ページ上の要素の存在を確認しているだけです。
sleep 5 # for the page load
form.wait_until_present
next if form.span(:class => "SSSMSGWARNINGTEXT").exists?
form
次の 2 行に由来します。
browser.goto browser.frame(:name => "TargetContent").src
form = browser.form(:name => "win1")
前のページと現在のページの両方がform
存在するため、新しいページがあることを確認するためにスリープを追加しました。ただし、私のプログラムはまだエラーでクラッシュします:
[remote server] resource://fxdriver/modules/web_element_cache.js:5665:in `unknown': Element not found in the cache - perhaps the page has changed since it was looked up (Selenium::WebDriver::Error::StaleElementReferenceError)
from [remote server] file:///var/folders/80/_bwll9x91h7d6c5dp2d3fbb00000gr/T/webdriver-profile20120724-63693-194o52g/extensions/fxdriver@googlecode.com/components/driver_component.js:5354:in `unknown'
from [remote server] file:///var/folders/80/_bwll9x91h7d6c5dp2d3fbb00000gr/T/webdriver-profile20120724-63693-194o52g/extensions/fxdriver@googlecode.com/components/driver_component.js:6597:in `unknown'
from [remote server] file:///var/folders/80/_bwll9x91h7d6c5dp2d3fbb00000gr/T/webdriver-profile20120724-63693-194o52g/extensions/fxdriver@googlecode.com/components/driver_component.js:471:in `unknown'
from /Users/amosng/.rvm/gems/ruby-1.8.7-p370/gems/selenium-webdriver-2.25.0/lib/selenium/webdriver/remote/response.rb:52:in `assert_ok'
from /Users/amosng/.rvm/gems/ruby-1.8.7-p370/gems/selenium-webdriver-2.25.0/lib/selenium/webdriver/remote/response.rb:15:in `initialize'
from /Users/amosng/.rvm/gems/ruby-1.8.7-p370/gems/selenium-webdriver-2.25.0/lib/selenium/webdriver/remote/http/common.rb:59:in `new'
from /Users/amosng/.rvm/gems/ruby-1.8.7-p370/gems/selenium-webdriver-2.25.0/lib/selenium/webdriver/remote/http/common.rb:59:in `create_response'
from /Users/amosng/.rvm/gems/ruby-1.8.7-p370/gems/selenium-webdriver-2.25.0/lib/selenium/webdriver/remote/http/default.rb:65:in `request'
from /Users/amosng/.rvm/gems/ruby-1.8.7-p370/gems/selenium-webdriver-2.25.0/lib/selenium/webdriver/remote/http/common.rb:40:in `call'
from /Users/amosng/.rvm/gems/ruby-1.8.7-p370/gems/selenium-webdriver-2.25.0/lib/selenium/webdriver/remote/bridge.rb:598:in `raw_execute'
from /Users/amosng/.rvm/gems/ruby-1.8.7-p370/gems/selenium-webdriver-2.25.0/lib/selenium/webdriver/remote/bridge.rb:576:in `execute'
from /Users/amosng/.rvm/gems/ruby-1.8.7-p370/gems/selenium-webdriver-2.25.0/lib/selenium/webdriver/remote/bridge.rb:542:in `find_element_by'
from /Users/amosng/.rvm/gems/ruby-1.8.7-p370/gems/selenium-webdriver-2.25.0/lib/selenium/webdriver/common/search_context.rb:42:in `find_element'
from /Users/amosng/.rvm/gems/ruby-1.8.7-p370/gems/watir-webdriver-0.6.1/lib/watir-webdriver/locators/element_locator.rb:85:in `find_first_by_multiple'
from /Users/amosng/.rvm/gems/ruby-1.8.7-p370/gems/watir-webdriver-0.6.1/lib/watir-webdriver/locators/element_locator.rb:32:in `locate'
from /Users/amosng/.rvm/gems/ruby-1.8.7-p370/gems/watir-webdriver-0.6.1/lib/watir-webdriver/elements/element.rb:384:in `locate'
from /Users/amosng/.rvm/gems/ruby-1.8.7-p370/gems/watir-webdriver-0.6.1/lib/watir-webdriver/elements/element.rb:362:in `assert_exists'
from /Users/amosng/.rvm/gems/ruby-1.8.7-p370/gems/watir-webdriver-0.6.1/lib/watir-webdriver/elements/element.rb:37:in `exists?'
from ./my-script.rb:123:in `foo'
特定の要素が存在するかどうかを知りたいだけの場合、何がエラーをスローする可能性がありますか?
編集:したがって、待機時間を10秒に延長すると問題が解決するようです。そのページにはたくさんの Javascript があるため、 が実行されたときにページのリロードが開始されていない可能性があり、 が実行されform.wait_until_present
たときに、next if form.span(:class => "SSSMSGWARNINGTEXT").exists?
ページのロードの間にフォームが存在しなくなっていると思います。少なくともそれが、このクラッシュについて私が考えることができる唯一の理由です...
しかし問題は、このようにページがリロードされる場所がいくつかあることです。どこでも 10 秒のスリープを追加すると、耐えられないクロールまで遅くなります。ページが完全にリロードされたことをプログラムに検出させるにはどうすればよいですか?
EDIT 2form
:ページがリロードされるたびに設定を試みました:
...
form = browser.form(:name => "win1")
form.wait_until_present
form.a(:id => "CLASS_SRCH_WRK2_SSR_PB_CLASS_SRCH").click
form = browser.form(:name => "win1")
form.wait_until_present
form.input(:id => "#ICSave").click if form.input(:id => "#ICSave").exists?
form = browser.form(:name => "win1")
form.wait_until_present
...
それでも同様のエラー:
[remote server] resource://fxdriver/modules/web_element_cache.js:5665:in `unknown': Element not found in the cache - perhaps the page has changed since it was looked up (Selenium::WebDriver::Error::StaleElementReferenceError)
from [remote server] file:///var/folders/80/_bwll9x91h7d6c5dp2d3fbb00000gr/T/webdriver-profile20120725-47093-y3nzl8/extensions/fxdriver@googlecode.com/components/driver_component.js:5354:in `unknown'
from [remote server] file:///var/folders/80/_bwll9x91h7d6c5dp2d3fbb00000gr/T/webdriver-profile20120725-47093-y3nzl8/extensions/fxdriver@googlecode.com/components/driver_component.js:6597:in `unknown'
from [remote server] file:///var/folders/80/_bwll9x91h7d6c5dp2d3fbb00000gr/T/webdriver-profile20120725-47093-y3nzl8/extensions/fxdriver@googlecode.com/components/driver_component.js:471:in `unknown'
from /Users/amosng/.rvm/gems/ruby-1.9.3-p194/gems/selenium-webdriver-2.25.0/lib/selenium/webdriver/remote/response.rb:52:in `assert_ok'
from /Users/amosng/.rvm/gems/ruby-1.9.3-p194/gems/selenium-webdriver-2.25.0/lib/selenium/webdriver/remote/response.rb:15:in `initialize'
from /Users/amosng/.rvm/gems/ruby-1.9.3-p194/gems/selenium-webdriver-2.25.0/lib/selenium/webdriver/remote/http/common.rb:59:in `new'
from /Users/amosng/.rvm/gems/ruby-1.9.3-p194/gems/selenium-webdriver-2.25.0/lib/selenium/webdriver/remote/http/common.rb:59:in `create_response'
from /Users/amosng/.rvm/gems/ruby-1.9.3-p194/gems/selenium-webdriver-2.25.0/lib/selenium/webdriver/remote/http/default.rb:65:in `request'
from /Users/amosng/.rvm/gems/ruby-1.9.3-p194/gems/selenium-webdriver-2.25.0/lib/selenium/webdriver/remote/http/common.rb:40:in `call'
from /Users/amosng/.rvm/gems/ruby-1.9.3-p194/gems/selenium-webdriver-2.25.0/lib/selenium/webdriver/remote/bridge.rb:598:in `raw_execute'
from /Users/amosng/.rvm/gems/ruby-1.9.3-p194/gems/selenium-webdriver-2.25.0/lib/selenium/webdriver/remote/bridge.rb:576:in `execute'
from /Users/amosng/.rvm/gems/ruby-1.9.3-p194/gems/selenium-webdriver-2.25.0/lib/selenium/webdriver/remote/bridge.rb:542:in `find_element_by'
from /Users/amosng/.rvm/gems/ruby-1.9.3-p194/gems/selenium-webdriver-2.25.0/lib/selenium/webdriver/common/search_context.rb:42:in `find_element'
from /Users/amosng/.rvm/gems/ruby-1.9.3-p194/gems/watir-webdriver-0.6.1/lib/watir-webdriver/locators/element_locator.rb:247:in `by_id'
from /Users/amosng/.rvm/gems/ruby-1.9.3-p194/gems/watir-webdriver-0.6.1/lib/watir-webdriver/locators/element_locator.rb:26:in `locate'
from /Users/amosng/.rvm/gems/ruby-1.9.3-p194/gems/watir-webdriver-0.6.1/lib/watir-webdriver/elements/element.rb:384:in `locate'
from /Users/amosng/.rvm/gems/ruby-1.9.3-p194/gems/watir-webdriver-0.6.1/lib/watir-webdriver/elements/element.rb:362:in `assert_exists'
from /Users/amosng/.rvm/gems/ruby-1.9.3-p194/gems/watir-webdriver-0.6.1/lib/watir-webdriver/elements/element.rb:95:in `click'
from my-script.rb:471:in `block (2 levels) in foo'
...
EDIT 3 :テストスクリプト全体は次のとおりです。
require 'watir-webdriver'
def foo
browser = Watir::Browser.new
browser.driver.manage.timeouts.implicit_wait = 3
browser.goto "http://schedule.arizona.edu"
browser.form(:name => "win1").select_list(:name => "CLASS_SRCH_WRK2_STRM$54$").option(:index => 2).select
browser.goto browser.frame(:name => "TargetContent").src
form = browser.form(:name => "win1")
term_select_list = form.select_list(:name => "CLASS_SRCH_WRK2_STRM$54$")
(1..browser.form(:name => "win1").select_list(:name => "CLASS_SRCH_WRK2_STRM$54$").options.count - 1).each do |term_index|
(1..term_select_list.options.count - 1).each do |subj_index|
term_select_list.option(:index => term_index).select
sleep 1
form.select_list(:name => "CLASS_SRCH_WRK2_SUBJECT$67$").option(:index => subj_index).select
sleep 1
form.checkbox(:id => "CLASS_SRCH_WRK2_SSR_OPEN_ONLY").click
sleep 1
form.a(:id => "CLASS_SRCH_WRK2_SSR_PB_CLASS_SRCH").click
sleep 1
form.input(:id => "#ICSave").click if form.input(:id => "#ICSave").exists?
sleep 10
form.wait_until_present
next if form.span(:class => "SSSMSGWARNINGTEXT").exists?
puts "got the form I want!!! do something with it: #{form.html[0..10]}"
form.a(:id => "CLASS_SRCH_WRK2_SSR_PB_NEW_SEARCH").click
sleep 1
form.wait_until_present
end
end
browser.close
GC.start
end
foo
ACCT に到達するまではクラッシュしますが、ACCT に到達すると確実にクラッシュします (私にとっては)。
form.wait_until_present
任意のスリープの代わりに使用するスクリプト:
require 'watir-webdriver'
def foo
browser = Watir::Browser.new
browser.driver.manage.timeouts.implicit_wait = 3
browser.goto "http://schedule.arizona.edu"
browser.form(:name => "win1").select_list(:name => "CLASS_SRCH_WRK2_STRM$54$").option(:index => 2).select
browser.goto browser.frame(:name => "TargetContent").src
form = browser.form(:name => "win1")
term_select_list = form.select_list(:name => "CLASS_SRCH_WRK2_STRM$54$")
(1..browser.form(:name => "win1").select_list(:name => "CLASS_SRCH_WRK2_STRM$54$").options.count - 1).each do |term_index|
(1..term_select_list.options.count - 1).each do |subj_index|
term_select_list.option(:index => term_index).select
form = browser.form(:name => "win1")
form.wait_until_present
form.select_list(:name => "CLASS_SRCH_WRK2_SUBJECT$67$").option(:index => subj_index).select
form = browser.form(:name => "win1")
form.wait_until_present
form.checkbox(:id => "CLASS_SRCH_WRK2_SSR_OPEN_ONLY").click
form = browser.form(:name => "win1")
form.wait_until_present
form.a(:id => "CLASS_SRCH_WRK2_SSR_PB_CLASS_SRCH").click
form = browser.form(:name => "win1")
form.wait_until_present
form.input(:id => "#ICSave").click if form.input(:id => "#ICSave").exists?
form = browser.form(:name => "win1")
form.wait_until_present
next if form.span(:class => "SSSMSGWARNINGTEXT").exists?
puts "got the form I want!!! do something with it: #{form.html[0..10]}"
form.a(:id => "CLASS_SRCH_WRK2_SSR_PB_NEW_SEARCH").click
form = browser.form(:name => "win1")
form.wait_until_present
end
end
browser.close
GC.start
end
foo
ABE に到達する前にクラッシュします。