設置方法的無效參數錯誤

Question

我正在使用watir和ruby編寫頁面對象模式UI框架。 直到我進行捆綁更新之前，它都運行良好

我有一個代表這樣的頁面的yml文件

username:
 field: text_field
 attribute: name
 value: username
 default:
 operations:
  - exists?
  - set

以及一個頁面對象方法生成器

def generate(elements)
    elements.each do |element|
        element[1]['operations'].each do |operation|
            if operation.eql? 'set'
                default = element[1]['default']
                self.class.send(:define_method, "#{element[0]}_#{operation}") do |default=''|
                    @b.send(element[1]['field'], element[1]['attribute'].to_sym, element[1]['value']).send(operation, default)
                end
            else
                self.class.send(:define_method, "#{element[0]}_#{operation}") do
                    @b.send(element[1]['field'], element[1]['attribute'].to_sym, element[1]['value']).send(operation)
                end
            end
        end
    end
end

當我針對chrome進行watir測試時，這似乎工作正常。 但是，當我的瀏覽器是Firefox時，出現了錯誤Expected [object Undefined] undefined to be a string (Selenium::WebDriver::Error::InvalidArgumentError)

生成方法中的第6行拋出該錯誤

這就是我將yml傳遞給generate方法的方式

def initialize(browser)
    file_path = File.expand_path("../config/signin.yml", __FILE__)
    elements = YAML.load(File.read(file_path));
    super(browser, elements)
end

watir版本6.8.0 selenium-webdriver版本3.5.1 geckodriver-helper 0.0.3

更新

完整的堆棧跟蹤：

http://127.0.0.1:4444/session/02500e7f-0c52-1e40-b151-39b2d857d17f/execute/sync | {"script":"return (function(){return function(){var d=this;function f(a){return\"string\"==typeof a};function h(a,b){this.code=a;this.a=l[a]||m;this.message=b||\"\";a=this.a.replace(/((?:^|\\s+)[a-z])/g,function(a){return a.toUpperCase().replace(/^[\\s\\xa0]+/g,\"\")});b=a.length-5;if(0>b||a.indexOf(\"Error\",b)!=b)a+=\"Error\";this.name=a;a=Error(this.message);a.name=this.name;this.stack=a.stack||\"\"}\n(function(){var a=Error;function b(){}b.prototype=a.prototype;h.b=a.prototype;h.prototype=new b;h.prototype.constructor=h;h.a=function(b,c,g){for(var e=Array(arguments.length-2),k=2;k<arguments.length;k++)e[k-2]=arguments[k];return a.prototype[c].apply(b,e)}})();var m=\"unknown error\",l={15:\"element not selectable\",11:\"element not visible\"};l[31]=m;l[30]=m;l[24]=\"invalid cookie domain\";l[29]=\"invalid element coordinates\";l[12]=\"invalid element state\";l[32]=\"invalid selector\";l[51]=\"invalid selector\";\nl[52]=\"invalid selector\";l[17]=\"javascript error\";l[405]=\"unsupported operation\";l[34]=\"move target out of bounds\";l[27]=\"no such alert\";l[7]=\"no such element\";l[8]=\"no such frame\";l[23]=\"no such window\";l[28]=\"script timeout\";l[33]=\"session not created\";l[10]=\"stale element reference\";l[21]=\"timeout\";l[25]=\"unable to set cookie\";l[26]=\"unexpected alert open\";l[13]=m;l[9]=\"unknown command\";h.prototype.toString=function(){return this.name+\": \"+this.message};var n;a:{var p=d.navigator;if(p){var q=p.userAgent;if(q){n=q;break a}}n=\"\"}function r(a){return-1!=n.indexOf(a)};function t(a,b){for(var e=a.length,c=f(a)?a.split(\"\"):a,g=0;g<e;g++)g in c&&b.call(void 0,c[g],g,a)};function v(){return r(\"iPhone\")&&!r(\"iPod\")&&!r(\"iPad\")};function w(){return(r(\"Chrome\")||r(\"CriOS\"))&&!r(\"Edge\")};var x=r(\"Opera\"),y=r(\"Trident\")||r(\"MSIE\"),z=r(\"Edge\"),A=r(\"Gecko\")&&!(-1!=n.toLowerCase().indexOf(\"webkit\")&&!r(\"Edge\"))&&!(r(\"Trident\")||r(\"MSIE\"))&&!r(\"Edge\"),aa=-1!=n.toLowerCase().indexOf(\"webkit\")&&!r(\"Edge\");function B(){var a=d.document;return a?a.documentMode:void 0}var C;\na:{var D=\"\",E=function(){var a=n;if(A)return/rv\\:([^\\);]+)(\\)|;)/.exec(a);if(z)return/Edge\\/([\\d\\.]+)/.exec(a);if(y)return/\\b(?:MSIE|rv)[: ]([^\\);]+)(\\)|;)/.exec(a);if(aa)return/WebKit\\/(\\S+)/.exec(a);if(x)return/(?:Version)[ \\/]?(\\S+)/.exec(a)}();E&&(D=E?E[1]:\"\");if(y){var F=B();if(null!=F&&F>parseFloat(D)){C=String(F);break a}}C=D}var G;var H=d.document;G=H&&y?B()||(\"CSS1Compat\"==H.compatMode?parseInt(C,10):5):void 0;var ba=r(\"Firefox\"),ca=v()||r(\"iPod\"),da=r(\"iPad\"),I=r(\"Android\")&&!(w()||r(\"Firefox\")||r(\"Opera\")||r(\"Silk\")),ea=w(),J=r(\"Safari\")&&!(w()||r(\"Coast\")||r(\"Opera\")||r(\"Edge\")||r(\"Silk\")||r(\"Android\"))&&!(v()||r(\"iPad\")||r(\"iPod\"));function K(a){return(a=a.exec(n))?a[1]:\"\"}(function(){if(ba)return K(/Firefox\\/([0-9.]+)/);if(y||z||x)return C;if(ea)return v()||r(\"iPad\")||r(\"iPod\")?K(/CriOS\\/([0-9.]+)/):K(/Chrome\\/([0-9.]+)/);if(J&&!(v()||r(\"iPad\")||r(\"iPod\")))return K(/Version\\/([0-9.]+)/);if(ca||da){var a=/Version\\/(\\S+).*Mobile\\/(\\S+)/.exec(n);if(a)return a[1]+\".\"+a[2]}else if(I)return(a=K(/Android\\s+([0-9.]+)/))?a:K(/Version\\/([0-9.]+)/);return\"\"})();var L,M=function(){if(!A)return!1;var a=d.Components;if(!a)return!1;try{if(!a.classes)return!1}catch(g){return!1}var b=a.classes,a=a.interfaces,e=b[\"@mozilla.org/xpcom/version-comparator;1\"].getService(a.nsIVersionComparator),c=b[\"@mozilla.org/xre/app-info;1\"].getService(a.nsIXULAppInfo).version;L=function(a){e.compare(c,\"\"+a)};return!0}(),N=y&&!(8<=Number(G)),fa=y&&!(9<=Number(G));I&&M&&L(2.3);I&&M&&L(4);J&&M&&L(6);var ga={SCRIPT:1,STYLE:1,HEAD:1,IFRAME:1,OBJECT:1},O={IMG:\" \",BR:\"\\n\"};function P(a,b,e){if(!(a.nodeName in ga))if(3==a.nodeType)e?b.push(String(a.nodeValue).replace(/(\\r\\n|\\r|\\n)/g,\"\")):b.push(a.nodeValue);else if(a.nodeName in O)b.push(O[a.nodeName]);else for(a=a.firstChild;a;)P(a,b,e),a=a.nextSibling};function Q(a,b){b=b.toLowerCase();return\"style\"==b?ha(a.style.cssText):N&&\"value\"==b&&R(a,\"INPUT\")?a.value:fa&&!0===a[b]?String(a.getAttribute(b)):(a=a.getAttributeNode(b))&&a.specified?a.value:null}var ia=/[;]+(?=(?:(?:[^\"]*\"){2})*[^\"]*$)(?=(?:(?:[^']*'){2})*[^']*$)(?=(?:[^()]*\\([^()]*\\))*[^()]*$)/;\nfunction ha(a){var b=[];t(a.split(ia),function(a){var c=a.indexOf(\":\");0<c&&(a=[a.slice(0,c),a.slice(c+1)],2==a.length&&b.push(a[0].toLowerCase(),\":\",a[1],\";\"))});b=b.join(\"\");return b=\";\"==b.charAt(b.length-1)?b:b+\";\"}function S(a,b){N&&\"value\"==b&&R(a,\"OPTION\")&&null===Q(a,\"value\")?(b=[],P(a,b,!1),a=b.join(\"\")):a=a[b];return a}function R(a,b){b&&\"string\"!==typeof b&&(b=b.toString());return!!a&&1==a.nodeType&&(!b||a.tagName.toUpperCase()==b)}\nfunction T(a){return R(a,\"OPTION\")?!0:R(a,\"INPUT\")?(a=a.type.toLowerCase(),\"checkbox\"==a||\"radio\"==a):!1};var ja={\"class\":\"className\",readonly:\"readOnly\"},U=\"async autofocus autoplay checked compact complete controls declare defaultchecked defaultselected defer disabled draggable ended formnovalidate hidden indeterminate iscontenteditable ismap itemscope loop multiple muted nohref noresize noshade novalidate nowrap open paused pubdate readonly required reversed scoped seamless seeking selected spellcheck truespeed willvalidate\".split(\" \");function V(a,b){var e=null,c=b.toLowerCase();if(\"style\"==c)return(e=a.style)&&!f(e)&&(e=e.cssText),e;if((\"selected\"==c||\"checked\"==c)&&T(a)){if(!T(a))throw new h(15,\"Element is not selectable\");b=\"selected\";e=a.type&&a.type.toLowerCase();if(\"checkbox\"==e||\"radio\"==e)b=\"checked\";return S(a,b)?\"true\":null}var g=R(a,\"A\");if(R(a,\"IMG\")&&\"src\"==c||g&&\"href\"==c)return(e=Q(a,c))&&(e=S(a,c)),e;if(\"spellcheck\"==c){e=Q(a,c);if(null!==e){if(\"false\"==e.toLowerCase())return\"false\";if(\"true\"==e.toLowerCase())return\"true\"}return S(a,\nc)+\"\"}g=ja[b]||b;a:if(f(U))c=f(c)&&1==c.length?U.indexOf(c,0):-1;else{for(var u=0;u<U.length;u++)if(u in U&&U[u]===c){c=u;break a}c=-1}if(0<=c)return(e=null!==Q(a,b)||S(a,g))?\"true\":null;try{var k=S(a,g)}catch(ka){}(c=null==k)||(c=typeof k,c=\"object\"==c&&null!=k||\"function\"==c);c?e=Q(a,b):e=k;return null!=e?e.toString():null}var W=[\"_\"],X=d;W[0]in X||!X.execScript||X.execScript(\"var \"+W[0]);\nfor(var Y;W.length&&(Y=W.shift());){var Z;if(Z=!W.length)Z=void 0!==V;Z?X[Y]=V:X[Y]&&X[Y]!==Object.prototype[Y]?X=X[Y]:X=X[Y]={}};; return this._.apply(null,arguments);}.apply({navigator:typeof window!='undefined'?window.navigator:null,document:typeof window!='undefined'?window.document:null}, arguments);}\n).apply(null, arguments)","args":[{"element-6066-11e4-a52e-4f735466cecf":"cae111e7-8b5a-6747-8835-b4fa9d8d0c42"},"readOnly"]}
2017-09-01 15:04:51 DEBUG Selenium      > {"Accept"=>"application/json", "Content-Type"=>"application/json; charset=utf-8", "Content-Length"=>"6725"}
2017-09-01 15:04:51 INFO Selenium <- {"value":null}
2017-09-01 15:04:51 INFO Selenium -> POST session/02500e7f-0c52-1e40-b151-39b2d857d17f/element/cae111e7-8b5a-6747-8835-b4fa9d8d0c42/clear
2017-09-01 15:04:51 INFO Selenium <- {"value": {}}
2017-09-01 15:04:51 INFO Selenium -> POST session/02500e7f-0c52-1e40-b151-39b2d857d17f/element/cae111e7-8b5a-6747-8835-b4fa9d8d0c42/value
2017-09-01 15:04:51 INFO Selenium    >>> http://127.0.0.1:4444/session/02500e7f-0c52-1e40-b151-39b2d857d17f/element/cae111e7-8b5a-6747-8835-b4fa9d8d0c42/value | {"value":["s","a","n","d","e","e","p",".","k","u","m","a","r","@","v","o","c","u","s",".","c","o","m",".","a","u"],"text":"sandeep.kumar@vocus.com.au"}
2017-09-01 15:04:51 DEBUG Selenium      > {"Accept"=>"application/json", "Content-Type"=>"application/json; charset=utf-8", "Content-Length"=>"151"}
2017-09-01 15:04:51 INFO Selenium <- {"value":{"error":"invalid argument","message":"Expected [object Undefined] undefined to be a string","stacktrace":"stack backtrace:\n   0:        0x10f2b179e - backtrace::backtrace::trace::h5d936e38aaf1110e\n   1:        0x10f2b1edc - backtrace::capture::Backtrace::new::h90c05c8c72e0f6cd\n   2:        0x10f1f5ca0 - geckodriver::marionette::MarionetteSession::response::h08aa31b0bbd51dd7\n   3:        0x10f1f3655 - _$LT$geckodriver..marionette..MarionetteHandler$u20$as$u20$webdriver..server..WebDriverHandler$LT$geckodriver..marionette..GeckoExtensionRoute$GT$$GT$::handle_command::h5bcbc41bc7c51981\n   4:        0x10f1c1830 - std::panicking::try::do_call::h532e0d8672b70b60\n   5:        0x10f33270a - __rust_maybe_catch_panic\n   6:        0x10f1d2896 - _$LT$F$u20$as$u20$alloc..boxed..FnBox$LT$A$GT$$GT$::call_box::h4a379663166b1095\n   7:        0x10f330ba4 - std::sys::imp::thread::Thread::new::thread_start::hf410a68837ea407b\n   8:     0x7fffcbbff93a - _pthread_body\n   9:     0x7fffcbbff886 - _pthread_start"}}
  Scenario: QB Ethernet UI validations # features/ui_validations_vocusone.feature:13
    Given QB Ethernet UI validations   # features/step_definitions/ui_validations_vocusone.rb:61
      Expected [object Undefined] undefined to be a string (Selenium::WebDriver::Error::InvalidArgumentError)
      ./features/support/pages/page.rb:35:in `block (3 levels) in generate'
      ./features/step_definitions/ui_validations_vocusone.rb:63:in `/^QB Ethernet UI validations$/'
      features/ui_validations_vocusone.feature:14:in `Given QB Ethernet UI validations'
2017-09-01 15:04:51 INFO Selenium -> DELETE session/02500e7f-0c52-1e40-b151-39b2d857d17f
1504242291281   Marionette      INFO    New connections will no longer be accepted
2017-09-01 15:04:51 INFO Selenium <- {"value": {}}

Answer 1

我看着自己發布的問題以及代碼。 意識到我提到bundle update將可執行代碼搞砸了之后，我看了看我的Gemfile 。 我能夠找到罪魁禍首是geckodriver-helper ，它破壞了我通過homebrew安裝的geckodriver 。

經驗教訓：通過自制軟件或gemfile安裝，但不能同時安裝