Github user tarekauel commented on a diff in the pull request:
https://github.com/apache/spark/pull/6981#discussion_r34870733
--- Diff:
sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/expressions/DateFunctionsSuite.scala
---
@@ -0,0 +1,259 @@
+/*
+ * 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.catalyst.expressions
+
+import java.sql.{Timestamp, Date}
+import java.text.SimpleDateFormat
+import java.util.{TimeZone, Calendar}
+
+import org.apache.spark.SparkFunSuite
+import org.apache.spark.sql.types.{StringType, TimestampType, DateType}
+
+class DateFunctionsSuite extends SparkFunSuite with ExpressionEvalHelper {
+
+ val oldDefault = TimeZone.getDefault
+
+ val sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss")
+ val sdfDate = new SimpleDateFormat("yyyy-MM-dd")
+ val d = new Date(sdf.parse("2015-04-08 13:10:15").getTime)
+ val ts = new Timestamp(sdf.parse("2013-11-08 13:10:15").getTime)
+
+ test("Day in Year") {
+ val sdfDay = new SimpleDateFormat("D")
+ (2002 to 2004).foreach { y =>
+ (0 to 11).foreach { m =>
+ (0 to 5).foreach { i =>
--- End diff --
28, 29, 30, 31, 1.1. It checks until the 1st or 2nd of the next month,
doesn't it?
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