I would like to run my Selenium WebDriver tests on Opera, but when I had a look at the Opera driver at Selenium HQ and GitHub page, it says:
Opera Driver
Opera has just released an early beta of WebDriver for their Blink based browsers. See https://github.com/operasoftware/operachromiumdriver
To quote from the link provided:
OperaChromiumDriver can be used without extra setup on Chromium-based versions of Opera starting from version 26. For driving Presto-based Opera browsers, refer to the OperaPrestoDriver project.
Although versions earlier than 26 aren't officially supported, the OperaChromiumDriver v. 0.1.0 works with Opera 25. On Windows using the 'binary' option in 'operaOptions' may be needed.
Download OperaDriver from here and write the following code for java:
System.setProperty("webdriver.opera.driver", "D:/Ripon/operadriver_win64/operadriver.exe");
WebDriver driver = new OperaDriver();
driver.get("https://duckduckgo.com/");
1 & 2)
There are 2 types of Opera - Java Based and Chrominium based.
The provided links are for Java based Opera.
https://github.com/operasoftware/operadriver#desktop
There is no official support for latest Opera versions.