source: trip-planner-front/node_modules/hdr-histogram-js/src/index.spec.ts

/*
 * This is a TypeScript port of the original Java version, which was written by
 * Gil Tene as described in
 * https://github.com/HdrHistogram/HdrHistogram
 * and released to the public domain, as explained at
 * http://creativecommons.org/publicdomain/zero/1.0/
 */
import * as hdr from "./index";

describe("Histogram builder", () => {
  it("should build histogram with default values", () => {
    // given
    // when
    const histogram = hdr.build();
    // then
    expect(histogram).not.toBeNull();
    expect(histogram.autoResize).toBe(true);
    expect(histogram.highestTrackableValue).toBe(2);
  });

  it("should build histogram with custom parameters", () => {
    // given
    // when
    const histogram = hdr.build({
      bitBucketSize: 32,
      numberOfSignificantValueDigits: 2,
    });
    const expectedHistogram = new hdr.Int32Histogram(1, 2, 2);
    expectedHistogram.autoResize = true;

    histogram.recordValue(12345);
    expectedHistogram.recordValue(12345);

    // then
    expect(histogram.mean).toBe(expectedHistogram.mean);
  });
});