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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
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