Test::BDD::Cucumber::Manual::Steps(3pm) 		User Contributed Perl Documentation		   Test::BDD::Cucumber::Manual::Steps(3pm)

NAME

       Test::BDD::Cucumber::Manual::Steps - How to write Step Definitions

VERSION

       version 0.11

INTRODUCTION

       The 'code' part of a Cucumber test-suite are the Step Definition files which match steps, and execute code based on them. This document
       aims to give you a quick overview of those.

STARTING OFF

       Most of your step files will want to start something like:

	#!perl

	use strict;
	use warnings;

	use Test::More;
	use Test::BDD::Cucumber::StepFile;
	use Method::Signatures;

       The fake shebang line gives some hints to syntax highlighters, and "use strict;" and "use warnings;" are hopefully fairly standard at this
       point.

       Most of my Step Definition files make use of Test::More, but you can use any Test::Builder based testing module. Your step will pass its
       pass or fail status back to its harness via Test::Builder - each step is run as if it were its own tiny test file, with its own localized
       Test::Builder object.

       Test::BDD::Cucumber::StepFile gives us the functions "Given()", "When()", "Then()" and "Step()". These pass the step definitions to the
       class loading the step definitions, and specify which Step Verb should be used - "Step()" matches any.

       Method::Signatures allows us to use a small amount of syntactic sugar for the step definitions, and gives us the "func()" keyword you'll
       see in a minute.

STEP DEFINITIONS

	Given qr/I have (d+)/, func ($c) {
	   $c->stash->{'scenario'}->{'count'} += $1;
	}

	When "The count is an integer", func ($c) {
	   $c->stash->{'scenario'}->{'count'} =
	       int( $c->stash->{'scenario'}->{'count'} );
	}

	Then qr/The count should be (d+)/, func ($c) {
	   is( $c->stash->{'scenario'}->{'count'}, $c->matches->[0], "Count matches" );
	}

       Each of the exported verb functions accept a regular expression (or a string that's used as one), and a coderef. The coderef is passed a
       single argument, the Test::BDD::Cucumber::StepContext object. To make this a little prettier, we use Method::Signatures's "func()" keyword
       so we're not continually typing: "sub { my $c = shift; ... ".

       We will evaluate the regex immediately before we execute the coderef, so you can use $1, $2, $etc, although these are also available via
       the StepContext.

NEXT STEPS

       How step files are loaded is discussed in Test::BDD::Cucumber::Manual::Architecture, but isn't of much interest. Of far more interest
       should be seeing what you have available in Test::BDD::Cucumber::StepContext...

AUTHOR

       Peter Sergeant "pete@clueball.com"

LICENSE

       Copyright 2011, Peter Sergeant; Licensed under the same terms as Perl

perl v5.14.2							    2012-05-20				   Test::BDD::Cucumber::Manual::Steps(3pm)