TestClosure --- executing Groovy Closures in multi-Threads in a Test Case simultaneously

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I have published a new versin 0.21.0 of TestClosure.

In v0.20.0, a typical TestClosure was constructed as this:

import com.kazurayam.ks.testclosure.TestClosure
import org.openqa.selenium.Dimension
import org.openqa.selenium.Point
import com.kazurayam.ks.windowlayout.BrowserWindowLayoutKeyword as BrowserWindow

new TestClosure({ Point position, Dimension dimension ->
	String url = 'http://forum.katalon.com/'
	WebUI.openBrowser('')
	//
	BrowserWindow.layout(position, dimension)
	//
	WebUI.navigateToUrl(url)
	WebUI.comment("processing ${url}")
	TestObject tObj = newTestObjectXPath("//a[contains(text(),'How To Help Us Help You')]")
	WebUI.verifyElementPresent(tObj, 5)
	WebUI.scrollToElement(tObj, 5)
	WebUI.delay(1)
	WebUI.closeBrowser()
	}, [])

As you can see, this TestClosure is responsible for opening/closing browser and for positioning the browser window. The code is lengthy, therefore is error prone.

Now in v0.21.0, a typical TestClosure is constructed as this:

import com.kazurayam.ks.testclosure.TestClosure
import org.openqa.selenium.WebDriver
import com.kms.katalon.core.webui.driver.DriverFactory

TestClosure tc = new TestClosure({ WebDriver driver ->
    DriverFactory.changeWebDriver(driver)
	String url = 'http://forum.katalon.com/'
	WebUI.navigateToUrl(url)
	WebUI.comment("processing ${url}")
	TestObject tObj = newTestObjectXPath("//a[contains(text(),'How To Help Us Help You')]")
	WebUI.verifyElementPresent(tObj, 5)
	WebUI.scrollToElement(tObj, 5)
	}, [])

Now the framework com.kazurayam.ks.testclosure.TestClosureCollectionExecutor is entirely responsible for opening/closing browser, positioning browser window. An instance of WebDriver is passed to a TestClosure as argument. A TestClosure just uses the given WebDriver instance. So the code of a TestClosure in v0.21.0 is much simpler than v0.20.0.

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