@Test
    void processingHandler_gets_only_processing_chains_in_chains_config()  {
        createClusterWithProcessingAndSearchChains();
        String processingHandlerConfigId = "default/component/" + PROCESSING_HANDLER_CLASS;
        String chainsConfig = getChainsConfig(processingHandlerConfigId);
        assertThat(chainsConfig, containsLineWithPattern(".*\\.id \"testProcessor@default\"$"));
        assertThat(chainsConfig, not(containsLineWithPattern(".*\\.id \"testSearcher@default\"$")));
    }
Tests for "core functionality" of the container model, e.g. ports, or the 'components' and 'bundles' configs.

Before adding a new test to this class, check if the test fits into one of the other existing subclasses
of {@link ContainerModelBuilderTestBase}. If not, consider creating a new subclass.

@author gjoranv
config-model/src/test/java/com/yahoo/vespa/model/container/xml/ContainerModelBuilderTest.java