[libxslt] Test for bug #680920

[Daniel Veillard <veillard src gnome org>]

commit 2b7e16f7711dbd860a44e4fa40e48d00812f7333
Author: Nick Wellnhofer <wellnhofer aevum de>
Date:   Tue Jul 31 23:32:05 2012 +0200

    Test for bug #680920
    
    Add test cases for the EXSLT func bug

 tests/docs/bug-178.xml    |    1 +
 tests/general/Makefile.am |    1 +
 tests/general/bug-178.out |    2 ++
 tests/general/bug-178.xsl |   18 ++++++++++++++++++
 4 files changed, 22 insertions(+), 0 deletions(-)
---
diff --git a/tests/docs/bug-178.xml b/tests/docs/bug-178.xml
new file mode 100644
index 0000000..69d62f2
--- /dev/null
+++ b/tests/docs/bug-178.xml
@@ -0,0 +1 @@
+<doc/>
diff --git a/tests/general/Makefile.am b/tests/general/Makefile.am
index f7fdea9..523183b 100644
--- a/tests/general/Makefile.am
+++ b/tests/general/Makefile.am
@@ -181,6 +181,7 @@ EXTRA_DIST = \
     bug-171.out bug-171.xsl \
     bug-172.out bug-172.xsl \
     bug-173.out bug-173.xsl \
+    bug-178.out bug-178.xsl \
     character.out character.xsl \
     character2.out character2.xsl \
     itemschoose.out itemschoose.xsl \
diff --git a/tests/general/bug-178.out b/tests/general/bug-178.out
new file mode 100644
index 0000000..e829790
--- /dev/null
+++ b/tests/general/bug-178.out
@@ -0,0 +1,2 @@
+<?xml version="1.0"?>
+<result/>
diff --git a/tests/general/bug-178.xsl b/tests/general/bug-178.xsl
new file mode 100644
index 0000000..aab57a4
--- /dev/null
+++ b/tests/general/bug-178.xsl
@@ -0,0 +1,18 @@
+<xsl:stylesheet
+	xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
+	xmlns:func = "http://exslt.org/functions";
+	version="1.0" extension-element-prefixes="func">
+
+<func:function name="func:uaf">
+	<xsl:text/>
+	<func:result/>
+</func:function>
+
+<xsl:template match="/">
+        <result>
+	        <xsl:value-of select="func:uaf()"/>
+        </result>
+</xsl:template>
+
+</xsl:stylesheet>
+