To add a collaborator to this project you will need to use the Relish gem to add the collaborator via a terminal command. Soon you'll be able to also add collaborators here!
More about adding a collaboratorUpdate content_length header
When the :update_content_length_header
option is set to a truthy value,
VCR will ensure that the content-length
header will have the correct
value. This is useful in several situations:
- When you manually edit the cassette file and change the resonse body length. You can use this option so you don't have to manually calculate and update the body length.
- When you use ERB, the response body length may vary. This will ensure it is always correct.
- Syck, the default YAML engine for ruby 1.8 (and 1.9, unless you compile
it to use Psych), has a bug where it sometimes will remove some
whitespace strings when you serialize them. This may cause the
content-length
header to have the wrong value.
This is especially important when you use a client that checks the
content-length
header. Mechanize, for example, will raise an EOFError
when the header value does not match the actual body length.
- Background
-
- Given
-
a previously recorded cassette file "cassettes/example.yml" with:
--- - !ruby/struct:VCR::HTTPInteraction request: !ruby/struct:VCR::Request method: :get uri: http://example.com:80/ body: headers: response: !ruby/struct:VCR::Response status: !ruby/struct:VCR::ResponseStatus code: 200 message: OK headers: content-type: - text/html;charset=utf-8 content-length: - "11" body: Hello <modified> http_version: "1.1"
- And
-
a file named "common_stuff.rb" with:
require 'vcr' VCR.config do |c| c.cassette_library_dir = 'cassettes' c.stub_with :fakeweb end def make_request_and_print_results response = Net::HTTP.get_response('example.com', '/') puts "Body length: #{response.body.length}" puts "Header value: #{response['content-length']}" end
- Scenarios
-
- Default :update_content_length_header setting
- :update_content_length_header => false
- :update_content_length_header => true
- Default :update_content_length_header setting
-
- Given
-
a file named "default.rb" with:
require 'common_stuff' VCR.use_cassette('example') do make_request_and_print_results end
- When
-
I run
ruby default.rb
- Then
-
the output should contain:
Body length: 16 Header value: 11
- :update_content_length_header => false
-
- Given
-
a file named "false.rb" with:
require 'common_stuff' VCR.use_cassette('example', :update_content_length_header => false) do make_request_and_print_results end
- When
-
I run
ruby false.rb
- Then
-
the output should contain:
Body length: 16 Header value: 11
- :update_content_length_header => true
-
- Given
-
a file named "true.rb" with:
require 'common_stuff' VCR.use_cassette('example', :update_content_length_header => true) do make_request_and_print_results end
- When
-
I run
ruby true.rb
- Then
-
the output should contain:
Body length: 16 Header value: 16
Last published over 7 years ago by myronmarston.