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test.js
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test.js
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/* eslint-disable import/no-commonjs, class-methods-use-this */
const os = require('os');
const Benchmark = require('benchmark');
const React = require('react');
const ReactDomServer = require('react-dom/server');
const ReactCssModulesComponent = require('react-css-modules');
const getClassName = require('../dist/browser/getClassName').default;
const minSamples = 100;
// eslint-disable-next-line no-process-env
if (process.env.NODE_ENV !== 'production') {
throw new Error('Unexpected NODE_ENV.');
}
/**
* @see https://github.com/petkaantonov/bluebird/blob/4ec337233c1fa7bb4eb90473222014f16d074e58/benchmark/performance.js#L11
*/
const printPlatform = () => {
const v8 = process.versions.v8;
const node = process.versions.node;
// eslint-disable-next-line no-process-env
const plat = os.type() + ' ' + os.release() + ' ' + os.arch() + '\nNode.JS ' + node + '\nV8 ' + v8 + '\nNODE_ENV=' + process.env.NODE_ENV;
let cpus = os.cpus()
.map((cpu) => {
return cpu.model;
})
.reduce((o, model) => {
if (!o[model]) {
o[model] = 0;
}
o[model]++;
return o;
}, {});
cpus = Object
.keys(cpus)
.map((key) => {
return key + ' \u00d7 ' + cpus[key];
})
.join('\n');
// eslint-disable-next-line no-console
console.log('\nPlatform info:\n' + plat + '\n' + cpus + '\n');
};
const suite = new Benchmark.Suite();
suite.add('Using `className` (base)', () => {
const SubjectComponent = React.createClass({
render () {
return React.createElement(
'div',
{
className: 'foo'
},
React.createElement('div', {
className: 'bar'
}),
React.createElement('div', {
className: 'bar'
}),
React.createElement('div', {
className: 'bar'
})
);
}
});
ReactDomServer.renderToStaticMarkup(React.createElement(SubjectComponent));
}, {
minSamples
});
suite.add('`react-css-modules`', () => {
let SubjectComponent;
SubjectComponent = React.createClass({
render () {
return React.createElement(
'div',
{
styleName: 'foo'
},
React.createElement('div', {
styleName: 'bar'
}),
React.createElement('div', {
styleName: 'bar'
}),
React.createElement('div', {
styleName: 'bar'
})
);
}
});
SubjectComponent = ReactCssModulesComponent(SubjectComponent, {
bar: 'b',
foo: 'a'
});
ReactDomServer.renderToStaticMarkup(React.createElement(SubjectComponent));
}, {
minSamples
});
suite.add('`babel-plugin-react-css-modules` (runtime, anonymous)', () => {
const styleModuleImportMap = {
anonymous: {
bar: 'b',
foo: 'a'
}
};
const SubjectComponent = React.createClass({
render () {
return React.createElement(
'div',
{
className: getClassName('foo', styleModuleImportMap)
},
React.createElement('div', {
className: getClassName('bar', styleModuleImportMap)
}),
React.createElement('div', {
className: getClassName('bar', styleModuleImportMap)
}),
React.createElement('div', {
className: getClassName('bar', styleModuleImportMap)
})
);
}
});
ReactDomServer.renderToStaticMarkup(React.createElement(SubjectComponent));
}, {
minSamples
});
suite.add('`babel-plugin-react-css-modules` (runtime, named)', () => {
const styleModuleImportMap = {
qux: {
bar: 'b',
foo: 'a'
}
};
const SubjectComponent = React.createClass({
render () {
return React.createElement(
'div',
{
className: getClassName('qux.foo', styleModuleImportMap)
},
React.createElement('div', {
className: getClassName('qux.bar', styleModuleImportMap)
}),
React.createElement('div', {
className: getClassName('qux.bar', styleModuleImportMap)
}),
React.createElement('div', {
className: getClassName('qux.bar', styleModuleImportMap)
})
);
}
});
ReactDomServer.renderToStaticMarkup(React.createElement(SubjectComponent));
}, {
minSamples
});
const results = [];
suite
.on('error', (error) => {
// eslint-disable-next-line no-console
console.log('error', error);
throw new Error('An unexpected error has occurred.');
})
.on('cycle', (event) => {
results.push(event.target);
})
.on('complete', () => {
const table = [];
table.push('|Name|Operations per second (relative margin of error)|Sample size|Difference from the base benchmark|');
table.push('|---|---|---|---|');
let base;
for (const benchmark of results) {
if (!base) {
base = benchmark;
}
table.push('|' + benchmark.name + '|' + Math.floor(benchmark.hz) + ' (±' + benchmark.stats.rme.toFixed(2) + '%)|' + benchmark.count + '|-' + Math.floor(((base.hz - benchmark.hz) / benchmark.hz) * 100) + '%|');
}
// eslint-disable-next-line no-console
console.log(table.join('\n'));
printPlatform();
});
suite.run();