Add integration tests for ODM features

[lcobucci]

Which kicks-off the support for #26

Depends on #38

[alcaeus]

This PR is incomplete: there needs to be more distinction as to the types returned. For example, the repository extension always returns an EntityRepository type, even for ODM which isn't correct. See #36 for a more complete implementation. I would suggest combining the tests from this PR with the changes from #36. BC preserving changes (e.g. not removing the Entity* classes can be dropped from the other PR. Opinion @ondrejmirtes?

[ondrejmirtes]

Hi, I'm not able to try this out because of:

  Problem 1
    - alcaeus/mongo-php-adapter 1.1.x-dev requires ext-mongodb ^1.2.0 -> the requested PHP extension mongodb is missing from your system.
    - alcaeus/mongo-php-adapter 1.1.5 requires ext-mongodb ^1.2.0 -> the requested PHP extension mongodb is missing from your system.
    - alcaeus/mongo-php-adapter 1.1.4 requires ext-mongodb ^1.2.0 -> the requested PHP extension mongodb is missing from your system.
    - alcaeus/mongo-php-adapter 1.1.3 requires ext-mongodb ^1.2.0 -> the requested PHP extension mongodb is missing from your system.
    - alcaeus/mongo-php-adapter 1.1.2 requires ext-mongodb ^1.2.0 -> the requested PHP extension mongodb is missing from your system.
    - alcaeus/mongo-php-adapter 1.1.1 requires ext-mongodb ^1.2.0 -> the requested PHP extension mongodb is missing from your system.
    - alcaeus/mongo-php-adapter 1.1.0 requires ext-mongodb ^1.2.0 -> the requested PHP extension mongodb is missing from your system.
    - Installation request for alcaeus/mongo-php-adapter ^1.1 -> satisfiable by alcaeus/mongo-php-adapter[1.1.0, 1.1.1, 1.1.2, 1.1.3, 1.1.4, 1.1.5, 1.1.x-dev].

I think it shouldn't be necessary to have installed mongodb extension in order to develop this package. What is it exactly required for?

[alcaeus]

Because of the tests: they need to import ODM classes. You could remove the dependency, skip the tests if ODM isn’t installed and only install it on travis. However, as changing something might break ODM functionality, I would recommend to keep this as is. This extension is supposed to cover ORM and ODM, so it’s expected to have both as a dev dependency.

[ondrejmirtes]

Is it just because of some use or ::class or is actually some code from alcaeus/mongo-php-adapter executed?

[mcfedr]

All the tests run fine if I remove alcaeus/mongo-php-adapter from composer.json, and without mongodb installed

[alcaeus]

All the tests run fine if I remove alcaeus/mongo-php-adapter from composer.json, and without mongodb installed

Correct, because you're pretending that the mongo extension is installed. You can skip the adapter package until you actually start using the ODM classes, at which point they'll fail if they can't find the classes you pretend are there.

[ondrejmirtes]

Superceded by #48.