updated docs

tests/README.md

@@ -55,16 +55,37 @@ $config['databases']['mysql']['password'] = 'changeme';
 ```
 
 
-DOCKER
-------
+DOCKERIZED TESTING
+------------------
 
-WIP
+*This section is under construction*
 
-Start test stack and enter yii/test container
+Start test stack and enter PHP container
 
     docker-compose up -d
-    docker-compose run --rm test
+    docker-compose run --rm php bash
+
+Run a group of unit tests
+
+    $ vendor/bin/phpunit -v --debug tests/framework/db
+
+Run phpunit directly
+
+    docker-compose run --rm php vendor/bin/phpunit -v --group caching,db   
+    docker-compose run --rm php vendor/bin/phpunit -v --exclude base,caching,db,i18n,log,mutex,rbac,validators,web
+
+### MSSQL    
+
+**experimental**
+
+- needs 3.5 GB RAM, Docker-host with >4.5 GB is recommended for testing
+- database CLI `tsgkadot/mssql-tools`   
+
+Example commands    
+
+    docker-compose run --rm sqlcmd -S mssql -U sa -P Mircosoft-12345 -i /app/schmunk42/yii2/tests/data/mysql.sql
 
-Run unit tests
+Using a shell    
 
-    $ vendor/bin/phpunit -v --debug tests/framework/db
+    docker-compose run --entrypoint sh --rm sqlcmd 
+    $ sqlcmd -S mssql -U sa -P Microsoft-12345