Web pages alert, confirm and print functions

[ferpasri]

TESTAR disables by default the functionality of alert(), confirm(), and print() functions in the javascript class that is loaded within the web plugin:

TESTAR_dev/webdriver/resources/web-extension/js/testar.init.start.js

Lines 64 to 67 in 6007a95

	// Disallow browser dialogs
	window.alert = function () {};
	window.confirm = function () {};
	window.print = function () {};

Example in which the alert dialog is disabled: https://demo.guru99.com/test/delete_customer.php

However, if some of these pop-up dialogs run inside an iframe element, TESTAR is not disabling the functionality by default. Still, it forces the focus on the main page of the SUT by using a webdriver.switchTo() method:

TESTAR_dev/webdriver/src/org/testar/monkey/alayer/webdriver/WdDriver.java

Lines 425 to 440 in 6007a95

	public static void activate() {
	updateHandlesList();
	// Nothing to activate, or user doesn't want to use this activate feature
	if (windowHandles.size() < 1 || !forceActivateTab) {
	return;
	}
	String handle = windowHandles.get(followLinks ? windowHandles.size() - 1 : 0);
	try {
	remoteWebDriver.switchTo().window(handle);
	}
	catch (NullPointerException | WebDriverException ignored) {
	remoteWebDriver = null;
	}
	}

Example in which the alert dialog is not disabled because it is part of an iframe: https://www.w3schools.com/js/tryit.asp?filename=tryjs_alert

Possible solution:
It is possible to adapt the TESTAR code to allow the execution of these dialogs and to at least extract the text information before closing it.
https://github.com/TESTARtool/TESTAR_dev/tree/webdriver_alerts

Future:
We need to improve this feature, consider the dialog a new state, and automatically derive a confirmation action.