attached are some simple tests for dirname and wc and a fix for a small typo in another test script.
diff --git a/scripts/test/dirname.test b/scripts/test/dirname.test
new file mode 100644
index 0000000..9afa450
--- /dev/null
+++ b/scripts/test/dirname.test
@@ -0,0 +1,10 @@
+#!/bin/bash
+
+[ -f testing.sh ] && . testing.sh
+
+#testing "name" "command" "result" "infile" "stdin"
+
+testing "dirname /-only" "dirname ///////" "/\n" "" ""
+testing "dirname trailing /" "dirname a//////" ".\n" "" ""
+testing "dirname combined" "dirname /////a///b///c///d/////" "/////a///b///c\n" "" ""
+testing "dirname /a/" "dirname /////a///" "/\n" "" ""