Header tests.

test/Header.spec.js

@@ -0,0 +1,18 @@
+import { mount, RouterLinkStub } from "@vue/test-utils";
+import Header from "@/components/Header";
+
+describe("Header", () => {
+  it("should render Header instance", () => {
+    const wrapper = mount(Header, { stubs: ["router-link"] });
+    expect(wrapper.find("h1").text()).toBe("Ghibli");
+  });
+
+  it("should redirect to Home page when clicking on brand logo", () => {
+    const wrapper = mount(Header, {
+      stubs: {
+        RouterLink: RouterLinkStub
+      }
+    });
+    expect(wrapper.findComponent(RouterLinkStub).props().to).toBe("/");
+  });
+});