<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta content="text/html;charset=ISO-8859-1" http-equiv="Content-Type"> </head> <body bgcolor="#ffffff" text="#000000"> Marco, Does DrScheme allow you to evaluate anything in the interactions window at all?  I.e. if you do (+ 2 2) in the interactions window, does it report "4"?  Similarly, does it allow you to define a simple function in the defintions window and evaluate it in the interactions window?  I'm just wondering if something more fundamental than testing is wrong here. Mike Marco Morazan wrote: <blockquote cite="mid:9b1fff280811121733n40ec4400hc6d0d8783d51017@mail.gmail.com" type="cite"> <pre wrap="">This does not look promising. :-( I can not reproduce the behavior on any of my machines. I have worked on the machine of my student and it does not report anything about tests passing or not. It does not complain about now knowing check-expect. It is just weird. I personally unistalled and re-intalled DrScheme and no difference. The student is running Windows Vista (as on one of my machines) on a Sony Vaio. Does any of this matter? If anyone has suggestions, I welcome them. Marco On Wed, Nov 12, 2008 at 5:32 PM, Matthias Felleisen <a class="moz-txt-link-rfc2396E" href="mailto:matthias@ccs.neu.edu"><matthias@ccs.neu.edu></a> wrote: </pre> <blockquote type="cite"> <pre wrap="">I can't reproduce this result at all. I copied your code into an empty def window and added the define-struct. I get this in the interactions window: </pre> <blockquote type="cite"> <pre wrap="">Welcome to DrScheme, version 4.1.2.4-svn11nov2008 [3m]. Language: Intermediate Student with lambda. All tests passed! </pre> </blockquote> <pre wrap="">(Of course the tests don't cover everything and the code doesn't follow the design recipe. :-) -- Matthias On Nov 12, 2008, at 3:38 PM, Marco Morazan wrote: </pre> <blockquote type="cite"> <pre wrap="">Dear All, I have a student who wrote the following code: ; Oldest Generation (define Petrona (make-child empty empty 'Petrona 1876 'Brown)) (define Petr (make-child empty empty 'Petr 1896 'Brown)) (define Lena (make-child empty empty 'Lena 1896 'Brown)) ; Second Oldest Generation (define Jose (make-child empty Petrona 'Jose 1895 'Brown)) (define Marina (make-child empty empty 'Marina 1910 'Brown)) (define Walter (make-child empty empty 'Walter 1912 'Blue)) (define Helen (make-child Petr Lena 'Helen 1917 'Brown)) ; Third Oldest Generation (define Marco2 (make-child Jose Marina 'Marco 1934 'Brown)) (define Doris (make-child Walter Helen 'Doris 1935 'Brown)) ; Youngest Generation (define Marco (make-child Marco2 Doris 'Marco 1967 'Brown)) ;numanc: at -> num (define (numanc an-at) (cond [(empty? an-at) 0] [else (+ (parents an-at) (numanc (child-mother an-at)) (numanc (child-father an-at)))])) ; parents at -> num (define (parents an-at) (cond [(empty? an-at) 0] [(and (empty? (child-mother an-at))(empty? (child-father an-at))) 0] [(or (empty? (child-mother an-at))(empty? (child-father an-at))) 1] [else 2])) ;examples (check-expect (numanc Petrona) 0) (check-expect (numanc Jose) 1) (check-expect (numanc Marco2) 3) (check-expect (numanc Marco) 9) The output in the interactions window after hitting run is: Welcome to DrScheme, version 4.1.2 [3m]. Language: Beginning Student with List Abbreviations; memory limit: 128 megabytes. </pre> <pre wrap="">As you can see, no indication of tests passing. Any suggestions? We uninstalled and re-installed DrScheme. We explictily added testing.ss. All to no avail. -- Cheers, Marco _________________________________________________ PLT Educators mailing list <a class="moz-txt-link-abbreviated" href="mailto:plt-edu@list.cs.brown.edu">plt-edu@list.cs.brown.edu</a> <a class="moz-txt-link-freetext" href="http://list.cs.brown.edu/mailman/listinfo/plt-edu">http://list.cs.brown.edu/mailman/listinfo/plt-edu</a> </pre> </blockquote> <pre wrap=""> </pre> </blockquote> <pre wrap=""> </pre> </blockquote> </body> </html>