test(shadcn): Add registry spec tests

Author: Ehesp

packages/shadcn/registry-spec.json

@@ -3,6 +3,20 @@
   "name": "acme",
   "homepage": "{{ DOMAIN }}",
   "items": [
+    {
+      "name": "sign-in-auth-screen",
+      "type": "registry:block",
+      "title": "Sign In Auth Screen",
+      "description": "A screen allowing users to sign in with email and password.",
+      "dependencies": ["{{ DEP | @firebase-ui/react }}"],
+      "registryDependencies": ["separator", "card", "{{ DOMAIN }}/sign-in-auth-form.json"],
+      "files": [
+        {
+          "path": "src/registry/sign-in-auth-screen.tsx",
+          "type": "registry:component"
+        }
+      ]
+    },
     {
       "name": "sign-in-auth-form",
       "type": "registry:block",

packages/shadcn/registry-spec.test.ts

@@ -0,0 +1,27 @@
+import { describe, it, expect, vi, afterEach, beforeEach } from "vitest";
+import fs from "fs";
+
+const regisryFiles = import.meta.glob([
+  "./src/registry/**/*.tsx",
+  "!./src/registry/**/*.test.tsx",
+  "!./src/registry/**/*.spec.tsx",
+]);
+
+describe("registry-spec", () => {
+  it("should be a valid JSON file", () => {
+    const registrySpec = fs.readFileSync("./registry-spec.json", "utf8");
+    expect(registrySpec).toBeDefined();
+    expect(() => JSON.parse(registrySpec)).not.toThrow();
+  });
+
+  for (const path of Object.keys(regisryFiles)) {
+    it(`${path} should exist in the registry`, () => {
+      const registrySpec = fs.readFileSync("./registry-spec.json", "utf8");
+      const json = JSON.parse(registrySpec);
+
+      const name = path.split("/").at(-1)?.split(".")[0];
+      const item = json.items.find((item: any) => item.name === name);
+      expect(item).toBeDefined();
+    });
+  }
+});