Behat Layered Cake - KaunasPHP

Transcript

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   Behat Layered Cake KaunasPHP edition Kaunas, 14 Jan 2015

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   Labas vakaras!

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   @super_marek Marek Matulka

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   at SensioLabsUK Software Engineer

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   part of Inviqa Group SensioLabsUK

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   None
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   a tool that makes BDD possible

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   With Behat you can...

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   With Behat you can... ...write human-readable stories that describe behaviour

   of your application.
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    With Behat you can... ...automate testing of your application’s behaviour

    with human-readable examples.
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    With Behat you can... ...change behaviour of your application with

    confidence.
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    None
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    Typical dev stack - Vagrant VM - Symfony framework -

    mysql or mongodb storage - Linux/OS X host - scrutiniser-ci
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    A project

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    That’s sloooow!

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    Should I get a faster computer?

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    What is the problem?

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    Where’s the problem? it takes too much time

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    Where’s the problem? Guest VM

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    Where’s the problem? MySQL

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    Where’s the problem? MySQL inside Guest VM

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    Let’s try it on the host!

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    A project

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    (63 scenarios in 320 steps) vs

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    But!

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    What if... my project grows and I’ll have 3000+ steps?

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    What if I had 3000+ steps? 300 steps took over

    10 minutes 3000 steps will take over 100 minutes! (inside guest VM)
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    What if I had 3000+ steps? 300 steps took over

    1 minute 3000 steps will take over 10 minutes! (on host)
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    How to make it faster?

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    Disable xdebug extension 30-40% improvement

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    Replace slow modules with... Replace slow DB with fast in-memory

    or file-system persistent storage
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    Example Controller

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    Example Controller

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    (short introduction to) Layered Architecture

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    Layered Architecture User Interface Application Domain Infrastructure

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    Dependency Inversion “High level modules should not depend on lower

    level implementation” – Good old Uncle Bob
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    Dependency Inversion Policy Layer <interface> Policy Service Mechanism Layer <interface>

    Mechanism Service Utility Layer
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    (short introduction to) Hexagonal Architecture

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    Hexagonal Architecture Browser Logs Database Auth Domain

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    Hexagonal Architecture UI Adapter Log Adapter Data Storage Adapter External

    Data Adapter Domain
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    Hexagonal Architecture UI Adapter Log Adapter Data Storage Adapter Domain

    UI client port log adapter port persistence layer port Data Provider Adapter data provider port
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    Hexagonal Architecture UI Adapter Log Adapter Test Adapter Test Adapter

    Data Storage Adapter Test Adapter Domain External Data Adapter Test Adapter
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    How to do that?

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    Repository Interface Acme\Learning\Conference Acme\Learning\ConferenceRepository

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    Repository Interface Acme\Learning\Conference Acme\Learning\ConferenceRepository Domain Port

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    Describe Communication

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    Your controller

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    Spec Controller to use Interface

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    Spec Controller to use Interface Port

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    Implement your repository

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    Implement your repository Port Adapter

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    Register repository as a Service!

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    Add another Adapter

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    Implement your repository

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    Implement your repository Port Adapter

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    Register repository as a Service!

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    Configure the Test env

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    Prepare Test Infrastructure config_test.yml:

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    Configure dependency injection

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    How fast can it be?

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    MySql Inside Guest VM

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    MySql On Host

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    Mocked Storage Inside Guest VM

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    Mocked Storage On Host

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    Things to remember

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    Hexagonal Architecture UI Adapter Log Adapter Test Adapter Test Adapter

    Data Storage Adapter Test Adapter Domain External Data Adapter Test Adapter
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    Integration tests Don’t forget to test your adapters! Use PhpUnit

    for that.
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    Talk to me after presentation! Demo

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    Questions?

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    Thank you! https://speakerdeck.com/super_marek @super_marek