This once again does NOT compile. I've done work on macros; they don't work yet..

unit-tests/eval-real.sh

@@ -0,0 +1,21 @@
+#!/bin/bash
+
+# for this test, trailing zeros can be ignored
+expected='5.05'
+actual=`echo "(eval 5.05)" |\
+  target/psse 2>/dev/null |\
+  sed 's/0*$//' |\
+  tail -1`
+
+# one part in a million is close enough...
+outcome=`echo "sqrt((${expected} - ${actual})^2) < 0.0000001" | bc`
+
+if [ "${outcome}" = "1" ]
+then
+    echo "OK"
+else
+    echo "Fail: expected '${expected}', got '${actual}'"
+    exit 1
+fi
+
+