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-rw-r--r-- | activerecord/test/json_serialization_test.rb | 148 |
1 files changed, 148 insertions, 0 deletions
diff --git a/activerecord/test/json_serialization_test.rb b/activerecord/test/json_serialization_test.rb new file mode 100644 index 0000000000..f4d4f4e1a3 --- /dev/null +++ b/activerecord/test/json_serialization_test.rb @@ -0,0 +1,148 @@ +require 'abstract_unit' +require 'fixtures/contact' +require 'fixtures/post' +require 'fixtures/author' +require 'fixtures/tagging' +require 'fixtures/tag' +require 'fixtures/comment' + +class JsonSerializationTest < Test::Unit::TestCase + def setup + # Quote all keys (so that we can test against strictly valid JSON). + ActiveSupport::JSON.unquote_hash_key_identifiers = false + + @contact = Contact.new( + :name => 'Konata Izumi', + :age => 16, + :avatar => 'binarydata', + :created_at => Time.utc(2006, 8, 1), + :awesome => true, + :preferences => { :shows => 'anime' } + ) + end + + def test_should_encode_all_encodable_attributes + json = @contact.to_json + + assert_match %r{"name": "Konata Izumi"}, json + assert_match %r{"age": 16}, json + assert_match %r{"created_at": #{ActiveSupport::JSON.encode(Time.utc(2006, 8, 1))}}, json + assert_match %r{"awesome": true}, json + assert_match %r{"preferences": \{"shows": "anime"\}}, json + end + + def test_should_allow_attribute_filtering_with_only + json = @contact.to_json(:only => [:name, :age]) + + assert_match %r{"name": "Konata Izumi"}, json + assert_match %r{"age": 16}, json + assert_no_match %r{"awesome": true}, json + assert_no_match %r{"created_at": #{ActiveSupport::JSON.encode(Time.utc(2006, 8, 1))}}, json + assert_no_match %r{"preferences": \{"shows": "anime"\}}, json + end + + def test_should_allow_attribute_filtering_with_except + json = @contact.to_json(:except => [:name, :age]) + + assert_no_match %r{"name": "Konata Izumi"}, json + assert_no_match %r{"age": 16}, json + assert_match %r{"awesome": true}, json + assert_match %r{"created_at": #{ActiveSupport::JSON.encode(Time.utc(2006, 8, 1))}}, json + assert_match %r{"preferences": \{"shows": "anime"\}}, json + end + + def test_methods_are_called_on_object + # Define methods on fixture. + def @contact.label; "Has cheezburger"; end + def @contact.favorite_quote; "Constraints are liberating"; end + + # Single method. + assert_match %r{"label": "Has cheezburger"}, @contact.to_json(:only => :name, :methods => :label) + + # Both methods. + methods_json = @contact.to_json(:only => :name, :methods => [:label, :favorite_quote]) + assert_match %r{"label": "Has cheezburger"}, methods_json + assert_match %r{"favorite_quote": "Constraints are liberating"}, methods_json + end +end + +class DatabaseConnectedJsonEncodingTest < Test::Unit::TestCase + fixtures :authors, :posts, :comments, :tags, :taggings + + def setup + ActiveSupport::JSON.unquote_hash_key_identifiers = false + + @david = authors(:david) + end + + def test_includes_uses_association_name + json = @david.to_json(:include => :posts) + + assert_match %r{"posts": \[}, json + + assert_match %r{"id": 1}, json + assert_match %r{"name": "David"}, json + + assert_match %r{"author_id": 1}, json + assert_match %r{"title": "Welcome to the weblog"}, json + assert_match %r{"body": "Such a lovely day"}, json + + assert_match %r{"title": "So I was thinking"}, json + assert_match %r{"body": "Like I hopefully always am"}, json + end + + def test_includes_uses_association_name_and_applies_attribute_filters + json = @david.to_json(:include => { :posts => { :only => :title } }) + + assert_match %r{"name": "David"}, json + assert_match %r{"posts": \[}, json + + assert_match %r{"title": "Welcome to the weblog"}, json + assert_no_match %r{"body": "Such a lovely day"}, json + + assert_match %r{"title": "So I was thinking"}, json + assert_no_match %r{"body": "Like I hopefully always am"}, json + end + + def test_includes_fetches_second_level_associations + json = @david.to_json(:include => { :posts => { :include => { :comments => { :only => :body } } } }) + + assert_match %r{"name": "David"}, json + assert_match %r{"posts": \[}, json + + assert_match %r{"comments": \[}, json + assert_match %r{\{"body": "Thank you again for the welcome"\}}, json + assert_match %r{\{"body": "Don't think too hard"\}}, json + assert_no_match %r{"post_id": }, json + end + + def test_includes_fetches_nth_level_associations + json = @david.to_json( + :include => { + :posts => { + :include => { + :taggings => { + :include => { + :tag => { :only => :name } + } + } + } + } + }) + + assert_match %r{"name": "David"}, json + assert_match %r{"posts": \[}, json + + assert_match %r{"taggings": \[}, json + assert_match %r{"tag": \{"name": "General"\}}, json + end + + def test_should_not_call_methods_on_associations_that_dont_respond + def @david.favorite_quote; "Constraints are liberating"; end + json = @david.to_json(:include => :posts, :methods => :favorite_quote) + + assert !@david.posts.first.respond_to?(:favorite_quote) + assert_match %r{"favorite_quote": "Constraints are liberating"}, json + assert_equal %r{"favorite_quote": }.match(json).size, 1 + end +end
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