@Test
    void testReadingConfigurationRuleBase() {
        RuleBase parent = searcher.getRuleBase("parent");
        assertNotNull(parent);
        assertEquals("parent", parent.getName());
        assertEquals("parent", parent.getSource());
    }
Tests creating a set of rule bases (the same set as in inheritingrules) from config

@author bratseth
container-search/src/test/java/com/yahoo/prelude/semantics/test/ConfigurationTestCase.java