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-rw-r--r--activerecord/test/cases/associations/has_and_belongs_to_many_associations_test.rb18
-rw-r--r--activerecord/test/models/developer.rb2
2 files changed, 20 insertions, 0 deletions
diff --git a/activerecord/test/cases/associations/has_and_belongs_to_many_associations_test.rb b/activerecord/test/cases/associations/has_and_belongs_to_many_associations_test.rb
index 5d33634da2..c166fe87e8 100644
--- a/activerecord/test/cases/associations/has_and_belongs_to_many_associations_test.rb
+++ b/activerecord/test/cases/associations/has_and_belongs_to_many_associations_test.rb
@@ -217,6 +217,24 @@ class HasAndBelongsToManyAssociationsTest < ActiveRecord::TestCase
assert_equal developers(:poor_jamis, :jamis, :david), projects(:active_record).developers
end
+ def test_habtm_collection_size_from_build
+ devel = Developer.create("name" => "Fred Wu")
+ devel.projects << Project.create("name" => "Grimetime")
+ devel.projects.build
+
+ assert_equal 2, devel.projects.size
+ end
+
+ def test_habtm_collection_size_from_params
+ devel = Developer.new({
+ projects_attributes: {
+ '0' => {}
+ }
+ })
+
+ assert_equal 1, devel.projects.size
+ end
+
def test_build
devel = Developer.find(1)
proj = assert_no_queries { devel.projects.build("name" => "Projekt") }
diff --git a/activerecord/test/models/developer.rb b/activerecord/test/models/developer.rb
index 762259ffa3..0a614c3bfd 100644
--- a/activerecord/test/models/developer.rb
+++ b/activerecord/test/models/developer.rb
@@ -13,6 +13,8 @@ class Developer < ActiveRecord::Base
end
end
+ accepts_nested_attributes_for :projects
+
has_and_belongs_to_many :projects_extended_by_name,
-> { extending(DeveloperProjectsAssociationExtension) },
:class_name => "Project",