Test case showing a problem with empty lines generated by forced linefeeds.

git-svn-id: https://svn.apache.org/repos/asf/xmlgraphics/fop/trunk@198363 13f79535-47bb-0310-9956-ffa450edef68

test/layoutengine/testcases/line-layout1.xml

@@ -0,0 +1,68 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  Copyright 2005 The Apache Software Foundation
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+-->
+<!-- $Id$ -->
+<testcase>
+  <info>
+    <p>
+      This test checks normal line layout.
+    </p>
+  </info>
+  <fo>
+    <fo:root xmlns:fo="http://www.w3.org/1999/XSL/Format">
+      <fo:layout-master-set>
+        <fo:simple-page-master master-name="simple" page-height="5in" page-width="5in">
+          <fo:region-body/>
+        </fo:simple-page-master>
+      </fo:layout-master-set>
+      <fo:page-sequence master-reference="simple">
+        <fo:flow flow-name="xsl-region-body">
+          <fo:block background-color="orange">word1 word2 word3</fo:block>
+          <fo:block background-color="yellow">word1
+          word2           word3
+</fo:block>
+          <fo:block background-color="orange"
+            white-space-collapse="false" white-space-treatment="preserve" linefeed-treatment="preserve" wrap-option="no-wrap">line1
+line2
+line3</fo:block>
+          <fo:block background-color="yellow"
+            white-space-collapse="false" white-space-treatment="preserve" linefeed-treatment="preserve" wrap-option="no-wrap">
+line1
+line2
+
+line3
+</fo:block>
+        </fo:flow>
+      </fo:page-sequence>
+    </fo:root>
+  </fo>
+  <checks>
+    <eval expected="word1 word2 word3" xpath="//flow/block[1]/lineArea[1]/text"/>
+    <eval expected="word1 word2 word3" xpath="//flow/block[2]/lineArea[1]/text"/>
+    
+    <eval expected="line1" xpath="//flow/block[3]/lineArea[1]/text"/>
+    <eval expected="line2" xpath="//flow/block[3]/lineArea[2]/text"/>
+    <eval expected="line3" xpath="//flow/block[3]/lineArea[3]/text"/>
+    
+    <true xpath="boolean(//flow/block[4]/lineArea[1])"/>
+    <true xpath="not(boolean(//flow/block[4]/lineArea[1]/text))"/>
+    <eval expected="line1" xpath="//flow/block[4]/lineArea[2]/text"/>
+    <eval expected="line2" xpath="//flow/block[4]/lineArea[3]/text"/>
+    <true xpath="boolean(//flow/block[4]/lineArea[4])"/>
+    <true xpath="not(boolean(//flow/block[4]/lineArea[4]/text))"/>
+    <eval expected="line3" xpath="//flow/block[4]/lineArea[5]/text"/>
+  </checks>
+</testcase>