Added string function tests

git-svn-id: https://asterixdb.googlecode.com/svn/branches/asterix_stabilization@636 eaa15691-b419-025a-1212-ee371bd00084
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/toLowerCase04.aql b/asterix-app/src/test/resources/runtimets/queries/string/toLowerCase04.aql
new file mode 100644
index 0000000..3d99aab
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/toLowerCase04.aql
@@ -0,0 +1,12 @@
+/*
+ * Test case Name : toLowerCas04.aql
+ * Description    : Test lowercase(string) function 
+ *                : Convert all upper case english alphabets A-Z to lower case a-z
+ * Success        : Yes
+ * Date           : 19th April 2012
+ */
+
+write output to nc1:"rttest/string_toLowerCase04.adm";
+
+for $a in[lowercase(codepoint-to-string([0065,0066,0067,0068,0069,0070,0071,0072,0073,0074,0075,0076,0077,0078,0079,0080,0081,0082,0083,0084,0085,0086,0087,0088,0089,0090])),lowercase(string-concat(["ABCDEFGHIJKLMNOP","QRSTUVWXYZ"]))]
+return $a