var path = require('path'),
    assert = require('assert'),
    fs = require('fs');

var existsSync = require('fs').existsSync || require('path').existsSync;
var carto = require('../lib/carto');
var tree = require('../lib/carto/tree');
var helper = require('./support/helper');



describe('Rendering mss', function() {
helper.files('rendering-mss', 'mss', function(file) {
    it('should render mss ' + path.basename(file) + ' correctly', function() {
        var completed = false;
        var renderResult;
        var mss = helper.mss(file);
        try {
            var output = new carto.Renderer({
                paths: [ path.dirname(file) ],
                data_dir: path.join(__dirname, '../data'),
                local_data_dir: path.join(__dirname, 'rendering'),
                filename: file
            }).renderMSS(mss);
        } catch(err) {
            if (Array.isArray(err)){
                err.forEach(carto.writeError);
            } else {
                throw err;
            }
        }
        var expected =  file.replace(path.extname(file),'')+'.xml';
        if (!existsSync(expected)) {
          fs.writeFileSync(expected,output);
        }
        var expected_data = fs.readFileSync(expected).toString();
        assert.equal(output.trim(),expected_data.trim());
    });
});
});