openmct/platform/commonUI/general/test/directives/MCTTreeSpec.js

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 * Administration. All rights reserved.
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 * Open MCT Web is licensed under the Apache License, Version 2.0 (the
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define([
    '../../src/directives/MCTTree'
], function (MCTTree) {
    describe("The mct-tree directive", function () {
        var mockParse,
            mockGestureService,
            mockExpr,
            mctTree;

        beforeEach(function () {
            mockGestureService = jasmine.createSpyObj(
                'gestureService',
                ['attachGestures']
            );
            mockParse = jasmine.createSpy('$parse');
            mockExpr = jasmine.createSpy('expr');
            mockExpr.assign = jasmine.createSpy('assign');
            mockParse.andReturn(mockExpr);

            mctTree = new MCTTree(mockParse, mockGestureService);
        });

        it("is applicable as an element", function () {
            expect(mctTree.restrict).toEqual("E");
        });

        it("two-way binds to mctObject", function () {
            expect(mctTree.scope).toEqual({ mctObject: "=" });
        });

        describe("link", function () {
            var mockScope,
                mockElement,
                testAttrs;

            beforeEach(function () {
                mockScope = jasmine.createSpyObj('$scope', ['$watch', '$on']);
                mockElement = jasmine.createSpyObj('element', ['append']);
                testAttrs = { mctModel: "some-expression" };
                mockScope.$parent =
                    jasmine.createSpyObj('$scope', ['$watch', '$on']);
                mctTree.link(mockScope, mockElement, testAttrs);
            });

            it("populates the mct-tree element", function () {
                expect(mockElement.append).toHaveBeenCalled();
            });

            it("watches for mct-model's expression in the parent", function () {
                expect(mockScope.$parent.$watch).toHaveBeenCalledWith(
                    testAttrs.mctModel,
                    jasmine.any(Function)
                );
            });

            it("watches for changes to mct-object", function () {
                expect(mockScope.$watch).toHaveBeenCalledWith(
                    "mctObject",
                    jasmine.any(Function)
                );
            });

            it("listens for the $destroy event", function () {
                expect(mockScope.$on).toHaveBeenCalledWith(
                    "$destroy",
                    jasmine.any(Function)
                );
            });
        });
    });

});