错误:无法调用已删除的QObject函数

时间:2014-02-21 14:29:35

标签: javascript testing web phantomjs casperjs

我有一个网页,可以在点击按钮时弹出一个弹出窗口。新弹出窗口有另一个按钮,点击弹出按钮后弹出窗口关闭,父窗口重新加载到新页面。

如果我没有重新加载我的父窗口,我正在

FAIL Error: cannot access member `evaluate' of deleted QObject
#    type: uncaughtError
#    error: "Error: cannot access member `evaluate' of deleted QObject"
#    merge: undefined
Error: cannot access member `evaluate' of deleted QObject

如果我重新加载,就没有这样的错误,但casperjs脚本只是卡住而没有执行进一步的步骤。

这是我的要求 我想点击open popup,然后再次点击弹出后点击close me按钮。当父窗口重新加载时,获取重新加载页面的内容。

以下是我的代码

1.主页:

<?php

session_start();
$newPage = isset($_SESSION['newpage']) ? $_SESSION['newpage'] : "";
?>
<script type="text/javascript" src="https://code.jquery.com/jquery-1.11.0.min.js"></script>
<script type="text/javascript">
jQuery(document).ready(function() {
    setTimeout(function() {
        console.log("NEW PAGE URL = <?php echo $newPage; ?>");
        if ("<?php echo $newPage; ?>" != "") {
            location = "<?php echo $newPage; ?>";
        }
    }, 10000);
});
</script>
<button onclick="window.open('popup.php');">Click me</button>

2.popup page:

<?php
session_start();
$_SESSION['newpage'] = 'newpage.php';
echo $_SESSION['newpage'];
?>
<head>
    <title>Popup</title>
</head>
<button onclick="window.close();window.opener.location.reload();"  class="popupbutton">Close me</button>

3.新页面(重新加载页面):

<?php
session_start();
$_SESSION['newpage'] = '';
?>
<head>
    <title>Newpage</title>
</head>
This is new page.
<button onclick="location = 'index.php';" class="popupbutton">Go back</button>

我尝试过与https://github.com/n1k0/casperjs/issues/644相同,但它没有用。所以,我修改了代码如下:这不是没有给出预期的结果。

Casper脚本

var casper = require('casper').create({
    verbose: true,
    logLevel: 'debug'
});
var popupClosed = false;
var popupOpened = false;
casper.on('popup.closed', function() {
    this.echo("POPUP CLOSED");
    popupClosed = true;
    this.log(casper.popups.length);
    this.echo("Page: " + this.getTitle());
    this.echo("URL = " + this.getCurrentUrl());
    this.then(function() {
        this.echo(this.evaluate(function() {
            return document.documentElement.innerHTML;
        }));
    });
    this.open('http://localhost/sample-app/index.php');
    this.then(function() {
        this.echo(this.getPageContent());
    })
});

casper.on('navigation.requested', function() {
    this.echo("===" + this.getCurrentUrl() + this.getCurrentUrl().indexOf("newpage") > -1);
    casper.echo(this.getPageContent());
    if (this.getCurrentUrl().indexOf("newpage") > -1) {
        casper.then(function() {
            this.echo(this.evaluate(function() {
                return document.documentElement.innerHTML;
            }));
        });
    }
});

    casper.start('http://localhost/sample-app/index.php');
    casper.then(functi

on() {
    this.waitForSelector("button", function() {
        this.echo("URL = " + this.getCurrentUrl());
        this.thenClick("button", function() {
            this.echo("click to open popup");
        });
        casper.waitForPopup(/popup\.php/gi, function() {
            popupClosed = false;
            popupOpened = true;

        });
        casper.waitFor(function() {
            return popupOpened;
        }, function() {
            casper.withPopup(/popup\.php/gi, function() {
                this.echo("Popup url: " + this.getTitle() + ", " + this.getCurrentUrl());
                this.waitForSelector("button.popupbutton", function() {
                    this.click("button.popupbutton");
                }, function() {
                    this.log("No button on popup");
                });
            });
        }, function() {
            this.echo("Wait TIMEOUT");
        }, 60000);


        casper.then(function() {
            this.echo("Its here...");
            this.waitFor(function() {
                return popupClosed;
            }, function() {
                this.echo("Page: " + this.getTitle());
            }, function() {
                this.echo("TIME OUT");
            }, 60000);
        });
    }, function() {
    });
    this.log("COMPLETED");
});

casper.run(function() {
    this.exit();
});

版本:phantomjs -1.9 casperjs - 1.0.2。

1 个答案:

答案 0 :(得分:0)

您的casperjs代码存在多个问题。

首先:永远不会调用casper.on事件处理程序,因为您实际上从未发出任何事件。

因此,无论何时设置popupClosed = true;,您都必须致电

casper.emit("popup.closed");

您还必须在有意义的地方致电casper.emit("navigation.requested");(不在evaluate区域内)。

第二: casper.then功能和所有casper.wait*创建一个步骤,该步骤将在每个其他当前计划的步骤之后进行安排。

其他已安排的步骤可以包含页面转换,如点击或表单提交,在这种情况下,新计划的步骤将在错误的页面上执行。您的错误deleted QObject似乎直接转换为此案例。

这意味着,如果您等待弹出窗口显示以下函数,则应该减少嵌套或嵌套所有内容。

您的执行索引代码:

casper.waitFor(function() {
    return popupOpened;
}, function() {
    // executed at position 1
    casper.withPopup(/popup\.php/gi, function() {
        // executed at position 3
        this.echo("Popup url: " + this.getTitle() + ", " + this.getCurrentUrl());
        this.waitForSelector("button.popupbutton", function() {
            // executed at position 4
            this.click("button.popupbutton");
        }, function() {
            this.log("No button on popup");
        });
    });
}, function() {
    this.echo("Wait TIMEOUT");
}, 60000);


casper.then(function() {
    // executed at position 2
});

解决方案1: Unnest,但这对弹出式上下文不起作用,取决于静态等待和硬退出:

casper.waitFor(function() {
    return popupOpened;
}, function() {
    // executed at position 1
}, function() {
    this.echo("Wait TIMEOUT");
    this.exit;
}, 60000);

casper.withPopup(/popup\.php/gi, function() {
    // executed at position 2
    this.then(function(){
        this.echo("Popup url: " + this.getTitle() + ", " + this.getCurrentUrl());
    });
    this.waitForSelector("button.popupbutton");
    this.thenClick("button.popupbutton");
});

casper.then(function() {
    // executed at position 3
});

编辑:看起来,没有必要等待一段明确的时间。您也可以使用waitFor*函数,但不要进一步嵌套。请参阅这个天真方法有用的gist

解决方案2:更深入,更深入地嵌套每一步。这不适用于弹出窗口,因为上下文无法在更深层次的步骤中切换回页面。