1 files changed, 98 insertions, 0 deletions
diff --git a/packages/astro/test/experimental-content-collections-cache-invalidation.test.js b/packages/astro/test/experimental-content-collections-cache-invalidation.test.js
new file mode 100644
index 000000000..5ec688a91
--- /dev/null
+++ b/packages/astro/test/experimental-content-collections-cache-invalidation.test.js
@@ -0,0 +1,98 @@
+import assert from 'node:assert/strict';
+import { after, before, describe, it } from 'node:test';
+import { loadFixture } from './test-utils.js';
+import fs from 'node:fs';
+import { copyFiles } from '../dist/core/build/static-build.js';
+
+describe('Experimental Content Collections cache - invalidation', () => {
+	class CacheBackup {
+		constructor(root, relCacheDir) {
+			this.root = new URL(root, import.meta.url);
+			this.cacheDir = new URL(relCacheDir, this.root);
+			this.tmpDir = new URL(`./tmp` + relCacheDir.slice(1), this.root);
+		}
+		backup() {
+			this.rmTmp();
+			copyFiles(this.cacheDir, this.tmpDir);
+		}
+		restore() {
+			fs.rmSync(this.cacheDir, { recursive: true });
+			copyFiles(this.tmpDir, this.cacheDir);
+		}
+		rmTmp() {
+			fs.rmSync(this.tmpDir, { force: true, recursive: true });
+		}
+	}
+
+	class ManifestTestPlugin {
+		used = false;
+		plugin() {
+			return {
+				name: '@test/manifest-used',
+				hooks: {
+					'astro:build:done': ({ cacheManifest }) => {
+						this.used = cacheManifest;
+					}
+				}
+			}
+		}
+	}
+
+	describe('manifest version', () => {
+		let fixture, backup,
+		/** @type {ManifestTestPlugin} */
+		testPlugin;
+		before(async () => {
+			testPlugin = new ManifestTestPlugin();
+			fixture = await loadFixture({
+				root: './fixtures/content-collections-cache-invalidation/',
+				cacheDir: './cache/version-mismatch/',
+				experimental: { contentCollectionCache: true },
+				integrations: [
+					testPlugin.plugin()
+				]
+			});
+			backup = new CacheBackup('./fixtures/content-collections-cache-invalidation/', './cache/version-mismatch/');
+			backup.backup();
+			await fixture.build();
+		});
+
+		after(async () => {
+			backup.restore();
+			//await fixture.clean();
+		});
+
+		it('Manifest was not used', () => {
+			assert.equal(testPlugin.used, false, 'manifest not used because of version mismatch');
+		});
+	});
+
+	describe('lockfiles', () => {
+		let fixture, backup,
+		/** @type {ManifestTestPlugin} */
+		testPlugin;
+		before(async () => {
+			testPlugin = new ManifestTestPlugin();
+			fixture = await loadFixture({
+				root: './fixtures/content-collections-cache-invalidation/',
+				cacheDir: './cache/lockfile-mismatch/',
+				experimental: { contentCollectionCache: true },
+				integrations: [
+					testPlugin.plugin()
+				]
+			});
+			backup = new CacheBackup('./fixtures/content-collections-cache-invalidation/', './cache/lockfile-mismatch/');
+			backup.backup();
+			await fixture.build();
+		});
+
+		after(async () => {
+			backup.restore();
+			//await fixture.clean();
+		});
+
+		it('Manifest was not used', () => {
+			assert.equal(testPlugin.used, false, 'manifest not used because of lockfile mismatch');
+		});
+	});
+});