/**
* Given a list of Class objects for plan node subclasses, asserts if the given plan doesn't
* contain instances of those classes.
*/
protected static void assertClassesMatchNodeChain(
List<Class<? extends AbstractPlanNode>> expectedClasses, AbstractPlanNode actualPlan) {
AbstractPlanNode pn = actualPlan;
for (Class<? extends AbstractPlanNode> c : expectedClasses) {
assertFalse("Actual plan shorter than expected", pn == null);
assertTrue(
"Expected plan to contain an instance of "
+ c.getSimpleName()
+ ", "
+ "instead found "
+ pn.getClass().getSimpleName(),
c.isInstance(pn));
if (pn.getChildCount() > 0) pn = pn.getChild(0);
else pn = null;
}
assertTrue("Actual plan longer than expected", pn == null);
}
