fetchAllTipsの追加

src/domains/tips.test.ts

@@ -1,4 +1,4 @@
-import { addTips, TipsRepositoryPort } from "./tips";
+import { addTips, TipsRepositoryPort, TipsPort, fetchAllTips } from "./tips";
 
 describe("addTips", () => {
   test("IDが生成されて、saveされる", () => {
@@ -14,3 +14,28 @@ describe("addTips", () => {
     expect(save.mock.calls[0][1]).toBe("fugafuga");
   });
 });
+
+describe("fetchAllTips", () => {
+  test("すべてのTipsを取得してTipsPortにセットする", async () => {
+    const expectValue = [{
+      id: "hoge",
+      message: "fuga"
+    }];
+    const findAll = jest.fn().mockImplementation(() => {
+      return expectValue
+    });
+    const tipsRepositoryPort: TipsRepositoryPort = {
+      save: jest.fn(),
+      findAll,
+      findById: jest.fn()
+    }
+    const setAllTips = jest.fn();
+    const tipsPort: TipsPort = {
+      setAllTips
+    }
+
+    await fetchAllTips(tipsRepositoryPort, tipsPort);
+    expect(setAllTips.mock.calls.length).toBe(1);
+    expect(setAllTips.mock.calls[0][0]).toEqual(expectValue);
+  })
+})

src/domains/tips.ts

@@ -10,6 +10,10 @@ export interface TipsRepositoryPort {
   findAll: () => Promise<Tips[]>;
 }
 
+export interface TipsPort {
+  setAllTips: (allTips: Tips[]) => void;
+}
+
 const createId = () => "hoge";
 
 export const addTips = (
@@ -19,4 +23,14 @@ export const addTips = (
   tipsRepositoryPort.save(createId(), message);
 };
 
+export const fetchAllTips = async (
+  tipsRepositoryPort: TipsRepositoryPort,
+  tipsPort: TipsPort
+) => {
+  const allTips = await tipsRepositoryPort.findAll();
+  tipsPort.setAllTips(allTips);
+};
+
+
+
 // export const updateTips = (id: string, message: string)