how to do an “or” in chai should

问题

How do I do an or test with chai.should?

e.g. something like

total.should.equal(4).or.equal(5)

total.should.equal.any(4,5)

What's the right syntax? I couldn't find anything in the documentation

回答1:

Viewing the Chai expect / should documentation, there are several ways to do this test.

Note that you can chain using "and" but apparently not "or" - wish they had this functionality.

Check whether an object passes a truth test:

.satisfy(method)

@param{ Function }matcher
@param{ String }message_optional_

Asserts that the target passes a given truth test.

Example:

expect(1).to.satisfy(function(num) { return num > 0; });

In your case, to test an "or" condition:

yourVariable.should.satisfy(function (num) {
    if ((num === 4) || (num === 5)) {
        return true;
    } else {
        return false;
    }
});

Check whether a number is within a range:

.within(start, finish)

@param{ Number }startlowerbound inclusive
@param{ Number }finishupperbound inclusive
@param{ String }message_optional_

Asserts that the target is within a range.

Example:

expect(7).to.be.within(5,10);

回答2:

Asserts that the target is a member of the given array list. However, it’s often best to assert that the target is equal to its expected value.

expect(1).to.be.oneOf([1, 2, 3]);
expect(1).to.not.be.oneOf([2, 3, 4]);

https://www.chaijs.com/api/bdd/#method_oneof

回答3:

I have a similar problem to write tests to postman. I solved using the following script:

// delete all products, need token with admin role to complete this operation
pm.test("response is ok and should delete all products", function() {
pm.expect(pm.response.code).to.satisfy(function (status) {
       if ((status === 204) || (status === 404)) {
           return true;
       } else {
           return false;
       }
    });
});

回答4:

Because chai assertions throw error you could use try/catch construction:

try {
    total.should.equal(4)
} catch (e) {
    total.should.equal(5)
}

example of more difficult case:

try {
    expect(result).to.have.nested.property('data.' + options.path, null)
} catch (e) {
    expect(result).to.have.property('data', null)
}

来源：https://stackoverflow.com/questions/32387293/how-to-do-an-or-in-chai-should

标签

chai