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111 lines
2.6 KiB
TypeScript
111 lines
2.6 KiB
TypeScript
import { sequentialize } from "@bitwarden/common/misc/sequentialize";
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import { throttle } from "@bitwarden/common/misc/throttle";
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describe("throttle decorator", () => {
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it("should call the function once at a time", async () => {
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const foo = new Foo();
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const promises = [];
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for (let i = 0; i < 10; i++) {
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promises.push(foo.bar(1));
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}
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await Promise.all(promises);
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expect(foo.calls).toBe(10);
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});
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it("should call the function once at a time for each object", async () => {
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const foo = new Foo();
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const foo2 = new Foo();
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const promises = [];
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for (let i = 0; i < 10; i++) {
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promises.push(foo.bar(1));
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promises.push(foo2.bar(1));
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}
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await Promise.all(promises);
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expect(foo.calls).toBe(10);
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expect(foo2.calls).toBe(10);
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});
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it("should call the function limit at a time", async () => {
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const foo = new Foo();
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const promises = [];
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for (let i = 0; i < 10; i++) {
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promises.push(foo.baz(1));
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}
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await Promise.all(promises);
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expect(foo.calls).toBe(10);
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});
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it("should call the function limit at a time for each object", async () => {
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const foo = new Foo();
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const foo2 = new Foo();
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const promises = [];
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for (let i = 0; i < 10; i++) {
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promises.push(foo.baz(1));
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promises.push(foo2.baz(1));
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}
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await Promise.all(promises);
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expect(foo.calls).toBe(10);
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expect(foo2.calls).toBe(10);
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});
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it("should work together with sequentialize", async () => {
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const foo = new Foo();
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const promises = [];
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for (let i = 0; i < 10; i++) {
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promises.push(foo.qux(Math.floor(i / 2) * 2));
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}
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await Promise.all(promises);
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expect(foo.calls).toBe(5);
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});
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});
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class Foo {
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calls = 0;
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inflight = 0;
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@throttle(1, () => "bar")
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bar(a: number) {
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this.calls++;
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this.inflight++;
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return new Promise((res) => {
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setTimeout(() => {
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expect(this.inflight).toBe(1);
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this.inflight--;
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res(a * 2);
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}, Math.random() * 10);
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});
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}
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@throttle(5, () => "baz")
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baz(a: number) {
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this.calls++;
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this.inflight++;
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return new Promise((res) => {
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setTimeout(() => {
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expect(this.inflight).toBeLessThanOrEqual(5);
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this.inflight--;
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res(a * 3);
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}, Math.random() * 10);
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});
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}
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@sequentialize((args) => "qux" + args[0])
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@throttle(1, () => "qux")
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qux(a: number) {
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this.calls++;
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this.inflight++;
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return new Promise((res) => {
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setTimeout(() => {
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expect(this.inflight).toBe(1);
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this.inflight--;
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res(a * 3);
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}, Math.random() * 10);
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});
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}
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}
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