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From "John Lewis (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HTTPCLIENT-1759) Contribute new tests that use the in-process HttpServer
Date Wed, 03 Aug 2016 18:24:20 GMT
John Lewis created HTTPCLIENT-1759:

             Summary: Contribute new tests that use the in-process HttpServer
                 Key: HTTPCLIENT-1759
                 URL: https://issues.apache.org/jira/browse/HTTPCLIENT-1759
             Project: HttpComponents HttpClient
          Issue Type: Test
          Components: HttpClient
    Affects Versions: 5.0 Alpha2
            Reporter: John Lewis
             Fix For: 5.0 Alpha2

Please accept this contribution of new tests that use the in-process HttpServer similar to
the way it is used with the LocalServerTestBase.  A special request handler is used to check
HTTP requests.  Before the request is sent, the request handler is told what to expect in
the request as far as headers, parameters, path, content type, and body are concerned.  The
handler checks the request against the expectations.  Then, the handler is also told what
response to return, and the response is checked when the HTTP client receives the response.

Every HTTP method is tested in this way.

The tests use a testing framework that is is designed to work with any HTTP client.  For instance
Groovy's HttpBuilder and RESTClient use the Apache HttpClient to make HTTP requests.  The
testing framework here can test the HttpBuilder and RESTClient as well as HttpClient.  There
just has to be an adapter for each HTTP client.  I have included one for Apache HttpClient5.

Since I would like to reuse the test framework for other projects, I have not put the framework
in the test area so it can potentially be used for any project that uses HttpClient to run
the same tests or create new tests.  Care has been taken to make sure no testing dependency
such as JUnit or EasyMock is used in the framework.

I used test-first development when creating this test framework.  So, I have submitted a lot
of tests which I put under the test area.

Usage.  Generally, the idea is that you specify a test with a set of List's and Map's.  If
you write the test with Groovy, it could look something like this:
          final HttpServerTestingFramework framework = new HttpServerTestingFramework(new

                              request: [
                                  path: '/stuff',
                                  query: [param : 'something'],
                                  headers: [header1:'stuff', header2:'more-stuff'],
                                  contentType: 'text/plain; charset=us-ascii',
                                  body: 'What is the meaning of life?',
                              response: [
                                  headers: [header3:'header_stuff',],
                                  contentType: 'text/html; charset=us-ascii',
                                  body: '<HTML>42</HTML>',
There is also a set of tests that are created by default that exercise all of the HTTP methods.
 If you don't want these tests to run, then just delete the tests after creating the framework:


You can see TestHttpServerTestingFramework.java to see how the framework is used to test HttpClient5.
 Especially the defaultTests() test:
    public void defaultTests() throws Exception {
        final HttpServerTestingAdapter adapter = new HttpClient5TestingAdapter();

        // create the framework without deleting the default tests.
        final HttpServerTestingFramework framework = new HttpServerTestingFramework();



I have submitted a patch file.  There are no changes to the existing HttpClient code.  All
files in the patch are new, and they do not interfere with the current functionality of HttpClient.
 I created a new package called org.apache.hc.client5.http.*testframework*.

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