Selenium webdriver vue-cli3+；电子+；chromedriver+；selenium webdriver找不到元素

我使用vue cli项目（安装了electron+seleniumWebDriver）对ChromeDriver运行测试

我一直运行chromedriver（安装在我的vue cli项目中），然后运行测试文件“node ff.js”

Electron应用程序在屏幕上运行，但什么也没发生。然后等待进程退出，结果变成错误“UnhandledPromisejectionWarning:WebDriverError:unknown error:DevToolsActivePort文件不存在”

我在网上搜索了一下，找到了其他人声称效果不错的解决方案。只需在chrome选项中添加一个“--disable dev shm usage”。但这仍然是一个错误

ff.js

package.json

"devDependencies": {
    "@types/chai": "^4.1.0",
    "@types/mocha": "^5.2.4",
    "@vue/cli-plugin-babel": "^3.5.0",
    "@vue/cli-plugin-e2e-nightwatch": "^3.6.0",
    "@vue/cli-plugin-eslint": "^3.5.0",
    "@vue/cli-plugin-typescript": "^3.5.0",
    "@vue/cli-plugin-unit-mocha": "^3.5.0",
    "@vue/cli-service": "^3.5.0",
    "@vue/eslint-config-standard": "^4.0.0",
    "@vue/eslint-config-typescript": "^4.0.0",
    "@vue/test-utils": "1.0.0-beta.29",
    "babel-eslint": "^10.0.1",
    "babel-plugin-istanbul": "^5.1.3",
    "bootstrap": "^4.3.1",
    "chai": "^4.1.2",
    "chromedriver": "^73.0.0",
    "copy-webpack-plugin": "^5.0.2",
    "electron": "^4.0.0",
    "electron-rebuild": "^1.8.4",
    "eslint": "^5.8.0",
    "eslint-plugin-vue": "^5.0.0",
    "jquery": "^3.4.0",
    "mocha": "^6.1.4",
    "mochawesome": "^3.1.2",
    "node-sass": "^4.9.0",
    "nyc": "^14.0.0",
    "popper.js": "^1.15.0",
    "sass-loader": "^7.1.0",
    "selenium-webdriver": "^4.0.0-alpha.1",
    "ts-node": "^8.1.0",
    "ts-protoc-gen": "^0.9.0",
    "typescript": "^3.2.1",
    "vue-cli-plugin-electron-builder": "^1.2.0",
    "vue-template-compiler": "^2.5.21",
    "vuex-module-decorators": "^0.9.8",
    "webdriverio": "^5.8.3"
  }

"scripts": {
    ...
    "cafe": "testcafe \"electron:/Users/xxx/Documents/ProjectFolder/.testcafe-electron-rc\" \"/Users/xxx/Documents/ProjectFolder/tests/e2e/specs/testcafe.js\""
  },
"devDependencies": {
    ...
    "selenium-webdriver": "^4.0.0-alpha.1",
    "testcafe": "^1.1.4",
    "testcafe-browser-provider-electron": "0.0.8"
  }

还有，我试过了ChromeDriver@74.x.x，它仍然会导致相同的错误

事实上，我尝试过Selenium RobotFramework，但仍然发现了相同的错误。我想这是因为我的测试写作或某些设置有问题。（我不擅长测试工具。）

仅供参考

mytest.robot

*** Settings ***
Library           Selenium2Library
Variables         vars.py

*** Test Cases ***
Foohaha
    Create Webdriver    Remote    desired_capabilities=${binary_location}    command_executor=http://localhost:9515
    Log To Console  ${item.get_attribute('innerHTML')}
    [Teardown]    Close All Browsers

---

另外，之所以不使用spectron，是因为我只使用了Selenium。

在我尝试了几乎推荐的测试库之后。我最终选择了testcafe。将pref应用程序路径设置为我的分布式应用程序的二进制文件，然后将页面设置为在测试文件中作为html文件打开。主路径是默认值

我就是这样设置的

.testcafe-electron-rc

{
  "mainWindowUrl": "app://./index.html",
  "electronPath": "/Users/xxx/Documents/ProjectFolder/dist_electron/mac/my-lovely-app.app/Contents/MacOS/my-lovely-app",
  "openDevTools": "true"
}

package.json

"devDependencies": {
    "@types/chai": "^4.1.0",
    "@types/mocha": "^5.2.4",
    "@vue/cli-plugin-babel": "^3.5.0",
    "@vue/cli-plugin-e2e-nightwatch": "^3.6.0",
    "@vue/cli-plugin-eslint": "^3.5.0",
    "@vue/cli-plugin-typescript": "^3.5.0",
    "@vue/cli-plugin-unit-mocha": "^3.5.0",
    "@vue/cli-service": "^3.5.0",
    "@vue/eslint-config-standard": "^4.0.0",
    "@vue/eslint-config-typescript": "^4.0.0",
    "@vue/test-utils": "1.0.0-beta.29",
    "babel-eslint": "^10.0.1",
    "babel-plugin-istanbul": "^5.1.3",
    "bootstrap": "^4.3.1",
    "chai": "^4.1.2",
    "chromedriver": "^73.0.0",
    "copy-webpack-plugin": "^5.0.2",
    "electron": "^4.0.0",
    "electron-rebuild": "^1.8.4",
    "eslint": "^5.8.0",
    "eslint-plugin-vue": "^5.0.0",
    "jquery": "^3.4.0",
    "mocha": "^6.1.4",
    "mochawesome": "^3.1.2",
    "node-sass": "^4.9.0",
    "nyc": "^14.0.0",
    "popper.js": "^1.15.0",
    "sass-loader": "^7.1.0",
    "selenium-webdriver": "^4.0.0-alpha.1",
    "ts-node": "^8.1.0",
    "ts-protoc-gen": "^0.9.0",
    "typescript": "^3.2.1",
    "vue-cli-plugin-electron-builder": "^1.2.0",
    "vue-template-compiler": "^2.5.21",
    "vuex-module-decorators": "^0.9.8",
    "webdriverio": "^5.8.3"
  }

"scripts": {
    ...
    "cafe": "testcafe \"electron:/Users/xxx/Documents/ProjectFolder/.testcafe-electron-rc\" \"/Users/xxx/Documents/ProjectFolder/tests/e2e/specs/testcafe.js\""
  },
"devDependencies": {
    ...
    "selenium-webdriver": "^4.0.0-alpha.1",
    "testcafe": "^1.1.4",
    "testcafe-browser-provider-electron": "0.0.8"
  }

testcafe.js

import { Selector } from 'testcafe';

fixture(`Index page`)
  .page('/Users/xxx/Documents/ProjectFolder/dist_electron/bundled/index.html');


test('Body > Paragraph contains "Hello World!"', async testController => {

  const paragraphSelector = await new Selector('#nav > a.router-link-exact-active.router-link-active');
  const txt = await new Selector('#app > div.auth-page > div > div > div > form > fieldset:nth-child(1) > input');

  await testController.click(paragraphSelector)
            .typeText(txt, 'Peter Parker');
            // .expect(paragraphSelector.innerText).eql("Login");//.eql('Login');
});

希望这能帮助别人