diff options
Diffstat (limited to 'activerecord/test/cases/batches_test.rb')
| -rw-r--r-- | activerecord/test/cases/batches_test.rb | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/activerecord/test/cases/batches_test.rb b/activerecord/test/cases/batches_test.rb new file mode 100644 index 0000000000..5009a90846 --- /dev/null +++ b/activerecord/test/cases/batches_test.rb @@ -0,0 +1,61 @@ +require 'cases/helper' +require 'models/post' + +class EachTest < ActiveRecord::TestCase + fixtures :posts + + def setup + @posts = Post.all(: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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