Restructure tests and adjust display format, to better understand what each test is testing.

tests/Integrity_-_Basic.sh

@@ -0,0 +1,15 @@
+#!/bin/sh
+#
+# Check that data can be just passed straight through.
+
+# Dummy assignment for "shellcheck".
+testSubject="${testSubject:-false}"
+
+inputString="TESTING"
+outputString=$(printf "${inputString}" | "${testSubject}" 2>/dev/null) || { echo "unexpected failure code"; exit 1; }
+
+test "${inputString}" = "${outputString}" && exit 0
+echo "output did not match input"
+exit 1
+
+# EOF