Split up test instead of iterating over an array with test values

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/email/trunk@1507607 13f79535-47bb-0310-9956-ffa450edef68
Member can be private

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/email/trunk@1507608 13f79535-47bb-0310-9956-ffa450edef68
Java is strongly typed - no need to document the type in variable name

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/email/trunk@1507609 13f79535-47bb-0310-9956-ffa450edef68