Expose coverage on GET pipelines/:idzj-expose-coverage-pipelines

The coverage wasn't exposed yet, now it is but only for detailed
requests to save queries on the database.

3 files changed, 17 insertions, 0 deletions

diff --git a/changelogs/unreleased/zj-expose-coverage-pipelines.yml b/changelogs/unreleased/zj-expose-coverage-pipelines.yml
new file mode 100644
index 00000000000..34e4926e58a
--- /dev/null
+++ b/changelogs/unreleased/zj-expose-coverage-pipelines.yml
@@ -0,0 +1,4 @@
+---
+title: 'API: expose pipeline coverage'
+merge_request: 
+author: 
diff --git a/lib/api/entities.rb b/lib/api/entities.rb
index 33cb6fd3704..7dfaf2e8eb7 100644
--- a/lib/api/entities.rb
+++ b/lib/api/entities.rb
@@ -606,6 +606,7 @@ module API
       expose :user, with: Entities::UserBasic
       expose :created_at, :updated_at, :started_at, :finished_at, :committed_at
       expose :duration
+      expose :coverage
     end
 
     class EnvironmentBasic < Grape::Entity
diff --git a/spec/requests/api/pipelines_spec.rb b/spec/requests/api/pipelines_spec.rb
index d83f7883c78..a7e511aaeda 100644
--- a/spec/requests/api/pipelines_spec.rb
+++ b/spec/requests/api/pipelines_spec.rb
@@ -103,6 +103,18 @@ describe API::API, api: true do
         expect(json_response['message']).to eq '404 Not found'
         expect(json_response['id']).to be nil
       end
+
+      context 'with coverage' do
+        before do
+          create(:ci_build, coverage: 30, pipeline: pipeline)
+        end
+
+        it 'exposes the coverage' do
+          get api("/projects/#{project.id}/pipelines/#{pipeline.id}", user)
+
+          expect(json_response["coverage"].to_i).to eq(30)
+        end
+      end
     end
 
     context 'unauthorized user' do