fop/test/layoutengine/standard-testcases/inline_letter-spacing_3.xml

<?xml version="1.0" encoding="UTF-8"?>
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<!-- $Id$ -->
<testcase>
  <info>
    <p>
      This test checks that a non-breaking space at the end of an
      fo:inline with padding, followed by another fo:inline, while
      text-align is justify, does not cause a NullPointerException due
      to InlineStackingLayoutManager.addALetterSpaceTo().
    </p>
    <p>http://issues.apache.org/bugzilla/show_bug.cgi?id=39571</p>
  </info>
  <fo>
    <fo:root
      xmlns:fo="http://www.w3.org/1999/XSL/Format">
      <fo:layout-master-set>
        <fo:simple-page-master master-name="small"
          page-height="5cm" page-width="15cm"
          margin-top="2cm" margin-bottom="2cm"
          margin-left="2cm" margin-right="2cm">
          <fo:region-body/>
        </fo:simple-page-master>
      </fo:layout-master-set>

      <fo:page-sequence master-reference="small">
        <fo:flow flow-name="xsl-region-body" text-align="justify">
          <fo:block language="en" country="US">
            <fo:inline><fo:inline padding-end="1em">non-breaking&#xA0;</fo:inline><fo:inline>space</fo:inline></fo:inline>
          </fo:block>
        </fo:flow>
      </fo:page-sequence>
    </fo:root>
  </fo>
  <checks>
    <eval expected="117384"
xpath="//flow/block[1]/lineArea[1]/inlineparent[1]/@ipd" desc="IPD of
containing inline area"/>
    <eval expected="73368"
xpath="//flow/block[1]/lineArea[1]/inlineparent[1]/inlineparent[1]/@ipd"
desc="IPD of first contained inline area"/>
    <eval expected="73368"
xpath="//flow/block[1]/lineArea[1]/inlineparent[1]/inlineparent[1]/text/@ipd"
desc="IPD of corresponding text area"/>
  </checks>
</testcase>