g.setWidget(0, 0, new Label("first"));
// Pre-Assert
assertEquals("<div class=\"gwt-Label\">first</div>", g.getHTML(0, 0));
// Act
g.resize(2, 2);
// Assert
assertEquals("<div class=\"gwt-Label\">first</div>", g.getHTML(0, 0));
assertEquals(" ", g.getHTML(0, 1));
assertEquals(" ", g.getHTML(1, 0));