waiton mysql server when starting environment.

Author: peterwilsoncc

tools/local-env/scripts/install.js

@@ -40,7 +40,10 @@ writeFileSync( 'wp-tests-config.php', testConfig );
 
 // Once the site is available, install WordPress!
 wait_on( {
-	resources: [ `tcp:localhost:${process.env.LOCAL_PORT}`],
+	resources: [
+		`tcp:localhost:${process.env.LOCAL_PORT}`
+		`tcp:localhost:3306`
+	],
 	timeout: 3000,
 } )
 	.catch( err => {