/*
 * Copyright 2014,2015 Open Networking Laboratory
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/*
 ONOS GUI -- Util -- General Purpose Functions - Unit Tests
 */
describe('factory: fw/util/fn.js', function() {
    var $window,
        fs,
        someFunction = function () {},
        someArray = [1, 2, 3],
        someObject = { foo: 'bar'},
        someNumber = 42,
        someString = 'xyyzy',
        someDate = new Date(),
        stringArray = ['foo', 'bar'];

    beforeEach(module('onosUtil'));

    beforeEach(inject(function (_$window_, FnService) {
        $window = _$window_;
        fs = FnService;

        $window.innerWidth = 400;
        $window.innerHeight = 200;
    }));


    // === Tests for isF()
    it('isF(): null for undefined', function () {
        expect(fs.isF(undefined)).toBeNull();
    });
    it('isF(): null for null', function () {
        expect(fs.isF(null)).toBeNull();
    });
    it('isF(): the reference for function', function () {
        expect(fs.isF(someFunction)).toBe(someFunction);
    });
    it('isF(): null for string', function () {
        expect(fs.isF(someString)).toBeNull();
    });
    it('isF(): null for number', function () {
        expect(fs.isF(someNumber)).toBeNull();
    });
    it('isF(): null for Date', function () {
        expect(fs.isF(someDate)).toBeNull();
    });
    it('isF(): null for array', function () {
        expect(fs.isF(someArray)).toBeNull();
    });
    it('isF(): null for object', function () {
        expect(fs.isF(someObject)).toBeNull();
    });


    // === Tests for isA()
    it('isA(): null for undefined', function () {
        expect(fs.isA(undefined)).toBeNull();
    });
    it('isA(): null for null', function () {
        expect(fs.isA(null)).toBeNull();
    });
    it('isA(): null for function', function () {
        expect(fs.isA(someFunction)).toBeNull();
    });
    it('isA(): null for string', function () {
        expect(fs.isA(someString)).toBeNull();
    });
    it('isA(): null for number', function () {
        expect(fs.isA(someNumber)).toBeNull();
    });
    it('isA(): null for Date', function () {
        expect(fs.isA(someDate)).toBeNull();
    });
    it('isA(): the reference for array', function () {
        expect(fs.isA(someArray)).toBe(someArray);
    });
    it('isA(): null for object', function () {
        expect(fs.isA(someObject)).toBeNull();
    });


    // === Tests for isS()
    it('isS(): null for undefined', function () {
        expect(fs.isS(undefined)).toBeNull();
    });
    it('isS(): null for null', function () {
        expect(fs.isS(null)).toBeNull();
    });
    it('isS(): null for function', function () {
        expect(fs.isS(someFunction)).toBeNull();
    });
    it('isS(): the reference for string', function () {
        expect(fs.isS(someString)).toBe(someString);
    });
    it('isS(): null for number', function () {
        expect(fs.isS(someNumber)).toBeNull();
    });
    it('isS(): null for Date', function () {
        expect(fs.isS(someDate)).toBeNull();
    });
    it('isS(): null for array', function () {
        expect(fs.isS(someArray)).toBeNull();
    });
    it('isS(): null for object', function () {
        expect(fs.isS(someObject)).toBeNull();
    });


    // === Tests for isO()
    it('isO(): null for undefined', function () {
        expect(fs.isO(undefined)).toBeNull();
    });
    it('isO(): null for null', function () {
        expect(fs.isO(null)).toBeNull();
    });
    it('isO(): null for function', function () {
        expect(fs.isO(someFunction)).toBeNull();
    });
    it('isO(): null for string', function () {
        expect(fs.isO(someString)).toBeNull();
    });
    it('isO(): null for number', function () {
        expect(fs.isO(someNumber)).toBeNull();
    });
    it('isO(): null for Date', function () {
        expect(fs.isO(someDate)).toBeNull();
    });
    it('isO(): null for array', function () {
        expect(fs.isO(someArray)).toBeNull();
    });
    it('isO(): the reference for object', function () {
        expect(fs.isO(someObject)).toBe(someObject);
    });

    // === Tests for contains()
    it('contains(): false for improper args', function () {
        expect(fs.contains()).toBeFalsy();
    });
    it('contains(): false for non-array', function () {
        expect(fs.contains(null, 1)).toBeFalsy();
    });
    it('contains(): true for contained item', function () {
        expect(fs.contains(someArray, 1)).toBeTruthy();
        expect(fs.contains(stringArray, 'bar')).toBeTruthy();
    });
    it('contains(): false for non-contained item', function () {
        expect(fs.contains(someArray, 109)).toBeFalsy();
        expect(fs.contains(stringArray, 'zonko')).toBeFalsy();
    });

    // === Tests for areFunctions()
    it('areFunctions(): false for non-array', function () {
        expect(fs.areFunctions({}, 'not-an-array')).toBeFalsy();
    });
    it('areFunctions(): true for empty-array', function () {
        expect(fs.areFunctions({}, [])).toBeTruthy();
    });
    it('areFunctions(): true for some api', function () {
        expect(fs.areFunctions({
            a: function () {},
            b: function () {}
        }, ['b', 'a'])).toBeTruthy();
    });
    it('areFunctions(): false for some other api', function () {
        expect(fs.areFunctions({
            a: function () {},
            b: 'not-a-function'
        }, ['b', 'a'])).toBeFalsy();
    });
    it('areFunctions(): extraneous stuff ignored', function () {
        expect(fs.areFunctions({
            a: function () {},
            b: function () {},
            c: 1,
            d: 'foo'
        }, ['a', 'b'])).toBeTruthy();
    });


    // === Tests for windowSize()
    it('windowSize(): noargs', function () {
        var dim = fs.windowSize();
        expect(dim.width).toEqual(400);
        expect(dim.height).toEqual(200);
    });

    it('windowSize(): adjust height', function () {
        var dim = fs.windowSize(50);
        expect(dim.width).toEqual(400);
        expect(dim.height).toEqual(150);
    });

    it('windowSize(): adjust width', function () {
        var dim = fs.windowSize(0, 50);
        expect(dim.width).toEqual(350);
        expect(dim.height).toEqual(200);
    });

    it('windowSize(): adjust width and height', function () {
        var dim = fs.windowSize(101, 201);
        expect(dim.width).toEqual(199);
        expect(dim.height).toEqual(99);
    });
});