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/cmp.test b/scripts/test/cmp.test
index 8f6983c..df087cc 100755
--- a/scripts/test/cmp.test
+++ b/scripts/test/cmp.test
@@ -1,4 +1,4 @@
-#/bin/bash
+#!/bin/bash
[ -f testing.sh ] && . testing.sh
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" "" ""
diff --git a/scripts/test/wc.test b/scripts/test/wc.test
new file mode 100644
index 0000000..1b9a051
--- /dev/null
+++ b/scripts/test/wc.test
@@ -0,0 +1,22 @@
+#!/bin/bash
+
+[ -f testing.sh ] && . testing.sh
+
+#testing "name" "command" "result" "infile" "stdin"
+
+cat >file1 <<EOF
+some words .
+
+some
+lines
+EOF
+
+testing "wc" "wc >/dev/null && echo yes" "yes\n" "" ""
+testing "wc empty file" "wc" "0 0 0\n" "" ""
+testing "wc standard input" "wc" "1 3 5\n" "" "a b\nc"
+testing "wc -c" "wc -c file1" "26 file1\n" "" ""
+testing "wc -l" "wc -l file1" "4 file1\n" "" ""
+testing "wc -w" "wc -w file1" "5 file1\n" "" ""
+testing "wc format" "wc file1" "4 5 26 file1\n" "" ""
+testing "wc multiple files" "wc input - file1" "1 2 3 input\n0 2 3 -\n4 5 26 file1\n5 9 32 total\n" "a\nb" "a b"
+rm file1