added command

package.json

@@ -81,7 +81,6 @@
   "dependencies": {
     "@remixproject/engine": "^0.2.3",
     "http-server": "^0.11.1",
-    "selenium": "^2.20.0",
     "standard": "^8.5.0"
   },
   "repository": {

test-browser/commands/noWorkerErrorFor.js

@@ -0,0 +1,28 @@
+const EventEmitter = require('events')
+
+class NoWorkerErrorFor extends EventEmitter {
+  command (version, content) {
+    this.api.perform((done) => {
+      noWorkerErrorFor(this.api, version, content, () => {
+        done()
+        this.emit('complete')
+      })
+    })
+    return this
+  }
+}
+
+function noWorkerErrorFor (browser, version, done) {
+  browser
+    .clickLaunchIcon('solidity')
+    .setSolidityCompilerVersion(version)
+    .waitForElementPresent('*[data-id="compiledErrors"]')
+    .notContainsText('*[data-id="compiledErrors"]', 'worker error:undefined')
+    .notContainsText('*[data-id="compiledErrors"]', 'Uncaught RangeError: Maximum call stack size exceeded')
+    .notContainsText('*[data-id="compiledErrors"]', 'RangeError: Maximum call stack size exceeded')
+    .perform(function (done) {
+      done()
+    })
+}
+
+module.exports = NoWorkerErrorFor