Disable HTML reporter in Cucumber.

lib/reporter/global-reporter.js

@@ -36,11 +36,15 @@ module.exports = class GlobalReporter {
     this.suiteResults = [];
     this.skippedSuites = 0;
     this.uncaughtErr = null;
-    this.reporterFile = reporter;
     this.reportFileName = reportFileName;
 
-    if (!Array.isArray(this.reporterFile) && typeof this.reporterFile == 'string') {
-      this.reporterFile = this.reporterFile.split(',');
+    this.reporterFile = [];
+    if (Array.isArray(reporter)) {
+      // Any subsequent changes in `this.reporterFile` shouldn't lead to changes in
+      // `argv.reporter` provided by the user, or `DefaultSettings.default_reporter`.
+      this.reporterFile = reporter.slice(0);
+    } else if (typeof reporter == 'string') {
+      this.reporterFile = reporter.split(',');
     }
     this.settings = settings;
     this.summary = new Summary(settings);

lib/runner/test-runners/cucumber.js

@@ -4,6 +4,7 @@ const TestSuite =  require('../../testsuite');
 const {Logger, isString, isDefined} = require('../../utils');
 const {NightwatchEventHub} = require('../eventHub.js');
 const {getTestSourceForRerunFailed} = require('../rerunUtil.js');
+const DefaultSettings = require('../../settings/defaults.js');
 
 class CucumberSuite extends TestSuite {
   static isSessionCreateError(err) {
@@ -252,6 +253,25 @@ class CucumberRunnner extends Runner {
     return 'cucumber';
   }
 
+  constructor(settings, argv, addtOpts) {
+    super(settings, argv, addtOpts);
+
+    // Disable HTML Reporter as it is not yet supported in Cucumber.
+    const reporterFile = this.globalReporter.reporterFile;
+    if (reporterFile && reporterFile.includes('html')) {
+      if (reporterFile.toString() !== DefaultSettings.default_reporter.toString()) {
+        // user has specifically asked for HTML report.
+        // eslint-disable-next-line no-console
+        console.warn(Logger.colors.yellow('HTML reporter is not supported with Cucumber runner.'));
+      }
+
+      const index = reporterFile.indexOf('html');
+      if (index > -1) {
+        reporterFile.splice(index, 1);
+      }
+    }
+  }
+
   hasTestFailures(result) {
     return result && result.success === false;
   }

lib/runner/test-runners/cucumber/_setup_cucumber_runner.js

@@ -7,8 +7,6 @@ Before(function({pickle, testCaseStartedId}) {
   const webdriver = {};
 
   process.env.CUCUMBER_TEST_CASE_STARTED_ID = testCaseStartedId;
-  // eslint-disable-next-line no-console
-  console.log('setup_cucumber_before', 'PID:', process.pid, 'testCaseStartedId:', testCaseStartedId);
 
   if (this.parameters['webdriver-host']) {
     webdriver.host = this.parameters['webdriver-host'];