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-rw-r--r--actionview/test/template/lookup_context_test.rb268
1 files changed, 268 insertions, 0 deletions
diff --git a/actionview/test/template/lookup_context_test.rb b/actionview/test/template/lookup_context_test.rb
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+++ b/actionview/test/template/lookup_context_test.rb
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+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 "allows to override default_formats with ActionView::Base.default_formats" do
+ begin
+ formats = ActionView::Base.default_formats
+ ActionView::Base.default_formats = [:foo, :bar]
+
+ assert_equal [:foo, :bar], ActionView::LookupContext.new([]).default_formats
+ ensure
+ ActionView::Base.default_formats = formats
+ end
+ 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 variants" do
+ @lookup_context.variants = [:mobile]
+ assert_equal [:mobile], @lookup_context.variants
+ 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 = ActionView::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)])
+ ActionView::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=>[], :variants=>[], :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