README.md

Running Tests

From inside the directory, run ruby test_database.rb

Using the Database

Two options:

1. Straight from command line (does not work)

   1. Navigate to directory
   2. Run sh setup.sh
   3. type database commands like:
      • SET Hello World
      • GET Hello
      • DELETE Hello
   4. WARNING: I was attempting, with this maneuver, to replicate exactly the input and output mechanism delineated in the prompt. However, the database does not hold state by this method. I messed with it for about 20 minutes, then decided that you're probably more interested in my database implementation than the exact input mechanism, and I moved on.

2. Via irb

   1. Navigate to directory
   2. Type irb
   3. Type load 'database.rb'
   4. Instantiate database via, for example db = Database.instance
   5. Call methods on the db instance
   6. All method names are the lower case version of what is described in the prompt. For example, db.begin, db.commit, db.end
   7. I attempted to name these methods exactly as described in the prompt (removing the database object and having a file full of methods named things like BEGIN, DELETE, COMMIT), but it turns out a few of these are keywords in ruby. I'm not in the business of bogarting ruby keywords to make my databases, so I left it as an object.

Here is a screenshot of my irb console demonstrating the database at work:

Here is a screenshot of deletion inside a transaction: