lix-website/themes/lix/assets/bootstrap/node_modules/jsonexport/tests/stream.js
2024-04-26 22:49:34 -06:00

94 lines
2.1 KiB
JavaScript

/* jshint evil: true */
/* jshint ignore: start */
var chai = require('chai');
var expect = chai.expect;
var jsonexport = require('../lib/index');
var os = require('os');
var stream = require('stream');
function getWriteStream(done) {
var write = new stream.Writable();
var csv = "";
write._write = function(chunk, enc, next) {
chunk = chunk.toString();
csv += chunk;
next();
};
write.on('finish', () => {
done(csv);
});
return write;
}
describe('Stream', () => {
it('simple', (done) => {
var read = new stream.Readable();
var write = getWriteStream((csv) => {
expect(csv).to.equal(`name,lastname,escaped${os.EOL}Bob,Smith${os.EOL}James,David,"I am a ""quoted"" field"`);
done();
});
read.pipe(jsonexport()).pipe(write);
read.push(JSON.stringify([{
name: 'Bob',
lastname: 'Smith'
}, {
name: 'James',
lastname: 'David',
escaped: 'I am a "quoted" field'
}]));
read.push(null);
});
it('simple with options', (done) => {
var read = new stream.Readable();
var write = getWriteStream((csv) => {
expect(csv).to.equal(`name|lastname|escaped${os.EOL}Bob|Smith${os.EOL}James|David|"I am a ""quoted"" field"`);
done();
});
read.pipe(jsonexport({
rowDelimiter: '|'
})).pipe(write);
read.push(JSON.stringify([{
name: 'Bob',
lastname: 'Smith'
}, {
name: 'James',
lastname: 'David',
escaped: 'I am a "quoted" field'
}]));
read.push(null);
});
it('complex', (done) => {
var read = new stream.Readable();
var write = getWriteStream((csv) => {
expect(csv).to.equal(`id,name,lastname,family.name,family.type${os.EOL}1,Bob,Smith,Peter,Father${os.EOL}2,James,David,Julie,Mother`);
done();
});
read.pipe(jsonexport()).pipe(write);
read.push(JSON.stringify([{
id: 1,
name: 'Bob',
lastname: 'Smith',
family: {
name: 'Peter',
type: 'Father'
}
}, {
id: 2,
name: 'James',
lastname: 'David',
family: {
name: 'Julie',
type: 'Mother'
}
}]));
read.push(null);
});
});