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|
Feature: :once
The `:once` record mode will:
- Replay previously recorded interactions.
- Record new interactions if there is no cassette file.
- Cause an error to be raised for new requests if there is a cassette file.
It is similar to the `:new_episodes` record mode, but will prevent new,
unexpected requests from being made (i.e. because the request URI changed
or whatever).
`:once` is the default record mode, used when you do not set one.
Background:
Given a file named "setup.rb" with:
"""ruby
$server = start_sinatra_app do
get('/') { 'Hello' }
end
require 'vcr'
VCR.configure do |c|
c.hook_into :webmock
c.cassette_library_dir = 'cassettes'
end
"""
And a previously recorded cassette file "cassettes/example.yml" with:
"""
---
http_interactions:
- request:
method: get
uri: http://example.com/foo
body:
encoding: UTF-8
string: ""
headers: {}
response:
status:
code: 200
message: OK
headers:
Content-Length:
- "20"
body:
encoding: UTF-8
string: example.com response
http_version: "1.1"
recorded_at: Tue, 01 Nov 2011 04:58:44 GMT
recorded_with: VCR 2.0.0
"""
Scenario: Previously recorded responses are replayed
Given a file named "replay_recorded_response.rb" with:
"""ruby
require 'setup'
VCR.use_cassette('example', :record => :once) do
response = Net::HTTP.get_response('example.com', '/foo')
puts "Response: #{response.body}"
end
"""
When I run `ruby replay_recorded_response.rb`
Then it should pass with "Response: example.com response"
@exclude-jruby
Scenario: New requests result in an error when the cassette file exists
Given a file named "error_for_new_requests_when_cassette_exists.rb" with:
"""ruby
require 'setup'
VCR.use_cassette('example', :record => :once) do
response = Net::HTTP.get_response('localhost', '/', $server.port)
puts "Response: #{response.body}"
end
"""
When I run `ruby error_for_new_requests_when_cassette_exists.rb`
Then it should fail with "An HTTP request has been made that VCR does not know how to handle"
Scenario: New requests get recorded when there is no cassette file
Given a file named "record_new_requests.rb" with:
"""ruby
require 'setup'
VCR.use_cassette('example', :record => :once) do
response = Net::HTTP.get_response('localhost', '/', $server.port)
puts "Response: #{response.body}"
end
"""
When I remove the file "cassettes/example.yml"
And I run `ruby record_new_requests.rb`
Then it should pass with "Response: Hello"
And the file "cassettes/example.yml" should contain "Hello"
|
