add config file support; switch to yargs

.eslintrc.yml

@@ -23,12 +23,14 @@ overrides:
     - karma.conf.js
     - .wallaby.js
     - bin/*
+    - lib/cli/**/*.js
+    - test/node-unit/**/*.js
     parserOptions:
       ecmaVersion: 6
     env:
       browser: no
   - files:
-    - test/**/*.js
+    - test/**/*.{js,mjs}
     env:
       mocha: yes
     globals:
@@ -37,4 +39,9 @@ overrides:
     - doc/**/*.js
     env:
       node: no
+  - files:
+    - test/**/*.mjs
+    parserOptions:
+      ecmaVersion: 6
+      sourceType: module
 

.mocharc.yml

@@ -0,0 +1,7 @@
+require: test/setup
+ui: bdd
+global:
+  - okGlobalA,okGlobalB
+  - okGlobalC
+  - callback*
+timeout: 200

.travis.yml

@@ -67,8 +67,8 @@ jobs:
       env: null
       before_install: true
       install: npm install --production
-      # `--opts /dev/null` means "ignore test/mocha.opts"
-      script: ./bin/mocha --opts /dev/null --reporter spec test/sanity/sanity.spec.js
+
+      script: ./bin/mocha --no-config --reporter spec test/sanity/sanity.spec.js
       cache:
         directories:
           - ~/.npm

.wallaby.js

@@ -3,26 +3,35 @@
 module.exports = () => {
   return {
     files: [
-      'index.js', 'lib/**/*.js', 'test/setup.js', 'test/assertions.js',
+      'index.js',
+      'lib/**/*.{js,json}',
+      'test/setup.js',
+      'test/assertions.js',
       {
         pattern: 'test/node-unit/**/*.fixture.js',
         instrument: false
-      }, {
+      },
+      {
         pattern: 'test/unit/**/*.fixture.js',
         instrument: false
-      }
+      },
+      'package.json',
+      'test/opts/mocha.opts',
+      'mocharc.yml'
     ],
-    filesWithNoCoverageCalculated: ['test/**/*.fixture.js'],
-    tests: [
-      'test/unit/**/*.spec.js', 'test/node-unit/**/*.spec.js'
+    filesWithNoCoverageCalculated: [
+      'test/**/*.fixture.js',
+      'test/setup.js',
+      'test/assertions.js'
     ],
+    tests: ['test/unit/**/*.spec.js', 'test/node-unit/**/*.spec.js'],
     env: {
       type: 'node',
       runner: 'node'
     },
     workers: {recycle: true},
     testFramework: {type: 'mocha', path: __dirname},
-    setup (wallaby) {
+    setup(wallaby) {
       // running mocha instance is not the same as mocha under test,
       // running mocha is the project's source code mocha, mocha under test is instrumented version of the source code
       const runningMocha = wallaby.testFramework;
@@ -33,7 +42,7 @@ module.exports = () => {
       // to make test/node-unit/color.spec.js pass, we need to run mocha in the project's folder context
       const childProcess = require('child_process');
       const execFile = childProcess.execFile;
-      childProcess.execFile = function () {
+      childProcess.execFile = function() {
         let opts = arguments[2];
         if (typeof opts === 'function') {
           opts = {};