(function () {
'use strict';

var ID = 'core/util';
var DEPS = ['_'];

describe('module \'' + ID + '\'', function () {

    before(function () {

        this.definition = modulejs._private.definitions[ID];

        this.applyFn = function () {

            return this.definition.fn(_);
        };
    });

    describe('definition', function () {

        it('is defined', function () {

            assert.isPlainObject(this.definition);
        });

        it('has correct id', function () {

            assert.strictEqual(this.definition.id, ID);
        });

        it('requires correct', function () {

            assert.deepEqual(this.definition.deps, DEPS);
        });

        it('args for each request', function () {

            assert.strictEqual(this.definition.deps.length, this.definition.fn.length);
        });

        it('has no instance', function () {

            assert.notProperty(modulejs._private.instances, ID);
        });

        it('inits without errors', function () {

            this.applyFn();
        });
    });

    describe('application', function () {

        it('returns plain object with 4 properties', function () {

            var instance = this.applyFn();
            assert.isPlainObject(instance);
            assert.lengthOfKeys(instance, 4);
        });
    });

    describe('.regularCmpFn()', function () {

        it('is function', function () {

            var instance = this.applyFn();
            assert.isFunction(instance.regularCmpFn);
        });

        _.each([
            [0, 0, 0],
            [1, 0, 1],
            [1, 2, -1],
            ['a', 'a', 0],
            ['b', 'a', 1],
            ['a', 'b', -1],
            ['a 2', 'a 10', 1]
        ], function (data) {

            var arg1 = data[0];
            var arg2 = data[1];
            var exp = data[2];

            it(arg1 + ', ' + arg2 + ' => ' + exp, function () {

                var instance = this.applyFn();
                assert.strictEqual(instance.regularCmpFn(arg1, arg2), exp);
            });
        });
    });

    describe('.naturalCmpFn()', function () {

        it('is function', function () {

            var instance = this.applyFn();
            assert.isFunction(instance.naturalCmpFn);
        });

        _.each([
            [0, 0, 0],
            [1, 0, 1],
            [1, 2, -1],
            ['a', 'a', 0],
            ['b', 'a', 1],
            ['a', 'b', -1],
            ['a 2', 'a 10', -1]
        ], function (data) {

            var arg1 = data[0];
            var arg2 = data[1];
            var exp = data[2];

            it(arg1 + ', ' + arg2 + ' => ' + exp, function () {

                var instance = this.applyFn();
                assert.strictEqual(instance.naturalCmpFn(arg1, arg2), exp);
            });
        });
    });

    describe('.escapePattern()', function () {

        it('is function', function () {

            var instance = this.applyFn();
            assert.isFunction(instance.escapePattern);
        });

        _.each([
            ['a', 'a'],
            ['1', '1'],
            ['ä', 'ä'],
            ['~', '~'],
            [':', ':'],
            ['_', '_'],
            ['<', '<'],
            ['-', '\\-'],
            ['[', '\\['],
            [']', '\\]'],
            ['{', '\\{'],
            ['}', '\\}'],
            ['(', '\\('],
            [')', '\\)'],
            ['*', '\\*'],
            ['+', '\\+'],
            ['?', '\\?'],
            ['.', '\\.'],
            [',', '\\,'],
            ['\\', '\\\\'],
            ['$', '\\$'],
            ['^', '\\^'],
            ['|', '\\|'],
            ['#', '\\#'],
            [' ', '\\ '],
            ['-[]{}()*+?.,\\$^|# ', '\\-\\[\\]\\{\\}\\(\\)\\*\\+\\?\\.\\,\\\\\\$\\^\\|\\#\\ '],
            ['abc123', 'abc123'],
            ['a.b+c*1', 'a\\.b\\+c\\*1']
        ], function (data) {

            var arg = data[0];
            var exp = data[1];

            it(arg + ' => ' + exp, function () {

                var instance = this.applyFn();
                assert.strictEqual(instance.escapePattern(arg), exp);
            });
        });
    });

    describe('.parsePattern()', function () {

        it('is function', function () {

            var instance = this.applyFn();
            assert.isFunction(instance.parsePattern);
        });

        _.each([
            ['a', false, 'a'],
            ['1', false, '1'],
            ['ä', false, 'ä'],
            ['~', false, '~'],
            [':', false, ':'],
            ['_', false, '_'],
            ['<', false, '<'],
            ['-', false, '\\-'],
            ['[', false, '\\['],
            [']', false, '\\]'],
            ['{', false, '\\{'],
            ['}', false, '\\}'],
            ['(', false, '\\('],
            [')', false, '\\)'],
            ['*', false, '\\*'],
            ['+', false, '\\+'],
            ['?', false, '\\?'],
            ['.', false, '\\.'],
            [',', false, '\\,'],
            ['\\', false, '\\\\'],
            ['$', false, '\\$'],
            ['^', false, '\\^'],
            ['|', false, '\\|'],
            ['#', false, '\\#'],
            [' ', false, '\\ '],
            ['-[]{}()*+?.,\\$^|# ', false, '\\-\\[\\]\\{\\}\\(\\)\\*\\+\\?\\.\\,\\\\\\$\\^\\|\\#\\ '],
            ['abc123', false, 'abc123'],
            ['a.b+c*1', false, 'a\\.b\\+c\\*1'],

            ['abc', true, 'a.*?b.*?c'],
            ['abc def', true, 'a.*?b.*?c|d.*?e.*?f'],
            ['*#a b.=', true, '\\*.*?\\#.*?a|b.*?\\..*?='],
            ['re:.', true, '.'],
            [' .', true, '\\.'],
            ['re: .', true, ' .']

        ], function (data) {

            var arg1 = data[0];
            var arg2 = data[1];
            var exp = data[2];

            it(arg1 + ', ' + arg2 + ' => ' + exp, function () {

                var instance = this.applyFn();
                assert.strictEqual(instance.parsePattern(arg1, arg2), exp);
            });
        });
    });
});

}());