Proposal for xSpep BDD Framework for PHP

Proposal for xSpec
BDD Framework
for PHP
Beyond PHPUnit and PHPSpec

@yuya_takeyama

Recent Activities
• Making DSL with [] (#phpcon2011 LT)
http://blog.yuyat.jp/archives/1355

• PHPUnit でよりよくテストを書くために

• phpenv で複数の PHP 環境を管理する

• Building Development Environment
with php-build and phpenv

• 例えば, Singleton を避ける (New! #TddAdventJp)

xUnit (Unit Testing Frameworks)
• SUnit (Smalltalk)

• JUnit (Java)

• Test::Unit (Ruby)

• PHPUnit (PHP)

xSpec (Testing Frameworks for BDD)
• RSpec (Ruby)

• Jasmine (JavaScript)

• specs (Scala)

• PHPSpec (PHP)

BDD (Behaviour Driven Development)
• Not test, specify!

• It should ...

• Expressive

• Test as Documentation

RSpec example
describe Bowling do
  describe '#score' do
    context 'all gutter game' do
      before do
        @bowling = Bowling.new
        20.times { @bowling.hit(0) }
      end

      it 'should equal 0' do
        @bowling.score.should eq(0)
      end
    end
  end
end

RSpec example
describe Bowling do
      before do
      end

      end
    end
  end
end Not Test, Specify

RSpec example
describe Bowling do
      before do
      end

      end
    end
  end
end It should ...

RSpec example
describe Bowling do
      before do
      end

      end
    end
  end
end Expressive

RSpec example
describe Bowling do

Test a

s
      before do

Docum

entati
      end

o n
      end
    end
  end
end

PHPUnit example
class BowlingTest extends PHPUnit_Framwork_TestCase
{
    private $_bowling;

    public function setUp()
    {
        $this->_bowling = new Bowling;
    }

    public function testScore0ForAllGutterGame()
    {
        for ($i = 0; $i <= 20; $i++) {
            $this->_bowling->hit(0);
        }
        $this->assertEquals(0, $this->_bowling->score);
    }
}

PHPSpec example
class DescribeBowling extends PHPSpecContext
{
    private $_bowling;

    public function before()
    {
        $this->_bowling = $this->spec(new Bowling);
    }

    public function itShouldScore0ForAllGutterGame()
    {
        for ($i=1; $i<=20; $i++) {
        }
        $this->_bowling->score->should->equal(0);
    }
}

PHPSpec example
{
    private $_bowling;

    {
    }

    {
        for ($i=1; $i<=20; $i++) {
        }
    }
}
Not Test, Specify

PHPSpec example
{
    private $_bowling;

    {
    }

    {
        for ($i=1; $i<=20; $i++) {
        }
    }
}
It should ...

PHPSpec example
{
    private $_bowling;

    {
    }

    {
        for ($i=1; $i<=20; $i++) {
        }
    }
}
Expressive

PHPSpec example
{

Test a
    private $_bowling;

Docum s
    {

entati
    }


o n
    {
        for ($i=1; $i<=20; $i++) {
        }
    }
}

Issue of PHPUnit/PHPSpec

•No nested context

•Speciﬁcation with
camelCase or
lower_case_with_underscore

Issue of PHPUnit/PHPSpec

• I want
more
No nested context

• exp
ressiv
Speciﬁcation with

eness!
camelCase or
lower_case_with_underscore

Speciphy
https://github.com/yuya-takeyama/Speciphy

•Nested context

• Speciﬁcation with string

• PHPSpec matchers

Speciphy example
namespace SpeciphyDSL;

return describe('Bowling', array(
    describe('->score', array(
        context('all gutter game', array(
            'subject' => function () {
                $bowling = new Bowling;
                for ($i = 1; $i <= 20; $i++) {
                    $bowling->hit(0);
                }
                return $bowling;
            },

            it('should equal 0', function ($bowling) {
                $bowling->score->should->equal(0);
            }),
        )),
    )),
));

Speciphy example

                for ($i = 1; $i <= 20; $i++) {
                    $bowling->hit(0);
                }
                return $bowling;
            },

            }),
        )),
    )), Not Test, Specify
));

Speciphy example

                for ($i = 1; $i <= 20; $i++) {
                    $bowling->hit(0);
                }
                return $bowling;
            },

            }),
        )),
    )), It should...
));

Speciphy example

                for ($i = 1; $i <= 20; $i++) {
                    $bowling->hit(0);
                }
                return $bowling;
            },

            }),
        )),
    )), Expressive
));

Speciphy example


Test a

Docum s
                for ($i = 1; $i <= 20; $i++) {

entati
                    $bowling->hit(0);
                }
                return $bowling;

on?
            },

            }),
        )),
    )),
));

Proposal #1
Use function
in namespace,
Not method
in class

Speciphy example

                for ($i = 1; $i <= 20; $i++) {
                    $bowling->hit(0);
                }
                return $bowling;
            },

            }),
        )),
    )), SpeciphyDSLdescribe
));

Speciphy example

                for ($i = 1; $i <= 20; $i++) {
                    $bowling->hit(0);
                }
                return $bowling;
            },

            }),
        )),
    )), SpeciphyDSLcontext
));

Speciphy example

                for ($i = 1; $i <= 20; $i++) {
                    $bowling->hit(0);
                }
                return $bowling;
            },

            }),
        )),
    )), SpeciphyDSLit
));

Proposal #2

Use array
to build
nested context.

Speciphy example

                for ($i = 1; $i <= 20; $i++) {
                    $bowling->hit(0);
                }
                return $bowling;
            },

            }),
        )),
    )), Nested context
));

Array,
A Strange
Data Structure

[
"foo",
"bar",
"hoge" => "piyo"
]

array(3) {
[0]=>
string(3) "foo"
[1]=>
string(3) "bar"
["hoge"]=>
string(4) "piyo"
}

Model Deﬁnition
public $id = [
'int',
'primary' => true,
'serial' => true
];
public $name = [
'string',
'required' => true,
'unique' => true
];
public $birthday = ['date'];

Paml
https://github.com/yuya-takeyama/php-HTML_Paml

["div",
  ["ul",
    ["li", "Foo"]
    ["li", "Bar"]
    ["li", "Baz"]]]

HTML Generation
<div>
  <ul>
    <li>Foo</li>
    <li>Bar</li>
    <li>Baz</li>
  </ul>
</div>

LisPHP
https://github.com/yuya-takeyama/LisPHP
['begin',
['define',
'fib',
['lambda',
['x'],
['if',
['<', ':x', 2],
':x',
['+',
['fib', ['-', ':x', 2]],
['fib', ['-', ':x', 1]]]]]],
['print', 'fib(10) = '],
['println', ['fib', 10]]]
=> fib(10) = 55

Speciphy example

                for ($i = 1; $i <= 20; $i++) {
                    $bowling->hit(0);
                }
                return $bowling;
            },

            }),
        )),
    )), $arr[ subject ]
));

Speciphy example

                for ($i = 1; $i <= 20; $i++) {
                    $bowling->hit(0);
                }
                return $bowling;
            },

            }),
        )),
    )), $arr[0]
));

Conclusion
•Use function in namespace,
Not method in class

•Use array to build nested
structure

•Enjoy BDD with xSpec

Proposal for xSpep BDD Framework for PHP

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