Test case for the issue that was just clarified by the XSL WG:

A page-sequence with the only content an empty block produces an empty page.
http://lists.w3.org/Archives/Public/xsl-editors/2005OctDec/0008.html

git-svn-id: https://svn.apache.org/repos/asf/xmlgraphics/fop/trunk@326992 13f79535-47bb-0310-9956-ffa450edef68

test/layoutengine/testcases/page-production_empty_block_only.xml

@@ -0,0 +1,54 @@
+<?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 if FOP produces an empty page for a page-sequence with its only content an empty block.
+    </p>
+    <p>
+      <a href="http://lists.w3.org/Archives/Public/xsl-editors/2005OctDec/0008.html">Clarification by the XSL WG</a>.
+    </p>
+  </info>
+  <fo>
+    <fo:root xmlns:fo="http://www.w3.org/1999/XSL/Format">
+      <fo:layout-master-set>
+        <fo:simple-page-master master-name="normal" page-width="5in" page-height="1in">
+          <fo:region-body/>
+        </fo:simple-page-master>
+      </fo:layout-master-set>
+      <fo:page-sequence master-reference="normal">
+        <fo:flow flow-name="xsl-region-body">
+          <fo:block>page 1</fo:block>
+        </fo:flow>
+      </fo:page-sequence>
+      <fo:page-sequence master-reference="normal">
+        <fo:flow flow-name="xsl-region-body">
+          <fo:block/>
+        </fo:flow>
+      </fo:page-sequence>
+      <fo:page-sequence master-reference="normal">
+        <fo:flow flow-name="xsl-region-body">
+          <fo:block>page 3</fo:block>
+        </fo:flow>
+      </fo:page-sequence>
+    </fo:root>
+  </fo>
+  <checks>
+    <eval expected="3" xpath="count(//pageViewport)"/>
+  </checks>
+</testcase>