How can I exercise the quick assist feature of Eclipse using SWTBot? - eclipse

Question

I'd like to use SWTBot to inline a local variable via the quick assist menu. My SWTBot test pops up the quick assist menu, but it fails to select the proposal item. I've created a minimal project on GitHub that demonstrates this problem and opened an issue that describes the problem in detail.

Answer 1

I had the same problem with the auto-completion menu and the only workaround I found was to implement my own autoComplete methods. You can easily do something similar for quick assist. My code has been tested under windows and unix systems:
package aaa.bbb.ccc;
import static org.eclipse.swtbot.swt.finder.matchers.WidgetMatcherFactory.widgetOfType;
import java.util.List;
import org.eclipse.jface.bindings.keys.KeyStroke;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Table;
import org.eclipse.swtbot.swt.finder.SWTWorkbenchBot;
import org.eclipse.swtbot.swt.finder.exceptions.WidgetNotFoundException;
import org.eclipse.swtbot.swt.finder.finders.UIThreadRunnable;
import org.eclipse.swtbot.swt.finder.results.VoidResult;
import org.eclipse.swtbot.swt.finder.utils.SWTBotPreferences;
import org.eclipse.swtbot.swt.finder.widgets.SWTBotTable;
import org.junit.Assert;
public abstract class AutoCompletionHelper {
public static void autoCompleteWithFirstMatchingProposal(SWTWorkbenchBot bot) {
SWTBotTable proposalsTable = showCompletionProposalsTable(bot);
Assert.assertTrue("No completion proposals found", proposalsTable.rowCount() > 0);
selectProposal(proposalsTable, 0);
}
public static void autoCompleteWithProposal(SWTWorkbenchBot bot, String completionProposal) {
SWTBotTable proposalsTable = showCompletionProposalsTable(bot);
int rowCount = proposalsTable.rowCount();
int index = -1;
int matchingProposalsCount = 0;
for (int i = 0; i < rowCount; i++) {
if (proposalsTable.cell(i, 0).startsWith(completionProposal)) {
index = i;
matchingProposalsCount++;
}
}
Assert.assertFalse("No completion proposals matching '" + completionProposal + "'", matchingProposalsCount == 0);
Assert.assertFalse("Multiple completion proposals matching '" + completionProposal + "'", matchingProposalsCount > 1);
selectProposal(proposalsTable, index);
}
private static SWTBotTable showCompletionProposalsTable(EclipseBot bot) {
bot.pressShortcut(KeyStroke.getInstance(SWT.CTRL, 0), KeyStroke.getInstance(0, SWT.SPACE));
bot.sleep(100); //Wait for auto-completion shell to be displayed
List<Shell> shells = bot.shells("");
Table proposalsTable = null;
long timeout = SWTBotPreferences.TIMEOUT;
SWTBotPreferences.TIMEOUT = 200;
boolean findInvisibleControls = bot.getFinder().shouldFindInvisibleControls();
bot.getFinder().setShouldFindInvisibleControls(true);
try {
for (Shell shell : shells) {
try {
proposalsTable = bot.widget(widgetOfType(Table.class), shell);
} catch (WidgetNotFoundException ex) {
continue;
}
break;
}
} finally {
bot.getFinder().setShouldFindInvisibleControls(findInvisibleControls);
SWTBotPreferences.TIMEOUT = timeout;
}
if (proposalsTable == null) {
throw new RuntimeException("Did not find any completion proposals table ...");
}
return new SWTBotTable(proposalsTable);
}
private static void selectProposal(final SWTBotTable proposalsTable, final int proposalIndex) {
UIThreadRunnable.asyncExec(new VoidResult() {
#Override
public void run() {
Table table = proposalsTable.widget;
table.setSelection(proposalIndex);
Event event = new Event();
event.type = SWT.Selection;
event.widget = table;
event.item = table.getItem(proposalIndex);
table.notifyListeners(SWT.Selection, event);
table.notifyListeners(SWT.DefaultSelection, event);
}
});
}
}