private List<Runner> getRunners(Class<?> testClass, GrammarTestDescriptor grammarTest) throws InitializationError {
List<Runner> runners = new ArrayList<Runner>();
for ( GrammarRuleTestGroupDescriptor group : grammarTest.getTestGroups() ) {
runners.add( new GrammarRuleStatements( testClass, grammarTest, group ) );
}
return runners;
}