NET-Web-API-w-Angular/my-app/node_modules/hdr-histogram-js/dist/Recorder.spec.js

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2024-02-09 00:38:41 +00:00
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const Recorder_1 = require("./Recorder");
const Int32Histogram_1 = require("./Int32Histogram");
const PackedHistogram_1 = require("./PackedHistogram");
const wasm_1 = require("./wasm");
describe("Recorder", () => {
beforeAll(wasm_1.initWebAssembly);
it("should record value", () => {
// given
const recorder = new Recorder_1.default();
// when
recorder.recordValue(123);
// then
const histogram = recorder.getIntervalHistogram();
expect(histogram.totalCount).toBe(1);
});
it("should record value in a packed histogram", () => {
// given
const recorder = new Recorder_1.default({
numberOfSignificantValueDigits: 5,
bitBucketSize: "packed",
});
// when
recorder.recordValue(123);
// then
expect(recorder.getIntervalHistogram() instanceof PackedHistogram_1.default).toBe(true);
expect(recorder.getIntervalHistogram() instanceof PackedHistogram_1.default).toBe(true);
});
it("should record value in a WASM histogram", () => {
// given
const recorder = new Recorder_1.default({
numberOfSignificantValueDigits: 5,
bitBucketSize: "packed",
useWebAssembly: true,
});
try {
// when
recorder.recordValue(123);
// then
expect(recorder.getIntervalHistogram() instanceof wasm_1.WasmHistogram).toBe(true);
}
finally {
recorder.destroy();
}
});
it("should record value with count", () => {
// given
const recorder = new Recorder_1.default();
// when
recorder.recordValueWithCount(123, 3);
// then
const histogram = recorder.getIntervalHistogram();
expect(histogram.totalCount).toBe(3);
});
it("should record value with expected interval", () => {
// given
const recorder = new Recorder_1.default();
// when
recorder.recordValueWithExpectedInterval(223, 100);
// then
const histogram = recorder.getIntervalHistogram();
expect(histogram.totalCount).toBe(2);
});
it("should record value in a packed histogram", () => {
// given
const recorder = new Recorder_1.default({ bitBucketSize: "packed" });
recorder.recordValue(42);
// when
const histogram = recorder.getIntervalHistogram();
// then
expect(histogram instanceof PackedHistogram_1.default).toBe(true);
});
it("should record value only on one interval histogram", () => {
// given
const recorder = new Recorder_1.default();
// when
recorder.recordValue(123);
const firstHistogram = recorder.getIntervalHistogram();
// then
const secondHistogram = recorder.getIntervalHistogram();
expect(secondHistogram.totalCount).toBe(0);
});
it("should not record value on returned interval histogram", () => {
// given
const recorder = new Recorder_1.default();
const firstHistogram = recorder.getIntervalHistogram();
const secondHistogram = recorder.getIntervalHistogram();
// when
firstHistogram.recordValue(42); // should have 0 impact on recorder
const thirdHistogram = recorder.getIntervalHistogram();
// then
expect(thirdHistogram.totalCount).toBe(0);
});
it("should return interval histograms with expected significant digits", () => {
// given
const recorder = new Recorder_1.default({ numberOfSignificantValueDigits: 4 });
const firstHistogram = recorder.getIntervalHistogram();
const secondHistogram = recorder.getIntervalHistogram();
// when
const thirdHistogram = recorder.getIntervalHistogram();
// then
expect(thirdHistogram.numberOfSignificantValueDigits).toBe(4);
});
it("should return recycled histograms when asking for interval histogram", () => {
// given
const recorder = new Recorder_1.default();
const firstHistogram = recorder.getIntervalHistogram();
// when
const secondHistogram = recorder.getIntervalHistogram(firstHistogram);
const thirdHistogram = recorder.getIntervalHistogram();
// then
expect(thirdHistogram === firstHistogram).toBe(true);
});
it("should throw an error when trying to recycle an histogram not created by the recorder", () => {
// given
const recorder = new Recorder_1.default();
const somehistogram = new Int32Histogram_1.default(1, 2, 3);
// when & then
expect(() => recorder.getIntervalHistogram(somehistogram)).toThrowError();
});
it("should reset histogram when recycling", () => {
// given
const recorder = new Recorder_1.default();
recorder.recordValue(42);
const firstHistogram = recorder.getIntervalHistogram();
// when
const secondHistogram = recorder.getIntervalHistogram(firstHistogram);
const thirdHistogram = recorder.getIntervalHistogram();
// then
expect(thirdHistogram.totalCount).toBe(0);
});
it("should set timestamps on first interval histogram", () => {
// given
let currentTime = 42;
let clock = () => currentTime;
const recorder = new Recorder_1.default({}, clock);
// when
currentTime = 123;
const histogram = recorder.getIntervalHistogram();
// then
expect(histogram.startTimeStampMsec).toBe(42);
expect(histogram.endTimeStampMsec).toBe(123);
});
it("should set timestamps on any interval histogram", () => {
// given
let currentTime = 42;
let clock = () => currentTime;
const recorder = new Recorder_1.default({}, clock);
currentTime = 51;
const firstHistogram = recorder.getIntervalHistogram();
// when
currentTime = 56;
const secondHistogram = recorder.getIntervalHistogram();
// then
expect(secondHistogram.startTimeStampMsec).toBe(51);
expect(secondHistogram.endTimeStampMsec).toBe(56);
});
it("should copy interval histogram", () => {
// given
let currentTime = 42;
let clock = () => currentTime;
const recorder = new Recorder_1.default({ numberOfSignificantValueDigits: 4 }, clock);
recorder.recordValue(123);
// when
const histogram = new Int32Histogram_1.default(1, Number.MAX_SAFE_INTEGER, 3);
currentTime = 51;
recorder.getIntervalHistogramInto(histogram);
// then
expect(histogram.totalCount).toBe(1);
expect(histogram.startTimeStampMsec).toBe(42);
expect(histogram.endTimeStampMsec).toBe(51);
});
it("should reset values and timestamp", () => {
// given
let currentTime = 42;
let clock = () => currentTime;
const recorder = new Recorder_1.default({ numberOfSignificantValueDigits: 4 }, clock);
recorder.recordValue(123);
// when
currentTime = 55;
recorder.reset();
const histogram = recorder.getIntervalHistogram();
// then
expect(histogram.totalCount).toBe(0);
expect(histogram.startTimeStampMsec).toBe(55);
});
});
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