REST: Fix flaky mocha tests caused by AuthTest.js

Occasionally, mocha tests in the `mediawiki-quibble-apitests-vendor-php74` CI job fail with the following error:
```
{
  code: 'permission-denied',
  message: 'Access to resource is denied',
  context: { denial_reason: 'resource-protected' }
}
```

I suspect this is due to tests in `AuthTest.js` protecting an item/property that is also used in other tests. `AuthTest.js` uses the `describeWithTestData()` helper function which in turn uses the `getItemId()` helper function which enable the reuse of a single Item across tests.

Adding a `createNewItem` param to `describeWithTestData()` allows `AuthTest.js` to request that a new Item is created for its tests.

Change-Id: I0ba157a6bffdf8facc9a99905ae9287e71f8d4e1

repo/domains/crud/tests/mocha/api-testing/AuthTest.js

@@ -66,7 +66,6 @@ describeWithTestData( 'Auth', ( itemRequestInputs, propertyRequestInputs, descri
 	} );
 
 	describe( 'Authorization', () => {
-
 		describeEachRouteWithReset(
 			[
 				...editRequests,
@@ -159,4 +158,4 @@ describeWithTestData( 'Auth', ( itemRequestInputs, propertyRequestInputs, descri
 			expect( response ).to.have.status( 403 );
 		} );
 	} );
-} );
+}, true ); // create a new Item for the Auth tests

repo/domains/crud/tests/mocha/helpers/describeWithTestData.js

@@ -12,6 +12,7 @@ const {
 } = require( './entityHelper' );
 const { getAllowedBadges } = require( './getAllowedBadges' );
 const {
+	newCreateItemRequestBuilder,
 	newPatchItemRequestBuilder,
 	newPatchPropertyRequestBuilder
 } = require( './RequestBuilderFactory' );
@@ -31,9 +32,10 @@ const { expect } = require( '../../../../../rest-api/tests/mocha/helpers/chaiHel
  *
  * @param {string} testName
  * @param {Function} runAllTests
+ * @param {boolean} createNewItem
  * @return {void}
  */
-function describeWithTestData( testName, runAllTests ) {
+function describeWithTestData( testName, runAllTests, createNewItem = false ) {
 	const itemRequestInputs = {};
 	const propertyRequestInputs = {};
 	const originalLinkedArticle = utils.title( 'Original-article-linked-to-test-item' );
@@ -86,7 +88,8 @@ function describeWithTestData( testName, runAllTests ) {
 			await createWikiPage( newLinkedArticle, 'sitelink test' );
 			const statementPropertyId = await getStringPropertyId();
 
-			const itemId = await getItemId();
+			const itemId = createNewItem ?
+				( await newCreateItemRequestBuilder( {} ).makeRequest() ).body.id : await getItemId();
 			const item = await resetEntityTestData( itemId, statementPropertyId, originalLinkedArticle );
 			itemRequestInputs.mainTestSubject = itemId;
 			itemRequestInputs.itemId = itemId;
@@ -101,7 +104,6 @@ function describeWithTestData( testName, runAllTests ) {
 			propertyRequestInputs.propertyId = propertyId;
 			propertyRequestInputs.statementId = property.statements[ statementPropertyId ][ 0 ].id;
 			propertyRequestInputs.statementPropertyId = statementPropertyId;
-
 		} );
 
 		runAllTests( itemRequestInputs, propertyRequestInputs, describeEachRouteWithReset );