.getAbsolutePath
+    val filePath = file.toURI.toURL.toString
 
     val records = runAndReturnRecordsWritten {
       sc.parallelize(1 to numRecords).saveAsTextFile(filePath)
@@ -269,7 +269,7 @@ class InputOutputMetricsSuite extends SparkFunSuite with SharedSparkContext
 
   test("output metrics on records written - new Hadoop API") {
     val file = new File(tmpDir, getClass.getSimpleName)
-    val filePath = "file://" + file.getAbsolutePath
+    val filePath = file.toURI.toURL.toString
 
     val records = runAndReturnRecordsWritten {
       sc.parallelize(1 to numRecords).map(key => (key.toString, key.toString))

external/kafka-0-10-sql/src/test/scala/org/apache/spark/sql/kafka010/KafkaRelationSuite.scala

@@ -24,6 +24,7 @@ import org.scalatest.BeforeAndAfter
 
 import org.apache.spark.sql.QueryTest
 import org.apache.spark.sql.test.SharedSQLContext
+import org.apache.spark.util.Utils
 
 class KafkaRelationSuite extends QueryTest with BeforeAndAfter with SharedSQLContext {
 
@@ -147,6 +148,9 @@ class KafkaRelationSuite extends QueryTest with BeforeAndAfter with SharedSQLCon
   }
 
   test("test late binding start offsets") {
+    // Kafka fails to remove the logs on Windows. See KAFKA-1194.
+    assume(!Utils.isWindows)
+
     var kafkaUtils: KafkaTestUtils = null
     try {
       /**

external/kafka-0-10-sql/src/test/scala/org/apache/spark/sql/kafka010/KafkaSourceSuite.scala

@@ -39,6 +39,7 @@ import org.apache.spark.sql.execution.streaming._
 import org.apache.spark.sql.functions.{count, window}
 import org.apache.spark.sql.streaming.{ProcessingTime, StreamTest}
 import org.apache.spark.sql.test.{SharedSQLContext, TestSparkSession}
+import org.apache.spark.util.Utils
 
 abstract class KafkaSourceTest extends StreamTest with SharedSQLContext {
 
@@ -161,11 +162,12 @@ class KafkaSourceSuite extends KafkaSourceTest {
       // Make sure Spark 2.1.0 will throw an exception when reading the new log
       intercept[java.lang.IllegalArgumentException] {
         // Simulate how Spark 2.1.0 reads the log
-        val in = new FileInputStream(metadataPath.getAbsolutePath + "/0")
-        val length = in.read()
-        val bytes = new Array[Byte](length)
-        in.read(bytes)
-        KafkaSourceOffset(SerializedOffset(new String(bytes, UTF_8)))
+        Utils.tryWithResource(new FileInputStream(metadataPath.getAbsolutePath + "/0")) { in =>
+          val length = in.read()
+          val bytes = new Array[Byte](length)
+          in.read(bytes)
+          KafkaSourceOffset(SerializedOffset(new String(bytes, UTF_8)))
+        }
       }
     }
   }
@@ -181,13 +183,13 @@ class KafkaSourceSuite extends KafkaSourceTest {
         "subscribe" -> topic
       )
 
-      val from = Paths.get(
-        getClass.getResource("/kafka-source-initial-offset-version-2.1.0.bin").getPath)
+      val from = new File(
+        getClass.getResource("/kafka-source-initial-offset-version-2.1.0.bin").toURI).toPath
       val to = Paths.get(s"${metadataPath.getAbsolutePath}/0")
       Files.copy(from, to)
 
-      val source = provider.createSource(spark.sqlContext, metadataPath.getAbsolutePath, None,
-        "", parameters)
+      val source = provider.createSource(
+        spark.sqlContext, metadataPath.toURI.toString, None, "", parameters)
       val deserializedOffset = source.getOffset.get
       val referenceOffset = KafkaSourceOffset((topic, 0, 0L), (topic, 1, 0L), (topic, 2, 0L))
       assert(referenceOffset == deserializedOffset)

sql/core/src/test/scala/org/apache/spark/sql/execution/command/DDLSuite.scala

@@ -1520,7 +1520,7 @@ class DDLSuite extends QueryTest with SharedSQLContext with BeforeAndAfterEach {
         val e = intercept[AnalysisException] { sql("CREATE TABLE tab1 USING json") }.getMessage
         assert(e.contains("Unable to infer schema for JSON. It must be specified manually"))
 
-        sql(s"CREATE TABLE tab2 using json location '${tempDir.getCanonicalPath}'")
+        sql(s"CREATE TABLE tab2 using json location '${tempDir.toURI}'")
         checkAnswer(spark.table("tab2"), Row("a", "b"))
       }
     }
@@ -1814,7 +1814,7 @@ class DDLSuite extends QueryTest with SharedSQLContext with BeforeAndAfterEach {
         val defaultTablePath = spark.sessionState.catalog
           .getTableMetadata(TableIdentifier("tbl")).storage.locationUri.get
 
-        sql(s"ALTER TABLE tbl SET LOCATION '${dir.getCanonicalPath}'")
+        sql(s"ALTER TABLE tbl SET LOCATION '${dir.toURI}'")
         spark.catalog.refreshTable("tbl")
         // SET LOCATION won't move data from previous table path to new table path.
         assert(spark.table("tbl").count() == 0)
@@ -1836,15 +1836,15 @@ class DDLSuite extends QueryTest with SharedSQLContext with BeforeAndAfterEach {
   test("insert data to a data source table which has a not existed location should succeed") {
     withTable("t") {
       withTempDir { dir =>
+        val path = dir.toURI.toString.stripSuffix("/")
         spark.sql(
           s"""
              |CREATE TABLE t(a string, b int)
              |USING parquet
-             |OPTIONS(path "$dir")
+             |OPTIONS(path "$path")
            """.stripMargin)
         val table = spark.sessionState.catalog.getTableMetadata(TableIdentifier("t"))
-        val expectedPath = dir.getAbsolutePath.stripSuffix("/")
-        assert(table.location.stripSuffix("/") == expectedPath)
+        assert(table.location == path)
 
         dir.delete
         val tableLocFile = new File(table.location.stripPrefix("file:"))
@@ -1859,8 +1859,8 @@ class DDLSuite extends QueryTest with SharedSQLContext with BeforeAndAfterEach {
         assert(tableLocFile.exists)
         checkAnswer(spark.table("t"), Row("c", 1) :: Nil)
 
-        val newDir = dir.getAbsolutePath.stripSuffix("/") + "/x"
-        val newDirFile = new File(newDir)
+        val newDirFile = new File(dir, "x")
+        val newDir = newDirFile.toURI.toString
         spark.sql(s"ALTER TABLE t SET LOCATION '$newDir'")
         spark.sessionState.catalog.refreshTable(TableIdentifier("t"))
 
@@ -1878,16 +1878,16 @@ class DDLSuite extends QueryTest with SharedSQLContext with BeforeAndAfterEach {
   test("insert into a data source table with no existed partition location should succeed") {
     withTable("t") {
       withTempDir { dir =>
+        val path = dir.toURI.toString.stripSuffix("/")
         spark.sql(
           s"""
              |CREATE TABLE t(a int, b int, c int, d int)
              |USING parquet
              |PARTITIONED BY(a, b)
-             |LOCATION "$dir"
+             |LOCATION "$path"
            """.stripMargin)
         val table = spark.sessionState.catalog.getTableMetadata(TableIdentifier("t"))
-        val expectedPath = dir.getAbsolutePath.stripSuffix("/")
-        assert(table.location.stripSuffix("/") == expectedPath)
+        assert(table.location == path)
 
         spark.sql("INSERT INTO TABLE t PARTITION(a=1, b=2) SELECT 3, 4")
         checkAnswer(spark.table("t"), Row(3, 4, 1, 2) :: Nil)
@@ -1906,25 +1906,26 @@ class DDLSuite extends QueryTest with SharedSQLContext with BeforeAndAfterEach {
   test("read data from a data source table which has a not existed location should succeed") {
     withTable("t") {
       withTempDir { dir =>
+        val path = dir.toURI.toString.stripSuffix("/")
         spark.sql(
           s"""
              |CREATE TABLE t(a string, b int)
              |USING parquet
-             |OPTIONS(path "$dir")
+             |OPTIONS(path "$path")
            """.stripMargin)
         val table = spark.sessionState.catalog.getTableMetadata(TableIdentifier("t"))
-        val expectedPath = dir.getAbsolutePath.stripSuffix("/")
-        assert(table.location.stripSuffix("/") == expectedPath)
+        assert(table.location == path)
 
         dir.delete()
         checkAnswer(spark.table("t"), Nil)
 
-        val newDir = dir.getAbsolutePath.stripSuffix("/") + "/x"
+        val newDirFile = new File(dir, "x")
+        val newDir = newDirFile.toURI.toString
         spark.sql(s"ALTER TABLE t SET LOCATION '$newDir'")
 
         val table1 = spark.sessionState.catalog.getTableMetadata(TableIdentifier("t"))
         assert(table1.location == newDir)
-        assert(!new File(newDir).exists())
+        assert(!newDirFile.exists())
         checkAnswer(spark.table("t"), Nil)
       }
     }
@@ -1938,7 +1939,7 @@ class DDLSuite extends QueryTest with SharedSQLContext with BeforeAndAfterEach {
              |CREATE TABLE t(a int, b int, c int, d int)
              |USING parquet
              |PARTITIONED BY(a, b)
-             |LOCATION "$dir"
+             |LOCATION "${dir.toURI}"
            """.stripMargin)
         spark.sql("INSERT INTO TABLE t PARTITION(a=1, b=2) SELECT 3, 4")
         checkAnswer(spark.table("t"), Row(3, 4, 1, 2) :: Nil)

sql/hive/src/test/scala/org/apache/spark/sql/hive/execution/HiveDDLSuite.scala

@@ -1570,7 +1570,7 @@ class HiveDDLSuite
         val dataPath = new File(new File(path, "d=1"), "b=1").getCanonicalPath
         Seq(1 -> 1).toDF("a", "c").write.save(dataPath)
 
-        sql(s"CREATE TABLE t3 USING parquet LOCATION '${path.getCanonicalPath}'")
+        sql(s"CREATE TABLE t3 USING parquet LOCATION '${path.toURI}'")
         assert(getTableColumns("t3") == Seq("a", "c", "d", "b"))
       }