Question 1

How to allow real HTTP connections in some tests with webmock.cr?

Accepted Answer

Set WebMock.allow_net_connect = true to permit unregistered requests, but use it cautiously to avoid breaking test isolation. This is shown in the README for cases where real network calls are needed.

Question 2

How to mock different HTTP status codes using webmock.cr?

Accepted Answer

Use the to_return method with a status parameter, like WebMock.stub(...).to_return(status: 500), as illustrated in the example returning a 500 status for POST requests.

Question 3

webmock.cr vs the Ruby webmock gem: what's the difference?

Accepted Answer

webmock.cr is a partial port for Crystal with similar syntax but fewer features, as noted in the 'Todo' section. It's ideal for Crystal projects, while Ruby projects should use the original gem for full functionality.

Question 4

How to reset stubs automatically in Crystal Spec tests?

Accepted Answer

Add Spec.before_each &->WebMock.reset in your spec setup to clear stubs before each test, ensuring isolated test scenarios without manual intervention.

Question 5

Can webmock.cr handle query string parameters in mocked requests?

Accepted Answer

Yes, use the with(query: {...}) method to match query strings, as demonstrated in the README example with parameters like page=1 and count=10.

Question 6

How to create dynamic responses based on request data in webmock.cr?

Accepted Answer

Pass a block to to_return that receives the HTTP::Request, allowing you to customize the response, like reversing the body or setting headers dynamically, shown in the block example.

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