protected void checkSucceeds(
ParseTreeNode inputNode, ParseTreeNode expectedResultNode, MessageLevel highest) {
mq.getMessages().clear();
ParseTreeNode actualResultNode = getRewriter().expand(inputNode);
for (Message m : mq.getMessages()) {
if (m.getMessageLevel().compareTo(highest) >= 0) {
fail(m.toString());
}
}
if (expectedResultNode != null) {
// Test that the source code-like renderings are identical. This
// will catch any obvious differences between expected and
// actual.
assertEquals(render(expectedResultNode), render(actualResultNode));
// Then, for good measure, test that the S-expression-like
// formatted representations are also identical. This will catch
// any differences in tree topology that somehow do not appear
// in the source code representation (usually due to programming
// errors).
assertEquals(TestUtil.format(expectedResultNode), TestUtil.format(actualResultNode));
}
}
