使用Capybara + Rails3找不到要单击的元素 [英] Can't find element to click on using Capybara + Rails3

问题描述

背景：我正在使用Capybara和Rspec来测试Rails 3应用。
使用的驱动程序：硒

Background: I'm using Capybara with Rspec to test a Rails 3 app. Driver used: Selenium

问题：
我找不到登录按钮，以便在我的测试中单击。

Problem: I can't find the "Sign in" button in order to click on from within my test.

HTML代码：

<form accept-charset="UTF-8" action="/" class="filter_form" id="login" method="post">
        <fieldset>
          <div class="modal-body">
            <div class="clearfix login-fields">
              <label for="user_email">Email</label>
              <div class="input login-inputs">
                <input class="input-text" id="user_email" name="user[email]" placeholder="email" size="30" type="email" value="">
              </div>
            </div>
            <div class="clearfix login-fields">
              <label for="user_password">Password</label>
              <div class="input login-inputs">
                <input class="input-text" id="user_password" name="user[password]" placeholder="password" size="30" type="password">
              </div>
            </div>
          </div>
          <div class="modal-footer">
            <input class="btn btn-primary login_btn" id="btn_login" name="commit" type="submit" value="Sign in">
            <a href="/lms/forgot_password" class="btn">Forgot password...</a>
            <a href="#" class="btn close cancel" data-dismiss="modal">Cancel</a>
          </div>
        </fieldset>
</form>

失败测试

it "should login correctly if the right credentials are given", :js => true do

    Capybara.default_wait_time = 5
    Capybara.reset_sessions!
    visit '/'
    click_link('login_link') #this will bring a modal window with the code posted above using js
    within("#login") do
      fill_in 'user_email', :with => "[e-mail]"
      fill_in 'user_password', :with => "mypwd"
    end

    response.should have_selector('input#btn_login') #This passes
    click_on("input#btn_login") #Here it fails, saying it can't find an element with that selector
    response.should have_selector(:xpath, '//div[@class="alert-message block-message info"]')
  end

我的测试文件位于 spec / requests 之内。

My test file is inside spec/requests.

有什么想法吗？
谢谢！

Any ideas? Thanks!

推荐答案

请尝试以下操作：

page.find("#btn_login").click

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