// Run $ expresso
var I18n = require('../i18n'),
	assert = require('assert'),
	fs = require('fs');

module.exports = {
	'check set/getLocale': function () {
		var i18n = new I18n({
			locales: ['en', 'de'],
			directory: './testlocales',
			extension: '.json'
		});

		var loc = i18n.getLocale();
		assert.equal('en', i18n.getLocale(), 'should return default setting');
		assert.equal('de', i18n.setLocale('de'), 'should return the new setting');
		assert.equal('de', i18n.getLocale(), 'should return the new setting');
	},

    'check set defaultLocale when no default supplied': function () {
        var i18n = new I18n({
            locales: ['en', 'de'],
            directory: './testlocales',
            extension: '.json'
        });

        var loc = i18n.getLocale();
        assert.equal('en', i18n.getLocale(), 'should return first locale setting from locales');
    },

    'check set defaultLocale when default supplied': function () {
        var i18n = new I18n({
            locales: ['en', 'de'],
            directory: './testlocales',
            extension: '.json',
            defaultLocale: 'de'
        });

        var loc = i18n.getLocale();
        assert.equal('de', i18n.getLocale(), 'should return default locale setting');
    },

	'check singular': function () {
		var i18n = new I18n({
			locales: ['en', 'de'],
			directory: './testlocales',
			extension: '.json'
		});

		i18n.setLocale('en');
		assert.equal(i18n.__('Hello'), 'Hello');
		assert.equal(i18n.__('Hello %s, how are you today?', 'Marcus'), 'Hello Marcus, how are you today?');
		assert.equal(i18n.__('Hello %s, how are you today? How was your %s.', 'Marcus', i18n.__('weekend')), 'Hello Marcus, how are you today? How was your weekend.');
	},

    'check setLocale from environment variable': function () {
		var i18n = new I18n({
			locales: ['en', 'de'],
			directory: './testlocales',
			extension: '.json'
		});
		var defaultLang = process.env.LANG;
		try {
			process.env.LANG = "de_DE.UTF-8";
			i18n.setLocaleFromEnvironmentVariable();
			assert.equal('de', i18n.getLocale(), 'should return the new setting');
		} finally {
			process.env.LANG = defaultLang;
		}
	}
};