mirror of https://github.com/linkerd/linkerd2.git
121 lines
5.4 KiB
JavaScript
121 lines
5.4 KiB
JavaScript
import {
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formatLatencySec,
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metricToFormatter,
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styleNum,
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toClassName
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} from './Utils.js';
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// introduce some binary floating point rounding errors, like ya do
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function float(num) {
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return num * 0.1 * 10;
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}
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describe('Utils', () => {
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describe('styleNum', () => {
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it('properly formats numbers', () => {
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let compare = (f, s) => expect(styleNum(float(f))).toEqual(s);
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compare( 1, "1" );
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compare( 2.20, "2.2" );
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compare( 3, "3" );
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compare( 4.4, "4.4" );
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compare( 5.0000001, "5" );
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compare( 7.6666667, "7.67" );
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compare( 123.456, "123.46" );
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compare( 1212.999999, "1.213k" );
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compare( 5329.333333, "5.329k" );
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compare( 16384.888, "16.385k" );
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compare( 131042, "131.042k");
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compare( 1048576, "1.049M" );
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compare( 2097152.1, "2.097M" );
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compare( 16777216, "16.777M" );
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compare( 536870912, "536.871M");
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compare( 1073741824, "1.074G" );
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compare(68719476736, "68.719G" );
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});
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it('properly formats numbers with units and no truncation', () => {
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let compare = (f, s) => expect(styleNum(float(f), " RPS", false)).toEqual(s);
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compare( 1, "1 RPS" );
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compare( 2.20, "2.2 RPS" );
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compare( 3, "3 RPS" );
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compare( 4.4, "4.4 RPS" );
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compare( 5.0000001, "5 RPS" );
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compare( 7.6666667, "7.67 RPS" );
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compare( 123.456, "123.46 RPS" );
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compare( 1212.999999, "1,213 RPS" );
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compare( 5329.333333, "5,329 RPS" );
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compare( 16384.888, "16,385 RPS" );
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compare( 131042, "131,042 RPS" );
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compare( 1048576, "1,048,576 RPS" );
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compare( 2097152.1, "2,097,152 RPS" );
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compare( 16777216, "16,777,216 RPS" );
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compare( 536870912, "536,870,912 RPS" );
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compare( 1073741824, "1,073,741,824 RPS" );
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compare(68719476736, "68,719,476,736 RPS" );
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});
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});
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describe('Metric Formatters', () => {
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it('formats undefined input', () => {
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let undefinedMetric;
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expect(metricToFormatter["REQUEST_RATE"](undefinedMetric)).toEqual('---');
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expect(metricToFormatter["SUCCESS_RATE"](undefinedMetric)).toEqual('---');
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expect(metricToFormatter["LATENCY"](undefinedMetric)).toEqual('---');
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});
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it('formats requests with rounding and unit', () => {
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expect(metricToFormatter["REQUEST_RATE"](99)).toEqual('99 RPS');
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expect(metricToFormatter["REQUEST_RATE"](999)).toEqual('999 RPS');
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expect(metricToFormatter["REQUEST_RATE"](1000)).toEqual('1k RPS');
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expect(metricToFormatter["REQUEST_RATE"](4444)).toEqual('4.444k RPS');
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expect(metricToFormatter["REQUEST_RATE"](9999)).toEqual('9.999k RPS');
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expect(metricToFormatter["REQUEST_RATE"](99999)).toEqual('99.999k RPS');
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});
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it('formats subsecond latency as ms', () => {
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expect(metricToFormatter["LATENCY"](99)).toEqual('99 ms');
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expect(metricToFormatter["LATENCY"](999)).toEqual('999 ms');
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});
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it('formats latency greater than 1s as s', () => {
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expect(metricToFormatter["LATENCY"](1000)).toEqual('1.00 s');
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expect(metricToFormatter["LATENCY"](9999)).toEqual('10.0 s');
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expect(metricToFormatter["LATENCY"](99999)).toEqual('100 s');
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});
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it('formats success rate', () => {
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expect(metricToFormatter["SUCCESS_RATE"](0.012345)).toEqual('1.23%');
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expect(metricToFormatter["SUCCESS_RATE"](0.01)).toEqual('1.00%');
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expect(metricToFormatter["SUCCESS_RATE"](0.1)).toEqual('10.00%');
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expect(metricToFormatter["SUCCESS_RATE"](0.9999)).toEqual('99.99%');
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expect(metricToFormatter["SUCCESS_RATE"](4)).toEqual('400.00%');
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});
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it('formats latencies expressed as seconds into a more appropriate display unit', () => {
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expect(formatLatencySec("0.002837700")).toEqual("3 ms");
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expect(formatLatencySec("0.000")).toEqual("0 s");
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expect(formatLatencySec("0.000000797")).toEqual("1 µs");
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expect(formatLatencySec("0.000231910")).toEqual("232 µs");
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expect(formatLatencySec("0.000988600")).toEqual("989 µs");
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expect(formatLatencySec("0.005598200")).toEqual("6 ms");
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expect(formatLatencySec("3.029409200")).toEqual("3.03 s");
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expect(formatLatencySec("34.395600")).toEqual("34.4 s");
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});
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});
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describe('toClassName', () => {
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it('converts a string to a valid class name', () => {
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expect(toClassName('')).toEqual('');
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expect(toClassName('---')).toEqual('');
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expect(toClassName('foo/bar/baz')).toEqual('foo_bar_baz');
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expect(toClassName('FOOBAR')).toEqual('foobar');
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expect(toClassName('FooBar')).toEqual('foo_bar');
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// the perhaps unexpected number of spaces here are due to the fact that
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// _.lowerCase returns space separated words
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expect(toClassName('potato123yam0squash')).toEqual('potato_123_yam_0_squash');
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expect(toClassName('test/potato-e1af21-f3f3')).toEqual('test_potato_e_1_af_21_f_3_f_3');
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});
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});
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});
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