[SPARK-32458][SQL][TESTS] Fix incorrectly sized row value reads

### What changes were proposed in this pull request?
Updates to tests to use correctly sized `getInt` or `getLong` calls.

### Why are the changes needed?
The reads were incorrectly sized (i.e. `putLong` paired with `getInt` and `putInt` paired with `getLong`). This causes test failures on big-endian systems.

### Does this PR introduce _any_ user-facing change?
No.

### How was this patch tested?
Tests were run on a big-endian system (s390x). This change is unlikely to have any practical effect on little-endian systems.

Closes #29258 from mundaym/fix-row.

Authored-by: Michael Munday <[email protected]>
Signed-off-by: Dongjoon Hyun <[email protected]>

Author: mundaym

sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/encoders/RowEncoderSuite.scala

@@ -336,7 +336,7 @@ class RowEncoderSuite extends CodegenInterpretedPlanTest {
       val encoder = RowEncoder(schema).resolveAndBind()
       val localDate = java.time.LocalDate.parse("2019-02-27")
       val row = toRow(encoder, Row(localDate))
-      assert(row.getLong(0) === DateTimeUtils.localDateToDays(localDate))
+      assert(row.getInt(0) === DateTimeUtils.localDateToDays(localDate))
       val readback = fromRow(encoder, row)
       assert(readback.get(0).equals(localDate))
     }

sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/util/UnsafeMapSuite.scala

@@ -48,17 +48,17 @@ class UnsafeMapSuite extends SparkFunSuite {
     val ser = new JavaSerializer(new SparkConf).newInstance()
     val mapDataSer = ser.deserialize[UnsafeMapData](ser.serialize(unsafeMapData))
     assert(mapDataSer.numElements() == 1)
-    assert(mapDataSer.keyArray().getInt(0) == 19285)
-    assert(mapDataSer.valueArray().getInt(0) == 19286)
+    assert(mapDataSer.keyArray().getLong(0) == 19285)
+    assert(mapDataSer.valueArray().getLong(0) == 19286)
     assert(mapDataSer.getBaseObject.asInstanceOf[Array[Byte]].length == 1024)
   }
 
   test("unsafe Kryo serialization") {
     val ser = new KryoSerializer(new SparkConf).newInstance()
     val mapDataSer = ser.deserialize[UnsafeMapData](ser.serialize(unsafeMapData))
     assert(mapDataSer.numElements() == 1)
-    assert(mapDataSer.keyArray().getInt(0) == 19285)
-    assert(mapDataSer.valueArray().getInt(0) == 19286)
+    assert(mapDataSer.keyArray().getLong(0) == 19285)
+    assert(mapDataSer.valueArray().getLong(0) == 19286)
     assert(mapDataSer.getBaseObject.asInstanceOf[Array[Byte]].length == 1024)
   }
 }