Software engineering - TestFX example

DrawRectangleTest.scala

package de.thm.move

import java.awt.{MouseInfo, Robot}

import javafx.scene.input.{KeyCode, MouseButton}
import org.junit.Test
import org.junit.Assert._

class DrawRectangleTest extends GuiTest {

  /**
    * Creates a new file, and draws a rectangle
    */
  @Test def drawRectangle(): Unit = {
    clickOn("File")
    clickOn("New file")
    clickOn("OK")

    clickOn("#rectangle_btn")
    moveBy(200, 0)
    press(MouseButton.PRIMARY).moveBy(200, 200).release(MouseButton.PRIMARY)

    moveBy(-100, -100)
    val loc = MouseInfo.getPointerInfo.getLocation
    val pixelColor = new Robot().getPixelColor(loc.x, loc.y)
    assertEquals(pixelColor.getRed, 251)
    assertEquals(pixelColor.getGreen, 0)
    assertEquals(pixelColor.getBlue, 7)
  }
}

GuiTest.scala

package de.thm.move

import de.thm.move.controllers.MoveCtrl
import javafx.event.EventHandler
import javafx.fxml.FXMLLoader
import javafx.scene.{Parent, Scene}
import javafx.stage.{Stage, WindowEvent}
import org.testfx.framework.junit.ApplicationTest

/**
  * Base class for writing TestFX tests
  */
abstract class GuiTest extends ApplicationTest {

  override def start(stage: Stage): Unit = {
    val windowWidth = Global.config.getDouble("window.width").getOrElse(600.0)
    val windowHeight = Global.config.getDouble("window.height").getOrElse(600.0)

    val fxmlLoader = new FXMLLoader(MoveApp.getClass.getResource("/fxml/move.fxml"))
    fxmlLoader.setResources(Global.fontBundle)
    val mainViewRoot: Parent = fxmlLoader.load()
    val scene = new Scene(mainViewRoot)
    scene.getStylesheets.add(Global.styleSheetUrl)

    stage.setTitle(Global.config.getString("window.title").getOrElse(""))
    stage.setScene(scene)
    stage.setWidth(windowWidth)
    stage.setHeight(windowHeight)
    stage.show()
    val ctrl = fxmlLoader.getController[MoveCtrl]
    ctrl.setupMove(stage, None)

    stage.setOnCloseRequest(new EventHandler[WindowEvent] {
      override def handle(event: WindowEvent): Unit = {
        ctrl.shutdownMove()
      }
    })
  }
}