Chai to test JSON API output - chai

Question

How can I use Chai to deep parse JSON API output?
JSON API Output:
{
"data": {
"id": "87zc08spyq69",
"type": "data-collector",
"attributes": {
"sensors": [
{
"metadata": {
"sensor_id": 837490,
"unit": "m",
"unit_description": "meters",
"datum": "WGS84",
"offset": -0.001
},
"data": [
{
"time": "2017-12-31T23:59:59Z",
"value": "14.9",
"quality": 4
},
{
"time": "2017-12-31T22:59:59Z",
"value": "12",
"quality": 1
},
{
"time": "2017-12-31T21:59:59Z",
"value": "10",
"quality": 2
}
]
}
]
}
},
"links": {
"self": "/locations/87zc08spyq69/counter/time-series"
}
}
Working So Far:
const chai = require('chai');
const should = chai.should();
const chaiHttp = require('chai-http');
const chaiThings = require('chai-things');
chai.use(chaiHttp);
chai.use(chaiThings);
uri = '/locations/87zc08spyq69/counter/time-series';
describe('/GET', () => {
it('should get location counter in time-series', done => {
chai.request(server)
.get(uri)
.set('Content-Type', "application/vnd.api+json")
.set('Accept', "application/vnd.api+json")
.end((err, res) => {
if (err) {
console.error(err);
done(err,null);
}
should.not.exist(err);
res.status.should.eql(200);
res.type.should.eql("application/vnd.api+json");
res.body.should.have.property('data').has.property('attributes')
.has.property('sensors')
.to.be.an('array')
.should.contain.an('object');
res.body.should.have.property('links').has.property('self').to.be.eql(uri);
done();
});
});
});
I am unable to test any part of the following array:
"data": [
{
"time": "2017-12-31T23:59:59Z",
"value": "14.9",
"quality": 4
},
{
"time": "2017-12-31T22:59:59Z",
"value": "12",
"quality": 1
},
{
"time": "2017-12-31T21:59:59Z",
"value": "10",
"quality": 2
}
]
I have tried chai-things to "deep" test "data", "data/time", "data/value" but I keep getting errors.
How can I test sensors/data, sensors/data/time, sensors/data/value?
Thanks in advance for your help

Answer 1

Its pretty ugly, and there may be a better way to do it, but this worked for me
res.body.should.have.property('data').have.property('attributes')
.have.property('sensors')
.have.deep.property('[0].data').have.deep.property('[0].time').eql("2017-12-31T23:59:59Z");