The assumption that we can test "en_US" and expect
it to behave a certain way is flawed in that most
of the formatting settings are independently
configurable by the end user.
Make the test more robust while attempting to preserve
as much testing as possible:
Make the decimalPoint/groupSeparator tests check for
a range of possible values. Check that they are not
the same.
Remove the date formatting tests and the firstDayOfWeek()
== Sunday test.
Make the time zone test accept a non zero extended
time zone. ("GMT+2" in addition to "GMT+02".)
Change-Id: Ie1f89793eb785f526c5f6fafbb6726ef8c6cb016
Reviewed-by: Morten Johan Sørvig <morten.sorvig@digia.com>