require "abstract_unit" require "abstract_controller/rendering" class LookupContextTest < ActiveSupport::TestCase def setup @lookup_context = ActionView::LookupContext.new(FIXTURE_LOAD_PATH, {}) ActionView::LookupContext::DetailsKey.clear end def teardown I18n.locale = :en end test "process view paths on initialization" do assert_kind_of ActionView::PathSet, @lookup_context.view_paths end test "normalizes details on initialization" do assert_equal Mime::SET, @lookup_context.formats assert_equal :en, @lookup_context.locale end test "allows me to freeze and retrieve frozen formats" do @lookup_context.formats.freeze assert @lookup_context.formats.frozen? end test "provides getters and setters for formats" do @lookup_context.formats = [:html] assert_equal [:html], @lookup_context.formats end test "handles */* formats" do @lookup_context.formats = ["*/*"] assert_equal Mime::SET, @lookup_context.formats end test "handles explicitly defined */* formats fallback to :js" do @lookup_context.formats = [:js, Mime::ALL] assert_equal [:js, *Mime::SET.symbols], @lookup_context.formats end test "adds :html fallback to :js formats" do @lookup_context.formats = [:js] assert_equal [:js, :html], @lookup_context.formats end test "provides getters and setters for locale" do @lookup_context.locale = :pt assert_equal :pt, @lookup_context.locale end test "changing lookup_context locale, changes I18n.locale" do @lookup_context.locale = :pt assert_equal :pt, I18n.locale end test "delegates changing the locale to the I18n configuration object if it contains a lookup_context object" do begin I18n.config = AbstractController::I18nProxy.new(I18n.config, @lookup_context) @lookup_context.locale = :pt assert_equal :pt, I18n.locale assert_equal :pt, @lookup_context.locale ensure I18n.config = I18n.config.original_config end assert_equal :pt, I18n.locale end test "find templates using the given view paths and configured details" do template = @lookup_context.find("hello_world", %w(test)) assert_equal "Hello world!", template.source @lookup_context.locale = :da template = @lookup_context.find("hello_world", %w(test)) assert_equal "Hey verden", template.source end test "found templates respects given formats if one cannot be found from template or handler" do ActionView::Template::Handlers::Builder.expects(:default_format).returns(nil) @lookup_context.formats = [:text] template = @lookup_context.find("hello", %w(test)) assert_equal [:text], template.formats end test "adds fallbacks to view paths when required" do assert_equal 1, @lookup_context.view_paths.size @lookup_context.with_fallbacks do assert_equal 3, @lookup_context.view_paths.size assert @lookup_context.view_paths.include?(ActionView::FallbackFileSystemResolver.new("")) assert @lookup_context.view_paths.include?(ActionView::FallbackFileSystemResolver.new("/")) end end test "add fallbacks just once in nested fallbacks calls" do @lookup_context.with_fallbacks do @lookup_context.with_fallbacks do assert_equal 3, @lookup_context.view_paths.size end end end test "generates a new details key for each details hash" do keys = [] keys << @lookup_context.details_key assert_equal 1, keys.uniq.size @lookup_context.locale = :da keys << @lookup_context.details_key assert_equal 2, keys.uniq.size @lookup_context.locale = :en keys << @lookup_context.details_key assert_equal 2, keys.uniq.size @lookup_context.formats = [:html] keys << @lookup_context.details_key assert_equal 3, keys.uniq.size @lookup_context.formats = nil keys << @lookup_context.details_key assert_equal 3, keys.uniq.size end test "gives the key forward to the resolver, so it can be used as cache key" do @lookup_context.view_paths = ActionView::FixtureResolver.new("test/_foo.erb" => "Foo") template = @lookup_context.find("foo", %w(test), true) assert_equal "Foo", template.source # Now we are going to change the template, but it won't change the returned template # since we will hit the cache. @lookup_context.view_paths.first.hash["test/_foo.erb"] = "Bar" template = @lookup_context.find("foo", %w(test), true) assert_equal "Foo", template.source # This time we will change the locale. The updated template should be picked since # lookup_context generated a new key after we changed the locale. @lookup_context.locale = :da template = @lookup_context.find("foo", %w(test), true) assert_equal "Bar", template.source # Now we will change back the locale and it will still pick the old template. # This is expected because lookup_context will reuse the previous key for :en locale. @lookup_context.locale = :en template = @lookup_context.find("foo", %w(test), true) assert_equal "Foo", template.source # Finally, we can expire the cache. And the expected template will be used. @lookup_context.view_paths.first.clear_cache template = @lookup_context.find("foo", %w(test), true) assert_equal "Bar", template.source end test "can disable the cache on demand" do @lookup_context.view_paths = ActionView::FixtureResolver.new("test/_foo.erb" => "Foo") old_template = @lookup_context.find("foo", %w(test), true) template = @lookup_context.find("foo", %w(test), true) assert_equal template, old_template assert @lookup_context.cache template = @lookup_context.disable_cache do assert !@lookup_context.cache @lookup_context.find("foo", %w(test), true) end assert @lookup_context.cache assert_not_equal template, old_template end test "responds to #prefixes" do assert_equal [], @lookup_context.prefixes @lookup_context.prefixes = ["foo"] assert_equal ["foo"], @lookup_context.prefixes end end class LookupContextWithFalseCaching < ActiveSupport::TestCase def setup @resolver = ActionView::FixtureResolver.new("test/_foo.erb" => ["Foo", Time.utc(2000)]) @resolver.stubs(:caching?).returns(false) @lookup_context = ActionView::LookupContext.new(@resolver, {}) end test "templates are always found in the resolver but timestamp is checked before being compiled" do template = @lookup_context.find("foo", %w(test), true) assert_equal "Foo", template.source # Now we are going to change the template, but it won't change the returned template # since the timestamp is the same. @resolver.hash["test/_foo.erb"][0] = "Bar" template = @lookup_context.find("foo", %w(test), true) assert_equal "Foo", template.source # Now update the timestamp. @resolver.hash["test/_foo.erb"][1] = Time.now.utc template = @lookup_context.find("foo", %w(test), true) assert_equal "Bar", template.source end test "if no template was found in the second lookup, with no cache, raise error" do template = @lookup_context.find("foo", %w(test), true) assert_equal "Foo", template.source @resolver.hash.clear assert_raise ActionView::MissingTemplate do @lookup_context.find("foo", %w(test), true) end end test "if no template was cached in the first lookup, retrieval should work in the second call" do @resolver.hash.clear assert_raise ActionView::MissingTemplate do @lookup_context.find("foo", %w(test), true) end @resolver.hash["test/_foo.erb"] = ["Foo", Time.utc(2000)] template = @lookup_context.find("foo", %w(test), true) assert_equal "Foo", template.source end end class TestMissingTemplate < ActiveSupport::TestCase def setup @lookup_context = ActionView::LookupContext.new("/Path/to/views", {}) end test "if no template was found we get a helpful error message including the inheritance chain" do e = assert_raise ActionView::MissingTemplate do @lookup_context.find("foo", %w(parent child)) end assert_match %r{Missing template parent/foo, child/foo with .* Searched in:\n \* "/Path/to/views"\n}, e.message end test "if no partial was found we get a helpful error message including the inheritance chain" do e = assert_raise ActionView::MissingTemplate do @lookup_context.find("foo", %w(parent child), true) end assert_match %r{Missing partial parent/foo, child/foo with .* Searched in:\n \* "/Path/to/views"\n}, e.message end test "if a single prefix is passed as a string and the lookup fails, MissingTemplate accepts it" do e = assert_raise ActionView::MissingTemplate do details = {:handlers=>[], :formats=>[], :locale=>[]} @lookup_context.view_paths.find("foo", "parent", true, details) end assert_match %r{Missing partial parent/foo with .* Searched in:\n \* "/Path/to/views"\n}, e.message end end