Add method validation for requests

[artem-zakharchenko]

I suggest to consider adding method field validation of requests.

Why

At the moment we don't validate the method field (at least explicitly). Migrating toward more readable validation result Object that is being evolved with validation results of each field, it appears that explicit method validation would be beneficial.

How

1. Add the method field on validateRequest function.
2. Use strings comparison for validation.

[honzajavorek]

This is probably because Gavel is driven by the needs in Dredd and Apiary Mock/Proxy Server, where it's basically impossible to get mismatch in method. But it makes sense, from a more general point of view.

Ideally, we would describe the behavior using the .feature files first and then implement it.

[artem-zakharchenko]

The behavior of this feature will be described in gavel-spec and once released, implemented in gavel.

[ApiaryBot]

🎉 This issue has been resolved in version 6.0.0 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

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