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guile/test-suite
Andy Wingo a587d6a973 more fixes to equal? for arrays
* libguile/array-map.c (array_compare, scm_array_equal_p): Rewrite as
  something that operates on the generic array handle infrastructure.
  Based on array->list.
  (scm_i_array_equal_p): Change the docs, as array-equal? is now the same
  as equal?, except that it typechecks its args.

* doc/ref/api-compound.texi (Array Procedures): Update array-equal?
  docs.

* libguile/deprecated.h:
* libguile/deprecated.c (scm_raequal): Deprecate.

* libguile/bytevectors.c (scm_bytevector_eq_p): Bugfix: bytevectors are
  bytevector=? only if their element type is the same.

* libguile/eq.c (scm_equal_p): Only dispatch to scm_array_equal_p if
  both args are arrays (generically).

* test-suite/tests/arrays.test ("equal?"): Add some more tests.
2010-04-01 00:25:06 +02:00
..
lalr Add Boucher's lalr-scm' as the (system base lalr)' module. 2010-03-31 00:41:59 +02:00
standalone Change `dynamic-link' to return a global handle when the argument is omitted. 2010-03-17 00:54:01 +01:00
tests more fixes to equal? for arrays 2010-04-01 00:25:06 +02:00
ChangeLog-2008 Rename ChangeLog' files to ChangeLog-2008'. 2008-09-12 21:49:58 +02:00
guile-test Try to avoid `guile-test' failures when it can't display the name of a test. 2010-03-04 11:32:51 +01:00
lib.scm Move Latin-1 locale fiddling to `(test-suite lib)'. 2010-03-04 00:39:18 +01:00
Makefile.am rename unif.test to arrays.test 2010-03-31 21:17:05 +02:00
README Revert "Note need for subscription to bug-guile@gnu.org." 2008-12-10 19:07:14 +00:00

This directory contains some tests for Guile, and some generic test
support code.

To run these tests, you will need a version of Guile more recent than
15 Feb 1999 --- the tests use the (ice-9 and-let*) and (ice-9
getopt-long) modules, which were added to Guile around then.

For information about how to run the test suite, read the usage
instructions in the comments at the top of the guile-test script.

You can reference the file `lib.scm' from your own code as the module
(test-suite lib); it also has comments at the top and before each
function explaining what's going on.

Please write more Guile tests, and send them to bug-guile@gnu.org.
We'll merge them into the distribution.  All test suites must be
licensed for our use under the GPL, but I don't think I'm going to
collect assignment papers for them.



Some test suite philosophy:

GDB has an extensive test suite --- around 6300 tests.  Every time the
test suite catches a bug, it's great.

GDB is so complicated that folks are often unable to get a solid
understanding of the code before making a change --- we just don't
have time.  You'll see people say things like, "Here's a fix for X; it
doesn't cause any regressions."  The subtext is, I made a change that
looks reasonable, and the test suite didn't complain, so it must be
okay.

I think this is terrible, because it suggests that the writer is using
the test suite as a substitute for having a rock-solid explanation of
why their changes are correct.  The problem is that any test suite is
woefully incomplete.  Diligent reasoning about code can catch corner
conditions or limitations that no test suite will ever find.



Jim's rule for test suites:

Every test suite failure should be a complete, mysterious surprise,
never a possibility you were prepared for.  Any other attitude
indicates that you're using the test suite as a crutch, which you need
only because your understanding is weak.