NAME

Test::CChecker - Test-time utilities for checking C headers, libraries, or OS features (DEPRECATED)

VERSION

version 0.10

SYNOPSIS

use Alien::Foo;
use Test::CChecker;

compile_with_alien 'Alien::Foo';

compile_run_ok <<C_CODE, "basic compile test";
int
main(int argc, char *argv[])
{
  return 0;
}
C_CODE

DESCRIPTION

DEPRECATED: The intention of this module was always to test Alien modules (both Alien::Base based and non-Alien::Base based modules). It has a number of shortcomings that I believe to be better addressed by Test::Alien, so please consider using that for new projects, or even migrating existing code.

This module is a very thin convenience wrapper around ExtUtils::CChecker to make it useful for use in a test context. It is intended for use with Alien modules which need to verify that libraries work as intended with the Compiler and flags used by Perl to build XS modules.

By default this module is very quiet, hiding all output using Capture::Tiny unless there is a failure, in which case you will see the commands, flags and output used.

FUNCTIONS

All documented functions are exported into your test's namespace

cc

my $cc = cc;

Returns the ExtUtils::CChecker object used for testing.

This is mainly useful for adding compiler or linker flags:

cc->push_extra_compiler_flags('-DFOO=1');
cc->push_extra_linker_flags('-L/foo/bar/baz', '-lfoo')

compile_run_ok

compile_run_ok $c_source;
compile_run_ok $c_source, $message;

compile_run_ok {
  source => $c_source,
  extra_compiler_flags => \@cflags,
  extra_linker_flags => \@libs,
}, $message;

This test attempts to compile the given c source and passes if it runs with return value of zero. The first argument can be either a string containing the C source code, or a hashref (which will be passed unmodified as a hash to ExtUtils::CChecker try_compile_run).

If the test fails, then the complete output will be reported using Test::More diag.

You can have it report the output on success with "compile_output_to_diag" or "compile_output_to_note".

In addition to the pass/fail and diagnostic output, this function will return true or false on success and failure respectively.

compile_ok

compile_ok $c_source, $message;

compile_ok {
  source => $c_source,
  extra_compiler_flags => \@cflags,
}, $message;

This is like "compile_run_ok", except it stops after compiling and does not attempt to link or run.

compile_with_alien

use Alien::Foo;
compile_with_alien 'Alien::Foo';

Specifies an Alien module to use to get compiler flags and libraries. You may pass in either the name of the class (it must already be loaded), or an instance of that class. The instance of the Alien class is expected to implement cflags and libs methods that return the compiler and library flags respectively.

If you are testing an Alien module after it has been built, but before it has been installed (for example if you are writing the test suite FOR the Alien module itself), you need to install to a temporary directory named _test. If you are using Alien::Base, the easiest way to do this is to add a make install with DISTDIR set to _test:

Alien::Base::Module::Build->new(
  ...
  "alien_build_commands" => [
    "%pconfigure --prefix=%s",
    "make",
    "make DESTDIR=`pwd`/../../_test install",
  ],
  ...
)->create_build_script;

or if you are using Dist::Zilla, something like this:

[Alien]
build_command = %pconfigure --prefix=%s --disable-bsdtar --disable-bsdcpio
build_command = make
build_command = make DESTDIR=`pwd`/../../_test install

compile_output_to_nowhere

compile_output_to_nowhere

Do not report output unless there is a failure. This is the default behavior.

compile_output_to_diag

compile_output_to_diag;

Report output using Test::More diag on success (output is always reported on failure using daig).

compile_output_to_note

compile_output_to_note;

Report output using Test::More note on success (output is always reported on failure using diag).

SEE ALSO

Please consider using the official replacement:

Test::Alien

AUTHOR

Graham Ollis <plicease@cpan.org>

COPYRIGHT AND LICENSE

This software is copyright (c) 2013 by Graham Ollis.

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.