I am trying to manipulate jmeter test plan in a web based tool. The problem is, it converts many characters to implicitly. For example " converts to ",
converts to newline.
I observed that, if i open that modified file from jmeter ui and save it without doing anything, all the characters are converted back to original. For example " converts to ".
So is it possible to do this automatically using jquery/javascript. I am using angularjs with node.js for my application. I would prefer to do this open-save-close operation in background. Please suggest , how can i achieve this. is there any jmeter-plugin available which i can run from javascript/jquery ?
Many thanks in advance
You need to escape the following characters in XML, otherwise it will result into invalid markup.
"
'
<
>
&
Given you use NodeJS you can use xml-escape function to do the trick for you.
JMeter provides __escapeXML() function out of the box just in case you're looking for Java-based implementation, see Apache JMeter Functions - An Introduction article to get familiarized with JMeter Functions concept.
What jmeter is doing with XML is correct and is done by the library XStream.
JMeter manipulate Java Objects and serializes them using XStream.
I am not sure what you are trying to do, but I don't think it is correct in terms of maintainability, indeed JMeter doesn't provide any contract on XML (XSD or DTD). Test plans should be manipulated through Java.
As far as I know, you cannot manipulate it through javascript, but you can potentially use this DSL to manipulate/generate test plans:
https://github.com/flood-io/ruby-jmeter
Related
I'm building an NLP classifier in python and would like to build a hosting HTML page for a demo. I want to test on a sample text to see the prediction and this is implemented in python through tokenizing the text and then padding it before predicting. Like this:
tf.tokenizer.texts_to_sequences(text)
token_list = tf.tokenizer.texts_to_sequences([text])[0]
token_list_padded = pad_sequences([token_list], maxlen=max_length, padding=padding_type)
The problem is that I'm new to javascript, so is there tokenization and padding methods in javascript like in python?
There is not yet a tf.tokenizer in js as there is in python.
A simple js.tokenizer has been described here. A more robust approach would be to use the tokenizer that comes with universal sentence encoder
There is no native mechanism for tokenization in Javascript.
You can use a Javascript library such as natural or wink-tokenizer or wink-nlp. The last library automatically extracts a number of token's features that may be useful in training.
I am gathering a lot of Javascript code from untrusted people and have to integrate it in my project. As is is untrusted, I would like to check if it doesn't do something nasty.
My main concern is the variables the code uses.
To check it is OK, I would like to parse all the code and verify the name of the variables. For instance, that all the variables are included in window.sandboxedVariables.
Is it possible to parse a Javascript code (in any language but preferably Javascript or bash) and get the list of all the variables ? Is it possible to do the same with the imported libraries ?
Is it possible to do with Uglify ? I read a bit the API documentation and found nothing specific.
Thank you very much !
Assuming you're talking about global variables, you can do the following:
clone the window object
load/run the untrusted script
compare the window object to the cloned one
move all newfound items into window.sandboxedVariables
However, this won't work if the untrusted script overrides one of the existing properties (variables) of window.
eslint is a JavaScript source code linting tool that lets you write custom plugins. You should be able to write a plugin that meets your needs. Plus, the plugins can be written in JavaScript.
http://eslint.org/docs/developer-guide
It is impossible to write an algorithm that verifies untrusted JavaScript code. You can parse it, you can run it in a sandbox and analyze its actions. But you can never be sure you've identified everything it might do or every variable it might use once you run it in your real environment.
If you don't trust it then either only run it in a secure sandbox or don't use it.
You could use Mozilla Rhino. It is a JavaScript engine written in Java.
Here you can find an example similar to what you are trying to do:
http://ramkulkarni.com/blog/parsing-javascript-code-using-mozilla-rhino/
I am starting to study some web technologies to integrate content, markup, layout, styling and behaviors of stuff for personal use (NOT web developing for now) and am amazed with the power of JQuery selectors and functions.
I have heard that there are some ways to use javascript "outside" a browser, to do some DOM selection, manipulation, etc. I wonder if JQuery could be used that way too.
So, what I would like to do is:
Using some programming/scripting language (I use Python), access a XML file and parse its DOM;
Programmatically manipulate and modify the DOM with javascript/jquery selectors and functions;
Save the results to (possibly another) XML file.
If you like jQuery syntax, check out pyQuery:
from pyquery import PyQuery
_ = PyQuery('<body><p></p></body>')
_("p").text("hello").css({'color': 'red'})
print _.html()
>>> <p style="color: red">hello</p>
yeah, you just need a Javascript run time.
Check out node.js
What you're looking for is called a "headless" browser.
This SO post may help:
Real headless browser
Basically you need a javascript interpreter (ex: V8) + wrapper for your language of choice (ex: pyv8). Then you can do this (from pyv8 page):
import PyV8
ctxt = PyV8.JSContext()
ctxt.enter()
ctxt.eval("1+2") # 1+2 is a javascript code
I have been researching for the standard practice to analyze the markup of a web page after javascript processing within a script or from the command line, i.e. without any browser?
This needs to happen on a Linux environment. Are the are "installables" that would allow you to pass HTML markup including javascript and it would return the markup after simulating a standard browser request and all Javascript calls have been done?
If there are any Perl Modules you can think of than that would be of even more help.
I have been looking at https://developer.mozilla.org/en/SpiderMonkey and http://search.cpan.org/~mschilli/JavaScript-SpiderMonkey-0.12/SpiderMonkey.pm but I am not sure this would allow me to pass in a full HTML document in and get the processed version with all javascript DOM manipulations back?
Please let me know.
Update, I figure it out
I figured it all out - this is what needs to be done:
#!/usr/bin/perl
use WWW::Scripter;
$w = new WWW::Scripter;
$w->use_plugin('JavaScript');
$w->get('http://www.google.com');
print $w->content(),"\n";
You have to use a browser, a new one like WWW::Scripter::Plugin::Javascript
or an old one like WWW::Mechanize::Firefox
Maybe the solution could be headless browser like PhantomJS. Not a perl module, but very practical for front-end testing and automation.
How does one parse html documents which make heavy use of javascript? I know there are a few libraries in python which can parse static xml/html files and I'm basically looking for a programme or library (or even firefox plugin) which reads html+javascript, executes the javascript bit and outputs html code without javascript so it would look identical if displayed in a browser.
As a simple example
link
should be replaced by the appropriate value the javascript function returns, e.g.
link
A more complex example would be a saved facebook html page which is littered with loads of javascript code.
Probably related to
How to "execute" HTML+Javascript page with Node.js
but do I really need Node.js and JSDOM? Also slightly related is
Python library for rendering HTML and javascript
but I'm not interested in rendering just the pure html output.
You can use Selenium with python as detailed here
Example:
import xmlrpclib
# Make an object to represent the XML-RPC server.
server_url = "http://localhost:8080/selenium-driver/RPC2"
app = xmlrpclib.ServerProxy(server_url)
# Bump timeout a little higher than the default 5 seconds
app.setTimeout(15)
import os
os.system('start run_firefox.bat')
print app.open('http://localhost:8080/AUT/000000A/http/www.amazon.com/')
print app.verifyTitle('Amazon.com: Welcome')
print app.verifySelected('url', 'All Products')
print app.select('url', 'Books')
print app.verifySelected('url', 'Books')
print app.verifyValue('field-keywords', '')
print app.type('field-keywords', 'Python Cookbook')
print app.clickAndWait('Go')
print app.verifyTitle('Amazon.com: Books Search Results: Python Cookbook')
print app.verifyTextPresent('Python Cookbook', '')
print app.verifyTextPresent('Alex Martellibot, David Ascher', '')
print app.testComplete()
From Mozilla Gecko FAQ:
Q. Can you invoke the Gecko engine from a Unix shell script? Could you send it HTML and get back a web page that might be sent to the printer?
A. Not really supported; you can probably get something close to what you want by writing your own application using Gecko's embedding APIs, though. Note that it's currently not possible to print without a widget on the screen to render to.
Embedding Gecko in a program that outputs what you want may be way too heavy, but at least your output will be as good as it gets.
PhantomJS can be loaded using Selenium
$ ipython
In [1]: from selenium import webdriver
In [2]: browser=webdriver.PhantomJS()
In [3]: browser.get('http://seleniumhq.org/')
In [4]: browser.title
Out[4]: u'Selenium - Web Browser Automation'