1
Fork 0
mirror of https://git.savannah.gnu.org/git/guile.git synced 2025-05-07 18:30:25 +02:00
guile/test-suite
Andy Wingo b8bc86bce1 instead of our custom .go format, use elf
* libguile/objcodes.c: Change to expect objcode on disk to be embedded
  in ELF instead of having the funky cookie.

  (to_native_order): Use already existing SCM_BYTE_ORDER style byte
  order instead of chars.
  (bytecode_to_objcode): No need for word_size arg.
  (scm_bytecode_to_objcode, scm_objcode_to_bytecode): Take optional
  endianness arg instead of sometimes using target-endianness.
  (scm_load_objcode, scm_write_objcode, scm_bytecode_to_native_objcode):
  Remove.

* libguile/objcodes.h: Adapt.

* libguile/vm.c (scm_load_compiled_with_vm): Use
  scm_load_thunk_from_file.
  (make_boot_program): Adapt to use scm_bytecode_to_objcode with
  endianness arg.

* module/Makefile.am (OBJCODE_LANG_SOURCES): Add (language objcode
  elf).
* module/language/objcode/elf.scm: New module, embeds objcode in ELF.

* module/language/bytecode/spec.scm (compile-objcode):
  (decompile-objcode): Use (target-endianness).

* module/language/objcode/spec.scm: use (language objcode elf) for
  write-objcode.

* module/scripts/disassemble.scm (disassemble):
* module/system/repl/command.scm (disassemble-file): Use
  load-thunk-from-file.

* module/system/vm/objcode.scm: Remove load-objcode and write-objcode.

* test-suite/tests/asm-to-bytecode.test (test-target): Adapt to the new
  ELF world.
2012-06-22 13:40:50 +02:00
..
lalr remove duplicate when/unless definitions 2012-01-20 21:16:50 +01:00
standalone Merge commit 'd10f7b572c' 2012-04-26 22:17:47 +02:00
test-suite Add the `%default-port-conversion-strategy' fluid. 2012-05-31 00:50:36 +02:00
tests instead of our custom .go format, use elf 2012-06-22 13:40:50 +02:00
vm Improve the usage of variable names in Scheme docstrings. 2012-02-02 12:24:40 +01:00
ChangeLog-2008 Rename ChangeLog' files to ChangeLog-2008'. 2008-09-12 21:49:58 +02:00
guile-test make guile-test work without configuration 2010-12-07 13:21:00 +01:00
Makefile.am Merge commit 'f66cbb99ee' 2012-04-26 23:36:02 +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.