Move all drivers to PSR autoload, and write tests

tests/Drivers/JigsawValetDriverTest.php

@@ -0,0 +1,27 @@
+<?php
+
+use Valet\Drivers\JigsawValetDriver;
+
+class JigsawValetDriverTest extends BaseDriverTestCase
+{
+    public function test_it_serves_jigsaw_projects()
+    {
+        $driver = new JigsawValetDriver();
+
+        $this->assertTrue($driver->serves($this->projectDir('jigsaw'), 'my-site', '/'));
+    }
+
+    public function test_it_doesnt_serve_non_jigsaw_projects_with_public_directory()
+    {
+        $driver = new JigsawValetDriver();
+
+        $this->assertFalse($driver->serves($this->projectDir('public-with-index-non-laravel'), 'my-site', '/'));
+    }
+
+    public function test_it_mutates_uri()
+    {
+        $driver = new JigsawValetDriver();
+
+        $this->assertEquals('/build_local/about', $driver->mutateUri('/about'));
+    }
+}