Improve commit status API specs (refactoring)

spec/requests/api/commit_status_spec.rb

@@ -11,6 +11,8 @@ describe API::CommitStatus, api: true do
   let(:developer) { create_user(ProjectMember::DEVELOPER) }
 
   describe "GET /projects/:id/repository/commits/:sha/statuses" do
+    let(:get_url) { "/projects/#{project.id}/repository/commits/#{commit.id}/statuses" }
+
     context 'ci commit exists' do
       let!(:ci_commit) { project.ensure_ci_commit(commit.id) }
 
@@ -46,46 +48,56 @@ describe API::CommitStatus, api: true do
           create(:commit_status, commit: ci_commit, status: 'success')
         end
 
-        it "should return latest commit statuses" do
-          get api("/projects/#{project.id}/repository/commits/#{commit.id}/statuses", reporter)
-          expect(response.status).to eq(200)
+        context 'latest commit statuses' do
+          before { get api(get_url, reporter) }
+
+          it 'returns latest commit statuses' do
+            expect(response.status).to eq(200)
 
-          expect(json_response).to be_an Array
-          expect(statuses_id).to contain_exactly(status3.id, status4.id, status5.id, status6.id)
-          json_response.sort_by!{ |status| status['id'] }
-          expect(json_response.map{ |status| status['allow_failure'] }).to eq([true, false, false, false])
+            expect(json_response).to be_an Array
+            expect(statuses_id).to contain_exactly(status3.id, status4.id, status5.id, status6.id)
+            json_response.sort_by!{ |status| status['id'] }
+            expect(json_response.map{ |status| status['allow_failure'] }).to eq([true, false, false, false])
+          end
         end
 
-        it "should return all commit statuses" do
-          get api("/projects/#{project.id}/repository/commits/#{commit.id}/statuses?all=1", reporter)
-          expect(response.status).to eq(200)
+        context 'all commit statuses' do
+          before { get api(get_url, reporter), all: 1 }
+
+          it 'returns all commit statuses' do
+            expect(response.status).to eq(200)
 
-          expect(json_response).to be_an Array
-          expect(statuses_id).to contain_exactly(status1.id, status2.id, status3.id, status4.id, status5.id, status6.id)
+            expect(json_response).to be_an Array
+            expect(statuses_id).to contain_exactly(status1.id, status2.id, status3.id, status4.id, status5.id, status6.id)
+          end
         end
 
-        it "should return latest commit statuses for specific ref" do
-          get api("/projects/#{project.id}/repository/commits/#{commit.id}/statuses?ref=develop", reporter)
-          expect(response.status).to eq(200)
+        context 'latest commit statuses for specific ref' do
+          before { get api(get_url, reporter), ref: 'develop' }
 
-          expect(json_response).to be_an Array
-          expect(statuses_id).to contain_exactly(status3.id, status5.id)
+          it 'returns latest commit statuses for specific ref' do
+            expect(response.status).to eq(200)
+
+            expect(json_response).to be_an Array
+            expect(statuses_id).to contain_exactly(status3.id, status5.id)
+          end
         end
 
-        it "should return latest commit statuses for specific name" do
-          get api("/projects/#{project.id}/repository/commits/#{commit.id}/statuses?name=coverage", reporter)
-          expect(response.status).to eq(200)
+        context 'latest commit statues for specific name' do
+          before { get api(get_url, reporter), name: 'coverage' }
+
+          it 'return latest commit statuses for specific name' do
+            expect(response.status).to eq(200)
 
-          expect(json_response).to be_an Array
-          expect(statuses_id).to contain_exactly(status3.id, status4.id)
+            expect(json_response).to be_an Array
+            expect(statuses_id).to contain_exactly(status3.id, status4.id)
+          end
         end
       end
     end
 
     context 'ci commit does not exist' do
-      before do
-        get api("/projects/#{project.id}/repository/commits/#{commit.id}/statuses", reporter)
-      end
+      before { get api(get_url, reporter) }
 
       it 'returns empty array' do
         expect(response.status).to eq 200
@@ -95,15 +107,17 @@ describe API::CommitStatus, api: true do
     end
 
     context "guest user" do
+      before { get api(get_url, guest) }
+
       it "should not return project commits" do
-        get api("/projects/#{project.id}/repository/commits/#{commit.id}/statuses", guest)
         expect(response.status).to eq(403)
       end
     end
 
     context "unauthorized user" do
+      before { get api(get_url) }
+
       it "should not return project commits" do
-        get api("/projects/#{project.id}/repository/commits/#{commit.id}/statuses")
         expect(response.status).to eq(401)
       end
     end
@@ -113,9 +127,10 @@ describe API::CommitStatus, api: true do
     let(:post_url) { "/projects/#{project.id}/statuses/#{commit.id}" }
 
     context 'developer user' do
-      context 'should create commit status' do
-        it 'with only required parameters' do
-          post api(post_url, developer), state: 'success'
+      context 'only required parameters' do
+        before { post api(post_url, developer), state: 'success' }
+
+        it 'creates commit status' do
           expect(response.status).to eq(201)
           expect(json_response['sha']).to eq(commit.id)
           expect(json_response['status']).to eq('success')
@@ -124,9 +139,17 @@ describe API::CommitStatus, api: true do
           expect(json_response['target_url']).to be_nil
           expect(json_response['description']).to be_nil
         end
+      end
+
+      context 'with all optional parameters' do
+        before do
+          optional_params = { state: 'success', context: 'coverage',
+                              ref: 'develop', target_url: 'url', description: 'test' }
+
+          post api(post_url, developer), optional_params
+        end
 
-        it 'with all optional parameters' do
-          post api(post_url, developer), state: 'success', context: 'coverage', ref: 'develop', target_url: 'url', description: 'test'
+        it 'creates commit status' do
           expect(response.status).to eq(201)
           expect(json_response['sha']).to eq(commit.id)
           expect(json_response['status']).to eq('success')
@@ -137,41 +160,53 @@ describe API::CommitStatus, api: true do
         end
       end
 
-      context 'should not create commit status' do
-        it 'with invalid state' do
-          post api(post_url, developer), state: 'invalid'
+      context 'invalid status' do
+        before { post api(post_url, developer), state: 'invalid' }
+
+        it 'does not create commit status' do
           expect(response.status).to eq(400)
         end
+      end
+
+      context 'request without state' do
+        before { post api(post_url, developer) }
 
-        it 'without state' do
-          post api(post_url, developer)
+        it 'does not create commit status' do
           expect(response.status).to eq(400)
         end
+      end
 
-        it 'invalid commit' do
+      context 'invalid commit' do
+        before do
           post api("/projects/#{project.id}/statuses/invalid_sha", developer), state: 'running'
+        end
+
+        it 'returns not found error' do
           expect(response.status).to eq(404)
         end
       end
     end
 
     context 'reporter user' do
+      before { post api(post_url, reporter) }
+
       it 'should not create commit status' do
-        post api(post_url, reporter)
         expect(response.status).to eq(403)
       end
     end
 
     context 'guest user' do
+      before { post api(post_url, guest) }
+
       it 'should not create commit status' do
-        post api(post_url, guest)
         expect(response.status).to eq(403)
       end
     end
 
     context 'unauthorized user' do
+      before { post api(post_url) }
+
       it 'should not create commit status' do
-        post api(post_url)
         expect(response.status).to eq(401)
       end
     end