1 files changed, 128 insertions, 0 deletions
diff --git a/org.eclipse.ui.workbench.texteditor.tests/src/org/eclipse/ui/workbench/texteditor/tests/StatusEditorTest.java b/org.eclipse.ui.workbench.texteditor.tests/src/org/eclipse/ui/workbench/texteditor/tests/StatusEditorTest.java
new file mode 100644
index 00000000000..0302e621b38
--- /dev/null
+++ b/org.eclipse.ui.workbench.texteditor.tests/src/org/eclipse/ui/workbench/texteditor/tests/StatusEditorTest.java
@@ -0,0 +1,128 @@
+/*******************************************************************************
+ * Copyright (c) 2017 Vasili Gulevich and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *      Vasili Gulevich <vasili.gulevich@xored.com> - initial implementation
+ *      Andrey Loskutov <loskutov@gmx.de> - polishing and integration
+ *******************************************************************************/
+package org.eclipse.ui.workbench.texteditor.tests;
+
+import java.lang.reflect.Method;
+import java.net.URI;
+import java.util.ArrayList;
+import java.util.List;
+
+import org.junit.After;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+
+import org.eclipse.swt.custom.CTabFolder;
+import org.eclipse.swt.widgets.Display;
+
+import org.eclipse.core.filesystem.EFS;
+
+import org.eclipse.core.runtime.ILog;
+import org.eclipse.core.runtime.ILogListener;
+import org.eclipse.core.runtime.IStatus;
+import org.eclipse.core.runtime.Platform;
+import org.eclipse.core.runtime.Status;
+
+import org.eclipse.ui.IEditorPart;
+import org.eclipse.ui.IWorkbenchPage;
+import org.eclipse.ui.IWorkbenchWindow;
+import org.eclipse.ui.PlatformUI;
+import org.eclipse.ui.WorkbenchException;
+import org.eclipse.ui.ide.FileStoreEditorInput;
+import org.eclipse.ui.internal.PartSite;
+
+import org.eclipse.ui.texteditor.AbstractTextEditor;
+import org.eclipse.ui.texteditor.IDocumentProvider;
+
+import org.eclipse.ui.editors.text.EditorsUI;
+import org.eclipse.ui.editors.text.ForwardingDocumentProvider;
+import org.eclipse.ui.editors.text.TextEditor;
+
+public class StatusEditorTest {
+	private IWorkbenchWindow window;
+	private Display display;
+	private IWorkbenchPage page;
+
+	@Before
+	public void before() throws WorkbenchException {
+		window = PlatformUI.getWorkbench().openWorkbenchWindow(null);
+		display = window.getShell().getDisplay();
+		page = window.getActivePage();
+		processEvents();
+	}
+
+	@After
+	public void after() {
+		window.close();
+		page = null;
+		processEvents();
+	}
+
+	/*
+	 * https://bugs.eclipse.org/bugs/attachment.cgi?bugid=320672
+	 * 
+	 * No exceptions are thrown when a status editor displaying an erroneous status is activated with a mouse click. 
+	 * @throws Exception 
+	 */
+	@Test
+	public void doNotThrowOnActivationInStale() throws Exception {
+		IEditorPart editor1 = openNonExistentFile(page, new URI("file:/1.txt"));
+		openNonExistentFile(page, new URI("file:/2.txt"));
+		ILog log = Platform.getLog(Platform.getBundle("org.eclipse.e4.ui.workbench"));
+		List<String> logEvents = new ArrayList<>();
+		ILogListener listener = (status, plugin) -> logEvents.add(status.toString());
+		log.addLogListener(listener);
+		// Clicks are not equivalent to activation from API, so we need this
+		// hack to imitate tab clicks.
+		CTabFolder folder = (CTabFolder) (((PartSite) editor1.getSite()).getModel().getParent().getWidget());
+		try {
+			folder.setSelection(0);
+			processEvents();
+			folder.setSelection(1);
+			processEvents();
+		} finally {
+			log.removeLogListener(listener);
+		}
+		if(!logEvents.isEmpty()) {
+			Assert.assertEquals("Unexpected errors logged", "", logEvents.toString());
+		}
+	}
+
+	private void processEvents() {
+		while (display.readAndDispatch()) {
+			//
+		}
+	}
+
+	private IEditorPart openNonExistentFile(IWorkbenchPage page1, URI uri) throws Exception {
+		FileStoreEditorInput input = new FileStoreEditorInput(EFS.getStore(uri));
+		TextEditor editor = (TextEditor) page1.openEditor(input, EditorsUI.DEFAULT_TEXT_EDITOR_ID, true);
+		Method setMethod= AbstractTextEditor.class.getDeclaredMethod("setDocumentProvider", IDocumentProvider.class);
+		setMethod.setAccessible(true);
+		setMethod.invoke(editor, new ErrorDocumentProvider(editor.getDocumentProvider()));
+		editor.setInput(input);
+		processEvents();
+		return editor;
+	}
+
+	private static class ErrorDocumentProvider extends ForwardingDocumentProvider {
+		public ErrorDocumentProvider(IDocumentProvider parent) {
+			super("", ignored -> { /**/	}, parent);
+		}
+
+		@Override
+		public IStatus getStatus(Object element) {
+			return new Status(IStatus.ERROR, "org.eclipse.ui.workbench.texteditor.tests", 
+					0, "This document provider always fails", null);
+		}
+	}
+}