Add getConfig() method

Author: tonyganch

lib/csscomb.js

@@ -37,6 +37,27 @@ var Comb = function() {
 
 Comb.prototype = {
 
+    /**
+     * Get one of configuration files from `config` directory
+     * @param {String} name Config's name: 'csscomb', 'zen' or 'yandex'
+     * @returns {Object} Configuration object
+     */
+    getConfig: function(name) {
+        name = name || 'csscomb';
+
+        if (typeof name !== 'string') {
+            throw new Error('Config name should be a string');
+        }
+
+        if (['csscomb', 'zen', 'yandex'].indexOf(name) < 0) {
+            var message = name + ' is not a valid config name. Try one of ' +
+                'the following: \'csscomb\', \'zen\' or \'yandex\'.';
+            throw new Error(message);
+        }
+
+        return require('../config/' + name + '.json');
+    },
+
     /**
      * Loads configuration from JSON.
      * Activates and configures required options.

test/get-config.js

@@ -0,0 +1,54 @@
+var Comb = require('../lib/csscomb');
+var assert = require('assert');
+
+describe('csscomb methods', function() {
+    var comb = new Comb();
+
+    it('getConfig()', function() {
+        var config = require('../config/csscomb.json');
+
+        assert.equal(comb.getConfig(), config);
+    });
+
+    it('getConfig(number)', function() {
+        assert.throws(function() {
+            comb.getConfig(16);
+        });
+    });
+
+    it('getConfig(boolean)', function() {
+        assert.throws(function() {
+            comb.getConfig(true);
+        });
+    });
+
+    it('getConfig(empty string)', function() {
+        var config = require('../config/csscomb.json');
+
+        assert.equal(comb.getConfig(''), config);
+    });
+
+    it('getConfig(invalid string)', function() {
+        assert.throws(function() {
+            comb.getConfig('nani');
+        });
+    });
+
+    it('getConfig(csscomb)', function() {
+        var config = require('../config/csscomb.json');
+
+        assert.equal(comb.getConfig('csscomb'), config);
+    });
+
+    it('getConfig(zen)', function() {
+        var config = require('../config/zen.json');
+
+        assert.equal(comb.getConfig('zen'), config);
+    });
+
+    it('getConfig(yandex)', function() {
+        var config = require('../config/yandex.json');
+
+        assert.equal(comb.getConfig('yandex'), config);
+    });
+});