发布时间: 2022-10-25 03:01:00
refer to:
https://relishapp.com/vcr/vcr/v/6-1-0/docs/getting-started
VCR用来使用mock http request的。
使用方法很简单：
在 test/test_helper.rb 或者对应的rspec文件中：
require 'vcr' VCR.configure do |c| c.cassette_library_dir = 'vcr_cassettes' # 指定生成的yml 文件的路径 c.hook_into :webmock end
然后在unit test中，使用一个 block 就会自动使用了：
VCR.use_cassette('whatever cassette name you want') do
# the body of the test would go here...
# 例如
# response = HTTParty.get 'www.baidu.com'
# assert response.code == '200'
end
同时，会生成对应的 mock http response 文件，例如：
---
http_interactions:
- request:
method: get
uri: http://example.com/
body: ''
headers: {}
response:
status:
code: 200
message: OK
headers:
Content-Type:
- text/html;charset=utf-8
Content-Length:
- '26'
body: This is the response body
http_version: '1.1'
recorded_at: Tue, 01 Nov 2011 04:58:44 GMT
recorded_with: VCR 2.0.0
这个gem 很霸道，一旦使用的话， 就默认必须使用VCR block ，否则会报错。
================================================================================
An HTTP request has been made that VCR does not know how to handle:
POST http://localhost:xx/
Body: {"id":1,"jsonrpc":"2.0","method":"get_transaction","params":["0xed2049c21ffccfcd26281d60f8f77ff117adb9df9d3f8cbe5fe86e893c66d359"]}
VCR is currently using the following cassette:
- /mnt/xx/get_rejected_transaction.yml
- :record => :once
- :match_requests_on => [:method, :path, :body]
Under the current configuration VCR can not find a suitable HTTP interaction
to replay and is prevented from recording new requests. There are a few ways
you can deal with this:
* If you're surprised VCR is raising this error
and want insight about how VCR attempted to handle the request,
you can use the debug_logger configuration option to log more details [1].
* You can use the :new_episodes record mode to allow VCR to
record this new request to the existing cassette [2].
* If you want VCR to ignore this request (and others like it), you can
set an `ignore_request` callback [3].
* The current record mode (:once) does not allow new requests to be recorded
to a previously recorded cassette. You can delete the cassette file and re-run
your tests to allow the cassette to be recorded with this request [4].
* The cassette contains 2 HTTP interactions that have not been
played back. If your request is non-deterministic, you may need to
change your :match_requests_on cassette option to be more lenient
or use a custom request matcher to allow it to match [5].
解决办法很简单：
1. 要么使用VCR do ..end
2. 要么在VCR的配置文件中，增加ignore 选项，例如：
refer to: https://stackoverflow.com/questions/14885557/vcr-does-not-know-how-to-handle-this-request
c.ignore_request {|request| request.uri == 'https://accounts.google.com/o/oauth2/token' }
3. 如果还有报错，就检查 yml 文件， 参数有一个地方不对都会报错。例如，几乎所有的JSON RPC，都会有个参数id, 每次加1， 这样的话就不行了。
解决办法： 使用stub 来模拟让对应的方法每次都生成同样的id .
4 setup do 5 YourClass.any_instance.stubs(:generate_json_rpc_id).returns(1) 6 endBack