first commit

packages/frontend/src/test/alias.test.ts

@@ -0,0 +1,9 @@
+import { formatBytes, slugify } from "@/lib/format";
+
+describe("@ alias resolution", () => {
+  it("resolves @/lib/format and calls its exports", () => {
+    expect(formatBytes(0)).toBe("0 B");
+    expect(formatBytes(1536)).toBe("1.5 KB");
+    expect(slugify("Hello, World!")).toBe("hello-world");
+  });
+});

packages/frontend/src/test/infra.test.ts

@@ -0,0 +1,19 @@
+describe("test infrastructure", () => {
+  it("runs in a jsdom environment with a mutable document", () => {
+    expect(document.body).toBeInstanceOf(HTMLElement);
+
+    const marker = document.createElement("div");
+    marker.id = "jsdom-marker";
+    document.body.appendChild(marker);
+
+    expect(document.getElementById("jsdom-marker")).toBe(marker);
+  });
+
+  it("registers the jest-dom matchers", () => {
+    const el = document.createElement("p");
+    el.textContent = "hello from jest-dom";
+    document.body.appendChild(el);
+
+    expect(el).toBeInTheDocument();
+  });
+});