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|
Feature: exclusive cassette
VCR allows cassettes to be nested. This is particularly useful in
a context like cucumber, where you may be using a cassette for an
entire scenario, and also using a cassette within a particular step
definition.
By default, both the inner and outer cassettes are active. On each
request, VCR will look for a matching HTTP interaction in the inner
cassette, and it will use the outer cassette as a fall back if none
can be found.
If you do not want the HTTP interactions of the outer cassette considered,
you can pass the `:exclusive` option, so that the inner cassette is
used exclusively.
Background:
Given a previously recorded cassette file "cassettes/outer.yml" with:
"""
---
http_interactions:
- request:
method: get
uri: http://localhost/outer
body:
encoding: UTF-8
string: ""
headers: {}
response:
status:
code: 200
message: OK
headers:
Content-Length:
- "18"
body:
encoding: UTF-8
string: Old outer response
http_version: "1.1"
recorded_at: Tue, 01 Nov 2011 04:58:44 GMT
recorded_with: VCR 2.0.0
"""
And a previously recorded cassette file "cassettes/inner.yml" with:
"""
---
http_interactions:
- request:
method: get
uri: http://localhost/inner
body:
encoding: UTF-8
string: ""
headers: {}
response:
status:
code: 200
message: OK
headers:
Content-Length:
- "18"
body:
encoding: UTF-8
string: Old inner response
http_version: "1.1"
recorded_at: Tue, 01 Nov 2011 04:58:44 GMT
recorded_with: VCR 2.0.0
"""
And a file named "setup.rb" with:
"""ruby
include_http_adapter_for("net/http")
$server = start_sinatra_app do
get('/:path') { "New #{params[:path]} response" }
end
require 'vcr'
VCR.configure do |c|
c.hook_into :webmock
c.cassette_library_dir = 'cassettes'
c.default_cassette_options = {
:record => :new_episodes,
:match_requests_on => [:method, :host, :path]
}
end
"""
Scenario: Cassettes are not exclusive by default
Given a file named "not_exclusive.rb" with:
"""ruby
require 'setup'
VCR.use_cassette('outer') do
VCR.use_cassette('inner') do
puts response_body_for(:get, "http://localhost:#{$server.port}/outer")
puts response_body_for(:get, "http://localhost:#{$server.port}/inner")
end
end
"""
When I run `ruby not_exclusive.rb`
Then it should pass with:
"""
Old outer response
Old inner response
"""
Scenario: Use an exclusive cassette
Given a file named "exclusive.rb" with:
"""ruby
require 'setup'
VCR.use_cassette('outer') do
VCR.use_cassette('inner', :exclusive => true) do
puts response_body_for(:get, "http://localhost:#{$server.port}/outer")
puts response_body_for(:get, "http://localhost:#{$server.port}/inner")
end
end
"""
When I run `ruby exclusive.rb`
Then it should pass with:
"""
New outer response
Old inner response
"""
And the file "cassettes/inner.yml" should contain "New outer response"
|
