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rails--rails/activerecord/test/cases/statement_cache_test.rb
2013-04-11 18:08:46 +05:30

64 lines
1.6 KiB
Ruby

require 'cases/helper'
require 'models/book'
require 'models/liquid'
require 'models/molecule'
require 'models/electron'
module ActiveRecord
class StatementCacheTest < ActiveRecord::TestCase
def setup
@connection = ActiveRecord::Base.connection
end
def test_statement_cache_with_simple_statement
cache = ActiveRecord::StatementCache.new do
Book.where(name: "my book").where("author_id > 3")
end
Book.create(name: "my book", author_id: 4)
books = cache.execute
assert_equal "my book", books[0].name
end
def test_statement_cache_with_nil_statement_raises_error
assert_raise(ArgumentError) do
ActiveRecord::StatementCache.new do
nil
end
end
end
def test_statement_cache_with_complex_statement
cache = ActiveRecord::StatementCache.new do
Liquid.joins(:molecules => :electrons).where('molecules.name' => 'dioxane', 'electrons.name' => 'lepton')
end
salty = Liquid.create(name: 'salty')
molecule = salty.molecules.create(name: 'dioxane')
molecule.electrons.create(name: 'lepton')
liquids = cache.execute
assert_equal "salty", liquids[0].name
end
def test_statement_cache_values_differ
cache = ActiveRecord::StatementCache.new do
Book.where(name: "my book")
end
3.times do
Book.create(name: "my book")
end
first_books = cache.execute
3.times do
Book.create(name: "my book")
end
additional_books = cache.execute
assert first_books != additional_books
end
end
end