Use deterministic, internal IDs

This helps a bit with experimentalRunAllSpecs: true, relates to #948.

Author: badeball

CHANGELOG.md

@@ -8,6 +8,8 @@ All notable changes to this project will be documented in this file.
 
 - Replace [cucumber-json-formatter](https://github.com/cucumber/json-formatter) with native components, relates to [#795](https://github.com/badeball/cypress-cucumber-preprocessor/issues/795), [#827](https://github.com/badeball/cypress-cucumber-preprocessor/issues/827), [#870](https://github.com/badeball/cypress-cucumber-preprocessor/issues/870), [#966](https://github.com/badeball/cypress-cucumber-preprocessor/issues/966) and [#967](https://github.com/badeball/cypress-cucumber-preprocessor/issues/967).
 
+- Use deterministic, internal IDs, fixes [#948](https://github.com/badeball/cypress-cucumber-preprocessor/issues/948) to some degree..
+
 ## v15.1.5
 
 - Correctly escape injected values to glob patterns, fixes [#946](https://github.com/badeball/cypress-cucumber-preprocessor/issues/946).

features/issues/908.feature

@@ -12,12 +12,9 @@ Feature: hide internals from cypress environment
       """
       const { Then } = require("@badeball/cypress-cucumber-preprocessor");
       const { INTERNAL_SPEC_PROPERTIES } = require("@badeball/cypress-cucumber-preprocessor/lib/constants");
-      // From https://github.com/rfrench/chai-uuid/blob/master/index.js.
-      const UUID_V4_EXPR = /^[0-9A-F]{8}-[0-9A-F]{4}-[4][0-9A-F]{3}-[89AB][0-9A-F]{3}-[0-9A-F]{12}$/i;
       Then("the visible internal state should be a mere reference", () => {
         const properties = Cypress.env(INTERNAL_SPEC_PROPERTIES);
-        expect(properties).to.be.a("string");
-        expect(properties).to.match(UUID_V4_EXPR);
+        expect(properties).to.be.a("number");
       });
       """
     When I run cypress

lib/create-tests.ts

@@ -102,18 +102,19 @@ export interface InternalSuiteProperties {
   isEventHandlersAttached?: boolean;
 }
 
-const internalSpecProperties = new Map<string, InternalSpecProperties>();
+let specId = 0;
+
+const internalSpecProperties = new Map<number, InternalSpecProperties>();
 
 function createInternalSpecProperties(
   properties: InternalSpecProperties
-): string {
-  const reference = uuid();
-  internalSpecProperties.set(reference, properties);
-  return reference;
+): number {
+  internalSpecProperties.set(++specId, properties);
+  return specId;
 }
 
 export function retrieveInternalSpecProperties(): InternalSpecProperties {
-  const reference = Cypress.env(INTERNAL_SPEC_PROPERTIES) as string;
+  const reference = Cypress.env(INTERNAL_SPEC_PROPERTIES) as number;
 
   return assertAndReturn(
     internalSpecProperties.get(reference),