swtbot: Make cancel test more robust

The import dialog might close too fast and then the cancel button is
not available anymore. This happens sometimes in CI. To make the
test more robust detect that case and continue the test execution.

Signed-off-by: Bernd Hufmann <bernd.hufmann@ericsson.com>

tmf/org.eclipse.tracecompass.tmf.remote.ui.swtbot.tests/src/org/eclipse/tracecompass/tmf/remote/ui/swtbot/tests/fetch/FetchRemoteTracesTest.java

@@ -33,6 +33,7 @@
 import org.eclipse.osgi.util.NLS;
 import org.eclipse.swtbot.eclipse.finder.SWTWorkbenchBot;
 import org.eclipse.swtbot.swt.finder.SWTBot;
+import org.eclipse.swtbot.swt.finder.exceptions.WidgetNotFoundException;
 import org.eclipse.swtbot.swt.finder.junit.SWTBotJunit4ClassRunner;
 import org.eclipse.swtbot.swt.finder.keyboard.Keystrokes;
 import org.eclipse.swtbot.swt.finder.utils.SWTBotPreferences;
@@ -43,6 +44,7 @@
 import org.eclipse.swtbot.swt.finder.widgets.SWTBotText;
 import org.eclipse.swtbot.swt.finder.widgets.SWTBotTree;
 import org.eclipse.swtbot.swt.finder.widgets.SWTBotTreeItem;
+import org.eclipse.swtbot.swt.finder.widgets.TimeoutException;
 import org.eclipse.tracecompass.ctf.core.tests.shared.LttngTraceGenerator;
 import org.eclipse.tracecompass.tmf.remote.ui.swtbot.tests.TmfRemoteUISWTBotTestPlugin;
 import org.eclipse.tracecompass.tmf.ui.dialog.TmfFileDialogFactory;
@@ -635,8 +637,11 @@ public void test_8_14() {
         SWTBotShell shell = fBot.shell(FETCH_SHELL_NAME).activate();
         fBot.comboBox().setSelection("TestAllRecursive");
         fBot.button("Next >").click();
-        fBot.button("Finish").click();
-        fBot.button("Cancel").click();
+        try {
+            fBot.button("Cancel").click();
+        } catch (WidgetNotFoundException | TimeoutException e) {
+            // shell closed too fast due to timing... ignore
+        }
         fBot.waitUntil(Conditions.shellCloses(shell), FETCH_TIME_OUT);
         WaitUtils.waitForJobs();