Expected Object like approach in Jasmine - Tags - JavaScript JS TDD Spec ExpectedObject Matcher addMatchers 2.0

ExpectedObjectJasmineMatcher.js

 var customMatchers = {
        toInclude: function (util, customEqualityTesters) {
            return {
                compare: function (actual, expected) {
                    if (expected === undefined) {
                        expected = '';
                    }

                    var result = {
                        message: '',
                        pass: true
                    };

                    var missingProperties = {};
                    var notEqualProperties = {};
                    for (var i in expected) {
                        if (expected.hasOwnProperty(i) && !actual.hasOwnProperty(i)) {
                            missingProperties[i] = expected[i];
                        } else {
                            if (!util.equals(actual[i], expected[i], customEqualityTesters)) {
                                notEqualProperties[i] = { expected: expected[i], actual: actual[i] };
                            }
                        };
                    }
                    if (getObjectPropertyCount(missingProperties) > 0) {
                        result.message = 'Failed asserting that object had expected properties :\r\n';
                        for (var missingProperty in missingProperties) {
                            result.message += "Expected property '" + missingProperty + "'\r\n";
                        }
                        result.pass = false;
                    }

                    if (getObjectPropertyCount(notEqualProperties) > 0) {
                        result.message = 'Failed asserting that object had expected values :\r\n';
                        for (var notEqualProperty in notEqualProperties) {
                            result.message += "Expected '" + notEqualProperty + "' to be '" + expected[notEqualProperty] + "' but was '" + actual[notEqualProperty] + "'\r\n";
                        }
                        result.pass = false;
                    }
                    return result;
                }
            };
        }
    };

    beforeEach(function () {
        jasmine.addMatchers(customMatchers);
    });