test: cover members-only Firestore access rules

tests/firestore-rules/members-only.test.js

@@ -0,0 +1,58 @@
+/* eslint-env jest */
+
+const {
+  clearFirestore, teardown, db, seed, assertFails, assertSucceeds,
+} = require('./setup');
+
+const PRIVATE_CONTENT = {
+  discounts: '<p>Members save 10%.</p>',
+};
+
+beforeEach(clearFirestore);
+afterAll(teardown);
+
+describe('members_only collection', () => {
+  test('anonymous users CANNOT read private content', async () => {
+    await seed('members_only/benefits', PRIVATE_CONTENT);
+    const anon = await db();
+
+    await assertFails(anon.doc('members_only/benefits').get());
+  });
+
+  test('unverified users CANNOT read private content', async () => {
+    await seed('members_only/benefits', PRIVATE_CONTENT);
+    const unverified = await db({ uid: 'u1', role: 'unverified' });
+
+    await assertFails(unverified.doc('members_only/benefits').get());
+  });
+
+  test('members CAN read private content', async () => {
+    await seed('members_only/benefits', PRIVATE_CONTENT);
+    const member = await db({ uid: 'u1', role: 'member' });
+
+    await assertSucceeds(member.doc('members_only/benefits').get());
+  });
+
+  test('admins CAN read private content through the admin catch-all', async () => {
+    await seed('members_only/benefits', PRIVATE_CONTENT);
+    const admin = await db({ uid: 'a1', role: 'admin' });
+
+    await assertSucceeds(admin.doc('members_only/benefits').get());
+  });
+
+  test.each([
+    ['anonymous users', undefined],
+    ['users without a role claim', { uid: 'u1' }],
+    ['unverified users', { uid: 'u2', role: 'unverified' }],
+    ['members', { uid: 'u3', role: 'member' }],
+  ])('%s CANNOT create, update, or delete private content', async (_label, auth) => {
+    await seed('members_only/benefits', PRIVATE_CONTENT);
+    const user = await db(auth);
+
+    await assertFails(user.doc('members_only/new-benefit').set(PRIVATE_CONTENT));
+    await assertFails(user.doc('members_only/benefits').update({
+      discounts: '<p>Changed without admin access.</p>',
+    }));
+    await assertFails(user.doc('members_only/benefits').delete());
+  });
+});