3/18/2023 0 Comments Neoload decode gwt .js requestsWriteFile(cpt ” was the value from my test”) Var cpt = (“StringNameFooBar”) Ĭontext.fail(“Variable ‘StringRandom’ not found”) And then insert this JavaScript to use the function: //Script to get variable from running test Note: “” will display the instance of the VU it’s also optional. It’s optional and can be replaced with any variable needed. ![]() Pre-requisite: “CurrentDate” is a NeoLoad variable (see Variable manager, create it) that will display the current date. If you use all the code inside a NeoLoad JavaScript, you can leave it as is. Note: if you use it inside the JavaScript library, copy all the code inside the function otherwise, the compilation won’t work. Var writer = new java.io.FileWriter(“c:\log.txt”,true) Var date = (“CurrentDate”) Ĭontext.fail(“Variable ‘CurrentDate’ not found”) Script to write variable to external file Create this JavaScript in the NeoLoad JavaScript libraries folder: The data will be stored in a file of your choice. You can use a specific JavaScript with a defined variable.bin files directly from NeoLoad (only for responses, see below). (myMessage) Note: The logging level can be configured in the project settings in the Runtime parameters section. The data will be stored in the load generator log files. You can use the NeoLoad logger JavaScript class to log your information.There are a few ways to log data during your tests: This is useful if you want to check data afterward, whether it was used or modified during your load test. The post was originally published in 2018 and was most recently updated in July 2021.During your load test, you may want to log information related to your script. Together, NeoLoad and JSON make a great team, working to handle your application’s data, saving it dynamically during load testing. It has features to detect and parse JSON structures, extracting values from them for later use to maintain a dynamic design approach with new data for each iteration. NeoLoad, as a load testing tool, has powerful functions to help use and manipulate JSON content. Note you can also add a regular expression to this extraction to further parse the data before using it in a variable in a later request. By default, it will select the referenced object for the “name” node (“Leanne Graham” in the example):Īnd, by further manipulating the data, we can extract ALL of the name values by changing the $.name expression to $.name to get an array of values, as the wildcard extracts all of the matching values:Īt this point, all of the names are extracted and in a variety of values. If we wanted to extract the names of the users in this list, we could act by selecting via “name” node. NeoLoad allows the parsing of the XML format to a tree view, allowing for specific data selection. This allows powerful command over extracting specific nodes or values. When creating the extraction by using the picker, we are presented with the nodes within the JSON content. Let’s take a look at how NeoLoad views this same response when using the new JSONPath extractor: NeoLoad goes even further when performing correlation, particularly, when handling JSON content. “catchPhrase”: “Multi-layered client-server neural-net”, Here is an example from a sample website that uses JSON structure to provide user info:Īs you can see, it is difficult to read, so NeoLoad detects it as JSON, presenting a way for the user to see the data in a simplistic format, for instance: This makes extractions and correlation much easier. It can parse JSON data structures and view content with XML parsers. NeoLoad has powerful built-in features to detect JSON content and is customizable to work with other content types needing to be identified as JSON. Commonly, JSON requests end with a “.json” extension and have the standard content yype: application/json. It makes it easy for the application to parse and add new data. This block of data might be referred to as an object, with an array of strings and values. This format makes it easy to interchange data for other segments of info. Take the example below for data of a user: Its structure allows it to be easily modified for an application, as well as for a load testing tool. ![]() JSON makes it easy to handle data for web applications. Since it is so widely used and accepted for data handling, it is only natural to have a load testing tool that can easily support and collaborate with JSON. The form and structure of JSON are meant to replace XML and AJAX systems. It uses objects and arrays, with strings and values, to structure data in the file format. It has familiarities to programming languages, but with an easier-to-read format. JSON, or JavaScript Object Notation, is a lightweight, text-readable format used in many web applications.
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