require "abstract_unit" require "controller/fake_models" class TestController < ActionController::Base end module RenderTestCases def setup_view(paths) @assigns = { secret: "in the sauce" } @view = Class.new(ActionView::Base) do def view_cache_dependencies; end def fragment_cache_key(key) ActiveSupport::Cache.expand_cache_key(key, :views) end end.new(paths, @assigns) @controller_view = TestController.new.view_context # Reload and register danish language for testing I18n.backend.store_translations "da", {} I18n.backend.store_translations "pt-BR", {} # Ensure original are still the same since we are reindexing view paths assert_equal ORIGINAL_LOCALES, I18n.available_locales.map(&:to_s).sort end def test_render_without_options e = assert_raises(ArgumentError) { @view.render() } assert_match(/You invoked render but did not give any of (.+) option./, e.message) end def test_render_file assert_equal "Hello world!", @view.render(file: "test/hello_world") end # Test if :formats, :locale etc. options are passed correctly to the resolvers. def test_render_file_with_format assert_match "

No Comment

", @view.render(file: "comments/empty", formats: [:html]) assert_match "No Comment", @view.render(file: "comments/empty", formats: [:xml]) assert_match "No Comment", @view.render(file: "comments/empty", formats: :xml) end def test_render_template_with_format assert_match "

No Comment

", @view.render(template: "comments/empty", formats: [:html]) assert_match "No Comment", @view.render(template: "comments/empty", formats: [:xml]) end def test_rendered_format_without_format @view.render(inline: "test") assert_equal :html, @view.lookup_context.rendered_format end def test_render_partial_implicitly_use_format_of_the_rendered_template @view.lookup_context.formats = [:json] assert_equal "Hello world", @view.render(template: "test/one", formats: [:html]) end def test_render_partial_implicitly_use_format_of_the_rendered_partial @view.lookup_context.formats = [:html] assert_equal "Third level", @view.render(template: "test/html_template") end def test_render_partial_use_last_prepended_format_for_partials_with_the_same_names @view.lookup_context.formats = [:html] assert_equal "\nHTML Template, but JSON partial", @view.render(template: "test/change_priority") end def test_render_template_with_a_missing_partial_of_another_format @view.lookup_context.formats = [:html] e = assert_raise ActionView::Template::Error do @view.render(template: "with_format", formats: [:json]) end assert_includes(e.message, "Missing partial /_missing with {:locale=>[:en], :formats=>[:json], :variants=>[], :handlers=>[:raw, :erb, :html, :builder, :ruby]}.") end def test_render_file_with_locale assert_equal "

Kein Kommentar

", @view.render(file: "comments/empty", locale: [:de]) assert_equal "

Kein Kommentar

", @view.render(file: "comments/empty", locale: :de) end def test_render_template_with_locale assert_equal "

Kein Kommentar

", @view.render(template: "comments/empty", locale: [:de]) end def test_render_file_with_handlers assert_equal "

No Comment

\n", @view.render(file: "comments/empty", handlers: [:builder]) assert_equal "

No Comment

\n", @view.render(file: "comments/empty", handlers: :builder) end def test_render_template_with_handlers assert_equal "

No Comment

\n", @view.render(template: "comments/empty", handlers: [:builder]) end def test_render_raw_template_with_handlers assert_equal "<%= hello_world %>\n", @view.render(template: "plain_text") end def test_render_raw_template_with_quotes assert_equal %q;Here are some characters: !@#$%^&*()-="'}{`; + "\n", @view.render(template: "plain_text_with_characters") end def test_render_raw_is_html_safe_and_does_not_escape_output buffer = ActiveSupport::SafeBuffer.new buffer << @view.render(file: "plain_text") assert_equal true, buffer.html_safe? assert_equal buffer, "<%= hello_world %>\n" end def test_render_ruby_template_with_handlers assert_equal "Hello from Ruby code", @view.render(template: "ruby_template") end def test_render_ruby_template_inline assert_equal "4", @view.render(inline: "(2**2).to_s", type: :ruby) end def test_render_file_with_localization_on_context_level old_locale, @view.locale = @view.locale, :da assert_equal "Hey verden", @view.render(file: "test/hello_world") ensure @view.locale = old_locale end def test_render_file_with_dashed_locale old_locale, @view.locale = @view.locale, :"pt-BR" assert_equal "Ola mundo", @view.render(file: "test/hello_world") ensure @view.locale = old_locale end def test_render_file_at_top_level assert_equal "Elastica", @view.render(file: "/shared") end def test_render_file_with_full_path template_path = File.join(File.dirname(__FILE__), "../fixtures/test/hello_world") assert_equal "Hello world!", @view.render(file: template_path) end def test_render_file_with_instance_variables assert_equal "The secret is in the sauce\n", @view.render(file: "test/render_file_with_ivar") end def test_render_file_with_locals locals = { secret: "in the sauce" } assert_equal "The secret is in the sauce\n", @view.render(file: "test/render_file_with_locals", locals: locals) end def test_render_file_not_using_full_path_with_dot_in_path assert_equal "The secret is in the sauce\n", @view.render(file: "test/dot.directory/render_file_with_ivar") end def test_render_partial_from_default assert_equal "only partial", @view.render("test/partial_only") end def test_render_outside_path assert File.exist?(File.join(File.dirname(__FILE__), "../../test/abstract_unit.rb")) assert_raises ActionView::MissingTemplate do @view.render(template: "../\\../test/abstract_unit.rb") end end def test_render_partial assert_equal "only partial", @view.render(partial: "test/partial_only") end def test_render_partial_with_format assert_equal "partial html", @view.render(partial: "test/partial") end def test_render_partial_with_selected_format assert_equal "partial html", @view.render(partial: "test/partial", formats: :html) assert_equal "partial js", @view.render(partial: "test/partial", formats: [:js]) end def test_render_partial_at_top_level # file fixtures/_top_level_partial_only (not fixtures/test) assert_equal "top level partial", @view.render(partial: "/top_level_partial_only") end def test_render_partial_with_format_at_top_level # file fixtures/_top_level_partial.html (not fixtures/test, with format extension) assert_equal "top level partial html", @view.render(partial: "/top_level_partial") end def test_render_partial_with_locals assert_equal "5", @view.render(partial: "test/counter", locals: { counter_counter: 5 }) end def test_render_partial_with_locals_from_default assert_equal "only partial", @view.render("test/partial_only", counter_counter: 5) end def test_render_partial_with_number assert_nothing_raised { @view.render(partial: "test/200") } end def test_render_partial_with_missing_filename assert_raises(ActionView::MissingTemplate) { @view.render(partial: "test/") } end def test_render_partial_with_incompatible_object e = assert_raises(ArgumentError) { @view.render(partial: nil) } assert_equal "'#{nil.inspect}' is not an ActiveModel-compatible object. It must implement :to_partial_path.", e.message end def test_render_partial_starting_with_a_capital assert_nothing_raised { @view.render(partial: "test/FooBar") } end def test_render_partial_with_hyphen assert_nothing_raised { @view.render(partial: "test/a-in") } end def test_render_partial_with_unicode_text assert_nothing_raised { @view.render(partial: "test/🍣") } end def test_render_partial_with_invalid_option_as e = assert_raises(ArgumentError) { @view.render(partial: "test/partial_only", as: "a-in") } assert_equal "The value (a-in) of the option `as` is not a valid Ruby identifier; " + "make sure it starts with lowercase letter, " + "and is followed by any combination of letters, numbers and underscores.", e.message end def test_render_partial_with_hyphen_and_invalid_option_as e = assert_raises(ArgumentError) { @view.render(partial: "test/a-in", as: "a-in") } assert_equal "The value (a-in) of the option `as` is not a valid Ruby identifier; " + "make sure it starts with lowercase letter, " + "and is followed by any combination of letters, numbers and underscores.", e.message end def test_render_partial_with_errors e = assert_raises(ActionView::Template::Error) { @view.render(partial: "test/raise") } assert_match %r!method.*doesnt_exist!, e.message assert_equal "", e.sub_template_message assert_equal "1", e.line_number assert_equal "1: <%= doesnt_exist %>", e.annoted_source_code[0].strip assert_equal File.expand_path("#{FIXTURE_LOAD_PATH}/test/_raise.html.erb"), e.file_name end def test_render_error_indentation e = assert_raises(ActionView::Template::Error) { @view.render(partial: "test/raise_indentation") } error_lines = e.annoted_source_code assert_match %r!error\shere!, e.message assert_equal "11", e.line_number assert_equal " 9:

Ninth paragraph

", error_lines.second assert_equal " 10:

Tenth paragraph

", error_lines.third end def test_render_sub_template_with_errors e = assert_raises(ActionView::Template::Error) { @view.render(template: "test/sub_template_raise") } assert_match %r!method.*doesnt_exist!, e.message assert_equal "Trace of template inclusion: #{File.expand_path("#{FIXTURE_LOAD_PATH}/test/sub_template_raise.html.erb")}", e.sub_template_message assert_equal "1", e.line_number assert_equal File.expand_path("#{FIXTURE_LOAD_PATH}/test/_raise.html.erb"), e.file_name end def test_render_file_with_errors e = assert_raises(ActionView::Template::Error) { @view.render(file: File.expand_path("test/_raise", FIXTURE_LOAD_PATH)) } assert_match %r!method.*doesnt_exist!, e.message assert_equal "", e.sub_template_message assert_equal "1", e.line_number assert_equal "1: <%= doesnt_exist %>", e.annoted_source_code[0].strip assert_equal File.expand_path("#{FIXTURE_LOAD_PATH}/test/_raise.html.erb"), e.file_name end def test_render_object assert_equal "Hello: david", @view.render(partial: "test/customer", object: Customer.new("david")) assert_equal "FalseClass", @view.render(partial: "test/klass", object: false) assert_equal "NilClass", @view.render(partial: "test/klass", object: nil) end def test_render_object_with_array assert_equal "[1, 2, 3]", @view.render(partial: "test/object_inspector", object: [1, 2, 3]) end def test_render_partial_collection assert_equal "Hello: davidHello: mary", @view.render(partial: "test/customer", collection: [ Customer.new("david"), Customer.new("mary") ]) end def test_render_partial_collection_with_partial_name_containing_dot assert_equal "Hello: davidHello: mary", @view.render(partial: "test/customer.mobile", collection: [ Customer.new("david"), Customer.new("mary") ]) end def test_render_partial_collection_as_by_string assert_equal "david david davidmary mary mary", @view.render(partial: "test/customer_with_var", collection: [ Customer.new("david"), Customer.new("mary") ], as: "customer") end def test_render_partial_collection_as_by_symbol assert_equal "david david davidmary mary mary", @view.render(partial: "test/customer_with_var", collection: [ Customer.new("david"), Customer.new("mary") ], as: :customer) end def test_render_partial_collection_without_as assert_equal "local_inspector,local_inspector_counter,local_inspector_iteration", @view.render(partial: "test/local_inspector", collection: [ Customer.new("mary") ]) end def test_render_partial_with_empty_collection_should_return_nil assert_nil @view.render(partial: "test/customer", collection: []) end def test_render_partial_with_nil_collection_should_return_nil assert_nil @view.render(partial: "test/customer", collection: nil) end def test_render_partial_collection_for_non_array customers = Enumerator.new do |y| y.yield(Customer.new("david")) y.yield(Customer.new("mary")) end assert_equal "Hello: davidHello: mary", @view.render(partial: "test/customer", collection: customers) end def test_render_partial_without_object_does_not_put_partial_name_to_local_assigns assert_equal "false", @view.render(partial: "test/partial_name_in_local_assigns") end def test_render_partial_with_nil_object_puts_partial_name_to_local_assigns assert_equal "true", @view.render(partial: "test/partial_name_in_local_assigns", object: nil) end def test_render_partial_with_nil_values_in_collection assert_equal "Hello: davidHello: Anonymous", @view.render(partial: "test/customer", collection: [ Customer.new("david"), nil ]) end def test_render_partial_with_layout_using_collection_and_template assert_equal "Hello: AmazonHello: Yahoo", @view.render(partial: "test/customer", layout: "test/b_layout_for_partial", collection: [ Customer.new("Amazon"), Customer.new("Yahoo") ]) end def test_render_partial_with_layout_using_collection_and_template_makes_current_item_available_in_layout assert_equal 'Hello: AmazonHello: Yahoo', @view.render(partial: "test/customer", layout: "test/b_layout_for_partial_with_object", collection: [ Customer.new("Amazon"), Customer.new("Yahoo") ]) end def test_render_partial_with_layout_using_collection_and_template_makes_current_item_counter_available_in_layout assert_equal 'Hello: AmazonHello: Yahoo', @view.render(partial: "test/customer", layout: "test/b_layout_for_partial_with_object_counter", collection: [ Customer.new("Amazon"), Customer.new("Yahoo") ]) end def test_render_partial_with_layout_using_object_and_template_makes_object_available_in_layout assert_equal 'Hello: Amazon', @view.render(partial: "test/customer", layout: "test/b_layout_for_partial_with_object", object: Customer.new("Amazon")) end def test_render_partial_with_empty_array_should_return_nil assert_nil @view.render(partial: []) end def test_render_partial_using_string assert_equal "Hello: Anonymous", @controller_view.render("customer") end def test_render_partial_with_locals_using_string assert_equal "Hola: david", @controller_view.render("customer_greeting", greeting: "Hola", customer_greeting: Customer.new("david")) end def test_render_partial_with_object_uses_render_partial_path assert_equal "Hello: lifo", @controller_view.render(partial: Customer.new("lifo"), locals: { greeting: "Hello" }) end def test_render_partial_with_object_and_format_uses_render_partial_path assert_equal "Hellolifo", @controller_view.render(partial: Customer.new("lifo"), formats: :xml, locals: { greeting: "Hello" }) end def test_render_partial_using_object assert_equal "Hello: lifo", @controller_view.render(Customer.new("lifo"), greeting: "Hello") end def test_render_partial_using_collection customers = [ Customer.new("Amazon"), Customer.new("Yahoo") ] assert_equal "Hello: AmazonHello: Yahoo", @controller_view.render(customers, greeting: "Hello") end def test_render_partial_using_collection_without_path assert_equal "hi good customer: david0", @controller_view.render([ GoodCustomer.new("david") ], greeting: "hi") end def test_render_partial_without_object_or_collection_does_not_generate_partial_name_local_variable exception = assert_raises ActionView::Template::Error do @controller_view.render("partial_name_local_variable") end assert_instance_of NameError, exception.cause assert_equal :partial_name_local_variable, exception.cause.name end # TODO: The reason for this test is unclear, improve documentation def test_render_partial_and_fallback_to_layout assert_equal "Before (Josh)\n\nAfter", @view.render(partial: "test/layout_for_partial", locals: { name: "Josh" }) end # TODO: The reason for this test is unclear, improve documentation def test_render_missing_xml_partial_and_raise_missing_template @view.formats = [:xml] assert_raises(ActionView::MissingTemplate) { @view.render(partial: "test/layout_for_partial") } ensure @view.formats = nil end def test_render_layout_with_block_and_other_partial_inside render = @view.render(layout: "test/layout_with_partial_and_yield") { "Yield!" } assert_equal "Before\npartial html\nYield!\nAfter\n", render end def test_render_inline assert_equal "Hello, World!", @view.render(inline: "Hello, World!") end def test_render_inline_with_locals assert_equal "Hello, Josh!", @view.render(inline: "Hello, <%= name %>!", locals: { name: "Josh" }) end def test_render_fallbacks_to_erb_for_unknown_types assert_equal "Hello, World!", @view.render(inline: "Hello, World!", type: :bar) end CustomHandler = lambda do |template| "@output_buffer = ''\n" + "@output_buffer << 'source: #{template.source.inspect}'\n" end def test_render_inline_with_render_from_to_proc ActionView::Template.register_template_handler :ruby_handler, :source.to_proc assert_equal "3", @view.render(inline: "(1 + 2).to_s", type: :ruby_handler) ensure ActionView::Template.unregister_template_handler :ruby_handler end def test_render_inline_with_compilable_custom_type ActionView::Template.register_template_handler :foo, CustomHandler assert_equal 'source: "Hello, World!"', @view.render(inline: "Hello, World!", type: :foo) ensure ActionView::Template.unregister_template_handler :foo end def test_render_inline_with_locals_and_compilable_custom_type ActionView::Template.register_template_handler :foo, CustomHandler assert_equal 'source: "Hello, <%= name %>!"', @view.render(inline: "Hello, <%= name %>!", locals: { name: "Josh" }, type: :foo) ensure ActionView::Template.unregister_template_handler :foo end def test_render_body assert_equal "some body", @view.render(body: "some body") end def test_render_plain assert_equal "some plaintext", @view.render(plain: "some plaintext") end def test_render_knows_about_types_registered_when_extensions_are_checked_earlier_in_initialization ActionView::Template::Handlers.extensions ActionView::Template.register_template_handler :foo, CustomHandler assert_includes ActionView::Template::Handlers.extensions, :foo ensure ActionView::Template.unregister_template_handler :foo end def test_render_does_not_use_unregistered_extension_and_template_handler ActionView::Template.register_template_handler :foo, CustomHandler ActionView::Template.unregister_template_handler :foo assert_not ActionView::Template::Handlers.extensions.include?(:foo) assert_equal "Hello, World!", @view.render(inline: "Hello, World!", type: :foo) ensure ActionView::Template::Handlers.class_variable_get(:@@template_handlers).delete(:foo) end def test_render_ignores_templates_with_malformed_template_handlers ActiveSupport::Deprecation.silence do %w(malformed malformed.erb malformed.html.erb malformed.en.html.erb).each do |name| assert File.exist?(File.expand_path("#{FIXTURE_LOAD_PATH}/test/malformed/#{name}~")), "Malformed file (#{name}~) which should be ignored does not exists" assert_raises(ActionView::MissingTemplate) { @view.render(file: "test/malformed/#{name}") } end end end def test_render_with_layout assert_equal %(\nHello world!\n), @view.render(file: "test/hello_world", layout: "layouts/yield") end def test_render_with_layout_which_has_render_inline assert_equal %(welcome\nHello world!\n), @view.render(file: "test/hello_world", layout: "layouts/yield_with_render_inline_inside") end def test_render_with_layout_which_renders_another_partial assert_equal %(partial html\nHello world!\n), @view.render(file: "test/hello_world", layout: "layouts/yield_with_render_partial_inside") end def test_render_partial_with_html_only_extension assert_equal %(

partial html

\nHello world!\n), @view.render(file: "test/hello_world", layout: "layouts/render_partial_html") end def test_render_layout_with_block_and_yield assert_equal %(Content from block!\n), @view.render(layout: "layouts/yield_only") { "Content from block!" } end def test_render_layout_with_block_and_yield_with_params assert_equal %(Yield! Content from block!\n), @view.render(layout: "layouts/yield_with_params") { |param| "#{param} Content from block!" } end def test_render_layout_with_block_which_renders_another_partial_and_yields assert_equal %(partial html\nContent from block!\n), @view.render(layout: "layouts/partial_and_yield") { "Content from block!" } end def test_render_partial_and_layout_without_block_with_locals assert_equal %(Before (Foo!)\npartial html\nAfter), @view.render(partial: "test/partial", layout: "test/layout_for_partial", locals: { name: "Foo!" }) end def test_render_partial_and_layout_without_block_with_locals_and_rendering_another_partial assert_equal %(Before (Foo!)\npartial html\npartial with partial\n\nAfter), @view.render(partial: "test/partial_with_partial", layout: "test/layout_for_partial", locals: { name: "Foo!" }) end def test_render_partial_shortcut_with_block_content assert_equal %(Before (shortcut test)\nBefore\n\n Yielded: arg1/arg2\n\nAfter\nAfter), @view.render(partial: "test/partial_shortcut_with_block_content", layout: "test/layout_for_partial", locals: { name: "shortcut test" }) end def test_render_layout_with_a_nested_render_layout_call assert_equal %(Before (Foo!)\nBefore (Bar!)\npartial html\nAfter\npartial with layout\n\nAfter), @view.render(partial: "test/partial_with_layout", layout: "test/layout_for_partial", locals: { name: "Foo!" }) end def test_render_layout_with_a_nested_render_layout_call_using_block_with_render_partial assert_equal %(Before (Foo!)\nBefore (Bar!)\n\n partial html\n\nAfterpartial with layout\n\nAfter), @view.render(partial: "test/partial_with_layout_block_partial", layout: "test/layout_for_partial", locals: { name: "Foo!" }) end def test_render_layout_with_a_nested_render_layout_call_using_block_with_render_content assert_equal %(Before (Foo!)\nBefore (Bar!)\n\n Content from inside layout!\n\nAfterpartial with layout\n\nAfter), @view.render(partial: "test/partial_with_layout_block_content", layout: "test/layout_for_partial", locals: { name: "Foo!" }) end def test_render_partial_with_layout_raises_descriptive_error e = assert_raises(ActionView::MissingTemplate) { @view.render(partial: "test/partial", layout: true) } assert_match "Missing partial /_true with", e.message end def test_render_with_nested_layout assert_equal %(title\n\n
column
\n
content
\n), @view.render(file: "test/nested_layout", layout: "layouts/yield") end def test_render_with_file_in_layout assert_equal %(\ntitle\n\n), @view.render(file: "test/layout_render_file") end def test_render_layout_with_object assert_equal %(David), @view.render(file: "test/layout_render_object") end def test_render_with_passing_couple_extensions_to_one_register_template_handler_function_call ActionView::Template.register_template_handler :foo1, :foo2, CustomHandler assert_equal @view.render(inline: "Hello, World!", type: :foo1), @view.render(inline: "Hello, World!", type: :foo2) ensure ActionView::Template.unregister_template_handler :foo1, :foo2 end def test_render_throws_exception_when_no_extensions_passed_to_register_template_handler_function_call assert_raises(ArgumentError) { ActionView::Template.register_template_handler CustomHandler } end end class CachedViewRenderTest < ActiveSupport::TestCase include RenderTestCases # Ensure view path cache is primed def setup view_paths = ActionController::Base.view_paths assert_equal ActionView::OptimizedFileSystemResolver, view_paths.first.class setup_view(view_paths) end def teardown GC.start I18n.reload! end end class LazyViewRenderTest < ActiveSupport::TestCase include RenderTestCases # Test the same thing as above, but make sure the view path # is not eager loaded def setup path = ActionView::FileSystemResolver.new(FIXTURE_LOAD_PATH) view_paths = ActionView::PathSet.new([path]) assert_equal ActionView::FileSystemResolver.new(FIXTURE_LOAD_PATH), view_paths.first setup_view(view_paths) end def teardown GC.start I18n.reload! end def test_render_utf8_template_with_magic_comment with_external_encoding Encoding::ASCII_8BIT do result = @view.render(file: "test/utf8_magic", formats: [:html], layouts: "layouts/yield") assert_equal Encoding::UTF_8, result.encoding assert_equal "\nРусский \nтСкст\n\nUTF-8\nUTF-8\nUTF-8\n", result end end def test_render_utf8_template_with_default_external_encoding with_external_encoding Encoding::UTF_8 do result = @view.render(file: "test/utf8", formats: [:html], layouts: "layouts/yield") assert_equal Encoding::UTF_8, result.encoding assert_equal "Русский тСкст\n\nUTF-8\nUTF-8\nUTF-8\n", result end end def test_render_utf8_template_with_incompatible_external_encoding with_external_encoding Encoding::SHIFT_JIS do e = assert_raises(ActionView::Template::Error) { @view.render(file: "test/utf8", formats: [:html], layouts: "layouts/yield") } assert_match "Your template was not saved as valid Shift_JIS", e.cause.message end end def test_render_utf8_template_with_partial_with_incompatible_encoding with_external_encoding Encoding::SHIFT_JIS do e = assert_raises(ActionView::Template::Error) { @view.render(file: "test/utf8_magic_with_bare_partial", formats: [:html], layouts: "layouts/yield") } assert_match "Your template was not saved as valid Shift_JIS", e.cause.message end end def with_external_encoding(encoding) old = Encoding.default_external silence_warnings { Encoding.default_external = encoding } yield ensure silence_warnings { Encoding.default_external = old } end end class CachedCollectionViewRenderTest < ActiveSupport::TestCase class CachedCustomer < Customer; end include RenderTestCases # Ensure view path cache is primed setup do view_paths = ActionController::Base.view_paths assert_equal ActionView::OptimizedFileSystemResolver, view_paths.first.class ActionView::PartialRenderer.collection_cache = ActiveSupport::Cache::MemoryStore.new setup_view(view_paths) end teardown do GC.start I18n.reload! end test "collection caching does not cache by default" do customer = Customer.new("david", 1) key = cache_key(customer, "test/_customer") ActionView::PartialRenderer.collection_cache.write(key, "Cached") assert_not_equal "Cached", @view.render(partial: "test/customer", collection: [customer]) end test "collection caching with partial that doesn't use fragment caching" do customer = Customer.new("david", 1) key = cache_key(customer, "test/_customer") ActionView::PartialRenderer.collection_cache.write(key, "Cached") assert_equal "Cached", @view.render(partial: "test/customer", collection: [customer], cached: true) end test "collection caching with cached true" do customer = CachedCustomer.new("david", 1) key = cache_key(customer, "test/_cached_customer") ActionView::PartialRenderer.collection_cache.write(key, "Cached") assert_equal "Cached", @view.render(partial: "test/cached_customer", collection: [customer], cached: true) end private def cache_key(*names, virtual_path) digest = ActionView::Digestor.digest name: virtual_path, finder: @view.lookup_context, dependencies: [] @view.fragment_cache_key([ *names, digest ]) end end