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131 .IX Title "Test::Builder::Module 3"
132 .TH Test::Builder::Module 3 "2009-09-02" "perl v5.8.7" "User Contributed Perl Documentation"
134 Test::Builder::Module \- Base class for test modules
136 .IX Header "SYNOPSIS"
138 \& # Emulates Test::Simple
139 \& package Your::Module;
143 \& my $CLASS = __PACKAGE__;
147 \& use base 'Test::Builder::Module';
153 \& my $tb = $CLASS\->builder;
154 \& return $tb\->ok(@_);
162 .IX Header "DESCRIPTION"
163 This is a superclass for Test::Builder\-based modules. It provides a
164 handful of common functionality and a method of getting at the underlying
165 Test::Builder object.
167 .IX Subsection "Importing"
168 Test::Builder::Module is a subclass of Exporter which means your
169 module is also a subclass of Exporter. \f(CW@EXPORT\fR, \f(CW@EXPORT_OK\fR, etc...
172 A few methods are provided to do the \f(CW\*(C`use Your::Module tests =\*(C'\fR 23> part
176 .IX Subsection "import"
178 Test::Builder::Module provides an \fIimport()\fR method which acts in the
179 same basic way as Test::More's, setting the plan and controling
180 exporting of functions and variables. This allows your module to set
181 the plan independent of Test::More.
183 All arguments passed to \fIimport()\fR are passed onto
184 \&\f(CW\*(C`Your::Module\->builder\->plan()\*(C'\fR with the exception of
185 \&\f(CW\*(C`import =\*(C'\fR[qw(things to import)]>.
188 \& use Your::Module import => [qw(this that)], tests => 23;
191 says to import the functions \fIthis()\fR and \fIthat()\fR as well as set the plan
194 \&\fIimport()\fR also sets the \fIexported_to()\fR attribute of your builder to be
195 the caller of the \fIimport()\fR function.
197 Additional behaviors can be added to your \fIimport()\fR method by overriding
198 \&\fIimport_extra()\fR.
201 .IX Subsection "import_extra"
204 \& Your::Module\->import_extra(\e@import_args);
207 \&\fIimport_extra()\fR is called by \fIimport()\fR. It provides an opportunity for you
208 to add behaviors to your module based on its import list.
210 Any extra arguments which shouldn't be passed on to \fIplan()\fR should be
211 stripped off by this method.
213 See Test::More for an example of its use.
215 \&\fB\s-1NOTE\s0\fR This mechanism is \fI\s-1VERY\s0 \s-1ALPHA\s0 \s-1AND\s0 \s-1LIKELY\s0 \s-1TO\s0 \s-1CHANGE\s0\fR as it
216 feels like a bit of an ugly hack in its current form.
218 .IX Subsection "Builder"
219 Test::Builder::Module provides some methods of getting at the underlying
220 Test::Builder object.
223 .IX Subsection "builder"
226 \& my $builder = Your::Class\->builder;
229 This method returns the Test::Builder object associated with Your::Class.
230 It is not a constructor so you can call it as often as you like.
232 This is the preferred way to get the Test::Builder object. You should
233 \&\fInot\fR get it via \f(CW\*(C`Test::Builder\->new\*(C'\fR as was previously
236 The object returned by \fIbuilder()\fR may change at runtime so you should
237 call \fIbuilder()\fR inside each function rather than store it in a global.
241 \& my $builder = Your::Class\->builder;
245 \& return $builder\->ok(@_);