Deadline: 5.30pm, Tuesday 18 September 2003.
Download and unpack the interpreter archive for this course, and make sure you can compile and run the interpreter:
cd interpreter javac hobbes/test/Main.java java hobbes.test.Main tests/Test*.hob java hobbes.test.Main tests/Fail*.hob
When you run the interpreter, you will get messages saying "Tests failed". Your homework is to get rid of these messages!
Each test file
TestNN.hob produces an
TestNN.txt file containing a
run of the program in
This is then compared with the file
if the files are the same, then the test passed, otherwise
In this case, the test failed because the pretty printer
for values is not finished. You can find the code for
printing values in
If you edit and recompile this file, you should be able to
get the tests to pass.
You should add comments to the code, indicating which edits you made, for example:
// Edited by Wilma Flintstone: print ("hello"); // End of edits.
Once you have a working edited version of
create a zip archive containing that file, plus any other files
you edited, and submit it using the
Courses Online system.