如何使用水豚检查表单字段是否正确填充？ [英] How can I check that a form field is prefilled correctly using capybara?

问题描述

我有一个带有适当标签的字段，可以毫无问题地用水豚填写：

I have a field with a proper label that I can fill in with capybara without a problem:

fill_in 'Your name', with: 'John'

我想在填写之前先检查其值

I'd like to check the value it has before filling it in and can't figure it out.

如果我在 fill_in 之后添加以下行：

If I add after the fill_in the following line:

find_field('Your name').should have_content('John')

该测试失败了，尽管正如我通过保存页面验证的那样，之前的填充工作正常。

That test fails, although the filling just before worked as I've verified by saving the page.

什么我想念吗？

推荐答案

您可以使用 xpath查询检查是否有 input 具有特定值的元素（例如'John'）：

You can use an xpath query to check if there's an input element with a particular value (e.g. 'John'):

expect(page).to have_xpath("//input[@value='John']")

请参见< a href = http://www.w3schools.com/xpath/xpath_syntax.asp rel = noreferrer> http://www.w3schools.com/xpath/xpath_syntax.asp 有关更多信息。

也许更漂亮：

expect(find_field('Your name').value).to eq 'John'

编辑：如今我可能会使用have_selector

Nowadays I'd probably use have_selector

expect(page).to have_selector("input[value='John']")

如果使用的是页面对象模式（应该是！）

If you are using the page object pattern(you should be!)

class MyPage < SitePrism::Page
  element :my_field, "input#my_id"

  def has_secret_value?(value)
    my_field.value == value
  end
end

my_page = MyPage.new

expect(my_page).to have_secret_value "foo"

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