require 'test_helper' class TestJsonRenderer < ActiveSupport::TestCase setup do @data = User.new(1, 'foobar', 'male') @data.stub(:respond_to?).with(:each).and_return(false) @context = Context.new @context.stub(:instance_variable_get).with(:@data).and_return(@data) @context.stub(:instance_variable_get).with(:@_assigns).and_return({}) @template = RablRails::CompiledTemplate.new @template.data = :@data end def render_json_output RablRails::Renderers::JSON.new(@context).render(@template).to_s end test "render object wth empty template" do @template.source = {} assert_equal %q({}), render_json_output end test "render collection with empty template" do @context.stub(:instance_variable_get).with(:@data).and_return([@data]) @template.source = {} assert_equal %q([{}]), render_json_output end test "render single object attributes" do @template.source = { :id => :id, :name => :name } assert_equal %q({"id":1,"name":"foobar"}), render_json_output end test "render child with object association" do @data.stub(:address).and_return(mock(:city => 'Paris')) @template.source = { :address => { :_data => :address, :city => :city } } assert_equal %q({"address":{"city":"Paris"}}), render_json_output end test "render child with arbitrary data source" do @template.source = { :author => { :_data => :@data, :name => :name } } assert_equal %q({"author":{"name":"foobar"}}), render_json_output end test "render glued attributes from single object" do @template.source = { :_glue0 => { :_data => :@data, :name => :name } } assert_equal %q({"name":"foobar"}), render_json_output end test "render collection with attributes" do @data = [User.new(1, 'foo', 'male'), User.new(2, 'bar', 'female')] @context.stub(:instance_variable_get).with(:@data).and_return(@data) @template.source = { :uid => :id, :name => :name, :gender => :sex } assert_equal %q([{"uid":1,"name":"foo","gender":"male"},{"uid":2,"name":"bar","gender":"female"}]), render_json_output end test "render node property" do proc = lambda { |object| object.name } @template.source = { :name => proc } assert_equal %q({"name":"foobar"}), render_json_output end test "render node property with true condition" do condition = lambda { |u| true } proc = lambda { |object| object.name } @template.source = { :name => [condition, proc] } assert_equal %q({"name":"foobar"}), render_json_output end test "render node property with false condition" do condition = lambda { |u| false } proc = lambda { |object| object.name } @template.source = { :name => [condition, proc] } assert_equal %q({}), render_json_output end test "node with context method call" do @context.stub(:respond_to?).with(:context_method).and_return(true) @context.stub(:context_method).and_return('marty') proc = lambda { |object| context_method } @template.source = { :name => proc } assert_equal %q({"name":"marty"}), render_json_output end test "partial should be evaluated at rendering time" do # Set assigns @context.stub(:instance_variable_get).with(:@_assigns).and_return({'user' => @data}) @data.stub(:respond_to?).with(:empty?).and_return(false) # Stub Library#get t = RablRails::CompiledTemplate.new t.source = { :name => :name } RablRails::Library.reset_instance RablRails::Library.instance.should_receive(:compile_template_from_path).with('users/base').and_return(t) @template.data = false @template.source = { :user => ->(s) { partial('users/base', :object => @user) } } assert_equal %q({"user":{"name":"foobar"}}), render_json_output end test "partial with no values should raise an error" do @template.data = false @template.source = { :user => ->(s) { partial('users/base') } } assert_raises(RablRails::Renderers::PartialError) { render_json_output } end test "partial with empty values should not raise an error" do @template.data = false @template.source = { :users => ->(s) { partial('users/base', :object => []) } } assert_equal %q({"users":[]}), render_json_output end test "render object with root node" do @template.root_name = :author @template.source = { :id => :id, :name => :name } assert_equal %q({"author":{"id":1,"name":"foobar"}}), render_json_output end test "render object with root options set to false" do RablRails.include_json_root = false @template.root_name = :author @template.source = { :id => :id, :name => :name } assert_equal %q({"id":1,"name":"foobar"}), render_json_output end end