Project: Vcr 2.4.0

Publisher: VCR

Usage with RSpec metadata

VCR provides easy integration with RSpec using metadata. To set this
up, call configure_rspec_metadata! in your VCR.configure block.

Once you've done that, you can have an example group or example use
VCR by passing :vcr as an additional argument after the description
string. It will use set the cassette name based on the example's
full description.

If you need to override the cassette name or options, you can pass a
hash (:vcr => { ... }).

Background

Given

a file named "spec/spec_helper.rb" with:

require 'vcr'

VCR.configure do |c|
  c.cassette_library_dir = 'spec/cassettes'
  c.hook_into :fakeweb
  c.configure_rspec_metadata!
end

RSpec.configure do |c|
  # so we can use :vcr rather than :vcr => true;
  # in RSpec 3 this will no longer be necessary.
  c.treat_symbols_as_metadata_keys_with_true_values = true
end

Scenarios

Use `:vcr` metadata

Given

a file named "spec/vcr_example_spec.rb" with:

start_sinatra_app(:port => 7777) do
  get('/') { "Hello" }
end

def make_http_request
  Net::HTTP.get_response('localhost', '/', 7777).body
end

require 'spec_helper'

describe "VCR example group metadata", :vcr do
  it 'records an http request' do
    make_http_request.should == 'Hello'
  end

  it 'records another http request' do
    make_http_request.should == 'Hello'
  end

  context 'in a nested example group' do
    it 'records another one' do
      make_http_request.should == 'Hello'
    end
  end
end

describe "VCR example metadata" do
  it 'records an http request', :vcr do
    make_http_request.should == 'Hello'
  end
end

When

I run rspec spec/vcr_example_spec.rb

Then

it should pass with "4 examples, 0 failures"

And

the file "spec/cassettes/VCR_example_group_metadata/records_an_http_request.yml" should contain "Hello"

And

the file "spec/cassettes/VCR_example_group_metadata/records_another_http_request.yml" should contain "Hello"

And

the file "spec/cassettes/VCR_example_group_metadata/in_a_nested_example_group/records_another_one.yml" should contain "Hello"

And

the file "spec/cassettes/VCR_example_metadata/records_an_http_request.yml" should contain "Hello"

Pass a hash to set the cassette options

Given

a file named "spec/vcr_example_spec.rb" with:

require 'spec_helper'

vcr_options = { :cassette_name => "example", :record => :new_episodes }
describe "Using an options hash", :vcr => vcr_options do
  it 'uses the provided cassette name' do
    VCR.current_cassette.name.should == "example"
  end

  it 'sets the given options' do
    VCR.current_cassette.record_mode.should == :new_episodes
  end
end

When

I run rspec spec/vcr_example_spec.rb

Then

it should pass with "2 examples, 0 failures"

Last published about 6 years ago by myronmarston.

Usage with RSpec metadata

Vcr settings