Chai offers a method called include. I am looking to verify if one object includes another object. Take this example:
var source = {
name: "John",
additionalObj: {
type: "Sample"
}
}
With Chai, I want to confirm that this object contains the following (which it does)
var comparison = {
additionalObj: {
type: "Sample"
}
}
Attempting the following code doesn't seem to yield results:
source.should.include(comparison)
Hey there, I just released a new package called chai-subset. You can find it here: https://www.npmjs.org/package/chai-subset. Give it a try, it might be useful for you!
const chai = require('chai');
const chaiSubset = require('chai-subset');
chai.use(chaiSubset);
const obj = {
a: 'b',
c: 'd',
e: {
foo: 'bar',
baz: {
qux: 'quux'
}
}
};
expect(obj).to.containSubset({
e: {
foo: 'bar',
baz: {
qux: 'quux'
}
}
});
The include and contain assertions have versatile uses, serving as property based language chains or methods to verify the presence of an object in an array or a substring in a string. When employed as language chains, they adjust the contain flag for the keys assertion. [emphasis added]
If you use include on an object (not an array or a string), it simply toggles the contain flag for the keys assertion. Based on your example, it might be more appropriate to test for deep equality, perhaps by checking for the key first.
origins.should.include.keys("otherObj");
origins.otherObj.should.deep.equal(match.otherObj);
Upon further review of other examples, this alternative approach may suit your needs better:
origins.should.have.deep.property("otherObj", match.otherObj)
Chai version 4.2.0 introduces a new feature called deep include
Here are some examples from the Chai documentation:
// Deeply check if an array includes `{a: 1}`
expect([{a: 1}]).to.deep.include({a: 1});
expect([{a: 1}]).to.not.include({a: 1});
// Deeply check if an object includes `x: {a: 1}`
expect({x: {a: 1}}).to.deep.include({x: {a: 1}});
expect({x: {a: 1}}).to.not.include({x: {a: 1}});
One way to check the level of a subobject is by using this code:
expect(origin.otherObj).to.include(match.otherObj);
For more information, visit this link
If you're using Chai version 1.5.0, be sure to check out the useful method
includeDeepMembers
Visit this link for more information!
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