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easejs/test/test-interface-name.js

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2.9 KiB
JavaScript

/**
* Tests interface naming
*
* Copyright (C) 2010 Mike Gerwitz
*
* This file is part of ease.js.
*
* ease.js is free software: you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License as published by the Free
* Software Foundation, either version 3 of the License, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* @author Mike Gerwitz
* @package test
*/
var common = require( './common' ),
assert = require( 'assert' ),
Interface = common.require( 'interface' )
;
/**
* Interfaces may be named by passing the name as the first argument to the
* module
*/
( function testInterfaceAcceptsName()
{
assert.doesNotThrow( function()
{
var iface = Interface( 'Foo', {} );
assert.equal(
Interface.isInterface( iface ),
true,
"Interface defined with name is returned as a valid interface"
);
}, Error, "Interface accepts name" );
// the second argument must be an object
assert.throws( function()
{
Interface( 'Foo', 'Bar' );
}, TypeError, "Second argument to named interface must be the definition" );
// we should be permitted only two arguments
var args = [ 'Foo', {}, 'extra' ];
try
{
Interface.apply( null, args );
// we should not get to this line (an exception should be thrown due to
// too many arguments)
assert.fail(
"Should accept only two arguments when creating named interface"
);
}
catch ( e )
{
assert.notEqual(
e.toString().match( args.length + ' given' ),
null,
"Named interface error should provide number of given arguments"
);
}
} )();
/**
* By default, anonymous interfacees should simply state that they are a
* interface when they are converted to a string
*/
( function testConvertingAnonymousInterfaceToStringYieldsInterfaceString()
{
assert.equal(
Interface( {} ).toString(),
'[object Interface]',
"Converting anonymous interface to string yields interface string"
);
} )();
/**
* If the interface is named, then the name should be presented when it is
* converted to a string
*/
( function testConvertingNamedInterfaceToStringYieldsInterfaceStringContainingName()
{
var name = 'Foo';
assert.equal(
Interface( name, {} ).toString(),
'[object Interface <' + name + '>]',
"Converting named interface to string yields string with name of " +
"interface"
);
} )();