add a test case

Author: adrian-wang

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

@@ -135,6 +135,21 @@ class ParquetIOSuiteBase extends QueryTest with ParquetTest {
     }
   }
 
+  test("date type") {
+    def makeDateRDD(): DataFrame =
+      sparkContext
+        .parallelize(0 to 1000)
+        .map(i => Tuple1(DateUtils.toJavaDate(i)))
+        .toDF()
+        .select($"_1")
+
+    withTempPath { dir =>
+      val data = makeDateRDD()
+      data.saveAsParquetFile(dir.getCanonicalPath)
+      checkAnswer(parquetFile(dir.getCanonicalPath), data.collect().toSeq)
+    }
+  }
+
   test("map") {
     val data = (1 to 4).map(i => Tuple1(Map(i -> s"val_$i")))
     checkParquetFile(data)