Make settings as a clean architecture

test/content/usecases/SettingUseCaase.test.ts

@@ -0,0 +1,71 @@
+import SettingRepository from '../../../src/content/repositories/SettingRepository';
+import SettingClient from '../../../src/content/client/SettingClient';
+import SettingUseCase from '../../../src/content/usecases/SettingUseCase';
+import Settings, { DefaultSetting } from '../../../src/shared/Settings';
+import { expect } from 'chai';
+
+class MockSettingRepository implements SettingRepository {
+  private current: Settings;
+
+  constructor() {
+    this.current = DefaultSetting;
+  }
+
+  set(settings: Settings): void {
+    this.current= settings;
+  }
+
+  get(): Settings {
+    return this.current;
+  }
+}
+
+class MockSettingClient implements SettingClient {
+  private data: Settings;
+
+  constructor(data: Settings) {
+    this.data = data;
+  }
+
+  load(): Promise<Settings> {
+    return Promise.resolve(this.data);
+  }
+}
+
+describe('AddonEnabledUseCase', () => {
+  let repository: MockSettingRepository;
+  let client: MockSettingClient;
+  let sut: SettingUseCase;
+
+  beforeEach(() => {
+    let testSettings = {
+      keymaps: {},
+      search: {
+        default: 'google',
+        engines: {
+          google: 'https://google.com/?q={}',
+        }
+      },
+      properties: {
+        hintchars: 'abcd1234',
+        smoothscroll: false,
+        complete: 'sbh',
+      },
+      blacklist: [],
+    };
+
+    repository = new MockSettingRepository();
+    client = new MockSettingClient(testSettings);
+    sut = new SettingUseCase({ repository, client });
+  });
+
+  describe('#reload', () => {
+    it('loads settings and store to repository', async() => {
+      let settings = await sut.reload();
+      expect(settings.properties.hintchars).to.equal('abcd1234');
+
+      let saved = repository.get();
+      expect(saved.properties.hintchars).to.equal('abcd1234');
+    });
+  });
+});