1 files changed, 44 insertions, 0 deletions
diff --git a/spec/graphql/mutations/todos/create_spec.rb b/spec/graphql/mutations/todos/create_spec.rb
new file mode 100644
index 00000000000..bbb033e2f33
--- /dev/null
+++ b/spec/graphql/mutations/todos/create_spec.rb
@@ -0,0 +1,44 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe Mutations::Todos::Create do
+  include GraphqlHelpers
+  include DesignManagementTestHelpers
+
+  describe '#resolve' do
+    context 'when target does not support todos' do
+      it 'raises error' do
+        current_user = create(:user)
+        mutation = described_class.new(object: nil, context: { current_user: current_user }, field: nil)
+
+        target = create(:milestone)
+
+        expect { mutation.resolve(target_id: global_id_of(target)) }
+          .to raise_error(GraphQL::CoercionError)
+      end
+    end
+
+    context 'with issue as target' do
+      it_behaves_like 'create todo mutation' do
+        let_it_be(:target) { create(:issue) }
+      end
+    end
+
+    context 'with merge request as target' do
+      it_behaves_like 'create todo mutation' do
+        let_it_be(:target) { create(:merge_request) }
+      end
+    end
+
+    context 'with design as target' do
+      before do
+        enable_design_management
+      end
+
+      it_behaves_like 'create todo mutation' do
+        let_it_be(:target) { create(:design) }
+      end
+    end
+  end
+end