Check if jira project key has been provided

app/controllers/projects/import/jira_controller.rb

@@ -22,8 +22,14 @@ module Projects
       end
 
       def import
-        response = ::JiraImport::StartImportService.new(current_user, @project, jira_import_params[:jira_project_key]).execute
-        flash[:notice] = response.message if response.message.present?
+        jira_project_key = jira_import_params[:jira_project_key]
+
+        if jira_project_key.present?
+          response = ::JiraImport::StartImportService.new(current_user, @project, jira_project_key).execute
+          flash[:notice] = response.message if response.message.present?
+        else
+          flash[:alert] = 'No jira project key has been provided.'
+        end
 
         redirect_to project_import_jira_path(@project)
       end

spec/controllers/projects/import/jira_controller_spec.rb

@@ -93,18 +93,29 @@ describe Projects::Import::JiraController do
           end
 
           context 'post import' do
-            it 'creates import state' do
-              expect(project.import_state).to be_nil
+            context 'when jira project key is empty' do
+              it 'redirects back to show with an error' do
+                post :import, params: { namespace_id: project.namespace, project_id: project, jira_project_key: '' }
 
-              post :import, params: { namespace_id: project.namespace, project_id: project, jira_project_key: 'Test' }
+                expect(response).to redirect_to(project_import_jira_path(project))
+                expect(flash[:alert]).to eq('No jira project key has been provided.')
+              end
+            end
 
-              project.reload
+            context 'when everything is ok' do
+              it 'creates import state' do
+                expect(project.import_state).to be_nil
 
-              jira_project = project.import_data.data.dig('jira', 'projects').first
-              expect(project.import_type).to eq 'jira'
-              expect(project.import_state.status).to eq 'scheduled'
-              expect(jira_project['key']).to eq 'Test'
-              expect(response).to redirect_to(project_import_jira_path(project))
+                post :import, params: { namespace_id: project.namespace, project_id: project, jira_project_key: 'Test' }
+
+                project.reload
+
+                jira_project = project.import_data.data.dig('jira', 'projects').first
+                expect(project.import_type).to eq 'jira'
+                expect(project.import_state.status).to eq 'scheduled'
+                expect(jira_project['key']).to eq 'Test'
+                expect(response).to redirect_to(project_import_jira_path(project))
+              end
             end
           end
         end