1 files changed, 82 insertions, 0 deletions
diff --git a/sql/core/src/test/scala/org/apache/spark/sql/streaming/MemorySinkSuite.scala b/sql/core/src/test/scala/org/apache/spark/sql/streaming/MemorySinkSuite.scala
new file mode 100644
index 0000000000..1f28340545
--- /dev/null
+++ b/sql/core/src/test/scala/org/apache/spark/sql/streaming/MemorySinkSuite.scala
@@ -0,0 +1,82 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.spark.sql.streaming
+
+import org.apache.spark.sql.{AnalysisException, Row, StreamTest}
+import org.apache.spark.sql.execution.streaming._
+import org.apache.spark.sql.test.SharedSQLContext
+import org.apache.spark.util.Utils
+
+class MemorySinkSuite extends StreamTest with SharedSQLContext {
+  import testImplicits._
+
+  test("registering as a table") {
+    val input = MemoryStream[Int]
+    val query = input.toDF().write
+      .format("memory")
+      .queryName("memStream")
+      .startStream()
+    input.addData(1, 2, 3)
+    query.processAllAvailable()
+
+    checkDataset(
+      sqlContext.table("memStream").as[Int],
+      1, 2, 3)
+
+    input.addData(4, 5, 6)
+    query.processAllAvailable()
+    checkDataset(
+      sqlContext.table("memStream").as[Int],
+      1, 2, 3, 4, 5, 6)
+
+    query.stop()
+  }
+
+  test("error when no name is specified") {
+    val error = intercept[AnalysisException] {
+      val input = MemoryStream[Int]
+      val query = input.toDF().write
+          .format("memory")
+          .startStream()
+    }
+
+    assert(error.message contains "queryName must be specified")
+  }
+
+  test("error if attempting to resume specific checkpoint") {
+    val location = Utils.createTempDir(namePrefix = "steaming.checkpoint").getCanonicalPath
+
+    val input = MemoryStream[Int]
+    val query = input.toDF().write
+        .format("memory")
+        .queryName("memStream")
+        .option("checkpointLocation", location)
+        .startStream()
+    input.addData(1, 2, 3)
+    query.processAllAvailable()
+    query.stop()
+
+    intercept[AnalysisException] {
+      input.toDF().write
+        .format("memory")
+        .queryName("memStream")
+        .option("checkpointLocation", location)
+        .startStream()
+    }
+  }
+}