The Racket repository
01a41a812e
[It will not bother me if we revert this commit. I liked SK's idea and found it easy to implement. I wonder if others will be worried that it is easy to unintentionally leave off the second argument to check-error. I also wonder if it is problematic to add new string constants, like I've done.] Here is an example: (check-error (/ 1 0) "/: division by zero") (check-error (/ 1 0) "divide by zero") (check-error (/ 1 0)) (check-error 1) Here is the output: Ran 4 tests. 2 of the 4 tests failed. No signature violations. Check failures: check-error encountered the following error instead of the expected divide by zero :: /: division by zero in ex.rkt, line 2, column 0 check-error expected an error, but instead received the value 1. in ex.rkt, line 4, column 0 |
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| README | ||
The Racket programming language =============================== Important executables: * DrRacket: Racket's integrated development environment (start here!). * Racket: the main command-line entry point for running racket programs and scripts. * GRacket: the GUI-enabled Racket executable. * raco: Racket's command-line toolset. More Information ---------------- Racket comes with extensive documentation: use DrRacket's `Help' menu, or run `raco docs'. Also, visit us at http://racket-lang.org/ for more Racket resources. Instructions for building Racket from source are in src/README. License ------- Racket Copyright (c) 2010 PLT Scheme Inc. Racket is distributed under the GNU Lesser General Public License (LGPL). This means that you can link Racket into proprietary applications, provided you follow the rules stated in the LGPL. You can also modify Racket; if you distribute a modified version, you must distribute it under the terms of the LGPL, which in particular means that you must release the source code for the modified software. See doc/release-notes/COPYING.LIB for more information.