test: add test case for file ref JSON contents

Author: AriPerkkio

packages/cli/tests/__snapshots__/create-tutorial.test.ts.snap

@@ -94,6 +94,58 @@ exports[`create a project 1`] = `
 ]
 `;
 
+exports[`create and build a project > built project file references 1`] = `
+"{
+  "1-basics-1-introduction-1-welcome-files.json": [
+    "/src/index.js",
+    "/src/test/bar.js"
+  ],
+  "1-basics-1-introduction-2-foo-files.json": [
+    "/bar/styles.css",
+    "/src/index.html",
+    "/src/unicorn.js",
+    "/src/windows_xp.png"
+  ],
+  "1-basics-1-introduction-3-bar-files.json": [
+    "/src/index.html"
+  ],
+  "1-basics-1-introduction-1-welcome-solution.json": [
+    "/src/index.js"
+  ],
+  "1-basics-1-introduction-2-foo-solution.json": [
+    "/src/index.html"
+  ],
+  "template-default.json": [
+    "/package-lock.json",
+    "/package.json",
+    "/src/index.js"
+  ],
+  "template-vite-app-2.json": [
+    "/.gitignore",
+    "/counter.js",
+    "/foo.txt",
+    "/index.html",
+    "/javascript.svg",
+    "/main.js",
+    "/package-lock.json",
+    "/package.json",
+    "/public/vite.svg",
+    "/style.css"
+  ],
+  "template-vite-app.json": [
+    "/.gitignore",
+    "/counter.js",
+    "/index.html",
+    "/javascript.svg",
+    "/main.js",
+    "/package-lock.json",
+    "/package.json",
+    "/public/vite.svg",
+    "/style.css"
+  ]
+}"
+`;
+
 exports[`create and build a project 1`] = `
 [
   "1-basics",

packages/cli/tests/create-tutorial.test.ts

@@ -1,5 +1,6 @@
 import { execa } from 'execa';
 import fs from 'node:fs/promises';
+import { readFileSync } from 'node:fs';
 import { tmpdir } from 'node:os';
 import path from 'node:path';
 import { afterAll, beforeAll, expect, test } from 'vitest';
@@ -67,6 +68,20 @@ test('create and build a project', async (context) => {
   const distFiles = await fs.readdir(path.join(dest, 'dist'), { recursive: true });
 
   expect(distFiles.map(normaliseSlash).sort()).toMatchSnapshot();
+
+  // create snapshot of lesson, solution and template file reference JSONs
+  const lessonJsons = distFiles.filter((file) => file.endsWith('-files.json'));
+  const solutionJsons = distFiles.filter((file) => file.endsWith('-solution.json'));
+  const templateJsons = distFiles.filter((file) => file.startsWith('template-') && file.endsWith('.json'));
+
+  const contents = [...lessonJsons, ...solutionJsons, ...templateJsons].reduce((jsons, current) => {
+    const fileJson = JSON.parse(readFileSync(path.join(dest, 'dist', current), 'utf8'));
+    const filenames = Object.keys(fileJson);
+
+    return { ...jsons, [current]: filenames };
+  }, {});
+
+  expect(JSON.stringify(contents, null, 2)).toMatchSnapshot('built project file references');
 });
 
 test('create and eject a project', async (context) => {