test/jdk/sanity/client/SwingSet/src/GridBagLayoutDemoTest.java - platform/libcore - Git at Google

 /*
  * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.
  *
  * This code is distributed in the hope that it will be useful, but WITHOUT
  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  * version 2 for more details (a copy is included in the LICENSE file that
  * accompanied this code).
  *
  * You should have received a copy of the GNU General Public License version
  * 2 along with this work; if not, write to the Free Software Foundation,
  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  * or visit www.oracle.com if you need additional information or have any
  * questions.
  */
 import org.jtregext.GuiTestListener;
 import com.sun.swingset3.demos.gridbaglayout.GridBagLayoutDemo;
 import static com.sun.swingset3.demos.gridbaglayout.GridBagLayoutDemo.*;
 import static com.sun.swingset3.demos.gridbaglayout.Calculator.*;
 import java.awt.Component;
 import java.awt.Dimension;
 import java.awt.Point;
 import javax.swing.JButton;
 import javax.swing.UIManager;
 import org.testng.annotations.Test;
 import org.netbeans.jemmy.ClassReference;
 import org.netbeans.jemmy.operators.JFrameOperator;
 import org.netbeans.jemmy.operators.JButtonOperator;
 import org.netbeans.jemmy.operators.JTextFieldOperator;
 import org.testng.annotations.Listeners;
 import static org.jemmy2ext.JemmyExt.EXACT_STRING_COMPARATOR;
 import static org.jemmy2ext.JemmyExt.getUIValue;
 /*
  * @test
  * @key headful
  * @summary Verifies SwingSet3 GridBagLayoutDemo by checking the relative
  *  location of all the components before and after resizing the frame,
  *  interacting with all the controls and checking this interaction on the
  *  text field display.
  *
  * @library /sanity/client/lib/jemmy/src
  * @library /sanity/client/lib/Extensions/src
  * @library /sanity/client/lib/SwingSet3/src
  * @modules java.desktop
  *          java.logging
  * @build com.sun.swingset3.demos.gridbaglayout.GridBagLayoutDemo
  * @run testng/timeout=600 GridBagLayoutDemoTest
  */

 @Listeners(GuiTestListener.class)
 public class GridBagLayoutDemoTest {

     private JTextFieldOperator tfScreen;
     private JButtonOperator buttonZero;
     private JButtonOperator buttonOne;
     private JButtonOperator buttonTwo;
     private JButtonOperator buttonThree;
     private JButtonOperator buttonFour;
     private JButtonOperator buttonFive;
     private JButtonOperator buttonSix;
     private JButtonOperator buttonSeven;
     private JButtonOperator buttonEight;
     private JButtonOperator buttonNine;
     private JButtonOperator buttonPlus;
     private JButtonOperator buttonMinus;
     private JButtonOperator buttonMultiply;
     private JButtonOperator buttonDivide;
     private JButtonOperator buttonComma;
     private JButtonOperator buttonSqrt;
     private JButtonOperator buttonReciprocal;
     private JButtonOperator buttonToggleSign;
     private JButtonOperator buttonEquals;
     private JButtonOperator backspaceButton;
     private JButtonOperator resetButton;
     private JFrameOperator mainFrame;

     @Test(dataProvider = "availableLookAndFeels", dataProviderClass = TestHelpers.class)
     public void test(String lookAndFeel) throws Exception {
         initializeUIComponents(lookAndFeel);
         // Check that the relative location of buttons is as expected.
         checkRelativeLocations();
         // Interact with buttons and check the result on the display.
         checkInteractionOnDisplay();
         // Change the location and check that the relative location of buttons is same as before.
         checkChangeLocation();
         // Change the size and check that the relative location of buttons is same as before.
         checkChangeSize();
     }

     private double x(Component component) {
         return component.getLocation().getX();
     }

     private double y(Component component) {
         return component.getLocation().getY();
     }

     private void checkRight(JButtonOperator currentButton, JButtonOperator rightButton) {
         // Check that x coordinate of right button is greater than that of right
         // end of current button
         currentButton.waitStateOnQueue(button -> x(button) + button.getWidth() < x(rightButton.getSource()));
         // Check that the y coordinate of the button is same as the button to
         // the right
         currentButton.waitStateOnQueue(button -> y(button) == y(rightButton.getSource()));
         // Check that the height of the button is same as the button to the
         // right
         currentButton.waitStateOnQueue(button -> button.getHeight() == rightButton.getHeight());
     }

     private void checkBelow(JButtonOperator currentButton, JButtonOperator buttonBelow) {
         // Check that y coordinate of button below is greater than that of
         // bottom end of current button
         currentButton.waitStateOnQueue(button -> y(button) + button.getHeight() < y(buttonBelow.getSource()));
         // Check that the x coordinate of the button is same as the button below
         currentButton.waitStateOnQueue(button -> x(button) == x(buttonBelow.getSource()));
         // Check that the width of the button is same as the button below
         currentButton.waitStateOnQueue(button -> button.getWidth() == buttonBelow.getWidth());
     }

     private void checkRelativeLocations() {
         // Check relative location of button 7
         checkRight(buttonSeven, buttonEight);
         checkBelow(buttonSeven, buttonFour);

         // Check relative location of button 8
         checkRight(buttonEight, buttonNine);
         checkBelow(buttonEight, buttonFive);

         // Check relative location of button 9
         checkRight(buttonNine, buttonDivide);
         checkBelow(buttonNine, buttonSix);

         // Check relative location of Division button
         checkRight(buttonDivide, buttonReciprocal);
         checkBelow(buttonDivide, buttonMultiply);

         // Check relative location of Reciprocal and Sqrt buttons
         checkBelow(buttonReciprocal, buttonSqrt);

         // Check relative location of button 4
         checkRight(buttonFour, buttonFive);
         checkBelow(buttonFour, buttonOne);

         // Check relative location of button 5
         checkRight(buttonFive, buttonSix);
         checkBelow(buttonFive, buttonTwo);

         // Check relative location of button 6
         checkRight(buttonSix, buttonMultiply);
         checkBelow(buttonSix, buttonThree);

         // Check relative location of Multiply button
         checkRight(buttonMultiply, buttonSqrt);
         checkBelow(buttonMultiply, buttonMinus);

         // Check relative location of button 1
         checkRight(buttonOne, buttonTwo);
         checkBelow(buttonOne, buttonZero);

         // Check relative location of button 2
         checkRight(buttonTwo, buttonThree);
         checkBelow(buttonTwo, buttonToggleSign);

         // Check relative location of button 3
         checkRight(buttonThree, buttonMinus);
         checkBelow(buttonThree, buttonComma);

         // Check relative location of Minus button
         checkBelow(buttonMinus, buttonPlus);

         // Check relative location of button 0
         checkRight(buttonZero, buttonToggleSign);

         // Check relative location of Sign Toggle Button
         checkRight(buttonToggleSign, buttonComma);

         // Check relative location of Comma button
         checkRight(buttonComma, buttonPlus);

         // Check relative location of plus and Equals buttons
         checkRight(buttonPlus, buttonEquals);

         // Check relative location of JPanel containing Backspace and Reset
         // buttons
         Point parentLocation = getUIValue(backspaceButton, (JButton button) -> button.getParent().getLocation());
         // Check that the y coordinate of bottom of the screen is
         // less than that of parent of backspace button
         tfScreen.waitStateOnQueue(screen -> y(screen) + screen.getHeight() < parentLocation.getY());
         // Check that the y coordinate of the button 7 is greater
         // than that of parent of backspace
         buttonSeven.waitStateOnQueue(button -> parentLocation.getY() < y(button));
         // Check that the y coordinate of reciprocal button is greater
         // than that of parent of backspace
         buttonReciprocal.waitStateOnQueue(button -> parentLocation.getY() < y(button));
         // Check that x coordinate of screen is same as that of parent of
         // backspace
         tfScreen.waitStateOnQueue(screen -> x(screen) == parentLocation.getX());
         // Check that x coordinate of button 7 is same as that of parent of
         // backspace
         buttonSeven.waitStateOnQueue(button -> x(button) == parentLocation.getX());

         // Check relative location of Backspace button
         // Check that the x coordinate of right of backspace button
         // is less than that of reset button
         backspaceButton.waitStateOnQueue(button -> x(button) + button.getWidth() < x(resetButton.getSource()));
         // Check that the height of backspace button is same as that of reset
         // button
         backspaceButton.waitStateOnQueue(button -> button.getHeight() == resetButton.getHeight());
         // Check that the y coordinate bottom of backspace button is less that
         // that of button 7
         backspaceButton.waitStateOnQueue(
                 button -> parentLocation.getY() + button.getParent().getHeight() < y(buttonSeven.getSource()));

         // Check that the x coordinate of reset button is greater than that
         // of right of backspace button
         resetButton.waitStateOnQueue(button -> x(backspaceButton.getSource()) + backspaceButton.getWidth() < x(button));

         // Check that the height of reset button is same as that of backspace
         // button
         resetButton.waitStateOnQueue(button -> backspaceButton.getHeight() == button.getHeight());

         // Check that the y coordinate of bottom of reset button is less
         // than that of divide button.
         resetButton.waitStateOnQueue(
                 button -> parentLocation.getY() + button.getParent().getHeight() < y(buttonDivide.getSource()));

         // Check that the y coordinate of top of screen is lower
         // than that of parent of backspace button
         tfScreen.waitStateOnQueue(screen -> y(screen) + screen.getHeight() < parentLocation.getY());
     }

     private void checkInteractionOnDisplay() {
         // Check buttons: 1,2,+,=,C
         buttonOne.push();
         tfScreen.waitText("1");
         buttonPlus.push();
         tfScreen.waitText("1");
         buttonTwo.push();
         tfScreen.waitText("2");
         buttonEquals.push();
         tfScreen.waitText("3");
         resetButton.push();
         tfScreen.waitText("0");

         // Check buttons: 3,4,-
         buttonFour.push();
         tfScreen.waitText("4");
         buttonMinus.push();
         tfScreen.waitText("4");
         buttonThree.push();
         tfScreen.waitText("3");
         buttonEquals.push();
         tfScreen.waitText("1");
         reset();

         // Check buttons: 5,6,*
         buttonFive.push();
         tfScreen.waitText("5");
         buttonMultiply.push();
         tfScreen.waitText("5");
         buttonSix.push();
         tfScreen.waitText("6");
         buttonEquals.push();
         tfScreen.waitText("30");
         reset();

         // Check buttons: 8,9,/
         buttonNine.push();
         buttonNine.push();
         tfScreen.waitText("99");
         buttonDivide.push();
         tfScreen.waitText("99");
         buttonEight.push();
         tfScreen.waitText("8");
         buttonEquals.push();
         tfScreen.waitText("12.375");
         reset();

         // Check buttons: 7,0,[+/-],Backspace
         buttonSeven.push();
         tfScreen.waitText("7");
         buttonZero.push();
         tfScreen.waitText("70");
         buttonToggleSign.push();
         tfScreen.waitText("-70");
         buttonToggleSign.push();
         tfScreen.waitText("70");
         backspaceButton.push();
         tfScreen.waitText("7");
         reset();

         // Check Sqrt Button
         buttonFour.push();
         buttonNine.push();
         tfScreen.waitText("49");
         buttonSqrt.push();
         tfScreen.waitText("7");
         reset();

         // Check Reciprocal Button
         buttonFour.push();
         tfScreen.waitText("4");
         buttonReciprocal.push();
         tfScreen.waitText("0.25");
         reset();

         // Check Comma button
         buttonFour.push();
         buttonComma.push();
         tfScreen.waitText("4,");
     }

     private void reset() {
         resetButton.push();
         tfScreen.waitText("0");
     }

     private void initializeUIComponents(String lookAndFeel) throws Exception {
         UIManager.setLookAndFeel(lookAndFeel);
         new ClassReference(GridBagLayoutDemo.class.getCanonicalName()).startApplication();
         mainFrame = new JFrameOperator(GRID_BAG_LAYOUT_DEMO_TITLE);
         mainFrame.setComparator(EXACT_STRING_COMPARATOR);
         buttonZero = new JButtonOperator(mainFrame, ZERO_BUTTON_TITLE);
         buttonOne = new JButtonOperator(mainFrame, ONE_BUTTON_TITLE);
         buttonTwo = new JButtonOperator(mainFrame, TWO_BUTTON_TITLE);
         buttonThree = new JButtonOperator(mainFrame, THREE_BUTTON_TITLE);
         buttonFour = new JButtonOperator(mainFrame, FOUR_BUTTON_TITLE);
         buttonFive = new JButtonOperator(mainFrame, FIVE_BUTTON_TITLE);
         buttonSix = new JButtonOperator(mainFrame, SIX_BUTTON_TITLE);
         buttonSeven = new JButtonOperator(mainFrame, SEVEN_BUTTON_TITLE);
         buttonEight = new JButtonOperator(mainFrame, EIGHT_BUTTON_TITLE);
         buttonNine = new JButtonOperator(mainFrame, NINE_BUTTON_TITLE);
         buttonPlus = new JButtonOperator(mainFrame, PLUS_BUTTON_TITLE);
         buttonMinus = new JButtonOperator(mainFrame, MINUS_BUTTON_TITLE);
         buttonMultiply = new JButtonOperator(mainFrame, MULTIPLY_BUTTON_TITLE);
         buttonDivide = new JButtonOperator(mainFrame, DIVIDE_BUTTON_TITLE);
         buttonComma = new JButtonOperator(mainFrame, ",");
         buttonSqrt = new JButtonOperator(mainFrame, SQRT_BUTTON_TITLE);
         buttonReciprocal = new JButtonOperator(mainFrame, INVERSE_BUTTON_TITLE);
         buttonToggleSign = new JButtonOperator(mainFrame, SWAPSIGN_BUTTON_TITLE);
         buttonEquals = new JButtonOperator(mainFrame, EQUALS_BUTTON_TITLE);
         resetButton = new JButtonOperator(mainFrame, C_BUTTON_TITLE);
         backspaceButton = new JButtonOperator(mainFrame, BACKSPACE_BUTTON_TITLE);
         tfScreen = new JTextFieldOperator(mainFrame, 0);
     }

     private void checkChangeLocation() {
         Point startingPoint = new Point(100, 100);
         mainFrame.setLocation(startingPoint);
         mainFrame.waitComponentLocation(startingPoint);
         checkRelativeLocations();
     }

     private void checkChangeSize() {
         Dimension newSize = new Dimension((int) mainFrame.getToolkit().getScreenSize().getWidth() / 2,
                 (int) mainFrame.getToolkit().getScreenSize().getHeight() / 2);
         mainFrame.setSize(newSize);
         mainFrame.waitComponentSize(newSize);
         checkRelativeLocations();
     }
 }
	/*
	* Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
	*
	* This code is free software; you can redistribute it and/or modify it
	* under the terms of the GNU General Public License version 2 only, as
	* published by the Free Software Foundation.
	*
	* This code is distributed in the hope that it will be useful, but WITHOUT
	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
	* version 2 for more details (a copy is included in the LICENSE file that
	* accompanied this code).
	*
	* You should have received a copy of the GNU General Public License version
	* 2 along with this work; if not, write to the Free Software Foundation,
	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
	*
	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
	* or visit www.oracle.com if you need additional information or have any
	* questions.
	*/
	import org.jtregext.GuiTestListener;
	import com.sun.swingset3.demos.gridbaglayout.GridBagLayoutDemo;
	import static com.sun.swingset3.demos.gridbaglayout.GridBagLayoutDemo.*;
	import static com.sun.swingset3.demos.gridbaglayout.Calculator.*;
	import java.awt.Component;
	import java.awt.Dimension;
	import java.awt.Point;
	import javax.swing.JButton;
	import javax.swing.UIManager;
	import org.testng.annotations.Test;
	import org.netbeans.jemmy.ClassReference;
	import org.netbeans.jemmy.operators.JFrameOperator;
	import org.netbeans.jemmy.operators.JButtonOperator;
	import org.netbeans.jemmy.operators.JTextFieldOperator;
	import org.testng.annotations.Listeners;
	import static org.jemmy2ext.JemmyExt.EXACT_STRING_COMPARATOR;
	import static org.jemmy2ext.JemmyExt.getUIValue;
	/*
	* @test
	* @key headful
	* @summary Verifies SwingSet3 GridBagLayoutDemo by checking the relative
	* location of all the components before and after resizing the frame,
	* interacting with all the controls and checking this interaction on the
	* text field display.
	*
	* @library /sanity/client/lib/jemmy/src
	* @library /sanity/client/lib/Extensions/src
	* @library /sanity/client/lib/SwingSet3/src
	* @modules java.desktop
	* java.logging
	* @build com.sun.swingset3.demos.gridbaglayout.GridBagLayoutDemo
	* @run testng/timeout=600 GridBagLayoutDemoTest
	*/

	@Listeners(GuiTestListener.class)
	public class GridBagLayoutDemoTest {

	private JTextFieldOperator tfScreen;
	private JButtonOperator buttonZero;
	private JButtonOperator buttonOne;
	private JButtonOperator buttonTwo;
	private JButtonOperator buttonThree;
	private JButtonOperator buttonFour;
	private JButtonOperator buttonFive;
	private JButtonOperator buttonSix;
	private JButtonOperator buttonSeven;
	private JButtonOperator buttonEight;
	private JButtonOperator buttonNine;
	private JButtonOperator buttonPlus;
	private JButtonOperator buttonMinus;
	private JButtonOperator buttonMultiply;
	private JButtonOperator buttonDivide;
	private JButtonOperator buttonComma;
	private JButtonOperator buttonSqrt;
	private JButtonOperator buttonReciprocal;
	private JButtonOperator buttonToggleSign;
	private JButtonOperator buttonEquals;
	private JButtonOperator backspaceButton;
	private JButtonOperator resetButton;
	private JFrameOperator mainFrame;

	@Test(dataProvider = "availableLookAndFeels", dataProviderClass = TestHelpers.class)
	public void test(String lookAndFeel) throws Exception {
	initializeUIComponents(lookAndFeel);
	// Check that the relative location of buttons is as expected.
	checkRelativeLocations();
	// Interact with buttons and check the result on the display.
	checkInteractionOnDisplay();
	// Change the location and check that the relative location of buttons is same as before.
	checkChangeLocation();
	// Change the size and check that the relative location of buttons is same as before.
	checkChangeSize();
	}

	private double x(Component component) {
	return component.getLocation().getX();
	}

	private double y(Component component) {
	return component.getLocation().getY();
	}

	private void checkRight(JButtonOperator currentButton, JButtonOperator rightButton) {
	// Check that x coordinate of right button is greater than that of right
	// end of current button
	currentButton.waitStateOnQueue(button -> x(button) + button.getWidth() < x(rightButton.getSource()));
	// Check that the y coordinate of the button is same as the button to
	// the right
	currentButton.waitStateOnQueue(button -> y(button) == y(rightButton.getSource()));
	// Check that the height of the button is same as the button to the
	// right
	currentButton.waitStateOnQueue(button -> button.getHeight() == rightButton.getHeight());
	}

	private void checkBelow(JButtonOperator currentButton, JButtonOperator buttonBelow) {
	// Check that y coordinate of button below is greater than that of
	// bottom end of current button
	currentButton.waitStateOnQueue(button -> y(button) + button.getHeight() < y(buttonBelow.getSource()));
	// Check that the x coordinate of the button is same as the button below
	currentButton.waitStateOnQueue(button -> x(button) == x(buttonBelow.getSource()));
	// Check that the width of the button is same as the button below
	currentButton.waitStateOnQueue(button -> button.getWidth() == buttonBelow.getWidth());
	}

	private void checkRelativeLocations() {
	// Check relative location of button 7
	checkRight(buttonSeven, buttonEight);
	checkBelow(buttonSeven, buttonFour);

	// Check relative location of button 8
	checkRight(buttonEight, buttonNine);
	checkBelow(buttonEight, buttonFive);

	// Check relative location of button 9
	checkRight(buttonNine, buttonDivide);
	checkBelow(buttonNine, buttonSix);

	// Check relative location of Division button
	checkRight(buttonDivide, buttonReciprocal);
	checkBelow(buttonDivide, buttonMultiply);

	// Check relative location of Reciprocal and Sqrt buttons
	checkBelow(buttonReciprocal, buttonSqrt);

	// Check relative location of button 4
	checkRight(buttonFour, buttonFive);
	checkBelow(buttonFour, buttonOne);

	// Check relative location of button 5
	checkRight(buttonFive, buttonSix);
	checkBelow(buttonFive, buttonTwo);

	// Check relative location of button 6
	checkRight(buttonSix, buttonMultiply);
	checkBelow(buttonSix, buttonThree);

	// Check relative location of Multiply button
	checkRight(buttonMultiply, buttonSqrt);
	checkBelow(buttonMultiply, buttonMinus);

	// Check relative location of button 1
	checkRight(buttonOne, buttonTwo);
	checkBelow(buttonOne, buttonZero);

	// Check relative location of button 2
	checkRight(buttonTwo, buttonThree);
	checkBelow(buttonTwo, buttonToggleSign);

	// Check relative location of button 3
	checkRight(buttonThree, buttonMinus);
	checkBelow(buttonThree, buttonComma);

	// Check relative location of Minus button
	checkBelow(buttonMinus, buttonPlus);

	// Check relative location of button 0
	checkRight(buttonZero, buttonToggleSign);

	// Check relative location of Sign Toggle Button
	checkRight(buttonToggleSign, buttonComma);

	// Check relative location of Comma button
	checkRight(buttonComma, buttonPlus);

	// Check relative location of plus and Equals buttons
	checkRight(buttonPlus, buttonEquals);

	// Check relative location of JPanel containing Backspace and Reset
	// buttons
	Point parentLocation = getUIValue(backspaceButton, (JButton button) -> button.getParent().getLocation());
	// Check that the y coordinate of bottom of the screen is
	// less than that of parent of backspace button
	tfScreen.waitStateOnQueue(screen -> y(screen) + screen.getHeight() < parentLocation.getY());
	// Check that the y coordinate of the button 7 is greater
	// than that of parent of backspace
	buttonSeven.waitStateOnQueue(button -> parentLocation.getY() < y(button));
	// Check that the y coordinate of reciprocal button is greater
	// than that of parent of backspace
	buttonReciprocal.waitStateOnQueue(button -> parentLocation.getY() < y(button));
	// Check that x coordinate of screen is same as that of parent of
	// backspace
	tfScreen.waitStateOnQueue(screen -> x(screen) == parentLocation.getX());
	// Check that x coordinate of button 7 is same as that of parent of
	// backspace
	buttonSeven.waitStateOnQueue(button -> x(button) == parentLocation.getX());

	// Check relative location of Backspace button
	// Check that the x coordinate of right of backspace button
	// is less than that of reset button
	backspaceButton.waitStateOnQueue(button -> x(button) + button.getWidth() < x(resetButton.getSource()));
	// Check that the height of backspace button is same as that of reset
	// button
	backspaceButton.waitStateOnQueue(button -> button.getHeight() == resetButton.getHeight());
	// Check that the y coordinate bottom of backspace button is less that
	// that of button 7
	backspaceButton.waitStateOnQueue(
	button -> parentLocation.getY() + button.getParent().getHeight() < y(buttonSeven.getSource()));

	// Check that the x coordinate of reset button is greater than that
	// of right of backspace button
	resetButton.waitStateOnQueue(button -> x(backspaceButton.getSource()) + backspaceButton.getWidth() < x(button));

	// Check that the height of reset button is same as that of backspace
	// button
	resetButton.waitStateOnQueue(button -> backspaceButton.getHeight() == button.getHeight());

	// Check that the y coordinate of bottom of reset button is less
	// than that of divide button.
	resetButton.waitStateOnQueue(
	button -> parentLocation.getY() + button.getParent().getHeight() < y(buttonDivide.getSource()));

	// Check that the y coordinate of top of screen is lower
	// than that of parent of backspace button
	tfScreen.waitStateOnQueue(screen -> y(screen) + screen.getHeight() < parentLocation.getY());
	}

	private void checkInteractionOnDisplay() {
	// Check buttons: 1,2,+,=,C
	buttonOne.push();
	tfScreen.waitText("1");
	buttonPlus.push();
	tfScreen.waitText("1");
	buttonTwo.push();
	tfScreen.waitText("2");
	buttonEquals.push();
	tfScreen.waitText("3");
	resetButton.push();
	tfScreen.waitText("0");

	// Check buttons: 3,4,-
	buttonFour.push();
	tfScreen.waitText("4");
	buttonMinus.push();
	tfScreen.waitText("4");
	buttonThree.push();
	tfScreen.waitText("3");
	buttonEquals.push();
	tfScreen.waitText("1");
	reset();

	// Check buttons: 5,6,*
	buttonFive.push();
	tfScreen.waitText("5");
	buttonMultiply.push();
	tfScreen.waitText("5");
	buttonSix.push();
	tfScreen.waitText("6");
	buttonEquals.push();
	tfScreen.waitText("30");
	reset();

	// Check buttons: 8,9,/
	buttonNine.push();
	buttonNine.push();
	tfScreen.waitText("99");
	buttonDivide.push();
	tfScreen.waitText("99");
	buttonEight.push();
	tfScreen.waitText("8");
	buttonEquals.push();
	tfScreen.waitText("12.375");
	reset();

	// Check buttons: 7,0,[+/-],Backspace
	buttonSeven.push();
	tfScreen.waitText("7");
	buttonZero.push();
	tfScreen.waitText("70");
	buttonToggleSign.push();
	tfScreen.waitText("-70");
	buttonToggleSign.push();
	tfScreen.waitText("70");
	backspaceButton.push();
	tfScreen.waitText("7");
	reset();

	// Check Sqrt Button
	buttonFour.push();
	buttonNine.push();
	tfScreen.waitText("49");
	buttonSqrt.push();
	tfScreen.waitText("7");
	reset();

	// Check Reciprocal Button
	buttonFour.push();
	tfScreen.waitText("4");
	buttonReciprocal.push();
	tfScreen.waitText("0.25");
	reset();

	// Check Comma button
	buttonFour.push();
	buttonComma.push();
	tfScreen.waitText("4,");
	}

	private void reset() {
	resetButton.push();
	tfScreen.waitText("0");
	}

	private void initializeUIComponents(String lookAndFeel) throws Exception {
	UIManager.setLookAndFeel(lookAndFeel);
	new ClassReference(GridBagLayoutDemo.class.getCanonicalName()).startApplication();
	mainFrame = new JFrameOperator(GRID_BAG_LAYOUT_DEMO_TITLE);
	mainFrame.setComparator(EXACT_STRING_COMPARATOR);
	buttonZero = new JButtonOperator(mainFrame, ZERO_BUTTON_TITLE);
	buttonOne = new JButtonOperator(mainFrame, ONE_BUTTON_TITLE);
	buttonTwo = new JButtonOperator(mainFrame, TWO_BUTTON_TITLE);
	buttonThree = new JButtonOperator(mainFrame, THREE_BUTTON_TITLE);
	buttonFour = new JButtonOperator(mainFrame, FOUR_BUTTON_TITLE);
	buttonFive = new JButtonOperator(mainFrame, FIVE_BUTTON_TITLE);
	buttonSix = new JButtonOperator(mainFrame, SIX_BUTTON_TITLE);
	buttonSeven = new JButtonOperator(mainFrame, SEVEN_BUTTON_TITLE);
	buttonEight = new JButtonOperator(mainFrame, EIGHT_BUTTON_TITLE);
	buttonNine = new JButtonOperator(mainFrame, NINE_BUTTON_TITLE);
	buttonPlus = new JButtonOperator(mainFrame, PLUS_BUTTON_TITLE);
	buttonMinus = new JButtonOperator(mainFrame, MINUS_BUTTON_TITLE);
	buttonMultiply = new JButtonOperator(mainFrame, MULTIPLY_BUTTON_TITLE);
	buttonDivide = new JButtonOperator(mainFrame, DIVIDE_BUTTON_TITLE);
	buttonComma = new JButtonOperator(mainFrame, ",");
	buttonSqrt = new JButtonOperator(mainFrame, SQRT_BUTTON_TITLE);
	buttonReciprocal = new JButtonOperator(mainFrame, INVERSE_BUTTON_TITLE);
	buttonToggleSign = new JButtonOperator(mainFrame, SWAPSIGN_BUTTON_TITLE);
	buttonEquals = new JButtonOperator(mainFrame, EQUALS_BUTTON_TITLE);
	resetButton = new JButtonOperator(mainFrame, C_BUTTON_TITLE);
	backspaceButton = new JButtonOperator(mainFrame, BACKSPACE_BUTTON_TITLE);
	tfScreen = new JTextFieldOperator(mainFrame, 0);
	}

	private void checkChangeLocation() {
	Point startingPoint = new Point(100, 100);
	mainFrame.setLocation(startingPoint);
	mainFrame.waitComponentLocation(startingPoint);
	checkRelativeLocations();
	}

	private void checkChangeSize() {
	Dimension newSize = new Dimension((int) mainFrame.getToolkit().getScreenSize().getWidth() / 2,
	(int) mainFrame.getToolkit().getScreenSize().getHeight() / 2);
	mainFrame.setSize(newSize);
	mainFrame.waitComponentSize(newSize);
	checkRelativeLocations();
	}
	}