1 files changed, 70 insertions, 0 deletions
diff --git a/spec/requests/api/graphql/mutations/environments/update_spec.rb b/spec/requests/api/graphql/mutations/environments/update_spec.rb
new file mode 100644
index 00000000000..9c68b3a024c
--- /dev/null
+++ b/spec/requests/api/graphql/mutations/environments/update_spec.rb
@@ -0,0 +1,70 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe 'Update Environment', feature_category: :deployment_management do
+  include GraphqlHelpers
+
+  let_it_be(:project) { create(:project, :repository) }
+  let_it_be(:environment) { create(:environment, project: project) }
+  let_it_be(:maintainer) { create(:user).tap { |u| project.add_maintainer(u) } }
+  let_it_be(:developer) { create(:user).tap { |u| project.add_maintainer(u) } }
+
+  let(:environment_id) { environment.to_global_id.to_s }
+  let(:current_user) { developer }
+
+  let(:mutation) do
+    graphql_mutation(:environment_update, input)
+  end
+
+  context 'when updating external URL' do
+    let(:input) do
+      {
+        id: environment_id,
+        external_url: 'https://gitlab.com/'
+      }
+    end
+
+    it 'updates successfully' do
+      expect do
+        post_graphql_mutation(mutation, current_user: current_user)
+      end.to change { environment.reload.external_url }.to('https://gitlab.com/')
+
+      expect(graphql_mutation_response(:environment_update)['errors']).to be_empty
+    end
+
+    context 'when url is invalid' do
+      let(:input) do
+        {
+          id: environment_id,
+          external_url: 'http://${URL}'
+        }
+      end
+
+      it 'returns error' do
+        expect do
+          post_graphql_mutation(mutation, current_user: current_user)
+        end.not_to change { environment.reload.external_url }
+
+        expect(graphql_mutation_response(:environment_update)['errors'].first).to include('URI is invalid')
+      end
+    end
+  end
+
+  context 'when updating tier' do
+    let(:input) do
+      {
+        id: environment_id,
+        tier: 'STAGING'
+      }
+    end
+
+    it 'updates successfully' do
+      expect do
+        post_graphql_mutation(mutation, current_user: current_user)
+      end.to change { environment.reload.tier }.to('staging')
+
+      expect(graphql_mutation_response(:environment_update)['errors']).to be_empty
+    end
+  end
+end