Description
Operating System
macOS sonoma 14.4.1
Environment (if applicable)
nodejs v22.1.0
Firebase SDK Version
4.0.1
Firebase SDK Product(s)
Database
Project Tooling
node with jest
Detailed Problem Description
the documentation for assertFails says it should return a promise that rejects if the promise passed to it resolves
https://firebase.google.com/docs/reference/emulator-suite/rules-unit-testing/rules-unit-testing.md#assertfails
I tested a asserFails on a get() call on rtdb and found that this is not the case, instead it resolved when the promised it was passed resolved. I tested using the same approach as this line in the quickstart example code here: https://github.com/firebase/quickstart-testing/blob/6ac0acf396e87e2588223151e8f0b4cf307a5e84/unit-test-security-rules-v9/test/database.spec.ts#L86
Steps and code to reproduce issue
`const {
assertFails,
assertSucceeds,
initializeTestEnvironment
} = require("@firebase/rules-unit-testing");
const { log } = require("console");
const fs = require('fs');
// import { describe, expect, test, beforeAll, beforeEach, afterAll } from 'vitest';
let testEnv;
beforeAll(async () => {
testEnv = await initializeTestEnvironment({
projectId: "XXXXX",
database: {
host: 'localhost',
port: '9000',
rules: fs.readFileSync("../database.rules.json", "utf8"),
},
});
});
afterAll(async () => {
return testEnv.cleanup();
});
beforeEach(async () => {
return testEnv.clearDatabase();
});
test("can't read or write to gameLobby if unauthenticated", async () => { // test for "auth != null" rule
let loggedOutDb = testEnv.unauthenticatedContext().database();
let errorResult = await assertFails(loggedOutDb.ref('/gameLobby').set({foo: "bar"})); // this works as expected
await expect(errorResult.code).toBe('PERMISSION_DENIED');
return expect(assertFails(loggedOutDb.ref('/gameLobby').get())).resolves; // this passes whether or not your rules allow or block the read.
});
`