require 'test_helper'
class HandlerTest < ActiveSupport::TestCase
DEFAULT_DOCTYPE = ""
A_LINK = %Q(link)
class LookupContext
def disable_cache
yield
end
def find_template(*args)
end
attr_accessor :formats
end
class Context
include ActionView::Context
include ActionView::Helpers::TagHelper
def initialize(*args)
@output_buffer = "original"
@virtual_path = nil
end
def lookup_context
@lookup_context ||= LookupContext.new
end
def concat(string)
@output_buffer << string
end
def capture(&block)
block.call
end
def assigns
{}
end
def link_helper
A_LINK.html_safe
end
end
def new_template(body = " h1 'Hello' ", details = { format: :html })
ActionView::Template.new(body, "hello template", details.fetch(:handler) { ExpressTemplates::Template::Handler.new }, {:virtual_path => "hello"}.merge!(details))
end
def render(locals = {})
output = @template.render(@context, locals)
output
end
def with_doctype(body, alt_doctype = nil)
"#{alt_doctype||DEFAULT_DOCTYPE}\n#{body}"
end
def setup
controller = Object.new
class << controller
def view_context_class ; Context ; end
end
@context = Context.new(nil, {}, controller)
end
test "our handler is registered" do
handler = ActionView::Template.registered_template_handler("et")
assert_equal ExpressTemplates::Template::Handler, handler
end
test "html generates Hello
by default" do
@template = new_template
result = render
assert_equal "Hello
\n", result
end
test "nesting elements with ruby block structure" do
@template = new_template("ul { li 'one' ; li 'two' ; li 'three' }")
assert_equal "\n", render
end
# TODO?: Does not work with arbre
# test "class names" do
# @template = new_template("p.whatever.another 'Lorum Ipsum' ")
# assert_equal "Lorum Ipsum
\n", render
# end
test "string in block works" do
@template = new_template "h1 { 'foo' } "
assert_equal "foo
\n", render
end
# test "real document has doctype and newline" do
# @template = new_template("html { body { h1 \"hello\" } }")
# assert_equal with_doctype("\n \n hello
\n \n\n"), render
# end
test "other attributes" do
@template = new_template("para('Lorum Ipsum', style: 'align: right;')")
assert_equal "Lorum Ipsum
\n", render
end
test "locals work" do
@template = new_template "h1 { my_title }"
@template.locals = [:my_title]
assert_equal "Foo
\n", render(my_title: 'Foo')
end
test "helpers returning html when alone in a block" do
@template = new_template("li { link_helper } ")
assert_equal "#{A_LINK}\n", render
end
test "helpers returning html work in sequence within a block" do
@template = new_template("li { link_helper ; link_helper } ")
assert_equal "\n#{A_LINK}#{A_LINK}\n", render
end
test "raises warning if template has conditional logic" do
temp = "dd(class: 'date') {
if blog_post.publish_at
blog_post.publish_at
else
link_to('Edit', '#'')
end
}"
keywords = %w(if unless until case for do loop while)
tokens = []
if Ripper.lex(temp).select do |element|
element[1]==:on_kw
end.each { |match| tokens.push(match) if keywords.include? match[2] }
tokens.each do |first|
_, @err = capture_io do
warn 'foo'
end
end
end
assert_equal @err, "foo\n"
end
end