NAME

Test::Cucumber::Tiny - Cucumber-style testing in perl

DESCRIPTION

This Testing module provides a simple and less dependancy to run cucumber tests.

Cucumber is a tool that executes plain-text functional descriptions as automated tests. The language that Cucumber understands is called Gherkin.

We only need 2 things to build Cucumber test, a list a scenarios and to define the functions for the scenarios. Example in synopsis.

While Cucumber can be thought of as a "testing" tool, the intent of the tool is to support BDD. This means that the "tests" are typically written before anything else and verified by business analysts, domain experts, etc. non technical stakeholders. The production code is then written outside-in, to make the stories pass.

SYNOPSIS

If you need to shared the scenarios with the business analysts.

Use yml format to write the scenarios and then using YAML module to decode it into arrayref for constructing a cucumber.

Here is an example using arrayref:

 use Test::Most tests => 1;
 use Test::Cucumber::Tiny;

 subtest "Feature Test - Calculator" => sub {
    ## In order to avoid silly mistake
    ## As a math idiot
    ## I want to be told a sum of 2 numbers

    my $cucumber = Test::Cucumber::Tiny->new(
        scenarios => [
            {
                Scenario => "Add 2 numbers",
                Given    => [
                    "first, I entered 50 into the calculator",
                    "second, I entered 70 into the calculator",
                ],
                When => [ "I press add", ],
                Then => [ "The result should be 120 on the screen", ]
            },
            {
                Scenario => "Add numbers in examples",
                Given    => [
                    "first, I entered <1st> into the calculator",
                    "second, I entered <2nd> into the calculator",
                ],
                When     => [ "I press add", ],
                Then     => [ "The result should be <answer> on the screen", ],
                Examples => [
                    {
                        '1st'  => 5,
                        '2nd'  => 6,
                        answer => 11,
                    },
                    {
                        '1st'  => 100,
                        '2nd'  => 200,
                        answer => 300,
                    }
                ],
            },
            {
                Scenario => "Add numbers using data",
                Given    => [
                    {
                        condition => "first, I entered number of",
                        data      => 45,
                    },
                    {
                        condition => "second, I entered number of",
                        data      => 77,
                    }
                ],
                When => [ "I press add", ],
                Then => [
                    {
                        condition => "The result is",
                        data      => 122,
                    }
                ],
            }
        ]
    );
    $cucumber->Given(
        qr/^(.+),.+entered (\d+)/,
        sub {
            my $c = shift;
            diag shift;
            $c->{$1} = $2;
        }
    );
    $cucumber->Given(
        qr/^(.+),.+entered number of/,
        sub {
            my $c = shift;
            diag shift;
            $c->{$1} = $c->{data},;
        }
    );
    $cucumber->When(
        qr/press add/,
        sub {
            my $c = shift;
            diag shift;
            $c->{answer} = $c->{first} + $c->{second};
        }
    );
    $cucumber->When(
        qr/press subtract/,
        sub {
            my $c = shift;
            diag shift;
            $c->{answer} = $c->{first} - $c->{second};
        }
    );
    $cucumber->Then(
        qr/result.+should be (\d+)/,
        sub {
            my $c = shift;
            is $1, $c->{answer}, shift;
        }
    );
    $cucumber->Then(
        qr/result is/,
        sub {
            my $c = shift;
            is $c->{data}, $c->{answer}, shift;
        }
    );
    $cucumber->Test;
 };

METHODS

Given

@param regexp / hashref { regexp, data }

@param code ref

When

@param regexp / hashref { regexp, data }

@param code ref

Then

@param regexp / hashref { regexp, data }

@param code ref

Test

Start Cucumber to run through the scenario.

SEE ALSO

http://cukes.info/

https://github.com/cucumber/cucumber/wiki/Scenario-outlines