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Mocha: Make Object available in script function that will tested


Mocha: Make Object available in script function that will tested

By : outofmemory
Date : November 22 2020, 09:00 AM
I hope this helps you . I've solved this problem by restructure the parseHtml function into a class and passing die DOMParser() Object on my test.
test/parse.js
code :
import chai from 'chai';
import xmldom from 'xmldom';
import Parse from './../src/parse.es6';

const { assert } = chai;
const { DOMParser } = xmldom;

let parse;

describe('Parser', function () {
    beforeEach(function () {
        parse = new Parse(DOMParser);
    });

    it('should parse HTML', function () {
        let html = parse.html('');

        assert.ok(html);
    });
});
export default class Parse {
    constructor (domparser) {
        // This hack is needed for testing. To emulte the browsers DOMParser.
        this.domparser = !domparser ? new DOMParser() : new domparser();
    }

    html(body) {
        return this.domparser.parseFromString(
            `<html><head></head><body>${body}</body></html>`,
            'text/html'
        );
    }
}


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Can (or should) I mock methods on the object being tested other than the method being tested?

Can (or should) I mock methods on the object being tested other than the method being tested?


By : Adam Hammer
Date : March 29 2020, 07:55 AM
I hope this helps . You might have to extract an interface out of the class or make it abstract, I'm reasonbly sure that Rhino.Mocks can mock classes and interfaces. Which means you should be able to do something like this:
code :
ClassA myClass = MockRepository.PartialMock(typeof(ClassA));

Expect.Call(myClass.MethodA).Return( true );

MockRepository.ReplayAll()
Assert.AreEqual( false, myClass.MethodB() )
MockRepository.VerifyAll()
How to make expectations on a mock object created inside the tested object?

How to make expectations on a mock object created inside the tested object?


By : user3365186
Date : March 29 2020, 07:55 AM
seems to work fine I found that the best is to use a shared pointer for the member. It is unfortunate that I have to use an extra indirection just because of the unit test, but at least it works well.
code :
template <typename T, typename TFactory>
class MyClass {
...
    void someMethod() {
        std::shared_ptr<T> object = factory();
        object->doSomething();
    }
...
    TFactory factory;
};
BOOST_AUTO_TEST_CASE(testSomeMethod) {
    std::shared_ptr<T> mockT;
    MockTFactory factory(mockT);
    MyClass<MockT, MockTFactory> myClassUnderTest(factory);
    MOCK_EXPECT(mockT->doSomething).once();
    myClassUnderTest.someMethod();
}
Javascript Jasmine Testing: Prevent tested function to call function from object that was created within tested function

Javascript Jasmine Testing: Prevent tested function to call function from object that was created within tested function


By : user261690
Date : March 29 2020, 07:55 AM
Hope this helps There is no "nice" way to solve this with jasmine. I think, to take a BaseView viewObj as parameter is a nicer coding style. It will reduce the dependencies of the method. So it don't have to know the specific BaseView-class, he will simply need a viewObj that has a generate-method.
code :
showEditUser: function(..., viewObj) {
    // ...
    viewObj.generate(...);
}
var viewMock = {};
viewMock.generate = jasmine.createSpy('generate() spy');
showEditUser(..., viewMock);
Mocha can't find dependencies for a module being tested

Mocha can't find dependencies for a module being tested


By : Sean Osborne
Date : March 29 2020, 07:55 AM
I think the issue was by ths following , Looks like the problem in the xethya-random-mtw package. In the package.json of this package you have "main": "index.js" while the index.js file is not exist so cannot be resolved. main should contain some real path, e.g. "main": "dist/index.js".
Unable to specify the thrown error by the function to be tested in mocha nodejs. expect.to.throw (Error) not working

Unable to specify the thrown error by the function to be tested in mocha nodejs. expect.to.throw (Error) not working


By : king crazycheese
Date : March 29 2020, 07:55 AM
help you fix your problem Chai's throw assertion requires a function, not a function result.
To make it work, you can use something like this:
code :
it('returnTest', function() {
  expect(() => file.sendOTPParser(event1)).to.throw(Error);
});
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