import { build, HistogramLogReader, HistogramLogWriter } from ".";

describe("Logs", () => {
  it("should give same result after been written then read", () => {
    // given
    let buffer = "";
    const writer = new HistogramLogWriter((content) => {
      buffer += content;
    });
    writer.outputLogFormatVersion();
    writer.outputStartTime(12345000);
    writer.outputLegend();
    const inputHistogram = build();
    inputHistogram.recordValue(42);
    // when
    writer.outputIntervalHistogram(inputHistogram, 12345042, 1234056, 1);
    const reader = new HistogramLogReader(buffer);
    const outputHistogram = reader.nextIntervalHistogram();
    // then
    expect(outputHistogram).not.toBeNull();
    // @ts-ignore
    expect(outputHistogram.mean).toBe(inputHistogram.mean);
  });
});