Add Currency formatter
* src/validate/formatter/Currency.js: Add trait. * test/validate/formatter/CurrencyTest.js: Add test case.master
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/**
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* Currency formatter
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*
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* Copyright (C) 2016 LoVullo Associates, Inc.
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*
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* This file is part of liza.
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*
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* liza 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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var Trait = require( 'easejs' ).Trait,
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ValidatorFormatter = require( '../ValidatorFormatter' );
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/**
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* Formats amount as currency
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*
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* This does not guarantee that the value is a number; this should be
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* mixed in atop of a formatter that does guarantee such.
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*/
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module.exports = Trait( 'Currency' )
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.implement( ValidatorFormatter )
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.extend(
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{
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/**
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* Parse item as currency
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*
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* @param {string} data data to parse
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*
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* @return {string} data formatted for storage
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*/
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'virtual abstract override public parse': function( data )
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{
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return this.__super( data ).replace( /^\$*/g, '' );
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},
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/**
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* Format amount as a currency
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*
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* @param {string} data data to format for display
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*
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* @return {string} data formatted for display
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*/
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'virtual abstract override public retrieve': function( data )
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{
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return this.styleCurrency( this.__super( data ) );
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},
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/**
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* Style amount with currency symbol
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*
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* @param {string} amount amount to style
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*
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* @return {string} formatted number
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*/
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'virtual protected styleCurrency': function( amount )
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{
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return ( ''+amount === '' )
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? amount
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: '$' + amount;
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},
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} );
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/**
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* Currency formatter test
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*
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* Copyright (C) 2016 LoVullo Associates, Inc.
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*
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* This file is part of liza.
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*
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* liza 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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var liza = require( '../../../' ),
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Sut = liza.validate.formatter.Currency,
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EchoFormatter = liza.validate.formatter.EchoFormatter,
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common = require( './common' );
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describe( 'validate.formatter.Currency', function()
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{
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common.testValidate( EchoFormatter.use( Sut )(), {
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// should format anything given to it, with or without prefix
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"1": [ "1", "$1" ],
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"foo": [ "foo", "$foo" ],
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"+": [ "+", "$+" ],
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"$foo": [ "foo", "$foo" ],
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// empty shouldn't format as anything
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"": [ "", "" ],
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"$": [ "", "" ],
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"$$": [ "", "" ],
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// make sure these aren't considered to be empty
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"0": [ "0", "$0" ],
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"$0": [ "0", "$0" ],
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// be lax on input
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"$$foo": [ "foo", "$foo" ],
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"$$$$$$$12.34": [ "12.34", "$12.34" ],
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} );
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common.testMixin(
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EchoFormatter,
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Sut,
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'foo',
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'123',
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'foo123',
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'$foo123'
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);
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} );
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