@@ -0,0 +1,730 @@
+package com.vaadin.tests.components.combobox;%0D%0A%0D%0Aimport com.vaadin.tests.components.TestBase;%0D%0Aimport com.vaadin.ui.ComboBox;%0D%0A%0D%0Apublic class ComboxBoxErrorMessage extends TestBase %7B%0D%0A%0D%0A    @Override%0D%0A    protected void setup() %7B%0D%0A        ComboBox cb = new ComboBox(%22%22);%0D%0A        cb.setRequired(true);%0D%0A        cb.setRequiredError(%22You must select something%22);%0D%0A        addComponent(cb);%0D%0A    %7D%0D%0A%0D%0A    @Override%0D%0A    protected String getDescription() %7B%0D%0A        return %22The ComboBox should show an %5C%22You must select something%5C%22 tooltip when the cursor is hovering it. Both when hovering the textfield and the dropdown button.%22;%0D%0A    %7D%0D%0A%0D%0A    @Override%0D%0A    protected Integer getTicketNumber() %7B%0D%0A        return 3345;%0D%0A    %7D%0D%0A%0D%0A%7D%0D%0A

Test case for #3345