#658 Add support for case insensitive offset types.

Author: yruslan

pramen/api/src/main/scala/za/co/absa/pramen/api/offset/OffsetType.scala

@@ -57,7 +57,7 @@ object OffsetType {
     override def getSparkCol(c: Column): Column = c
   }
 
-  def fromString(dataType: String): OffsetType = dataType match {
+  def fromString(dataType: String): OffsetType = dataType.trim.toLowerCase match {
     case DATETIME_TYPE_STR => DateTimeType
     case INTEGRAL_TYPE_STR => IntegralType
     case INTEGRAL_TYPE_ALT_STR => IntegralType

pramen/api/src/test/scala/za/co/absa/pramen/api/offset/OffsetTypeSuite.scala

@@ -47,6 +47,16 @@ class OffsetTypeSuite extends AnyWordSpec {
       assert(offsetValue.dataTypeString == "datetime")
     }
 
+    "be able to create a DateTimeType instance from a string with different case" in {
+      val offsetValue = OffsetType.fromString("dateTime")
+      assert(offsetValue.dataTypeString == "datetime")
+    }
+
+    "be able to create a DateTimeType instance from a string with different case and spaces" in {
+      val offsetValue = OffsetType.fromString(" DATETIME ")
+      assert(offsetValue.dataTypeString == "datetime")
+    }
+
     "be able to create a IntegralType instance from a string" in {
       val offsetValue = OffsetType.fromString("integral")
       assert(offsetValue.dataTypeString == "integral")