fix decorators by adding additional allure getter for mocha reporter

packages/allure-decorators/test/fixtures/specs/baseTest.ts

@@ -1,10 +1,12 @@
 import { decorate } from "../../../";
-import { allure, MochaAllure } from "allure-mocha/runtime";
+import { allureGetter, MochaAllure } from "allure-mocha/runtime";
 
 export class BaseTest {
   public static readonly TEST_URL = "https://custom.domain.com";
 
   public before() {
+    const allure = allureGetter();
+
     decorate<MochaAllure>(allure);
   }
 }

packages/allure-mocha/runtime.d.ts

@@ -1,3 +1,3 @@
 export { MochaAllure } from "./dist/MochaAllure";
 export { MochaAllureReporter } from "./dist/MochaAllureReporter";
-export { allure } from "./dist/MochaAllureReporter";
+export { allure, allureGetter } from "./dist/MochaAllureReporter";

packages/allure-mocha/runtime.js

@@ -23,6 +23,12 @@ Object.defineProperty(module.exports, "allure", {
     return _MochaAllureReporter.allure;
   },
 });
+Object.defineProperty(module.exports, "allureGetter", {
+  enumerable: true,
+  get: function () {
+    return _MochaAllureReporter.allureGetter;
+  },
+});
 Object.defineProperty(module.exports, "MochaAllureReporter", {
   enumerable: true,
   get: function () {

packages/allure-mocha/src/MochaAllureReporter.ts

@@ -20,7 +20,11 @@ let mochaAllure: MochaAllure;
 
 // eslint-disable-next-line
 // @ts-ignore
-export const allure: MochaAllure = new MochaAllureGateway(() => mochaAllure);
+export const allure: MochaAllure = mochaAllure;
+
+// eslint-disable-next-line
+// @ts-ignore
+export const allureGetter: () => MochaAllure = () => mochaAllure;
 
 type ParallelRunner = Mocha.Runner & {
   linkPartialObjects?: (val: boolean) => ParallelRunner;