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295 lines (211 loc) 路 7.34 KB
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import { beforeEach, describe, expect, test, vi } from 'vitest';
import { Schedule } from './schedule';
describe('Schedule Class', () => {
let order: string[] = [];
const aFn = vi.fn(() => {
order.push('A');
});
const bFn = vi.fn(() => {
order.push('B');
});
const cFn = vi.fn(() => {
order.push('C');
});
const dFn = vi.fn(() => {
order.push('D');
});
const eFn = vi.fn(() => {
order.push('E');
});
const fFn = vi.fn(() => {
order.push('F');
});
beforeEach(() => {
order = [];
aFn.mockClear();
bFn.mockClear();
cFn.mockClear();
dFn.mockClear();
eFn.mockClear();
fFn.mockClear();
});
test('scheduler with a single runnable', () => {
const schedule = new Schedule();
schedule.add(aFn, { id: 'A' });
schedule.build();
schedule.run({});
expect(aFn).toBeCalledTimes(1);
expect(order).toEqual(['A']);
});
test('schedule a runnable with before', () => {
const schedule = new Schedule();
schedule.add(aFn, { id: 'A' });
schedule.add(bFn, { id: 'B', before: 'A' });
schedule.build();
schedule.run({});
expect(aFn).toBeCalledTimes(1);
expect(bFn).toBeCalledTimes(1);
expect(order).toEqual(['B', 'A']);
});
test('schedule a runnable with after', () => {
const schedule = new Schedule();
schedule.add(aFn, { id: 'A' });
schedule.add(bFn, { id: 'B', after: 'A' });
schedule.build();
schedule.run({});
expect(aFn).toBeCalledTimes(1);
expect(bFn).toBeCalledTimes(1);
expect(order).toEqual(['A', 'B']);
});
test('schedule a runnable without an id', () => {
const schedule = new Schedule();
schedule.add(aFn);
schedule.add(bFn, {
before: aFn,
});
schedule.build();
schedule.run({});
expect(aFn).toBeCalledTimes(1);
expect(bFn).toBeCalledTimes(1);
expect(order).toEqual(['B', 'A']);
});
test('schedule a runnable after multiple runnables', () => {
const schedule = new Schedule();
schedule.add(aFn, { id: 'A' });
schedule.add(bFn, { id: 'B' });
schedule.add(cFn, { id: 'C', after: ['A', 'B'] });
schedule.add(dFn, { id: 'D', after: 'C' });
schedule.build();
schedule.run({});
expect(aFn).toBeCalledTimes(1);
expect(bFn).toBeCalledTimes(1);
expect(cFn).toBeCalledTimes(1);
expect(dFn).toBeCalledTimes(1);
expect(order).toEqual(['A', 'B', 'C', 'D']);
});
test('schedule a runnable with tag', () => {
const group1 = Symbol();
const schedule = new Schedule();
schedule.createTag(group1);
schedule.add(aFn, { id: 'A', tag: group1 });
schedule.add(bFn, { id: 'B', after: 'A', tag: group1 });
schedule.build();
schedule.run({});
expect(aFn).toBeCalledTimes(1);
expect(bFn).toBeCalledTimes(1);
expect(order).toEqual(['A', 'B']);
});
test('schedule multiple runnables at once with a single tag', () => {
const group1 = Symbol();
const schedule = new Schedule();
schedule.createTag(group1);
schedule.add([aFn, bFn, cFn], {
tag: group1,
});
schedule.build();
schedule.run({});
expect(aFn).toBeCalledTimes(1);
expect(bFn).toBeCalledTimes(1);
expect(cFn).toBeCalledTimes(1);
expect(order).toEqual(['A', 'B', 'C']);
});
test('schedule a runnable before and after a tag', () => {
const group1 = Symbol();
const schedule = new Schedule();
schedule.createTag(group1);
schedule.add(aFn, { id: 'A', tag: group1 });
schedule.add(bFn, { id: 'B', after: 'A', tag: group1 });
schedule.add(cFn, { id: 'C', before: group1 });
schedule.add(dFn, { id: 'D', after: group1 });
schedule.build();
schedule.run({});
expect(aFn).toBeCalledTimes(1);
expect(bFn).toBeCalledTimes(1);
expect(cFn).toBeCalledTimes(1);
expect(dFn).toBeCalledTimes(1);
expect(order).toEqual(['C', 'A', 'B', 'D']);
});
test('schedule a runnable into an existing tag', () => {
const group1 = Symbol();
const schedule = new Schedule();
schedule.createTag(group1);
schedule.add(aFn, { id: 'A', tag: group1 });
schedule.add(bFn, { id: 'B', after: 'A', tag: group1 });
schedule.add(cFn, { id: 'C', before: group1 });
schedule.add(dFn, { id: 'D', after: group1 });
schedule.add(eFn, { id: 'E', tag: group1 });
schedule.build();
schedule.run({});
expect(aFn).toBeCalledTimes(1);
expect(bFn).toBeCalledTimes(1);
expect(cFn).toBeCalledTimes(1);
expect(dFn).toBeCalledTimes(1);
expect(eFn).toBeCalledTimes(1);
expect(order).toEqual(['C', 'A', 'E', 'B', 'D']);
});
test('schedule a tag before or after another tag', () => {
const group1 = Symbol();
const group2 = Symbol();
const group3 = Symbol();
const schedule = new Schedule();
schedule.createTag(group1);
schedule.createTag(group2, { before: group1 });
schedule.createTag(group3, { after: group1 });
schedule.add(aFn, { tag: group1, id: 'A' });
schedule.add(bFn, { tag: group2, id: 'B' });
schedule.add(cFn, { tag: group3, id: 'C' });
schedule.build();
schedule.run({});
expect(aFn).toBeCalledTimes(1);
expect(bFn).toBeCalledTimes(1);
expect(cFn).toBeCalledTimes(1);
expect(order).toEqual(['B', 'A', 'C']);
});
test('scheduling async runnables', async () => {
const schedule = new Schedule();
const aFn = async () => {
order.push('A');
};
const bFn = async () => {
// Don't resolve until the next tick
await new Promise<void>((resolve) => {
setTimeout(() => {
order.push('B');
resolve();
}, 100);
});
};
const cFn = () => {
order.push('C');
};
schedule.add(aFn, { id: 'A' });
schedule.add(bFn, { after: 'A', id: 'B' });
schedule.add(cFn, { after: 'B', id: 'C' });
schedule.build();
await schedule.run({});
expect(order).toEqual(['A', 'B', 'C']);
});
test('remove runnables from the schedule', () => {
const schedule = new Schedule();
schedule.add(aFn, { id: 'A' });
schedule.add(bFn, { id: 'B' });
schedule.add(cFn, { id: 'C' });
schedule.build();
schedule.run({});
expect(order).toEqual(['A', 'B', 'C']);
schedule.remove(bFn);
schedule.build();
order = [];
schedule.run({});
expect(order).toEqual(['A', 'C']);
});
test('can check if a runnable is in the schedule', () => {
const schedule = new Schedule();
schedule.add(aFn, { id: 'A' });
schedule.add(bFn, { id: 'B' });
schedule.add(cFn, { id: 'C' });
schedule.build();
expect(schedule.has(aFn)).toBe(true);
expect(schedule.has(dFn)).toBe(false);
});
});