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require 'cases/helper'
require 'models/post'
class EachTest < ActiveRecord::TestCase
fixtures :posts
def setup
@posts = Post.order("id asc")
@total = Post.count
end
def test_each_should_excecute_one_query_per_batch
assert_queries(Post.count + 1) do
Post.find_each(:batch_size => 1) do |post|
assert_kind_of Post, post
end
end
end
def test_each_should_raise_if_the_order_is_set
assert_raise(RuntimeError) do
Post.find_each(:order => "title") { |post| post }
end
end
def test_each_should_raise_if_the_limit_is_set
assert_raise(RuntimeError) do
Post.find_each(:limit => 1) { |post| post }
end
end
def test_find_in_batches_should_return_batches
assert_queries(Post.count + 1) do
Post.find_in_batches(:batch_size => 1) do |batch|
assert_kind_of Array, batch
assert_kind_of Post, batch.first
end
end
end
def test_find_in_batches_should_start_from_the_start_option
assert_queries(Post.count) do
Post.find_in_batches(:batch_size => 1, :start => 2) do |batch|
assert_kind_of Array, batch
assert_kind_of Post, batch.first
end
end
end
def test_find_in_batches_shouldnt_excute_query_unless_needed
post_count = Post.count
assert_queries(2) do
Post.find_in_batches(:batch_size => post_count) {|batch| assert_kind_of Array, batch }
end
assert_queries(1) do
Post.find_in_batches(:batch_size => post_count + 1) {|batch| assert_kind_of Array, batch }
end
end
end
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