Start of mssql driver

lib/NodeQuery.js

@@ -13,7 +13,9 @@ const dbDriverMap = new Map([
 	['postgres', 'Pg'],
 	['pg', 'Pg'],
 	['sqlite3', 'Sqlite'],
-	['sqlite', 'Sqlite']
+	['sqlite', 'Sqlite'],
+	['sqlserver', 'MSSQLServer'],
+	['mssql', 'MSSQLServer']
 ]);
 
 /**
@@ -43,7 +45,7 @@ class NodeQuery {
 	constructor (config) {
 		this.instance = null;
 
-		if (config != null) {
+		if (config !== undefined) {
 			let drivername = dbDriverMap.get(config.driver);
 
 			if (!drivername) {
@@ -55,6 +57,8 @@ class NodeQuery {
 
 			let adapter = new Adapter(config.connection);
 			this.instance = new QueryBuilder(driver, adapter);
+		} else {
+			throw new Error('What am I supposed to do without any config options, guess?');
 		}
 	}
 

test/sql/mssql.sql

@@ -0,0 +1,15 @@
+DROP TABLE IF EXISTS [create_join];
+DROP TABLE IF EXISTS [create_test];
+
+-- Table create_join
+CREATE TABLE [create_join] (
+    [id] INTEGER,
+    [key] VARCHAR(255),
+    [val] NVARCHAR(2048)
+);
+
+CREATE TABLE [create_test] (
+    [id] INTEGER,
+    [key] VARCHAR(255),
+    [val] NVARCHAR(2048)
+);