tests: add tests for mysql.format() function

Author: dresende

test/unit/test-Mysql.js

@@ -0,0 +1,21 @@
+var assert = require('assert');
+var common = require('../common');
+var path   = require('path');
+var test   = require('utest');
+var Mysql  = require(path.resolve(common.lib, '../index'));
+
+test('Mysql.format', {
+  'format SQL with identifiers and values': function() {
+    assert.equal(
+      Mysql.format('SELECT * FROM ?? WHERE ?? = ?', ['table', 'property', 123]),
+      'SELECT * FROM `table` WHERE `property` = 123'
+    );
+  },
+
+  'format SQL with object value': function() {
+    assert.equal(
+      Mysql.format('INSERT INTO ?? SET ?', ['table', {property: 123}]),
+      'INSERT INTO `table` SET `property` = 123'
+    );
+  }
+});