Add test support for @RequestMapping(path = "/"). Fixes gh-387.

[calaroche]

No description provided.

[pivotal-issuemaster]

@calaroche Please sign the Contributor License Agreement!

Click here to manually synchronize the status of this Pull Request.

See the FAQ for frequently asked questions.

[pivotal-issuemaster]

@calaroche Thank you for signing the Contributor License Agreement!

[codecov]

Codecov Report

Merging #409 into 2.2.x will increase coverage by 0.11%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##              2.2.x     #409      +/-   ##
============================================
+ Coverage     79.02%   79.13%   +0.11%     
- Complexity      444      445       +1     
============================================
  Files            59       59              
  Lines          1740     1740              
  Branches        244      244              
============================================
+ Hits           1375     1377       +2     
+ Misses          257      256       -1     
+ Partials        108      107       -1     

Impacted Files	Coverage Δ	Complexity Δ
...ork/cloud/openfeign/support/SpringMvcContract.java	87.63% <0.00%> (+1.07%)	55.00% <0.00%> (+1.00%)

[OlgaMaciaszek]

Thanks, @calaroche. Will review this tomorrow.

[OlgaMaciaszek]

Thanks @calaroche In general, these tests are good and can be added anyway, they do not verify that issue. When you check out a commit before the fix (for example, d3da7e1), add these tests there and run them against that commit, they still pass. For this task, we will need to add a test that will fail against that commit and, therefore, reproduce the issue.