Worked on ZString, MString and JString

testing/zstring_test.cpp

@@ -38,5 +38,10 @@ int main(int argc, char **argv) {
    test4.getTokenExclude("(");
    std::cout << "container: " << test4.getContainer() << std::endl;
    std::cout << "rest: " << test4.unparsed() << std::endl;
-      
+
+   // Test find();
+   coreutils::ZString testA("this is a test string for MX 250xyzabc");
+   std::cout << "find MX: " << testA.find("MX") << std::endl;
+   std::cout << "unparsed: " << testA.unparsed() << std::endl;
+
 }