ReversibleData

ReversibleData makes it easy to define models / tables that are automatically brought up and down as part of the testing process. It doesn't use migrations instead simply creating and dropping tables.

Usage: ReversibleData::Table

To get started, you need to setup and require the gem and establish a connection. For most plugins, the example should fill most uses.

require 'reversible_data'

ReversibleData.in_memory!

table = ReversibleData.add(:users) do |t|
  t.string  :name
  t.integer :age
end

# Optional: a class_eval block

table.define_model do
  validates_presence_of :name
end

# Reset the definition
table.clear_model_definition!

# You can then use table.create_table, table.drop_table,
# table.create_model, table.remove_model.

sing ReversibleData.add, you can specify a class_name option

ReversibleData.add(:awesome_sauce, :class_name => "Ninja")

If nil, it will use the rails default method of generating a model name.

Finally, it accepts an options hash with :skip_model and :skip_table which make it easy to skip creating part.

Usage: ReversibleData::TableManager

The table manager is a simple wrapper around multiple tables which makes it super easy to do the up / down process. E.g.:

manager = ReversibleData.manager_for(:users, :awesome_sauce)
manager.up!
manager.down!

Shoulda Macro

Conveniently, there is a simple Shoulda macro you can use to make make writing these tests easy. It's as simple as:

class MyTest < Test::Unit::TestCase
  extend ReversibleData::ShouldaMacros

  with_tables :users, :awesome_sauce do

    # Your tests here...

  end

end