Transmogrifier

Transmogrifier is a tool to help setup your database fixtures before running your tests.

You can use it in the following ways:

1. As a simple command-line utility (great for your build scripts and continuous integration)
2. As a PHP library
3. As a Behat extension, enabling Gherkin statements for automated BDD database testing

1. Command-line utility

You can use Transmogrifier as a command-line utility (stand-alone, or as part of your PHP project through composer).

Standalone

0. clone this git repository
1. run composer install to install all dependencies
2. run bin/transmogrifier --help for a list of available commands

Through composer, in your PHP project:

Open your composer.json file, and add this to the require section:

"linkorb/transmogrifier": "dev-master"

You can now run vendor/bin/transmogrifier.

Adding transmogrifier commands to an existing Symfony/Console application

Add the following line to an existing Symfony/Console application in order to enable the Transmogrifier commands to it:

$application->add(new \LinkORB\Transmogrifier\Command\DatasetApplyCommand());

Available commands

transmogrifier:datasetapply

The most interesting usage through the command-line is the transmogrifier:applydataset command.

You can use it like this:

bin/transmogrifier transmogrifier:applydataset --dbname=test example/user.yml

This command will ensure that the dbname database contains the dataset specified in example/user.yml

2. PHP Library

You can use the Transmogrifier very easily from within your own PHP projects as a library.

Installing the library through composer

pen your composer.json file, and add this to the require section:

"linkorb/transmogrifier": "dev-master"

How to use the library

The 2 main classes are:

• Dataset: A class that can load datasets from files, and apply them to databases.
• Database: A connection to a database, providing helpers for initializing the connection.

Here's an example usage:

$db = new Database();
// Optionally initialize db parameters by file, cli options, or explicit values
$db->parseConf('/path/to/my/dbconf/test.conf');
$db->connect();

$dataset = new Dataset();
$dataset->loadDatasetFile('/path/to/my/dataset.yml');
$dataset->applyTo($db);

3. Behat Extension

There is a Transmogrifier Extension available for Behat!

This allows you to use Transmogrifier directly from your Behat .feature files.

Check out the extension and it's documentation here:

• https://github.com/linkorb/transmogrifierextension

Supported file-formats

The dataset importer is based on phpunit/dbunit. It currently supports the following file-formats:

• YAML
• Flat XML
• XML
• CSV

The Dataset loader guesses the format based on the file-extension.

Please refer to the example/ directory for datasets in these formats. The PHPUnit documentation contains further information about the loaders:

• PHPUnit DBUnit documentation

Database .conf files

To simplify connecting to your database, Transmogrify can load conneciton settings from a simple .conf file.

An example file looks like this:

name=test
server=127.0.0.1
username=susie
password=mrbun
driver=mysql

You can use these .conf files in all Transmogrifier modes: Command-line, Behat, or library. The connection is established through PDO, so all PDO supported databases will work.

Example datasets

The examples/ directory contains a few datasets you can use to try out Transmogrifier, see how it works, and copy as a starting-point for your own datasets.

Create the schema

The examples will ensure 2 users, 'Calvin' and 'Hobbes', are registed in your user table.

Before you can try these out, use the following SQL to generate the user table in your test database:

CREATE TABLE user (id int, name varchar(16), email varchar(32), password varchar(32));

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