What is the best way to extract parameters from an HTTP request while performing unit tests in AngularJS?

I have created a method in my controller that looks like this:

$scope.submitForm = ( username, password ) =>{
    $http({ 
        method: 'post',
        url: 'balabala',
        params: {username, password}
    }).success( res => { /* */ } );
}

The test specifications for myController are as follows:

descript('myController', () => {
    beforeEach(module('myModule'));

    let controller, httpBackend, http, scope;

    beforeEach(inject(($controller, $httpBackend, $http, $scope) => {
        scope = $scope.$new();
        httpBackend = $httpBackend;
        http = $http;
        controller = $controller;

        httpBackend.when('POST', '/login')
            .respon({
                result: 'ok'
            });
    }));

    it('should POST login', () => {
        httpBackend.expectPOST('/login');
        const myController = controller('myController', {
            $scope: scope,
            $http: http
        });
        scope.submitForm();
        httpBackend.flush();
    });
});

What steps can I take to ensure that username and password are successfully posted?

//EDIT: How can I check the body of the POST request?

const data = { foo: "1", bar: { x: "2" } };

httpBackend.expectPOST('http://example.com').respond((method, url, data, headers, params) => {
    console.log(method, url, data, headers, params);
});

http({
    url: 'http://example.com',
    method: 'POST',
    data
});

The output will be:

'POST', 'http://example.com', 'foo=1&bar=2', Object{Accept: 'application/js on, text/plain, /', Content-Type: 'application/x-www-form-urlencoded;charset=u tf-8'}, undefined

Answer №1

To include a response value linked to a post, follow these steps:

httpBackend.expectPOST('/login').respond({success:true});

Avoid using 'when' as expectPost ensures the proper execution of the post method; it will throw an error if the method is not called. If no errors are received, it can be assumed that the post method has been invoked successfully.

$httpBackend .whenGET('/testpath/testurl/z/values?max=10&min=1').respond(function(method, url, data, headers, params) {

// params will be {
//   max: 10,
//   min: 1
// }

});

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