From fa9c77521cce2a55983333a0df326ec7beafb34d Mon Sep 17 00:00:00 2001
From: Mikkel Vester Petersen <mikkelvp@gmail.com>
Date: Thu, 19 Nov 2020 14:19:41 +0100
Subject: [PATCH 1/3] Fix assertFails not recognising database permission
 denied error

---
 packages/rules-unit-testing/src/api/index.ts | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/packages/rules-unit-testing/src/api/index.ts b/packages/rules-unit-testing/src/api/index.ts
index 680b195b09f..28626127f52 100644
--- a/packages/rules-unit-testing/src/api/index.ts
+++ b/packages/rules-unit-testing/src/api/index.ts
@@ -454,9 +454,14 @@ export function assertFails(pr: Promise<any>): any {
       );
     },
     (err: any) => {
+      const errCode = (err && err.code && err.code.toLowerCase()) || '';
+      const errMessage =
+        (err && err.message && err.message.toLowerCase()) || '';
       const isPermissionDenied =
-        (err && err.message && err.message.indexOf('PERMISSION_DENIED') >= 0) ||
-        (err && err.code === 'permission-denied');
+        errCode === 'permission-denied' ||
+        errCode === 'permission_denied' ||
+        errMessage.indexOf('permission_denied') >= 0;
+
       if (!isPermissionDenied) {
         return Promise.reject(
           new Error(

From fd386fe125dfca465db5920d3725c98b47d6c50a Mon Sep 17 00:00:00 2001
From: Mikkel Vester Petersen <mikkelvp@gmail.com>
Date: Thu, 19 Nov 2020 15:04:45 +0100
Subject: [PATCH 2/3] Add rules-unit-testing changeset

---
 .changeset/early-dots-peel.md | 5 +++++
 1 file changed, 5 insertions(+)
 create mode 100644 .changeset/early-dots-peel.md

diff --git a/.changeset/early-dots-peel.md b/.changeset/early-dots-peel.md
new file mode 100644
index 00000000000..2b059fbabff
--- /dev/null
+++ b/.changeset/early-dots-peel.md
@@ -0,0 +1,5 @@
+---
+"@firebase/rules-unit-testing": patch
+---
+
+Fix assertFails not recognising database permission denied error

From 878fec26907921f148e7e940c304ed5495c94f47 Mon Sep 17 00:00:00 2001
From: Mikkel Vester Petersen <mikkelvp@gmail.com>
Date: Fri, 20 Nov 2020 11:25:50 +0100
Subject: [PATCH 3/3] Add assertFails test when code is PERMISSION_DENIED

---
 .../rules-unit-testing/test/database.test.ts  | 25 +++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/packages/rules-unit-testing/test/database.test.ts b/packages/rules-unit-testing/test/database.test.ts
index d5929ee8666..95bb16a8db7 100644
--- a/packages/rules-unit-testing/test/database.test.ts
+++ b/packages/rules-unit-testing/test/database.test.ts
@@ -103,6 +103,31 @@ describe('Testing Module Tests', function () {
       .catch(() => {});
   });
 
+  it('assertFails() if code is PERMISSION_DENIED', async function () {
+    const success = Promise.resolve('success');
+    const permissionDenied = Promise.reject({
+      code: 'PERMISSION_DENIED'
+    });
+    const otherFailure = Promise.reject('failure');
+    await firebase
+      .assertFails(success)
+      .then(() => {
+        throw new Error('Expected success to fail.');
+      })
+      .catch(() => {});
+
+    await firebase.assertFails(permissionDenied).catch(() => {
+      throw new Error('Expected permissionDenied to succeed.');
+    });
+
+    await firebase
+      .assertFails(otherFailure)
+      .then(() => {
+        throw new Error('Expected otherFailure to fail.');
+      })
+      .catch(() => {});
+  });
+
   it('initializeTestApp() with auth=null does not set access token', async function () {
     const app = firebase.initializeTestApp({
       projectId: 'foo',