88 lines
2.6 KiB
JavaScript
88 lines
2.6 KiB
JavaScript
/**
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* Tests named trait definitions
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*
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* Copyright (C) 2014 Mike Gerwitz
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*
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* This file is part of GNU ease.js.
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*
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* ease.js is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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require( 'common' ).testCase(
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{
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caseSetUp: function()
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{
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this.Sut = this.require( 'Trait' );
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this.Class = this.require( 'class' );
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},
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/**
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* If a trait is not given a name, then converting it to a string should
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* indicate that it is anonymous. Further, to disambiguate from
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* anonymous classes, we should further indicate that it is a trait.
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*
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* This test is fragile in the sense that it tests for an explicit
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* string: this is intended, since some developers may rely on this
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* string (even though they really should use Trait.isTrait), and so it
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* should be explicitly documented.
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*/
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'Anonymous trait is properly indicated when converted to string':
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function()
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{
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var given = this.Sut( {} ).toString();
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this.assertEqual( given, '(Trait)' );
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},
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/**
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* Analagous to named classes: we should provide the name when
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* converting to a string to aid in debugging.
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*/
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'Named trait contains name when converted to string': function()
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{
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var name = 'FooTrait',
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T = this.Sut( name, {} );
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this.assertOk( T.toString().match( name ) );
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},
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/**
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* We assume that, if two or more arguments are provided, that the
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* definition is named.
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*/
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'Named trait definition cannot contain zero or more than two arguments':
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function()
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{
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var Sut = this.Sut;
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this.assertThrows( function() { Sut(); } );
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this.assertThrows( function() { Sut( 1, 2, 3 ); } );
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},
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/**
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* Operating on the same assumption as the above test.
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*/
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'First argument in named trait definition must be a string':
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function()
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{
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var Sut = this.Sut;
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this.assertThrows( function()
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{
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Sut( {}, {} );
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} );
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},
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} );
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