Fixed documentation, corrected syntax, and added test scenario for Approvals API

doc/api/merge_requests.md

@@ -498,8 +498,10 @@ GET /projects/:id/merge_requests/:merge_request_id/approvals
 
 **Parameters:**
 
-- id (required)                         - The ID of a project
-- merge_request_id (required)           - ID of MR
+| Attribute          | Type    | Required | Description         |
+|--------------------|---------|----------|---------------------|
+| `id`               | integer | yes      | The ID of a project |
+| `merge_request_id` | integer | yes      | The ID of MR        |
 
 ```json
 {
@@ -542,8 +544,10 @@ POST /projects/:id/merge_requests/:merge_request_id/approvals
 
 **Parameters:**
 
-- id (required)                         - The ID of a project
-- merge_request_id (required)           - ID of MR
+| Attribute          | Type    | Required | Description         |
+|--------------------|---------|----------|---------------------|
+| `id`               | integer | yes      | The ID of a project |
+| `merge_request_id` | integer | yes      | The ID of MR        |
 
 ```json
 {

lib/api/entities.rb

@@ -222,12 +222,8 @@ module API
 
     class MergeRequestApprovals < ProjectEntity
       expose :merge_status
-      expose :approvals_required do |merge_request, _|
-        merge_request.approvals_required
-      end
-      expose :approvals_missing do |merge_request, _|
-        merge_request.approvals_left
-      end
+      expose :approvals_required
+      expose :approvals_left
       expose :approvals, as: :approved_by, using: Entities::Approvals
     end
 

lib/api/merge_requests.rb

@@ -334,6 +334,7 @@ module API
         end
 
         # Get the status of the merge request's approvals
+        #
         # Parameters:
         #   id (required)                 - The ID of a project
         #   merge_request_id (required)   - ID of MR
@@ -348,6 +349,7 @@ module API
         end
 
         # Approve a merge request
+        #
         # Parameters:
         #   id (required)                 - The ID of a project
         #   merge_request_id (required)   - ID of MR
@@ -359,9 +361,9 @@ module API
 
           unauthorized! unless merge_request.can_approve?(current_user)
 
-          ::MergeRequests::ApprovalService.
-            new(user_project, current_user).
-            execute(merge_request)
+          ::MergeRequests::ApprovalService
+            .new(user_project, current_user)
+            .execute(merge_request)
 
           present merge_request, with: Entities::MergeRequestApprovals, current_user: current_user
         end

spec/requests/api/merge_requests_spec.rb

@@ -616,7 +616,8 @@ describe API::API, api: true  do
       post api("/projects/#{project.id}/merge_requests/#{merge_request.id}/approve", user)
 
       expect(response.status).to eq(201)
-      expect(json_response['approvals_required']).to eq 1
+      expect(json_response['approvals_left']).to eq(1)
+      expect(json_response['approved_by'][0]['user']['username']).to eq(user.username)
     end
   end