#Webscraper test how to
#Webscraper test series

WebScraper is built using Maven, so to execute the unit tests from the command line you must have Maven installed. However, with just a little more up-front effort, we can replace this checklist with a series of unit tests, and replace human eyes with a web scraper. Maven - For building and unit test execution.Īfter downloading project, navigate to root directory of project (e.g.

He then separates each of the tests with a commented outline. He starts with testing that the file exists in the right location. I like using a format similar to follow Ken Youens' format in 'Tiny Python Project' (link below).

I fear I am missing something obvious! Requirements With Test-Driven Development, you write your test before writing your program code. In light of this I would appreciate any feedback as to why a browser based solution works in terms of getting the underlying source of the web URL but a browserless one does not. Eventually I resorted to the FirefoxDriver which I feel this is a sub-optimal solution due to its enforced dependency on Mozilla Firefox Browser being installed. At first I tried to use the HtmlUnitDriver in order to provide a browserless connection, but again I could not get the desired result. After googling for a solution I have ended up using Selenium. I then looked at HtmlUnit to try and fake a browser connection, and even with the JavaScript option enabled I could not get a clean copy of the underlying DOM Document with all of the required data. WebScraper is built using Maven, so to execute the unit tests from the command line you must have Maven installed. After downloading project, navigate to root directory of project (e.g. When originally tackling this task my initial inclination was to use JSoup, but this approach does not work as JSoup is a HTML parser and cannot handle the JavaScript on the provided web URL. Maven - For building and unit test execution. junit - Framework used to create and run tests.Thanks to this structure, data mining from modern and dynamic websites such as Amazon, Tripadvisor, eBay, as well as from lesser-known sites is effortless.

#Webscraper test how to

gson - Used to generate JSON formatted output. Web Scraper utilizes a modular structure that is made of selectors, which instruct the scraper on how to traverse the target site and what data to extract.

jsoup - Used for parsing and extracting information from DOM Document.

selenium-java - Selenium WebDriver, specifically the FirefoxDriver.

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WebScraper is a Java Console application that scrapes specific informationįrom a pre-defined URL on the Sainsbury's website.