Github user jerryshao commented on a diff in the pull request:
https://github.com/apache/spark/pull/20688#discussion_r172730858
--- Diff:
sql/core/src/test/scala/org/apache/spark/sql/execution/streaming/sources/RateSourceSuite.scala
---
@@ -0,0 +1,344 @@
+/*
+ * 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.execution.streaming.sources
+
+import java.nio.file.Files
+import java.util.Optional
+import java.util.concurrent.TimeUnit
+
+import scala.collection.JavaConverters._
+import scala.collection.mutable.ArrayBuffer
+
+import org.apache.spark.sql.{AnalysisException, Row, SparkSession}
+import org.apache.spark.sql.catalyst.errors.TreeNodeException
+import org.apache.spark.sql.execution.datasources.DataSource
+import org.apache.spark.sql.execution.streaming._
+import org.apache.spark.sql.execution.streaming.continuous._
+import org.apache.spark.sql.functions._
+import org.apache.spark.sql.sources.v2.{ContinuousReadSupport,
DataSourceOptions, MicroBatchReadSupport}
+import org.apache.spark.sql.sources.v2.reader.streaming.Offset
+import org.apache.spark.sql.streaming.StreamTest
+import org.apache.spark.util.ManualClock
+
+class RateSourceSuite extends StreamTest {
--- End diff --
Hi @tdas , I think I used "git mv", the thing is that when the diff is
larger then x%, it will treat as "git rm" and "git add"
(https://makandracards.com/makandra/30957-git-how-to-get-a-useful-diff-when-renaming-files).
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