Implemented black-box test cases

* the directories below "./test" contain test cases
** "transformation.xsl" and the expected result as "reference.xml"
** tests are performed by "check.sh"
*** returns diff on error
* this system enables simple verification of external function results
** way simpler than C++ unit tests would be in this scenario
* expanded cmake instructions to automatically execute the test cases
* old example transformation was removed

2 files changed, 35 insertions, 0 deletions

diff --git a/test/read_file/reference.xml b/test/read_file/reference.xml
new file mode 100644
index 0000000..7cbcc95
--- /dev/null
+++ b/test/read_file/reference.xml
@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<test_case>
+<function_read_file>&lt;?xml version="1.0"?&gt;
+&lt;tester&gt;
+	&lt;eintrag&gt;Hello 1&lt;/eintrag&gt;
+	&lt;eintrag&gt;Hello 2&lt;/eintrag&gt;
+	&lt;eintrag&gt;Hello 3&lt;/eintrag&gt;
+	&lt;eintrag&gt;Hello 4&lt;/eintrag&gt;
+&lt;/tester&gt;
+</function_read_file>
+</test_case>
diff --git a/test/read_file/transformation.xsl b/test/read_file/transformation.xsl
new file mode 100644
index 0000000..96b8976
--- /dev/null
+++ b/test/read_file/transformation.xsl
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<xsl:stylesheet
+	version="1.0"
+	xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
+	xmlns:InputXSLT="function.inputxslt.application"
+	exclude-result-prefixes="InputXSLT"
+>
+
+<xsl:output
+	method="xml"
+	omit-xml-declaration="no"
+	encoding="UTF-8"
+	indent="yes"
+/>
+
+<xsl:template match="/">
+<test_case>
+	<function_read_file>
+		<xsl:value-of select="InputXSLT:read-file('../common/test.txt')"/>
+	</function_read_file>
+</test_case>
+</xsl:template>
+
+</xsl:stylesheet>