@Test
public void testMultiAlias() throws Exception {
String inputStr = "from a as b, b as c, c as d";
FromClause actual = TestUtil.parser(inputStr).from_clause().e;
FromClause expected = new FromClause().add(
new FromEntity("a", "b")).add(new FromEntity("b", "c")).add(new FromEntity("c", "d"));
Assert.assertEquals(expected, actual);
}