When I was working on test BE I was having trouble figuring out why the test was not parsing correctly. It was trying to parse the padding instead of stripping it. I created some basic tests to figure out what was going on and it appears that padding is not correctly stripped when the type is xs:decimal.

decimalPadding01 - xs:decimal using a padChar and a textNumberPattern
decimalPadding02 - same setup as decimalPadding01 but padding is turned off. This demonstrates that the textNumberPattern is acceptable for xs:decimal
decimalPadding03 - same setup as decimalPadding01 but the type is xs:int. Demonstrates that this textNumberPattern & pad character combo works with other types
decimalPadding04 - xs:decimal using a padChar and no textNumberPattern. Demonstrates that the pattern isn't hindering the parse.
decimalPadding05 - uses padding only within textNumberPattern, no external pad Char.

The only tests that are failing are the ones that use a padChar with xs:decimal.

Tests are in the following files:
daffodil-test/src/test/resources/edu/illinois/ncsa/daffodil/section13/text_number_props/TextNumberProps.tdml
daffodil-test/src/test/scala-debug/edu/illinois/ncsa/daffodil/section13/text_number_props/TestTextNumberPropsDebug.scala
daffodil-test/src/test/scala/edu/illinois/ncsa/daffodil/section13/text_number_props/TestTextNumberProps.scala