Update docs

test/access/extensions/AccessControlDefaultAdminRules.test.js

@@ -0,0 +1,26 @@
+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),
+      'AccessControlInvalidDefaultAdmin',
+      [constants.ZERO_ADDRESS],
+    );
+  });
+
+  shouldBehaveLikeAccessControl(...accounts);
+  shouldBehaveLikeAccessControlDefaultAdminRules(delay, ...accounts);
+});