Mark set/jump as a clean architecture

1 files changed, 107 insertions, 0 deletions

diff --git a/test/content/usecases/MarkUseCase.test.ts b/test/content/usecases/MarkUseCase.test.ts
new file mode 100644
index 0000000..4f2dee4
--- /dev/null
+++ b/test/content/usecases/MarkUseCase.test.ts
@@ -0,0 +1,107 @@
+import MarkRepository from '../../../src/content/repositories/MarkRepository';
+import MarkUseCase from '../../../src/content/usecases/MarkUseCase';
+import MarkClient from '../../../src/content/client/MarkClient';
+import MockConsoleClient from '../mock/MockConsoleClient';
+import MockScrollPresenter from '../mock/MockScrollPresenter';
+import Mark from '../../../src/content/domains/Mark';
+import { expect } from 'chai';
+
+class MockMarkRepository implements MarkRepository {
+  private current: {[key: string]: Mark};
+
+  constructor() {
+    this.current = {};
+  }
+
+  set(key: string, mark: Mark): void {
+    this.current[key] = mark;
+  }
+
+  get(key: string): Mark | null {
+    return this.current[key];
+  }
+}
+
+class MockMarkClient implements MarkClient {
+  public marks: {[key: string]: Mark};
+  public last: string;
+
+  constructor() {
+    this.marks = {};
+    this.last = '';
+  }
+
+  setGloablMark(key: string, mark: Mark): Promise<void> {
+    this.marks[key] = mark;
+    return Promise.resolve();
+  }
+
+  jumpGlobalMark(key: string): Promise<void> {
+    this.last = key
+    return Promise.resolve();
+  }
+}
+
+describe('MarkUseCase', () => {
+  let repository: MockMarkRepository;
+  let client: MockMarkClient;
+  let consoleClient: MockConsoleClient;
+  let scrollPresenter: MockScrollPresenter;
+  let sut: MarkUseCase;
+
+  beforeEach(() => {
+    repository = new MockMarkRepository();
+    client = new MockMarkClient();
+    consoleClient = new MockConsoleClient();
+    scrollPresenter = new MockScrollPresenter();
+    sut = new MarkUseCase({
+      repository, client, consoleClient, scrollPresenter,
+    });
+  });
+
+  describe('#set', () => {
+    it('sets local mark', async() => {
+      scrollPresenter.scrollTo(10, 20, false);
+
+      await sut.set('x');
+
+      expect(repository.get('x')).to.deep.equals({ x: 10, y: 20 });
+      expect(consoleClient.text).to.equal("Set local mark to 'x'");
+    });
+
+    it('sets global mark', async() => {
+      scrollPresenter.scrollTo(30, 40, false);
+
+      await sut.set('Z');
+
+      expect(client.marks['Z']).to.deep.equals({ x: 30, y: 40 });
+      expect(consoleClient.text).to.equal("Set global mark to 'Z'");
+    });
+  });
+
+  describe('#jump', () => {
+    it('jumps to local mark', async() => {
+      repository.set('x', { x: 20, y: 40 });
+
+      await sut.jump('x');
+
+      expect(scrollPresenter.getScroll()).to.deep.equals({ x: 20, y: 40 });
+    });
+
+    it('throws an error when no local marks', () => {
+      return sut.jump('a').then(() => {
+        throw new Error('error');
+      }).catch((e) => {
+        expect(e).to.be.instanceof(Error);
+      })
+    })
+
+    it('jumps to global mark', async() => {
+      client.marks['Z'] = { x: 20, y: 0 };
+
+      await sut.jump('Z');
+
+      expect(client.last).to.equal('Z')
+    });
+  });
+});