Add tests for path utils module

test/all.js

@@ -1,6 +1,7 @@
 
 // Utilities
 require('./location');
+require('./paths');
 
 // Parsing
 require('./config');

test/paths.js

@@ -0,0 +1,16 @@
+var pathUtils = require('../lib/utils/path');
+
+describe('Paths', function() {
+
+    describe('setExtension', function() {
+        it('should correctly change extension of filename', function() {
+            pathUtils.setExtension('test.md', '.html').should.be.equal('test.html');
+            pathUtils.setExtension('test.md', '.json').should.be.equal('test.json');
+        });
+
+        it('should correctly change extension of path', function() {
+            pathUtils.setExtension('hello/test.md', '.html').should.be.equal('hello/test.html');
+            pathUtils.setExtension('hello/test.md', '.json').should.be.equal('hello/test.json');
+        });
+    });
+});