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			115 lines
		
	
	
		
			3.4 KiB
		
	
	
	
		
			TypeScript
		
	
			
		
		
	
	
			115 lines
		
	
	
		
			3.4 KiB
		
	
	
	
		
			TypeScript
		
	
| // tslint:disable: no-implicit-dependencies max-func-body-length no-unused-expression
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| 
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| import chai from 'chai';
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| import { v4 as uuid } from 'uuid';
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| import { JobQueue } from '../../../../session/utils/JobQueue';
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| import { TestUtils } from '../../../test-utils';
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| 
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| import chaiAsPromised from 'chai-as-promised';
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| chai.use(chaiAsPromised as any);
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| 
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| const { assert } = chai;
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| 
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| describe('JobQueue', () => {
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|   describe('has', () => {
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|     it('should return the correct value', async () => {
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|       const queue = new JobQueue();
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|       const id = 'jobId';
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| 
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|       assert.isFalse(queue.has(id));
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|       const promise = queue.addWithId(id, async () => TestUtils.timeout(30));
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|       assert.isTrue(queue.has(id));
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|       await promise;
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|       assert.isFalse(queue.has(id));
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|     });
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|   });
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| 
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|   describe('addWithId', () => {
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|     it('should run the jobs concurrently', async () => {
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|       const input = [
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|         [10, 10],
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|         [20, 8],
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|         [30, 2],
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|       ];
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|       const queue = new JobQueue();
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|       const mapper = async ([value, ms]: Array<number>): Promise<number> =>
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|         queue.addWithId(uuid(), async () => {
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|           await TestUtils.timeout(ms);
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| 
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|           return value;
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|         });
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| 
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|       const start = Date.now();
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|       await assert.eventually.deepEqual(Promise.all(input.map(mapper)), [10, 20, 30]);
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|       const timeTaken = Date.now() - start;
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|       assert.isAtLeast(timeTaken, 20, 'Queue should take at least 100ms to run.');
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|     });
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| 
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|     it('should return the result of the job', async () => {
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|       const queue = new JobQueue();
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|       const success = queue.addWithId(uuid(), async () => {
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|         await TestUtils.timeout(10);
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| 
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|         return 'success';
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|       });
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|       const failure = queue.addWithId(uuid(), async () => {
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|         await TestUtils.timeout(10);
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|         throw new Error('failed');
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|       });
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| 
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|       await assert.eventually.equal(success, 'success');
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|       await assert.isRejected(failure, /failed/);
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|     });
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| 
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|     it('should handle sync and async tasks', async () => {
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|       const queue = new JobQueue();
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|       const first = queue.addWithId(uuid(), () => 'first');
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|       const second = queue.addWithId(uuid(), async () => {
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|         await TestUtils.timeout(10);
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| 
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|         return 'second';
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|       });
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|       const third = queue.addWithId(uuid(), () => 'third');
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| 
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|       await assert.eventually.deepEqual(Promise.all([first, second, third]), [
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|         'first',
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|         'second',
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|         'third',
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|       ]);
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|     });
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| 
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|     it('should return the previous job if same id was passed', async () => {
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|       const queue = new JobQueue();
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|       const id = uuid();
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|       const job = async () => {
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|         await TestUtils.timeout(10);
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| 
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|         return 'job1';
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|       };
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| 
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|       const promise = queue.addWithId(id, job);
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|       const otherPromise = queue.addWithId(id, () => 'job2');
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|       await assert.eventually.equal(promise, 'job1');
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|       await assert.eventually.equal(otherPromise, 'job1');
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|     });
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| 
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|     it('should remove completed jobs', async () => {
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|       const queue = new JobQueue();
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|       const id = uuid();
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| 
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|       const successfullJob = queue.addWithId(id, async () => TestUtils.timeout(10));
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|       assert.isTrue(queue.has(id));
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|       await successfullJob;
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|       assert.isFalse(queue.has(id));
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| 
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|       const failJob = queue.addWithId(id, async () => {
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|         await TestUtils.timeout(10);
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|         throw new Error('failed');
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|       });
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|       assert.isTrue(queue.has(id));
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|       await assert.isRejected(failJob, /failed/);
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|       assert.isFalse(queue.has(id));
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|     });
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|   });
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| });
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