benchmark-suite/dist/esm/index.js

A simple suite of benchmarking tests

import EventEmitter from 'eventemitter3';
import Memory from './MemoryTest.js';
import Operations from './OperationsTest.js';
export { default as MemoryTest } from './MemoryTest.js';
export { default as OperationsTest } from './OperationsTest.js';
export * from './types.js';
const TESTS = {
    Memory: Memory,
    Operations: Operations
};
const toJSON = (results)=>{
    const json = {};
    for(const key in results){
        json[key] = {
            name: results[key].name,
            stats: results[key].stats.toJSON()
        };
    }
    return json;
};
const isString = (x)=>Object.prototype.toString.call(x) === '[object String]';
let Suite = class Suite extends EventEmitter {
    add(name, fn) {
        this.tests.push(new this.TestClass(name, fn));
    }
    async run(options = {}) {
        if (!options.time) throw new Error('Missing time option');
        const results = {};
        for (const test of this.tests){
            const result = await test.run(options);
            for(const key in result){
                const existing = results[key];
                const entry = result[key];
                if (entry && (!existing || test.metric(existing.stats) < test.metric(entry.stats))) results[key] = entry;
            }
            this.emit('cycle', toJSON(result));
        }
        this.emit('complete', toJSON(results));
        return results;
    }
    formatStats(stats) {
        if (!this.tests.length) throw new Error('Add tests before calling formatStats');
        return this.tests[0].formatStats(stats);
    }
    constructor(name, testOrType){
        super();
        this.name = name;
        if (!testOrType) throw new Error('Suite needs a test');
        if (isString(testOrType)) {
            this.TestClass = TESTS[testOrType];
            if (!this.TestClass) throw new Error(`Suite test type not recognized ${testOrType}`);
        } else this.TestClass = testOrType;
        this.tests = [];
    }
};
export { Suite as default };