Fix .gitignore: stop tracking ignored files

backend/lib/openzeppelin-contracts/test/access/AccessControlDefaultAdminRules.test.js

@@ -0,0 +1,25 @@
+const { time, constants, expectRevert } = require('@openzeppelin/test-helpers');
+const {
+  shouldBehaveLikeAccessControl,
+  shouldBehaveLikeAccessControlDefaultAdminRules,
+} = require('./AccessControl.behavior.js');
+
+const AccessControlDefaultAdminRules = artifacts.require('$AccessControlDefaultAdminRules');
+
+contract('AccessControlDefaultAdminRules', function (accounts) {
+  const delay = web3.utils.toBN(time.duration.hours(10));
+
+  beforeEach(async function () {
+    this.accessControl = await AccessControlDefaultAdminRules.new(delay, accounts[0], { from: accounts[0] });
+  });
+
+  it('initial admin not zero', async function () {
+    await expectRevert(
+      AccessControlDefaultAdminRules.new(delay, constants.ZERO_ADDRESS),
+      'AccessControl: 0 default admin',
+    );
+  });
+
+  shouldBehaveLikeAccessControl('AccessControl', ...accounts);
+  shouldBehaveLikeAccessControlDefaultAdminRules('AccessControl', delay, ...accounts);
+});