message: Fixed unit tests
  Fixed
diff: @@ -3,6 +3,7 @@ import { describe, it } from 'mocha';
  import { convertTime, DataLayer, SeriesUpdatePacket, stringToBusinessDay } from '../../src/api/data-layer';
  import { ensureDefined } from '../../src/helpers/assertions';
  +import { Palette } from '../../src/model/palette';
  import { Series } from '../../src/model/series';
  import { SeriesData } from '../../src/model/series-data';
  import { BusinessDay, TimePointIndex, UTCTimestamp } from '../../src/model/time-data';
  @@ -16,6 +17,9 @@ function createSeriesMock(): Series {
  data: () => {
  return data;
  },
  + palette: () => {
  + return new Palette();
  + },
  } as Series;
  }
  