add a small test program for the hash code to find where it leaks memory.

+#include <stdio.h>
+#include <stdlib.h>
+
+#include "class.h"
+#include "commons.h"
+#include "utils/memory.h"
+
+#include "hash.h"
+#include "utils/memory.h"
+
+
+/**
+ * =======================================================================
+ */
+int
+main(int argc, char * argv[])
+{
+    Hash      hash = new(Hash);
+    HashValue deleted;
+
+    hashAdd(hash, new(HashValue, CSTRA("foo"), CSTRA("bar")));
+    hashAdd(hash, new(HashValue, CSTRA("hjkfdd"), CSTRA("bar")));
+    hashAdd(hash, new(HashValue, CSTRA("j8frheff"), CSTRA("bar")));
+    hashAdd(hash, new(HashValue, CSTRA("f9e0g"), CSTRA("bar")));
+    hashAdd(hash, new(HashValue, CSTRA("gfrk9e0"), CSTRA("bar")));
+    hashAdd(hash, new(HashValue, CSTRA("fr09ie"), CSTRA("bar")));
+    hashAdd(hash, new(HashValue, CSTRA("fu8de9"), CSTRA("bar")));
+    hashAdd(hash, new(HashValue, CSTRA("rehw78"), CSTRA("bar")));
+    hashAdd(hash, new(HashValue, CSTRA("fcrne9"), CSTRA("bar")));
+    hashAdd(hash, new(HashValue, CSTRA("new8"), CSTRA("bar")));
+    hashAdd(hash, new(HashValue, CSTRA("fdhe78"), CSTRA("bar")));
+    hashAdd(hash, new(HashValue, CSTRA("dhew8"), CSTRA("bar")));
+    hashAdd(hash, new(HashValue, CSTRA("jfde9w8"), CSTRA("bar")));
+    hashAdd(hash, new(HashValue, CSTRA("dhe7w89"), CSTRA("bar")));
+    hashAdd(hash, new(HashValue, CSTRA("fduew89"), CSTRA("bar")));
+
+    deleted = hashDelete(hash, CSTRA("f9e0g"));
+    delete(deleted);
+    //deleted = hashDelete(hash, CSTRA("fcrne9"));
+    //delete(deleted);
+    //deleted = hashDelete(hash, CSTRA("fr09ie"));
+    //delete(deleted);
+    //deleted = hashDelete(hash, CSTRA("jfde9w8"));
+    //delete(deleted);
+    //deleted = hashDelete(hash, CSTRA("j8frheff"));
+    //delete(deleted);
+
+    delete(hash);
+    memCleanup();
+
+    return 0;
+}
+
+// vim: set et ts=4 sw=4: