Proper use of salts

This is what i found in wp-test-config.php

`/**#@+

• Authentication Unique Keys and Salts.
• Change these to different unique phrases!
• You can generate these using the {@link https://api.wordpress.org/secret-key/1.1/salt/ WordPress.org secret-key service}
  */
  define( 'AUTH_KEY', 'put your unique phrase here' );
  define( 'SECURE_AUTH_KEY', 'put your unique phrase here' );
  define( 'LOGGED_IN_KEY', 'put your unique phrase here' );
  define( 'NONCE_KEY', 'put your unique phrase here' );
  define( 'AUTH_SALT', 'put your unique phrase here' );
  define( 'SECURE_AUTH_SALT', 'put your unique phrase here' );
  define( 'LOGGED_IN_SALT', 'put your unique phrase here' );
  define( 'NONCE_SALT', 'put your unique phrase here' );`

Start by inspecting wp-test-config.php and the Authentication Unique Keys and Salts block shown in the issue. Determine how the test runner should obtain unique values instead of the placeholder phrases, then verify the configuration used by the PHPUnit test runner.