spec: initial spike of main-process based tests

spec-main/index.js

@@ -0,0 +1,90 @@
+const Module = require('module')
+const path = require('path')
+const v8 = require('v8')
+
+Module.globalPaths.push(path.resolve(__dirname, '../spec/node_modules'))
+
+// We want to terminate on errors, not throw up a dialog
+process.on('uncaughtException', (err) => {
+  console.error('Unhandled exception in main spec runner:', err)
+  process.exit(1)
+})
+
+// Tell ts-node which tsconfig to use
+process.env.TS_NODE_PROJECT = path.resolve(__dirname, '../tsconfig.spec.json')
+
+const { app } = require('electron')
+
+v8.setFlagsFromString('--expose_gc')
+app.commandLine.appendSwitch('js-flags', '--expose_gc')
+// Prevent the spec runner quiting when the first window closes
+app.on('window-all-closed', () => null)
+// TODO: This API should _probably_ only be enabled for the specific test that needs it
+// not the entire test suite
+app.commandLine.appendSwitch('ignore-certificate-errors')
+
+app.whenReady().then(() => {
+  require('ts-node/register')
+
+  const argv = require('yargs')
+    .boolean('ci')
+    .string('g').alias('g', 'grep')
+    .boolean('i').alias('i', 'invert')
+    .argv
+
+  const isCi = !!argv.ci
+  global.isCI = isCi
+
+  const Mocha = require('mocha')
+  const mochaOptions = {}
+  if (process.env.MOCHA_REPORTER) {
+    mochaOptions.reporter = process.env.MOCHA_REPORTER
+  }
+  if (process.env.MOCHA_MULTI_REPORTERS) {
+    mochaOptions.reporterOptions = {
+      reporterEnabled: process.env.MOCHA_MULTI_REPORTERS
+    }
+  }
+  const mocha = new Mocha(mochaOptions)
+
+  if (!process.env.MOCHA_REPORTER) {
+    mocha.ui('bdd').reporter('tap')
+  }
+  mocha.timeout(isCi ? 30000 : 10000)
+
+  if (argv.grep) mocha.grep(argv.grep)
+  if (argv.invert) mocha.invert()
+
+  // Read all test files.
+  const walker = require('walkdir').walk(__dirname, {
+    no_recurse: true
+  })
+
+  // This allows you to run specific modules only:
+  // npm run test -match=menu
+  const moduleMatch = process.env.npm_config_match
+    ? new RegExp(process.env.npm_config_match, 'g')
+    : null
+
+  walker.on('file', (file) => {
+    if (/-spec\.[tj]s$/.test(file) &&
+        (!moduleMatch || moduleMatch.test(file))) {
+      mocha.addFile(file)
+    }
+  })
+
+  walker.on('end', () => {
+    const runner = mocha.run(() => {
+      if (isCi && runner.hasOnly) {
+        try {
+          throw new Error('A spec contains a call to it.only or describe.only and should be reverted.')
+        } catch (error) {
+          console.error(error.stack || error)
+        }
+        process.exit(1)
+      }
+
+      process.exit(runner.failures)
+    })
+  })
+})