@Before
  public void setUp() {
    this.provider = createProvider();
    this.file = Directory.create(0, fileTimeSource.now());

    Map<String, ?> defaultValues = createDefaultValues();
    setDefaultValues(file, provider, defaultValues);

    Set<? extends AttributeProvider> inheritedProviders = createInheritedProviders();
    for (AttributeProvider inherited : inheritedProviders) {
      setDefaultValues(file, inherited, defaultValues);
    }
  }
Creates the set of providers the provider being tested depends on.
jimfs/src/test/java/com/google/common/jimfs/AbstractAttributeProviderTest.java