| /******************************************************************************* |
| * Copyright (c) 2000, 2019 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| * Jeanderson Candido <http://jeandersonbc.github.io> - Bug 444070 |
| * Lars Vogel <Lars.Vogel@vogella.com> - Bug 474957 |
| * Paul Pazderski <paul-eclipse@ppazderski.de> - Bug 546537: improve compatibility with BlockJUnit4ClassRunner |
| *******************************************************************************/ |
| package org.eclipse.ui.tests.harness.util; |
| |
| import java.io.IOException; |
| import java.io.OutputStream; |
| import java.io.PrintStream; |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.concurrent.atomic.AtomicBoolean; |
| |
| import org.eclipse.core.resources.ResourcesPlugin; |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.IAdaptable; |
| import org.eclipse.core.runtime.IStatus; |
| import org.eclipse.core.runtime.jobs.Job; |
| import org.eclipse.swt.events.ShellEvent; |
| import org.eclipse.swt.events.ShellListener; |
| import org.eclipse.swt.widgets.Display; |
| import org.eclipse.swt.widgets.Shell; |
| import org.eclipse.ui.IWindowListener; |
| import org.eclipse.ui.IWorkbench; |
| import org.eclipse.ui.IWorkbenchPage; |
| import org.eclipse.ui.IWorkbenchWindow; |
| import org.eclipse.ui.PlatformUI; |
| import org.eclipse.ui.WorkbenchException; |
| import org.junit.After; |
| import org.junit.Before; |
| import org.junit.Rule; |
| import org.junit.rules.TestWatcher; |
| import org.junit.runner.Description; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.BlockJUnit4ClassRunner; |
| |
| import junit.framework.TestCase; |
| |
| /** |
| * <code>UITestCase</code> is a useful super class for most |
| * UI tests cases. It contains methods to create new windows |
| * and pages. It will also automatically close the test |
| * windows when the tearDown method is called. |
| */ |
| public abstract class UITestCase extends TestCase { |
| |
| /** |
| * Returns the workbench page input to use for newly created windows. |
| * |
| * @return the page input to use for newly created windows |
| * @since 3.1 |
| */ |
| public static IAdaptable getPageInput() { |
| return ResourcesPlugin.getWorkspace().getRoot(); |
| } |
| |
| class TestWindowListener implements IWindowListener { |
| private boolean enabled = true; |
| |
| public void setEnabled(boolean enabled) { |
| this.enabled = enabled; |
| } |
| |
| @Override |
| public void windowActivated(IWorkbenchWindow window) { |
| // do nothing |
| } |
| |
| @Override |
| public void windowDeactivated(IWorkbenchWindow window) { |
| // do nothing |
| } |
| |
| @Override |
| public void windowClosed(IWorkbenchWindow window) { |
| if (enabled) |
| testWindows.remove(window); |
| } |
| |
| @Override |
| public void windowOpened(IWorkbenchWindow window) { |
| if (enabled) |
| testWindows.add(window); |
| } |
| } |
| |
| protected IWorkbench fWorkbench; |
| |
| private List<IWorkbenchWindow> testWindows; |
| |
| private TestWindowListener windowListener; |
| |
| /** |
| * Required to preserve the existing logging output when running tests with |
| * {@link BlockJUnit4ClassRunner}. |
| */ |
| @Rule |
| public TestWatcher testWatcher = new TestWatcher() { |
| @Override |
| protected void starting(Description description) { |
| runningTest = description.getMethodName(); |
| } |
| @Override |
| protected void finished(Description description) { |
| runningTest = null; |
| } |
| }; |
| /** |
| * Name of the currently executed test method. Only valid if test is executed |
| * with {@link BlockJUnit4ClassRunner}. |
| */ |
| private String runningTest = null; |
| |
| public UITestCase(String testName) { |
| super(testName); |
| // ErrorDialog.NO_UI = true; |
| testWindows = new ArrayList<>(3); |
| } |
| |
| /** |
| * Fails the test due to the given throwable. |
| */ |
| public static void fail(String message, Throwable e) { |
| // If the exception is a CoreException with a multistatus |
| // then print out the multistatus so we can see all the info. |
| if (e instanceof CoreException) { |
| IStatus status = ((CoreException) e).getStatus(); |
| write(status, 0); |
| } else |
| e.printStackTrace(); |
| fail(message + ": " + e); |
| } |
| |
| private static void indent(OutputStream output, int indent) { |
| for (int i = 0; i < indent; i++) |
| try { |
| output.write("\t".getBytes()); |
| } catch (IOException e) { |
| // ignore |
| } |
| } |
| |
| private static void write(IStatus status, int indent) { |
| PrintStream output = System.out; |
| indent(output, indent); |
| output.println("Severity: " + status.getSeverity()); |
| |
| indent(output, indent); |
| output.println("Plugin ID: " + status.getPlugin()); |
| |
| indent(output, indent); |
| output.println("Code: " + status.getCode()); |
| |
| indent(output, indent); |
| output.println("Message: " + status.getMessage()); |
| |
| if (status.getException() != null) { |
| indent(output, indent); |
| output.print("Exception: "); |
| status.getException().printStackTrace(output); |
| } |
| |
| if (status.isMultiStatus()) { |
| IStatus[] children = status.getChildren(); |
| for (int i = 0; i < children.length; i++) |
| write(children[i], indent + 1); |
| } |
| } |
| |
| /** |
| * Adds a window listener to the workbench to keep track of |
| * opened test windows. |
| */ |
| private void addWindowListener() { |
| windowListener = new TestWindowListener(); |
| fWorkbench.addWindowListener(windowListener); |
| } |
| |
| /** |
| * Removes the listener added by <code>addWindowListener</code>. |
| */ |
| private void removeWindowListener() { |
| if (windowListener != null) { |
| fWorkbench.removeWindowListener(windowListener); |
| } |
| } |
| |
| /** |
| * Outputs a trace message to the trace output device, if enabled. |
| * By default, trace messages are sent to <code>System.out</code>. |
| * |
| * @param msg the trace message |
| */ |
| protected void trace(String msg) { |
| System.out.println(msg); |
| } |
| |
| /** |
| * Simple implementation of setUp. Subclasses are prevented from overriding this |
| * method to maintain logging consistency. doSetUp() should be overridden |
| * instead. |
| * <p> |
| * This method is public and annotated with {@literal @}{@link Before} to setup |
| * tests which are configured to {@link RunWith} JUnit4 runner. |
| * </p> |
| */ |
| @Before |
| @Override |
| public final void setUp() throws Exception { |
| super.setUp(); |
| fWorkbench = PlatformUI.getWorkbench(); |
| String name = runningTest != null ? runningTest : this.getName(); |
| trace(TestRunLogUtil.formatTestStartMessage(name)); |
| addWindowListener(); |
| doSetUp(); |
| |
| } |
| |
| /** |
| * Sets up the fixture, for example, open a network connection. |
| * This method is called before a test is executed. |
| * The default implementation does nothing. |
| * Subclasses may extend. |
| */ |
| protected void doSetUp() throws Exception { |
| // do nothing. |
| } |
| |
| /** |
| * Simple implementation of tearDown. Subclasses are prevented from overriding |
| * this method to maintain logging consistency. doTearDown() should be |
| * overridden instead. |
| * <p> |
| * This method is public and annotated with {@literal @}{@link After} to setup |
| * tests which are configured to {@link RunWith} JUnit4 runner. |
| * </p> |
| */ |
| @After |
| @Override |
| public final void tearDown() throws Exception { |
| String name = runningTest != null ? runningTest : this.getName(); |
| trace(TestRunLogUtil.formatTestFinishedMessage(name)); |
| removeWindowListener(); |
| doTearDown(); |
| fWorkbench = null; |
| } |
| |
| /** |
| * Tears down the fixture, for example, close a network connection. |
| * This method is called after a test is executed. |
| * The default implementation closes all test windows, processing events both before |
| * and after doing so. |
| * Subclasses may extend. |
| */ |
| protected void doTearDown() throws Exception { |
| processEvents(); |
| closeAllTestWindows(); |
| processEvents(); |
| } |
| |
| public static void processEvents() { |
| Display display = PlatformUI.getWorkbench().getDisplay(); |
| if (display != null) |
| while (display.readAndDispatch()) |
| ; |
| } |
| |
| /** |
| * Utility for waiting until the execution of jobs of any family has |
| * finished or timeout is reached. If no jobs are running, the method waits |
| * given minimum wait time. While this method is waiting for jobs, UI events |
| * are processed. |
| * |
| * @param minTimeMs |
| * minimum wait time in milliseconds |
| * @param maxTimeMs |
| * maximum wait time in milliseconds |
| */ |
| public static void waitForJobs(long minTimeMs, long maxTimeMs) { |
| if (maxTimeMs < minTimeMs) { |
| throw new IllegalArgumentException("Max time is smaller as min time!"); |
| } |
| final long start = System.currentTimeMillis(); |
| while (System.currentTimeMillis() - start < minTimeMs) { |
| processEvents(); |
| sleep(10); |
| } |
| while (!Job.getJobManager().isIdle() && System.currentTimeMillis() - start < maxTimeMs) { |
| processEvents(); |
| sleep(10); |
| } |
| } |
| |
| /** |
| * Pauses execution of the current thread |
| * |
| * @param millis |
| */ |
| protected static void sleep(long millis) { |
| try { |
| Thread.sleep(millis); |
| } catch (InterruptedException e) { |
| return; |
| } |
| } |
| |
| /** |
| * Tries to make given shell active. |
| * |
| * <p> |
| * Note: the method runs at least 1000 milliseconds to make sure the active |
| * window is really active, see |
| * https://bugs.eclipse.org/bugs/show_bug.cgi?id=417258#c27 |
| * |
| * @param shell |
| * non null |
| * @return true if the given shell is active for the current display |
| */ |
| public static boolean forceActive(Shell shell) { |
| Display display = PlatformUI.getWorkbench().getDisplay(); |
| Shell[] shells = display.getShells(); |
| for (Shell s : shells) { |
| if (s.isVisible()) { |
| s.setMinimized(true); |
| } |
| processEvents(); |
| } |
| waitForJobs(200, 3000); |
| for (Shell s : shells) { |
| if (s.isVisible()) { |
| s.setMinimized(false); |
| } |
| processEvents(); |
| } |
| waitForJobs(200, 3000); |
| shell.setVisible(false); |
| processEvents(); |
| shell.setMinimized(true); |
| processEvents(); |
| waitForJobs(200, 3000); |
| shell.setVisible(true); |
| processEvents(); |
| shell.setMinimized(false); |
| processEvents(); |
| shell.forceActive(); |
| processEvents(); |
| shell.forceFocus(); |
| processEvents(); |
| waitForJobs(400, 3000); |
| return display.getActiveShell() == shell; |
| } |
| |
| public static class ShellStateListener implements ShellListener { |
| private AtomicBoolean shellIsActive; |
| |
| public ShellStateListener(AtomicBoolean shellIsActive) { |
| this.shellIsActive = shellIsActive; |
| } |
| |
| @Override |
| public void shellIconified(ShellEvent e) { |
| shellIsActive.set(false); |
| } |
| |
| @Override |
| public void shellDeiconified(ShellEvent e) { |
| shellIsActive.set(true); |
| } |
| |
| @Override |
| public void shellDeactivated(ShellEvent e) { |
| shellIsActive.set(false); |
| } |
| |
| @Override |
| public void shellClosed(ShellEvent e) { |
| shellIsActive.set(false); |
| } |
| |
| @Override |
| public void shellActivated(ShellEvent e) { |
| shellIsActive.set(true); |
| } |
| } |
| |
| protected static interface Condition { |
| public boolean compute(); |
| } |
| |
| /** |
| * |
| * @param condition |
| * , or null if this should only wait |
| * @param timeout |
| * , -1 if forever |
| * @return true if successful, false if time out or interrupted |
| */ |
| protected boolean processEventsUntil(Condition condition, long timeout) { |
| long startTime = System.currentTimeMillis(); |
| Display display = getWorkbench().getDisplay(); |
| while (condition == null || !condition.compute()) { |
| if (timeout != -1 |
| && System.currentTimeMillis() - startTime > timeout) { |
| return false; |
| } |
| while (display.readAndDispatch()) |
| ; |
| try { |
| Thread.sleep(20); |
| } catch (InterruptedException e) { |
| Thread.currentThread().interrupt(); |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| /** |
| * Open a test window with the empty perspective. |
| */ |
| public IWorkbenchWindow openTestWindow() { |
| return openTestWindow(EmptyPerspective.PERSP_ID); |
| } |
| |
| /** |
| * Open a test window with the provided perspective. |
| */ |
| public IWorkbenchWindow openTestWindow(String perspectiveId) { |
| try { |
| IWorkbenchWindow window = fWorkbench.openWorkbenchWindow( |
| perspectiveId, getPageInput()); |
| waitOnShell(window.getShell()); |
| return window; |
| } catch (WorkbenchException e) { |
| fail("Problem opening test window", e); |
| return null; |
| } |
| } |
| |
| /** |
| * Try and process events until the new shell is the active shell. This may |
| * never happen, so time out after a suitable period. |
| * |
| * @param shell |
| * the shell to wait on |
| * @since 3.2 |
| */ |
| private void waitOnShell(Shell shell) { |
| processEvents(); |
| waitForJobs(100, 5000); |
| } |
| |
| /** |
| * Close all test windows. |
| */ |
| public void closeAllTestWindows() { |
| List<IWorkbenchWindow> testWindowsCopy = new ArrayList<>(testWindows); |
| for (IWorkbenchWindow testWindow : testWindowsCopy) { |
| testWindow.close(); |
| } |
| testWindows.clear(); |
| } |
| |
| /** |
| * Open a test page with the empty perspective in a window. |
| */ |
| public IWorkbenchPage openTestPage(IWorkbenchWindow win) { |
| IWorkbenchPage[] pages = openTestPage(win, 1); |
| if (pages != null) { |
| return pages[0]; |
| } |
| return null; |
| } |
| |
| /** |
| * Open "n" test pages with the empty perspective in a window. |
| */ |
| public IWorkbenchPage[] openTestPage(IWorkbenchWindow win, int pageTotal) { |
| try { |
| IWorkbenchPage[] pages = new IWorkbenchPage[pageTotal]; |
| IAdaptable input = getPageInput(); |
| |
| for (int i = 0; i < pageTotal; i++) { |
| pages[i] = win.openPage(EmptyPerspective.PERSP_ID, input); |
| } |
| return pages; |
| } catch (WorkbenchException e) { |
| fail("Problem opening test page", e); |
| return null; |
| } |
| } |
| |
| /** |
| * Close all pages within a window. |
| */ |
| public void closeAllPages(IWorkbenchWindow window) { |
| IWorkbenchPage[] pages = window.getPages(); |
| for (IWorkbenchPage page : pages) { |
| page.close(); |
| } |
| } |
| |
| /** |
| * Set whether the window listener will manage opening and closing of created windows. |
| */ |
| protected void manageWindows(boolean manage) { |
| windowListener.setEnabled(manage); |
| } |
| |
| /** |
| * Returns the workbench. |
| * |
| * @return the workbench |
| * @since 3.1 |
| */ |
| protected IWorkbench getWorkbench() { |
| return fWorkbench; |
| } |
| } |