Fix errors and grammar

lib/api/lint.rb

@@ -9,24 +9,21 @@ module API
       post do
         response = {
           status: '',
-          errors: [],
+          error: [],
           jobs: []
         }
 
-        if !Ci::GitlabCiYamlProcessor.errors(@content).nil?
-          status 200
-          response[:errors].push(Ci::GitlabCiYamlProcessor.errors(@content))
-          response[:status] = 'invalid'
-
-          response
-        end
-
+        if Ci::GitlabCiYamlProcessor.errors(params[:content]).nil?
           config_processor = Ci::GitlabCiYamlProcessor.new(params[:content])
 
           config_processor.builds.each do |build|
             response[:jobs].push("#{build[:name]}")
             response[:status] = 'valid'
           end
+        else
+          response[:error].push(Ci::GitlabCiYamlProcessor.errors(params[:content]))
+          response[:status] = 'invalid'
+        end
 
         status 200
         response

spec/lib/ci/gitlab_ci_yaml_processor_spec.rb

@@ -1251,19 +1251,19 @@ EOT
       end
     end
 
-    describe "#errors(content)" do
+    describe "#errors" do
       describe "Error handling" do
-        it "returns error if parse YAML failed" do
+        it "returns an error if the YAML could not be parsed" do
           content = YAML.dump("invalid: yaml: test")
           expect(GitlabCiYamlProcessor.errors(content)).to eq "Invalid configuration format"
         end
 
-        it "returns errors if tags parameter is invalid" do
+        it "returns an error if the tags parameter is invalid" do
           content = YAML.dump({ rspec: { script: "test", tags: "mysql" } })
           expect(GitlabCiYamlProcessor.errors(content)).to eq "jobs:rspec tags should be an array of strings"
         end
 
-        it "does not return errors" do
+        it "does not return any errors when the YAML is valid" do
           content = File.read(Rails.root.join('spec/support/gitlab_stubs/gitlab_ci.yml'))
           expect(GitlabCiYamlProcessor.errors(content)).to eq nil
         end

spec/requests/api/lint_spec.rb

@@ -9,7 +9,7 @@ describe API::API do
 
   describe 'POST /lint' do
     context 'with valid .gitlab-ci.yaml content' do
-      it 'validates content' do
+      it 'validates the content' do
         post api('/lint'), { content: yaml_content }
 
         expect(response).to have_http_status(200)
@@ -18,29 +18,30 @@ describe API::API do
       end
     end
 
-    context 'with invalid .gitlab_ci.yml' do
-      it 'validates content and shows correct errors' do
+    context 'with an invalid .gitlab_ci.yml' do
+      it 'validates the content and shows an error message' do
         post api('/lint'), { content: 'invalid content' }
 
         expect(response).to have_http_status(200)
         expect(json_response['status']).to eq('invalid')
-        expect(json_response['errors']).to eq(['Invalid configuration format'])
+        expect(json_response['error']).to eq(['Invalid configuration format'])
       end
 
-      it "validates content and shows configuration error" do
+      it "validates the content and shows a configuration error" do
         post api('/lint'), { content: '{ image: "ruby:2.1",  services: ["postgres"] }' }
 
         expect(response).to have_http_status(200)
         expect(json_response['status']).to eq('invalid')
-        expect(json_response['errors']).to eq(['jobs config should contain at least one visible job'])
+        expect(json_response['error']).to eq(['jobs config should contain at least one visible job'])
       end
     end
 
-    context 'no content parameters' do
-      it 'shows error message' do
+    context 'without the content parameter' do
+      it 'shows an error message' do
         post api('/lint')
 
         expect(response).to have_http_status(400)
+        expect(json_response['error']).to eq('content is missing')
       end
     end
   end