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Split rate tests

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This commit is contained in:
Jerry Kurian 2019-09-26 09:53:15 -04:00
parent f6e3a03eb7
commit b8bd69eb01
1 changed files with 70 additions and 48 deletions
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118
tests/rate.spec.ts
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@ -4,64 +4,86 @@ import test from "ava";
import { expect } from "chai"; import { expect } from "chai";
import { rate } from "../src"; import { rate } from "../src";
test.cb("rate() sends data at desired rate", t => { test.cb("rate() sends data at a rate of 150", t => {
t.plan(9); t.plan(5);
const fastRate = 150; const targetRate = 150;
const medRate = 50; const source = new Readable({ objectMode: true });
const slowRate = 1; const expectedElements = ["a", "b", "c", "d", "e"];
const sourceFast = new Readable({ objectMode: true });
const sourceMed = new Readable({ objectMode: true });
const sourceSlow = new Readable({ objectMode: true });
const expectedElements = ["a", "b", "c"];
const start = performance.now(); const start = performance.now();
let i = 0; let i = 0;
let j = 0;
let k = 0;
sourceFast source
.pipe(rate(fastRate)) .pipe(rate(targetRate))
.on("data", (element: string[]) => { .on("data", (element: string[]) => {
const currentRate = (i / (performance.now() - start)) * 1000; const currentRate = (i / (performance.now() - start)) * 1000;
expect(element).to.deep.equal(expectedElements[i]); expect(element).to.deep.equal(expectedElements[i]);
expect(currentRate).lessThan(fastRate); expect(currentRate).lessThan(targetRate);
t.pass(); t.pass();
i++; i++;
}) })
.on("error", t.end);
sourceMed
.pipe(rate(medRate))
.on("data", (element: string[]) => {
const currentRate = (j / (performance.now() - start)) * 1000;
expect(element).to.deep.equal(expectedElements[j]);
expect(currentRate).lessThan(medRate);
t.pass();
j++;
})
.on("error", t.end);
sourceSlow
.pipe(rate(slowRate))
.on("data", (element: string[]) => {
const currentRate = (k / (performance.now() - start)) * 1000;
expect(element).to.deep.equal(expectedElements[k]);
expect(currentRate).lessThan(slowRate);
t.pass();
k++;
})
.on("error", t.end) .on("error", t.end)
.on("end", t.end); .on("end", t.end);
sourceFast.push("a"); source.push("a");
sourceFast.push("b"); source.push("b");
sourceFast.push("c"); source.push("c");
sourceFast.push(null); source.push("d");
sourceMed.push("a"); source.push("e");
sourceMed.push("b"); source.push(null);
sourceMed.push("c"); });
sourceMed.push(null);
sourceSlow.push("a"); test.cb("rate() sends data at a rate of 50", t => {
sourceSlow.push("b"); t.plan(5);
sourceSlow.push("c"); const targetRate = 50;
sourceSlow.push(null); const source = new Readable({ objectMode: true });
const expectedElements = ["a", "b", "c", "d", "e"];
const start = performance.now();
let i = 0;
source
.pipe(rate(targetRate))
.on("data", (element: string[]) => {
const currentRate = (i / (performance.now() - start)) * 1000;
expect(element).to.deep.equal(expectedElements[i]);
expect(currentRate).lessThan(targetRate);
t.pass();
i++;
})
.on("error", t.end)
.on("end", t.end);
source.push("a");
source.push("b");
source.push("c");
source.push("d");
source.push("e");
source.push(null);
});
test.cb("rate() sends data at a rate of 1", t => {
t.plan(5);
const targetRate = 1;
const source = new Readable({ objectMode: true });
const expectedElements = ["a", "b", "c", "d", "e"];
const start = performance.now();
let i = 0;
source
.pipe(rate(targetRate))
.on("data", (element: string[]) => {
const currentRate = (i / (performance.now() - start)) * 1000;
expect(element).to.deep.equal(expectedElements[i]);
expect(currentRate).lessThan(targetRate);
t.pass();
i++;
})
.on("error", t.end)
.on("end", t.end);
source.push("a");
source.push("b");
source.push("c");
source.push("d");
source.push("e");
source.push(null);
}); });