In your example, you're comparing object { tPrice: tPrice } with { t_price: '359701' }, that's why it's always going to fail because the keys are different (apart from the fact that the tPrice variable value is undefined).
If you're already storing the actual value in a variable, there's no need to make an object out of it and use deepEqual. You can do:
const tPrice = response.body.data.calculations.t_costs[0].comparison.t_price
assert.equal(tPrice, '359701');
As to your other question, if I understand it correctly, your response looks like:
{
data: {
calculations: {
t_costs: [
{ comparison: { t_price: "1111" } },
{ comparison: { t_price: "2222" } },
{ comparison: { t_price: "3333" } },
{ comparison: { t_price: "4444" } },
/* ... */
]
}
}
}
And you want to assert just a few of those t_costs objects.
For that it's best to use a chai plugin such as debitoor/chai-subset.
To set it up:
npm install --save-dev chai-subset
In your cypress/support/index.js:
const chai = require('chai');
const chaiSubset = require('chai-subset');
chai.use(chaiSubset);
In your spec:
/* ... */
expect( response.body.data.calculations.t_costs )
.to.containSubset([
{ comparison: { t_price: "1111" } },
{ comparison: { t_price: "3333" } }
]);
This worked great. Thank you so much for your help. It's so much simpler than I was making it haha.
Keep in mind,
chai-subsetworks but error reporting is terrible. You need to manually analyze why it's failing. There is no explicit error of where field doesn't match.