How to use captures with Rspec?

[petrsigut]

Hi guys,

json_expressions are really cool! Thanks.

But I am unable to find out how to use "captures" with Rspec, is it possible?

The example shows how to use it with MiniTest:

matcher = assert_json_match pattern, server_response.body # Returns the Matcher object

You can use the captured values for other purposes
assert matcher.captures[:user_id] > 0

But In Rspec, if I use it like this:

matcher = response.body.should match_json_expression(pattern)

but matcher is "true"...

I also tried to get match_json_expression(pattern), this is JsonExpressions::RSpec::Matchers::MatchJsonExpression, but does not contain "captures" either.

So I included the require 'json_expressions/minitest' to be able to use the minitest

matcher = assert_json_match pattern, response.body

But is that right approach?

Thank you very much,
Petr

[martinos]

Is this solved? It seems that it would be really useful with rspec.

[petrsigut]

I am not longer on the project which was using it, so I don't know:( Sorry

[callahat]

If you're using the expect(response.body).to match_json_expression(pattern) syntax, it seems that pattern is modified with the captures. Ie, you can access it using pattern.captures[:user_id].