Add PHP-matcher to contexts

[blazarecki]

Hi,

This PR is an exemple of what I would like to add in this project.

But first of all, I want to discuss on it with you.

The idea is to use https://github.com/coduo/php-matcher with the JsonContext (and maybe others).

Sometime, you cannot predict some values of a response. Things like, uuid, date ...
The idea is to do something like this:

// ...
        "city": {
            "@id": "@[email protected]('city/')",
            "@type": "City",
            "name": "Lille",
            "zipcode": "59000",
            "createdAt": "@[email protected]()",
            "updatedAt": "@[email protected]()",
        },
// ...

I see two differents way of doing it:

1. Update the behavior of assertSame and assertEquals methods of the Asserter.

Devs don't need to update there tests and can directly use it.
But we lost the meaning of the two methods of the Asserter.

2. Create specific steps like The JSON should match: :pystring and The JSON node should match :expression, ...

Devs need to update there tests to use it.
We keep the assertSame and assertEquals.

What do you think of it @sanpii ?

[sanpii]

Hi,

I dislike the notation I find illegible (it’s just my opinion) but many persons seems recalcitrant to use json schema and your proposal is more readable than #224.

I see two differents way of doing it:

I prefer a new step to prevent compatibility break.

[blazarecki]

Ok I'll do this.

[blazarecki]

Hi,

I just update the PR.
I add something to detect if your PHP version is compatible and suggest to install PHPMatcher.
If you want I can remove it if you plan to add this in the v4.

Tell me if I need to change something.

Thanks.

[thomasbisignani]

What is the status of this PR ?

I think it will be awesome to have PHP Matcher with the Behatch JsonContext.