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bitwarden-estensione-browser/libs/common/spec/misc/sequentialize.spec.ts
2022-06-14 17:10:53 +02:00

128 lines
3.5 KiB
TypeScript

import { sequentialize } from "@bitwarden/common/misc/sequentialize";
describe("sequentialize decorator", () => {
it("should call the function once", async () => {
const foo = new Foo();
const promises = [];
for (let i = 0; i < 10; i++) {
promises.push(foo.bar(1));
}
await Promise.all(promises);
expect(foo.calls).toBe(1);
});
it("should call the function once for each instance of the object", async () => {
const foo = new Foo();
const foo2 = new Foo();
const promises = [];
for (let i = 0; i < 10; i++) {
promises.push(foo.bar(1));
promises.push(foo2.bar(1));
}
await Promise.all(promises);
expect(foo.calls).toBe(1);
expect(foo2.calls).toBe(1);
});
it("should call the function once with key function", async () => {
const foo = new Foo();
const promises = [];
for (let i = 0; i < 10; i++) {
promises.push(foo.baz(1));
}
await Promise.all(promises);
expect(foo.calls).toBe(1);
});
it("should call the function again when already resolved", async () => {
const foo = new Foo();
await foo.bar(1);
expect(foo.calls).toBe(1);
await foo.bar(1);
expect(foo.calls).toBe(2);
});
it("should call the function again when already resolved with a key function", async () => {
const foo = new Foo();
await foo.baz(1);
expect(foo.calls).toBe(1);
await foo.baz(1);
expect(foo.calls).toBe(2);
});
it("should call the function for each argument", async () => {
const foo = new Foo();
await Promise.all([foo.bar(1), foo.bar(1), foo.bar(2), foo.bar(2), foo.bar(3), foo.bar(3)]);
expect(foo.calls).toBe(3);
});
it("should call the function for each argument with key function", async () => {
const foo = new Foo();
await Promise.all([foo.baz(1), foo.baz(1), foo.baz(2), foo.baz(2), foo.baz(3), foo.baz(3)]);
expect(foo.calls).toBe(3);
});
it("should return correct result for each call", async () => {
const foo = new Foo();
const allRes: number[] = [];
await Promise.all([
foo.bar(1).then((res) => allRes.push(res)),
foo.bar(1).then((res) => allRes.push(res)),
foo.bar(2).then((res) => allRes.push(res)),
foo.bar(2).then((res) => allRes.push(res)),
foo.bar(3).then((res) => allRes.push(res)),
foo.bar(3).then((res) => allRes.push(res)),
]);
expect(foo.calls).toBe(3);
expect(allRes.length).toBe(6);
allRes.sort();
expect(allRes).toEqual([2, 2, 4, 4, 6, 6]);
});
it("should return correct result for each call with key function", async () => {
const foo = new Foo();
const allRes: number[] = [];
await Promise.all([
foo.baz(1).then((res) => allRes.push(res)),
foo.baz(1).then((res) => allRes.push(res)),
foo.baz(2).then((res) => allRes.push(res)),
foo.baz(2).then((res) => allRes.push(res)),
foo.baz(3).then((res) => allRes.push(res)),
foo.baz(3).then((res) => allRes.push(res)),
]);
expect(foo.calls).toBe(3);
expect(allRes.length).toBe(6);
allRes.sort();
expect(allRes).toEqual([3, 3, 6, 6, 9, 9]);
});
});
class Foo {
calls = 0;
@sequentialize((args) => "bar" + args[0])
bar(a: number): Promise<number> {
this.calls++;
return new Promise((res) => {
setTimeout(() => {
res(a * 2);
}, Math.random() * 100);
});
}
@sequentialize((args) => "baz" + args[0])
baz(a: number): Promise<number> {
this.calls++;
return new Promise((res) => {
setTimeout(() => {
res(a * 3);
}, Math.random() * 100);
});
}
}