[6a3a178] | 1 | "use strict";
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| 2 | Object.defineProperty(exports, "__esModule", { value: true });
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| 3 | const Recorder_1 = require("./Recorder");
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| 4 | const Int32Histogram_1 = require("./Int32Histogram");
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| 5 | const PackedHistogram_1 = require("./PackedHistogram");
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| 6 | const wasm_1 = require("./wasm");
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| 7 | describe("Recorder", () => {
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| 8 | beforeAll(wasm_1.initWebAssembly);
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| 9 | it("should record value", () => {
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| 10 | // given
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| 11 | const recorder = new Recorder_1.default();
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| 12 | // when
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| 13 | recorder.recordValue(123);
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| 14 | // then
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| 15 | const histogram = recorder.getIntervalHistogram();
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| 16 | expect(histogram.totalCount).toBe(1);
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| 17 | });
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| 18 | it("should record value in a packed histogram", () => {
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| 19 | // given
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| 20 | const recorder = new Recorder_1.default({
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| 21 | numberOfSignificantValueDigits: 5,
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| 22 | bitBucketSize: "packed",
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| 23 | });
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| 24 | // when
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| 25 | recorder.recordValue(123);
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| 26 | // then
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| 27 | expect(recorder.getIntervalHistogram() instanceof PackedHistogram_1.default).toBe(true);
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| 28 | expect(recorder.getIntervalHistogram() instanceof PackedHistogram_1.default).toBe(true);
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| 29 | });
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| 30 | it("should record value in a WASM histogram", () => {
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| 31 | // given
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| 32 | const recorder = new Recorder_1.default({
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| 33 | numberOfSignificantValueDigits: 5,
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| 34 | bitBucketSize: "packed",
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| 35 | useWebAssembly: true,
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| 36 | });
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| 37 | try {
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| 38 | // when
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| 39 | recorder.recordValue(123);
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| 40 | // then
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| 41 | expect(recorder.getIntervalHistogram() instanceof wasm_1.WasmHistogram).toBe(true);
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| 42 | }
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| 43 | finally {
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| 44 | recorder.destroy();
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| 45 | }
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| 46 | });
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| 47 | it("should record value with count", () => {
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| 48 | // given
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| 49 | const recorder = new Recorder_1.default();
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| 50 | // when
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| 51 | recorder.recordValueWithCount(123, 3);
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| 52 | // then
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| 53 | const histogram = recorder.getIntervalHistogram();
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| 54 | expect(histogram.totalCount).toBe(3);
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| 55 | });
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| 56 | it("should record value with expected interval", () => {
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| 57 | // given
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| 58 | const recorder = new Recorder_1.default();
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| 59 | // when
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| 60 | recorder.recordValueWithExpectedInterval(223, 100);
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| 61 | // then
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| 62 | const histogram = recorder.getIntervalHistogram();
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| 63 | expect(histogram.totalCount).toBe(2);
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| 64 | });
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| 65 | it("should record value in a packed histogram", () => {
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| 66 | // given
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| 67 | const recorder = new Recorder_1.default({ bitBucketSize: "packed" });
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| 68 | recorder.recordValue(42);
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| 69 | // when
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| 70 | const histogram = recorder.getIntervalHistogram();
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| 71 | // then
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| 72 | expect(histogram instanceof PackedHistogram_1.default).toBe(true);
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| 73 | });
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| 74 | it("should record value only on one interval histogram", () => {
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| 75 | // given
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| 76 | const recorder = new Recorder_1.default();
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| 77 | // when
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| 78 | recorder.recordValue(123);
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| 79 | const firstHistogram = recorder.getIntervalHistogram();
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| 80 | // then
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| 81 | const secondHistogram = recorder.getIntervalHistogram();
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| 82 | expect(secondHistogram.totalCount).toBe(0);
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| 83 | });
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| 84 | it("should not record value on returned interval histogram", () => {
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| 85 | // given
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| 86 | const recorder = new Recorder_1.default();
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| 87 | const firstHistogram = recorder.getIntervalHistogram();
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| 88 | const secondHistogram = recorder.getIntervalHistogram();
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| 89 | // when
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| 90 | firstHistogram.recordValue(42); // should have 0 impact on recorder
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| 91 | const thirdHistogram = recorder.getIntervalHistogram();
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| 92 | // then
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| 93 | expect(thirdHistogram.totalCount).toBe(0);
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| 94 | });
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| 95 | it("should return interval histograms with expected significant digits", () => {
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| 96 | // given
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| 97 | const recorder = new Recorder_1.default({ numberOfSignificantValueDigits: 4 });
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| 98 | const firstHistogram = recorder.getIntervalHistogram();
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| 99 | const secondHistogram = recorder.getIntervalHistogram();
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| 100 | // when
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| 101 | const thirdHistogram = recorder.getIntervalHistogram();
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| 102 | // then
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| 103 | expect(thirdHistogram.numberOfSignificantValueDigits).toBe(4);
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| 104 | });
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| 105 | it("should return recycled histograms when asking for interval histogram", () => {
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| 106 | // given
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| 107 | const recorder = new Recorder_1.default();
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| 108 | const firstHistogram = recorder.getIntervalHistogram();
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| 109 | // when
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| 110 | const secondHistogram = recorder.getIntervalHistogram(firstHistogram);
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| 111 | const thirdHistogram = recorder.getIntervalHistogram();
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| 112 | // then
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| 113 | expect(thirdHistogram === firstHistogram).toBe(true);
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| 114 | });
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| 115 | it("should throw an error when trying to recycle an histogram not created by the recorder", () => {
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| 116 | // given
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| 117 | const recorder = new Recorder_1.default();
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| 118 | const somehistogram = new Int32Histogram_1.default(1, 2, 3);
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| 119 | // when & then
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| 120 | expect(() => recorder.getIntervalHistogram(somehistogram)).toThrowError();
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| 121 | });
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| 122 | it("should reset histogram when recycling", () => {
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| 123 | // given
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| 124 | const recorder = new Recorder_1.default();
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| 125 | recorder.recordValue(42);
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| 126 | const firstHistogram = recorder.getIntervalHistogram();
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| 127 | // when
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| 128 | const secondHistogram = recorder.getIntervalHistogram(firstHistogram);
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| 129 | const thirdHistogram = recorder.getIntervalHistogram();
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| 130 | // then
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| 131 | expect(thirdHistogram.totalCount).toBe(0);
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| 132 | });
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| 133 | it("should set timestamps on first interval histogram", () => {
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| 134 | // given
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| 135 | let currentTime = 42;
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| 136 | let clock = () => currentTime;
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| 137 | const recorder = new Recorder_1.default({}, clock);
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| 138 | // when
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| 139 | currentTime = 123;
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| 140 | const histogram = recorder.getIntervalHistogram();
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| 141 | // then
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| 142 | expect(histogram.startTimeStampMsec).toBe(42);
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| 143 | expect(histogram.endTimeStampMsec).toBe(123);
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| 144 | });
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| 145 | it("should set timestamps on any interval histogram", () => {
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| 146 | // given
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| 147 | let currentTime = 42;
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| 148 | let clock = () => currentTime;
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| 149 | const recorder = new Recorder_1.default({}, clock);
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| 150 | currentTime = 51;
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| 151 | const firstHistogram = recorder.getIntervalHistogram();
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| 152 | // when
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| 153 | currentTime = 56;
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| 154 | const secondHistogram = recorder.getIntervalHistogram();
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| 155 | // then
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| 156 | expect(secondHistogram.startTimeStampMsec).toBe(51);
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| 157 | expect(secondHistogram.endTimeStampMsec).toBe(56);
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| 158 | });
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| 159 | it("should copy interval histogram", () => {
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| 160 | // given
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| 161 | let currentTime = 42;
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| 162 | let clock = () => currentTime;
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| 163 | const recorder = new Recorder_1.default({ numberOfSignificantValueDigits: 4 }, clock);
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| 164 | recorder.recordValue(123);
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| 165 | // when
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| 166 | const histogram = new Int32Histogram_1.default(1, Number.MAX_SAFE_INTEGER, 3);
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| 167 | currentTime = 51;
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| 168 | recorder.getIntervalHistogramInto(histogram);
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| 169 | // then
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| 170 | expect(histogram.totalCount).toBe(1);
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| 171 | expect(histogram.startTimeStampMsec).toBe(42);
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| 172 | expect(histogram.endTimeStampMsec).toBe(51);
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| 173 | });
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| 174 | it("should reset values and timestamp", () => {
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| 175 | // given
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| 176 | let currentTime = 42;
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| 177 | let clock = () => currentTime;
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| 178 | const recorder = new Recorder_1.default({ numberOfSignificantValueDigits: 4 }, clock);
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| 179 | recorder.recordValue(123);
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| 180 | // when
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| 181 | currentTime = 55;
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| 182 | recorder.reset();
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| 183 | const histogram = recorder.getIntervalHistogram();
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| 184 | // then
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| 185 | expect(histogram.totalCount).toBe(0);
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| 186 | expect(histogram.startTimeStampMsec).toBe(55);
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| 187 | });
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| 188 | });
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| 189 | //# sourceMappingURL=Recorder.spec.js.map |
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