Index: openacs-4/packages/acs-core-docs/www/xml/developers-guide/tutorial-debug.xml
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/acs-core-docs/www/xml/developers-guide/tutorial-debug.xml,v
diff -u -r1.12 -r1.12.12.1
--- openacs-4/packages/acs-core-docs/www/xml/developers-guide/tutorial-debug.xml	17 Jul 2006 05:38:37 -0000	1.12
+++ openacs-4/packages/acs-core-docs/www/xml/developers-guide/tutorial-debug.xml	13 Oct 2013 10:33:55 -0000	1.12.12.1
@@ -146,7 +146,7 @@
     <programlisting>
       set name [ad_generate_random_string]
       set new_id [mfp::note::add -title $name]
-      aa_true "Note add succeeded" [exists_and_not_null new_id]</programlisting>
+      aa_true "Note add succeeded" ([info exists new_id] && $new_id ne "")</programlisting>
     <para>To test our simple case, we must load the test file into the system (just as with the /tcl file in the basic tutorial, since the file didn't exist when the system started, the system doesn't know about it.)  To make this file take effect, go to the <ulink url="/acs-admin/apm">APM</ulink> and choose "Reload changed" for "MyFirstPackage".  Since we'll be changing it frequently, select "watch this file" on the next page.  This will cause the system to check this file every time any page is requested, which is bad for production systems but convenient for developing.  We can also add some aa_register_case flags to make it easier to run the test.  The <computeroutput>-procs</computeroutput> flag, which indicates which procs are tested by this test case, makes it easier to find procs in your package that aren't tested at all.  The <computeroutput>-cats</computeroutput> flag, setting categories, makes it easier to control which tests to run.  The <computeroutput>smoke</computeroutput> test setting means that this is a basic test case that can and should be run any time you are doing any test. (<ulink url="http://www.nedbatchelder.com/blog/20030408T062805.html">a definition of "smoke test"</ulink>)</para>
       <para>Once the file is loaded, go to <ulink url="/test">ACS Automated Testing</ulink> and click on myfirstpackage.  You should see your test case.  Run it and examine the results.</para>
     <sect3>