sidePanel04.splitter().dragAndDrop(-300, 0);
borderLayoutPanel00.content().assertExpressionEquals("offsetWidth", 100);
sidePanel04.splitter().dragAndDrop(-125, 0);
borderLayoutPanel00.content().assertExpressionEquals("offsetWidth", 0);
sidePanel04.splitter().dragAndDrop(-125, 0);
borderLayoutPanel00.content().assertExpressionEquals("offsetWidth", 0);
sidePanel04.splitter().dragAndDrop(+5, 0);
borderLayoutPanel00.content().assertExpressionEquals("offsetWidth", 5);
sidePanel04.splitter().dragAndDrop(+1000, 0);
borderLayoutPanel00.content().assertExpressionEquals("offsetWidth", 443);
sidePanel04.splitter().dragAndDrop(-43, 0);