test: saving api

pages/api/saving.test.js

@@ -0,0 +1,62 @@
+import Stripe from "stripe";
+import handler from "./saving";
+
+jest.mock("stripe", () => {
+  return jest.fn().mockImplementation(() => {
+    return {
+      paymentIntents: {
+        create: jest.fn().mockResolvedValueOnce({
+          client_secret: "secret",
+        }).mockRejectedValueOnce(new Error("error")),
+      },
+    };
+  });
+});
+
+describe("saving", () => {
+  it("should return a client secret", async () => {
+    console.log = jest.fn();
+
+    const req = {
+      body: {
+        idSaving: "123",
+        amount: 100,
+        currency: "USD",
+      },
+    };
+
+    const res = {
+      send: jest.fn(),
+    };
+
+    await handler(req, res);
+
+    expect(res.send).toHaveBeenCalledWith({
+      clientSecret: expect.any(String),
+    });
+  });
+
+  it("should log error", async () => {
+    console.log = jest.fn();
+
+    const req = {
+      body: {
+        idSaving: "123",
+        amount: 100,
+        currency: "USD",
+      },
+    };
+
+    const res = {
+      send: jest.fn(),
+    };
+
+    Stripe.mockImplementationOnce(() => {
+      throw new Error("error");
+    });
+
+    await handler(req, res);
+
+    expect(console.log).toHaveBeenCalledWith("api/saving", new Error("error"));
+  });
+});