Test::Exports - Test that modules export the right symbols
require_ok "My::Module" or BAIL_OUT "can't load module";
import_ok "My::Module", , "default import OK";
is_import qw/foo bar/, "My::Module", "imports subs";
import_ok "My::Module", ["foo"], "named import OK";
is_import "foo", "My::Module", "imports foo";
cant_ok "bar", "doesn't import bar";
This module provides simple test functions for testing other modules' import methods. Testing is currently limited to checking which subs have been imported.
In order to keep different calls to ->import separate, Test::Exports performs these calls from a private package. The symbol-testing functions then test whether or not symbols are present in this private package, ensuring none of this interferes with your test script itself.
These are all exported by default, as is usual with testing modules.
Create a new package to perform imports into. This is useful when you want to test ->import with different arguments: otherwise you'd need to find some way of going back and clearing up the imports from the last call.
This returns the name of the new package (which will look like Test::Exports::TestAAAAB) in case you need it.
import_ok $module, \@args, $name
Call $module->import from the current testing package, passing @args, and check the call succeeded. 'Success' means not throwing an exception: use doesn't care if import returns false, so neither do we.
@args defaults to the empty list; $name defaults to something sensible.
import_nok $module, \@args, $name
Call $module->import(@args) and expect it to throw an exception. Defaults as for "import_ok".
is_import @subs, $module, $name
For each name in @subs, check that the current testing package has a sub by that name and that it is the same as the equinominal sub in the $module package.
Neither $module nor $name are optional.
cant_ok @subs, $name
For each sub in @subs, check that a sub of that name does not exist in the current testing package. If one is found the diagnostic will indicate where it was originally defined, to help track down the stray export.
Currently this just checks that \&Our::Pkg::sub == \&Your::Pkg::sub, which means
\&Our::Pkg::sub == \&Your::Pkg::sub
it is impossible to test for exports which have been renamed, and
we can't be sure the sub originally came from Your::Pkg: it may have been exported into both packages from somewhere else.
It would be good to fix at least the former.
Ben Morrow <email@example.com>
Please report any bugs to <bug-Test-Exports@rt.cpan.org>.
Copyright 2010 Ben Morrow.
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To install Test::Exports, copy and paste the appropriate command in to your terminal.
perl -MCPAN -e shell
For more information on module installation, please visit the detailed CPAN module installation guide.