Implement isDate predicate

[jcamiel]

Since 3.0.0, dates are first type citizen in Hurl format. As there are isFloat, isInteger, isString, isCollection predicates, we could add isDate:

GET https://example.org
HTTP 200
[Asserts]
certificate "Expire-Date" isDate == true

[guilherme-puida]

I'd like to work on this if there isn't anyone else currently implementing this :^)

[jcamiel]

Hi @guilherme-puida you can work on it if you want, there is nobody for the moment! We've a contributing guide to help you start if you want, and also some documentation on how we test Hurl. Don't hesitate to give us feebacks on the source code, onboarding on the project etc... Thanks for your help!

[guilherme-puida]

GET https://example.org
HTTP 200
[Asserts]
certificate "Expire-Date" isDate == true

Is this correct? Looking at the isInteger/... docs I assumed it would be just certificate "Expire-Date" isDate (without the == true).

[jcamiel]

No you're right, it's just isDate!

GET https://example.org
HTTP 200
[Asserts]
certificate "Expire-Date" isDate