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require 'contest'
require 'tilt'
begin
require 'yajl'
class YajlTemplateTest < Test::Unit::TestCase
test "is registered for '.yajl' files" do
assert_equal Tilt::YajlTemplate, Tilt['test.yajl']
end
test "compiles and evaluates the template on #render" do
template = Tilt::YajlTemplate.new { "json = { :integer => 3, :string => 'hello' }" }
output = template.render
result = Yajl::Parser.parse(output)
expect = {"integer" => 3,"string" => "hello"}
assert_equal expect, result
end
test "can be rendered more than once" do
template = Tilt::YajlTemplate.new { "json = { :integer => 3, :string => 'hello' }" }
expect = {"integer" => 3,"string" => "hello"}
3.times do
output = template.render
result = Yajl::Parser.parse(output)
assert_equal expect, result
end
end
test "evaluating ruby code" do
template = Tilt::YajlTemplate.new { "json = { :integer => (3 * 2) }" }
assert_equal '{"integer":6}', template.render
end
test "evaluating in an object scope" do
template = Tilt::YajlTemplate.new { "json = { :string => 'Hey ' + @name + '!' }" }
scope = Object.new
scope.instance_variable_set :@name, 'Joe'
assert_equal '{"string":"Hey Joe!"}', template.render(scope)
end
test "passing locals" do
template = Tilt::YajlTemplate.new { "json = { :string => 'Hey ' + name + '!' }" }
assert_equal '{"string":"Hey Joe!"}', template.render(Object.new, :name => 'Joe')
end
test "passing a block for yield" do
template = Tilt::YajlTemplate.new { "json = { :string => 'Hey ' + yield + '!' }" }
assert_equal '{"string":"Hey Joe!"}', template.render { 'Joe' }
assert_equal '{"string":"Hey Moe!"}', template.render { 'Moe' }
end
test "template multiline" do
template = Tilt::YajlTemplate.new { %Q{
json = {
:string => "hello"
}
} }
assert_equal '{"string":"hello"}', template.render
end
test "template can reuse existing json buffer" do
template = Tilt::YajlTemplate.new { "json.merge! :string => 'hello'" }
assert_equal '{"string":"hello"}', template.render
end
test "template can end with any statement" do
template = Tilt::YajlTemplate.new { %Q{
json = {
:string => "hello"
}
four = 2 * 2
json[:integer] = four
nil
} }
result = template.render
assert( (result == '{"string":"hello","integer":4}') || (result == '{"integer":4,"string":"hello"}') )
end
test "option callback" do
options = { :callback => 'foo' }
template = Tilt::YajlTemplate.new(nil, options) { "json = { :string => 'hello' }" }
assert_equal 'foo({"string":"hello"});', template.render
end
test "option variable" do
options = { :variable => 'output' }
template = Tilt::YajlTemplate.new(nil, options) { "json = { :string => 'hello' }" }
assert_equal 'var output = {"string":"hello"};', template.render
end
test "option callback and variable" do
options = { :callback => 'foo', :variable => 'output' }
template = Tilt::YajlTemplate.new(nil, options) { "json = { :string => 'hello' }" }
assert_equal 'var output = {"string":"hello"}; foo(output);', template.render
end
end
rescue LoadError
warn "Tilt::YajlTemplateTest (disabled)"
end