@@ -0,0 +1,1232 @@
+package seedu.address.ui;%0A%0Aimport static org.junit.Assert.assertEquals;%0A%0Aimport org.junit.After;%0Aimport org.junit.Before;%0Aimport org.junit.BeforeClass;%0Aimport org.junit.Test;%0Aimport org.junit.experimental.categories.Category;%0Aimport org.testfx.api.FxRobot;%0Aimport org.testfx.api.FxToolkit;%0A%0Aimport javafx.scene.web.WebView;%0Aimport seedu.address.testutil.GuiTests;%0A%0A@Category(%7BGuiTests.class%7D)%0Apublic class HelpWindowTest extends FxRobot %7B%0A%0A    private HelpWindow helpWindow;%0A%0A    private WebView webView;%0A%0A    @BeforeClass%0A    public static void setupFxToolkit() throws Exception %7B%0A        FxToolkit.registerPrimaryStage();%0A    %7D%0A%0A    @Before%0A    public void setupHelpWindow() throws Exception %7B%0A        FxToolkit.registerStage(() -%3E %7B%0A            helpWindow = new HelpWindow();%0A            return helpWindow.getRoot();%0A        %7D);%0A        FxToolkit.showStage();%0A        webView = lookup(%22#webView%22).query();%0A    %7D%0A%0A    @After%0A    public void teardownHelpWindow() throws Exception %7B%0A        FxToolkit.cleanupStages();%0A    %7D%0A%0A    @Test%0A    public void constructor() %7B%0A        assertEquals(%22https://github.com/se-edu/addressbook-level4/blob/master/docs/UserGuide.md%22,%0A                     webView.getEngine().getLocation());%0A    %7D%0A%0A%7D%0A

add HelpWindowTest