Added travis + tests + cs fixes

[mickaelandrieu]

This contribution is about adding premises of a test suite and coding styles.

Also, a configuration for Travis.

[PierreRambaud]

2016?

[mickaelandrieu]

if I update this one I need to update all the others, I'd like to keep this pull request with one scope only

[mickaelandrieu]

interesting point here: passing env variables here make the special @php unavailable in Composer scripts. I don't know if it's intended or not.

[matks]

@mickaelandrieu Wen being shipped to Addons as a downloadable PS module, do you know what process is performed ? I think there is at least 1 composer install.

• is the composer install performed for DEV or PROD
• shall we remove the test files (phpunit.xml, .travis.yml) and folders (tests and tools) as they are not useful for the module to be executed/installed ?

[matks]

⚠️ this PR targets master instead of dev, is that intended ?

[mickaelandrieu]

is the composer install performed for DEV or PROD?

I don't think composer is called at all, that's why I don't use it to autoload module classes

shall we remove the test files (phpunit.xml, .travis.yml) and folders (tests and tools) as they are not useful for the module to be executed/installed ?

We could, but how? I'm thinking about using deploy feature of travis ci to perform these tasks, but this wont be addressed here.

this PR targets master instead of dev, is that intended ?

I don't know because I can't figure out why we have both dev and master branches on every module :/ ping @Quetzacoalt91

[Quetzacoalt91]

• Composer is run with --no-dev parameter when deployed to the marketplace. This allow the zip to not provide useless stuff for the merchants.

• dev contains the current version in progress. Once we are ready to publish a new version, we merge dev into master to trigger a new release on the marketplace the next night.

[mickaelandrieu]

I've switched to dev and as I have only dev dependencies, there won't be any impact for the marketplace.

Thanks for the answers @Quetzacoalt91 !

[matks]

Thanks @mickaelandrieu