Let mocha handle uncaught errors outside of tests

See jprichardson#143

Author: inukshuk

renderer/run.js

@@ -1,51 +1,51 @@
+const { ipcRenderer: ipc } = require('electron')
 const { files, ...opts } = window.__args__
 
 if (!opts.interactive) {
   require('./console')
 }
 
-const { Mocha, helpers } = require('../lib/mocha')
-const { ipcRenderer: ipc } = require('electron')
-
-const handleScripts = (scripts = []) => {
-  for (let script of scripts) {
-    let tag = document.createElement('script')
-    tag.src = script
-    tag.async = false
-    tag.onerror = () => {
-      ipc.send('mocha-warn', {
-        message: `script not found: ${script}`
-      })
-    }
-    document.head.appendChild(tag)
-  }
-}
-
 const fail = error => {
   ipc.send('mocha-error', {
     message: error.message || error,
     stack: error.stack
   })
 }
 
-process.on('SIGINT', () => console.log('sigint'))
-// Expose Mocha for browser tests
-window.mocha = Mocha
+try {
+  const { Mocha, helpers } = require('../lib/mocha')
+
+  const handleScripts = (scripts = []) => {
+    for (let script of scripts) {
+      let tag = document.createElement('script')
+      tag.src = script
+      tag.async = false
+      tag.onerror = () => {
+        ipc.send('mocha-warn', {
+          message: `script not found: ${script}`
+        })
+      }
+      document.head.appendChild(tag)
+    }
+  }
 
-window.addEventListener('error', fail)
-window.addEventListener('unhandledrejection', e => fail(e.reason))
+  // Expose Mocha for browser tests
+  window.mocha = Mocha
 
-handleScripts(opts.script)
+  handleScripts(opts.script)
 
-ipc.on('mocha-start', () => {
-  try {
-    helpers.runMocha(opts, files, (...args) => {
-      ipc.send('mocha-done', ...args)
-    })
-  } catch (error) {
-    fail(error)
-  }
-})
+  ipc.on('mocha-start', () => {
+    try {
+      helpers.runMocha(opts, files, (...args) => {
+        ipc.send('mocha-done', ...args)
+      })
+    } catch (e) {
+      fail(e)
+    }
+  })
 
-// Request re-run on reload in --interactive mode
-ipc.send('mocha-ready-to-run')
+  // Request re-run on reload in --interactive mode
+  ipc.send('mocha-ready-to-run')
+} catch (e) {
+  fail(e)
+}