Chai 断言不会使用异步命令失败？

Question

使用以下异步命令时，我的 Chai 断言似乎没有失败：

async confirmSuccessfulSubmission() {
    try {
        let value = await $("#contact_reply h1").getText()
        if(value)
           return expect(value).to.equal("Thank You for your Message!2"); 
        return null
        } catch(e) {
            console.log(e)
        } 
}

正在向控制台输出异常消息window:

[0-0] { AssertionError: expected 'Thank You for your Message!' to equal 'Thank You for your Message!2'
    at ContactUs_Page.confirmSuccessfulSubmission (C:\Users\GBruno\Desktop\webdriverioFramework\pageObjects\ContactUs_Page.js:51:34)
    at <anonymous>
    at process._tickDomainCallback (internal/process/next_tick.js:229:7)
  message: 'expected \'Thank You for your Message!\' to equal \'Thank You for your Message!2\'',
  showDiff: true,
  actual: 'Thank You for your Message!',
  expected: 'Thank You for your Message!2' }

Answer 1

为了使您的测试失败，测试运行器（我假设它是 webdriverio）必须收到 AssertionError。在您的测试中，chai 将在这一行中抛出该错误：

expect(value).to.equal("Thank You for your Message!2");

但你在这里抓住了它：

catch(e) {
        console.log(e)
    }

所以它永远不会到达测试运行器，测试也不会失败。试试这个代码：

async confirmSuccessfulSubmission() {
try {
    let value = await $("#contact_reply h1").getText()
    expect(value).to.equal("Thank You for your Message!2"); 
    } catch(e) {
        console.log(e)
        throw(e)
    } 
}

或者如果您不需要打印错误：

async confirmSuccessfulSubmission() {
    let value = await $("#contact_reply h1").getText()
    expect(value).to.equal("Thank You for your Message!2"); 
}

Chai 断言不会使用异步命令失败？

Chai assertion doesn't fail using async command?

javascript

node.js

selenium

webdriver-io