1 files changed, 81 insertions, 0 deletions
diff --git a/spec/requests/api/graphql/current_user_todos_spec.rb b/spec/requests/api/graphql/current_user_todos_spec.rb
new file mode 100644
index 00000000000..b657f15d0e9
--- /dev/null
+++ b/spec/requests/api/graphql/current_user_todos_spec.rb
@@ -0,0 +1,81 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe 'A Todoable that implements the CurrentUserTodos interface' do
+  include GraphqlHelpers
+
+  let_it_be(:current_user) { create(:user) }
+  let_it_be(:project) { create(:project, :public) }
+  let_it_be(:todoable) { create(:issue, project: project) }
+  let_it_be(:done_todo) { create(:todo, state: :done, target: todoable, user: current_user) }
+  let_it_be(:pending_todo) { create(:todo, state: :pending, target: todoable, user: current_user) }
+  let(:state) { 'null' }
+
+  let(:todoable_response) do
+    graphql_data_at(:project, :issue, :currentUserTodos, :nodes)
+  end
+
+  let(:query) do
+    <<~GQL
+      {
+        project(fullPath: "#{project.full_path}") {
+          issue(iid: "#{todoable.iid}") {
+            currentUserTodos(state: #{state}) {
+              nodes {
+                #{all_graphql_fields_for('Todo', max_depth: 1)}
+              }
+            }
+          }
+        }
+      }
+    GQL
+  end
+
+  it 'returns todos of the current user' do
+    post_graphql(query, current_user: current_user)
+
+    expect(todoable_response).to contain_exactly(
+      a_hash_including('id' => global_id_of(done_todo)),
+      a_hash_including('id' => global_id_of(pending_todo))
+    )
+  end
+
+  it 'does not return todos of another user', :aggregate_failures do
+    post_graphql(query, current_user: create(:user))
+
+    expect(response).to have_gitlab_http_status(:success)
+    expect(todoable_response).to be_empty
+  end
+
+  it 'does not error when there is no logged in user', :aggregate_failures do
+    post_graphql(query)
+
+    expect(response).to have_gitlab_http_status(:success)
+    expect(todoable_response).to be_empty
+  end
+
+  context 'when `state` argument is `pending`' do
+    let(:state) { 'pending' }
+
+    it 'returns just the pending todo' do
+      post_graphql(query, current_user: current_user)
+
+      expect(todoable_response).to contain_exactly(
+        a_hash_including('id' => global_id_of(pending_todo))
+      )
+    end
+  end
+
+  context 'when `state` argument is `done`' do
+    let(:state) { 'done' }
+
+    it 'returns just the done todo' do
+      post_graphql(query, current_user: current_user)
+
+      expect(todoable_response).to contain_exactly(
+        a_hash_including('id' => global_id_of(done_todo))
+      )
+    end
+  end
+end