Added basic testcase framework

src/util/util.h

@@ -0,0 +1,27 @@
+#pragma once
+
+#include <string>
+#include <vector>
+
+namespace clanguml {
+namespace util {
+
+std::string namespace_relative(
+    const std::vector<std::string> &namespaces, const std::string &n)
+{
+    for (const auto &ns : namespaces) {
+        if (n == ns)
+            return "";
+
+        if (n.find(ns) == 0) {
+            if (n.size() <= ns.size() + 2)
+                return "";
+
+            return n.substr(ns.size() + 2);
+        }
+    }
+
+    return n;
+}
+}
+}