it('getGranularities appropriately for number', () => {
    var defaults = getGranularities('number');
    var expectedDefaults = [0.1, 1, 10, 100, 1000].map(granularityFromJS);

    expect(immutableArraysEqual(defaults, expectedDefaults), 'number defaults are returned').to.equal(true);

    var bucketedBy = getGranularities('number', granularityFromJS(100), false);
    var expectedGrans = [100, 500, 1000, 5000, 10000].map(granularityFromJS);

    expect(immutableArraysEqual(bucketedBy, expectedGrans), 'bucketed by returns larger granularities').to.equal(true);

  });

 public equals(other: Customization): boolean {
   return Customization.isCustomization(other) &&
     this.title === other.title &&
     this.headerBackground === other.headerBackground &&
     this.customLogoSvg === other.customLogoSvg &&
     immutableArraysEqual(this.externalViews, other.externalViews);
 }

 public equals(other: Dimension): boolean {
   return Dimension.isDimension(other) &&
     this.name === other.name &&
     this.title === other.title &&
     this.expression.equals(other.expression) &&
     this.kind === other.kind &&
     this.url === other.url &&
     immutableArraysEqual(this.granularities, other.granularities);
 }

 public equals(other: Dimension): boolean {
   return Dimension.isDimension(other) &&
     this.name === other.name &&
     this.title === other.title &&
     this.formula === other.formula &&
     this.kind === other.kind &&
     this.url === other.url &&
     immutableArraysEqual(this.granularities, other.granularities) &&
     granularityEquals(this.bucketedBy, other.bucketedBy);
 }

export function immutableListsEqual<T extends Equalable>(listA: List<T>, listB: List<T>): boolean {
  if (listA === listB) return true;
  if (!listA !== !listB) return false;
  return immutableArraysEqual(listA.toArray(), listB.toArray());
}

 public equals(other: LinkViewConfig): boolean {
   return LinkViewConfig.isLinkViewConfig(other) &&
     this.title === other.title &&
     immutableArraysEqual(this.linkItems, other.linkItems);
 }