Install test db for running unit tests

1. Make sure your docker container is running with posgress is running
2. Download db dump https://drive.google.com/file/d/1XNnMsvW1isoxkEssFxEIDB7cJa__TwKr/view?usp=sharing
3. Copy downloaded dump into docker posgres container:

   docker cp /your/local_path/powr_test.dump posgres_container_name_or_hash:/tmp/backup.dump

4. Open terminal with posgres container:

   docker exec -it your_posgres_container_name_or_hash bash

5. Login in posgres:

   psql -U postgres

6. Create new database

   create database postgres_spec;

7. Quit from psql console and restore dump

   \q

psql -U postgres postgres_spec < tmp/backup.dump 8. Open project terminal and run test rspec