public void testIncompleteExpr() throws Exception {
NameTemplate template = new NameTemplateParser().parse("${", defaultValidator());
assertEquals("${", template.format(getResolver()));
template = new NameTemplateParser().parse("x${x${x", defaultValidator());
assertEquals("x${x${x", template.format(getResolver()));
template = new NameTemplateParser().parse("x${}", defaultValidator());
assertEquals("x${}", template.format(getResolver()));
// test with disabled validator because we want it to fail @ evaluation time