fix(run-multiple): keep test patterns globbable when --config is passed

With --config, run-multiple resolved config.tests and gherkin.features
with path.resolve. On Windows this produced backslash paths, which glob
treats as escapes, so no feature files were found. An array of patterns
made path.resolve throw a TypeError on every platform.

Resolve each pattern separately and use forward slashes.

Fixes #5358

Author: luantaraschi

lib/command/run-multiple.js

@@ -75,10 +75,10 @@ export default async function (selectedRuns, options) {
   if (options.config) {
     // update paths to config path
     if (config.tests) {
-      config.tests = path.resolve(testRoot, config.tests)
+      config.tests = resolvePatterns(testRoot, config.tests)
     }
     if (config.gherkin && config.gherkin.features) {
-      config.gherkin.features = path.resolve(testRoot, config.gherkin.features)
+      config.gherkin.features = resolvePatterns(testRoot, config.gherkin.features)
     }
   }
 
@@ -117,6 +117,11 @@ export default async function (selectedRuns, options) {
   })
 }
 
+export function resolvePatterns(testRoot, patterns) {
+  const resolve = pattern => path.resolve(testRoot, pattern).split(path.sep).join(path.posix.sep)
+  return Array.isArray(patterns) ? patterns.map(resolve) : resolve(patterns)
+}
+
 function executeRun(runName, runConfig) {
   // clone config
   let overriddenConfig = { ...config }

test/unit/command/run_multiple_test.js

@@ -0,0 +1,24 @@
+import { expect } from 'chai'
+import path from 'path'
+import { fileURLToPath } from 'url'
+import { globSync } from 'glob'
+import { resolvePatterns } from '../../../lib/command/run-multiple.js'
+
+const __dirname = path.dirname(fileURLToPath(import.meta.url))
+const testRoot = path.join(__dirname, '../../data/sandbox')
+
+describe('run-multiple command', () => {
+  describe('resolvePatterns', () => {
+    it('should resolve a pattern that glob can match', () => {
+      const pattern = resolvePatterns(testRoot, './features/*.feature')
+      expect(path.isAbsolute(pattern)).to.be.true
+      expect(globSync(pattern)).to.have.lengthOf(globSync('./features/*.feature', { cwd: testRoot }).length).and.not.be.empty
+    })
+
+    it('should resolve each pattern of an array', () => {
+      const patterns = resolvePatterns(testRoot, ['./features/checkout.feature', './features/async.feature'])
+      expect(patterns).to.have.lengthOf(2)
+      patterns.forEach(pattern => expect(globSync(pattern)).to.have.lengthOf(1))
+    })
+  })
+})