includeCore 'foo'
                    includeXpack 'bar'
                }
            }

            tasks.named("copyYamlTestsTask").configure {
                it.substitutions = [ 'replacedValue' : 'replacedWithValue' ]
            }
        """
        String apiCore1 = "foo1.json"
        String apiCore2 = "foo2.json"
        String apiXpack = "xpack.json"
        String coreTest = "foo/10_basic.yml"

    }
  }

  protected final void expectReplacement(Entry<K, V> newEntry) {
    List<Entry<K, V>> expected = copyToList(getSampleElements());
    replaceValue(expected, newEntry);
    expectContents(expected);
  }

  private void replaceValue(List<Entry<K, V>> expected, Entry<K, V> newEntry) {
    for (ListIterator<Entry<K, V>> i = expected.listIterator(); i.hasNext(); ) {

    }
  }

  protected final void expectReplacement(Entry<K, V> newEntry) {
    List<Entry<K, V>> expected = copyToList(getSampleElements());
    replaceValue(expected, newEntry);
    expectContents(expected);
  }

  private void replaceValue(List<Entry<K, V>> expected, Entry<K, V> newEntry) {
    for (ListIterator<Entry<K, V>> i = expected.listIterator(); i.hasNext(); ) {