Project: Vcr 1.7.2

Publisher: VCR

Automatic Re-recording

Over time, your cassettes may get out-of-date. APIs change and sites you
scrape get updated. VCR provides a facility to automatically re-record your
cassettes. Enable re-recording using the :re_record_interval option.

The value provided should be an interval (expressed in seconds) that
determines how often VCR will re-record the cassette. When a cassette
is used, VCR checks the file modification time; if more time than the
interval has passed, VCR will use the :all record mode to cause it be
re-recorded.

Background

Given

a previously recorded cassette file "cassettes/example.yml" with:

--- 
- !ruby/struct:VCR::HTTPInteraction 
  request: !ruby/struct:VCR::Request 
    method: :get
    uri: http://localhost:7777/
    body: 
    headers: 
  response: !ruby/struct:VCR::Response 
    status: !ruby/struct:VCR::ResponseStatus 
      code: 200
      message: OK
    headers: 
      content-length: 
      - "12"
    body: Old Response
    http_version: "1.1"

And

a file named "re_record.rb" with:

require 'vcr_cucumber_helpers'

start_sinatra_app(:port => 7777) do
  get('/') { 'New Response' }
end

require 'vcr'

VCR.config do |c|
  c.stub_with :fakeweb
  c.cassette_library_dir = 'cassettes'
end

VCR.use_cassette('example', :record => :new_episodes, :re_record_interval => 7.days) do
  puts Net::HTTP.get_response('localhost', '/', 7777).body
end

Scenarios

Cassette is not re-recorded when not enough time has passed

Given: 6 days have passed since the cassette was recorded
When: I run "ruby re_record.rb"
Then: the output should contain "Old Response"
But: the output should not contain "New Response"
And: the file "cassettes/example.yml" should contain "body: Old Response"
But: the file "cassettes/example.yml" should not contain "body: New Response"

Cassette is re-recorded when enough time has passed

Given: 8 days have passed since the cassette was recorded
When: I run "ruby re_record.rb"
Then: the output should contain "New Response"
But: the output should not contain "Old Response"
And: the file "cassettes/example.yml" should contain "body: New Response"
But: the file "cassettes/example.yml" should not contain "body: Old Response"

Last published about 6 years ago by myronmarston.

Automatic Re-recording

Vcr settings