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helpers_test.rb
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helpers_test.rb
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require File.dirname(__FILE__) + '/helper'
require 'date'
class HelpersTest < Test::Unit::TestCase
def test_default
assert true
end
describe 'status' do
setup do
mock_app {
get '/' do
status 207
nil
end
}
end
it 'sets the response status code' do
get '/'
assert_equal 207, response.status
end
end
describe 'body' do
it 'takes a block for defered body generation' do
mock_app {
get '/' do
body { 'Hello World' }
end
}
get '/'
assert_equal 'Hello World', body
end
it 'takes a String, Array, or other object responding to #each' do
mock_app {
get '/' do
body 'Hello World'
end
}
get '/'
assert_equal 'Hello World', body
end
end
describe 'redirect' do
it 'uses a 302 when only a path is given' do
mock_app {
get '/' do
redirect '/foo'
fail 'redirect should halt'
end
}
get '/'
assert_equal 302, status
assert_equal '', body
assert_equal 'http://example.org/foo', response['Location']
end
it 'uses the code given when specified' do
mock_app {
get '/' do
redirect '/foo', 301
fail 'redirect should halt'
end
}
get '/'
assert_equal 301, status
assert_equal '', body
assert_equal 'http://example.org/foo', response['Location']
end
it 'redirects back to request.referer when passed back' do
mock_app {
get '/try_redirect' do
redirect back
end
}
request = Rack::MockRequest.new(@app)
response = request.get('/try_redirect', 'HTTP_REFERER' => '/foo')
assert_equal 302, response.status
assert_equal 'http://example.org/foo', response['Location']
end
it 'redirects using a non-standard HTTP port' do
mock_app {
get '/' do
redirect '/foo'
end
}
request = Rack::MockRequest.new(@app)
response = request.get('/', 'SERVER_PORT' => '81')
assert_equal 'http://example.org:81/foo', response['Location']
end
it 'redirects using a non-standard HTTPS port' do
mock_app {
get '/' do
redirect '/foo'
end
}
request = Rack::MockRequest.new(@app)
response = request.get('/', 'SERVER_PORT' => '444')
assert_equal 'http://example.org:444/foo', response['Location']
end
end
describe 'error' do
it 'sets a status code and halts' do
mock_app {
get '/' do
error 501
fail 'error should halt'
end
}
get '/'
assert_equal 501, status
assert_equal '', body
end
it 'takes an optional body' do
mock_app {
get '/' do
error 501, 'FAIL'
fail 'error should halt'
end
}
get '/'
assert_equal 501, status
assert_equal 'FAIL', body
end
it 'uses a 500 status code when first argument is a body' do
mock_app {
get '/' do
error 'FAIL'
fail 'error should halt'
end
}
get '/'
assert_equal 500, status
assert_equal 'FAIL', body
end
end
describe 'not_found' do
it 'halts with a 404 status' do
mock_app {
get '/' do
not_found
fail 'not_found should halt'
end
}
get '/'
assert_equal 404, status
assert_equal '', body
end
it 'does not set a X-Cascade header' do
mock_app {
get '/' do
not_found
fail 'not_found should halt'
end
}
get '/'
assert_equal 404, status
assert_equal nil, response.headers['X-Cascade']
end
end
describe 'headers' do
it 'sets headers on the response object when given a Hash' do
mock_app {
get '/' do
headers 'X-Foo' => 'bar', 'X-Baz' => 'bling'
'kthx'
end
}
get '/'
assert ok?
assert_equal 'bar', response['X-Foo']
assert_equal 'bling', response['X-Baz']
assert_equal 'kthx', body
end
it 'returns the response headers hash when no hash provided' do
mock_app {
get '/' do
headers['X-Foo'] = 'bar'
'kthx'
end
}
get '/'
assert ok?
assert_equal 'bar', response['X-Foo']
end
end
describe 'session' do
it 'uses the existing rack.session' do
mock_app {
get '/' do
session[:foo]
end
}
get '/', {}, { 'rack.session' => { :foo => 'bar' } }
assert_equal 'bar', body
end
it 'creates a new session when none provided' do
mock_app {
enable :sessions
get '/' do
assert session.empty?
session[:foo] = 'bar'
redirect '/hi'
end
get '/hi' do
"hi #{session[:foo]}"
end
}
get '/'
follow_redirect!
assert_equal 'hi bar', body
end
end
describe 'mime_type' do
include Sinatra::Helpers
it "looks up mime types in Rack's MIME registry" do
Rack::Mime::MIME_TYPES['.foo'] = 'application/foo'
assert_equal 'application/foo', mime_type('foo')
assert_equal 'application/foo', mime_type('.foo')
assert_equal 'application/foo', mime_type(:foo)
end
it 'returns nil when given nil' do
assert mime_type(nil).nil?
end
it 'returns nil when media type not registered' do
assert mime_type(:bizzle).nil?
end
it 'returns the argument when given a media type string' do
assert_equal 'text/plain', mime_type('text/plain')
end
end
test 'Base.mime_type registers mime type' do
mock_app {
mime_type :foo, 'application/foo'
get '/' do
"foo is #{mime_type(:foo)}"
end
}
get '/'
assert_equal 'foo is application/foo', body
end
describe 'content_type' do
it 'sets the Content-Type header' do
mock_app {
get '/' do
content_type 'text/plain'
'Hello World'
end
}
get '/'
assert_equal 'text/plain;charset=utf-8', response['Content-Type']
assert_equal 'Hello World', body
end
it 'takes media type parameters (like charset=)' do
mock_app {
get '/' do
content_type 'text/html', :charset => 'latin1'
"<h1>Hello, World</h1>"
end
}
get '/'
assert ok?
assert_equal 'text/html;charset=latin1', response['Content-Type']
assert_equal "<h1>Hello, World</h1>", body
end
it "looks up symbols in Rack's mime types dictionary" do
Rack::Mime::MIME_TYPES['.foo'] = 'application/foo'
mock_app {
get '/foo.xml' do
content_type :foo
"I AM FOO"
end
}
get '/foo.xml'
assert ok?
assert_equal 'application/foo;charset=utf-8', response['Content-Type']
assert_equal 'I AM FOO', body
end
it 'fails when no mime type is registered for the argument provided' do
mock_app {
get '/foo.xml' do
content_type :bizzle
"I AM FOO"
end
}
assert_raise(RuntimeError) { get '/foo.xml' }
end
end
describe 'send_file' do
setup do
@file = File.dirname(__FILE__) + '/file.txt'
File.open(@file, 'wb') { |io| io.write('Hello World') }
end
def teardown
File.unlink @file
@file = nil
end
def send_file_app(opts={})
path = @file
mock_app {
get '/file.txt' do
send_file path, opts
end
}
end
it "sends the contents of the file" do
send_file_app
get '/file.txt'
assert ok?
assert_equal 'Hello World', body
end
it 'sets the Content-Type response header if a mime-type can be located' do
send_file_app
get '/file.txt'
assert_equal 'text/plain;charset=utf-8', response['Content-Type']
end
it 'sets the Content-Type response header if type option is set to a file extesion' do
send_file_app :type => 'html'
get '/file.txt'
assert_equal 'text/html;charset=utf-8', response['Content-Type']
end
it 'sets the Content-Type response header if type option is set to a mime type' do
send_file_app :type => 'application/octet-stream'
get '/file.txt'
assert_equal 'application/octet-stream;charset=utf-8', response['Content-Type']
end
it 'sets the Content-Length response header' do
send_file_app
get '/file.txt'
assert_equal 'Hello World'.length.to_s, response['Content-Length']
end
it 'sets the Last-Modified response header' do
send_file_app
get '/file.txt'
assert_equal File.mtime(@file).httpdate, response['Last-Modified']
end
it "returns a 404 when not found" do
mock_app {
get '/' do
send_file 'this-file-does-not-exist.txt'
end
}
get '/'
assert not_found?
end
it "does not set the Content-Disposition header by default" do
send_file_app
get '/file.txt'
assert_nil response['Content-Disposition']
end
it "sets the Content-Disposition header when :disposition set to 'attachment'" do
send_file_app :disposition => 'attachment'
get '/file.txt'
assert_equal 'attachment; filename="file.txt"', response['Content-Disposition']
end
it "sets the Content-Disposition header when :filename provided" do
send_file_app :filename => 'foo.txt'
get '/file.txt'
assert_equal 'attachment; filename="foo.txt"', response['Content-Disposition']
end
end
describe 'cache_control' do
setup do
mock_app {
get '/' do
cache_control :public, :no_cache, :max_age => 60.0
'Hello World'
end
}
end
it 'sets the Cache-Control header' do
get '/'
assert_equal ['public', 'no-cache', 'max-age=60'], response['Cache-Control'].split(', ')
end
end
describe 'expires' do
setup do
mock_app {
get '/' do
expires 60, :public, :no_cache
'Hello World'
end
}
end
it 'sets the Cache-Control header' do
get '/'
assert_equal ['public', 'no-cache', 'max-age=60'], response['Cache-Control'].split(', ')
end
it 'sets the Expires header' do
get '/'
assert_not_nil response['Expires']
end
end
describe 'last_modified' do
it 'ignores nil' do
mock_app do
get '/' do last_modified nil; 200; end
end
get '/'
assert ! response['Last-Modified']
end
[Time, DateTime].each do |klass|
describe "with #{klass.name}" do
setup do
last_modified_time = klass.now
mock_app do
get '/' do
last_modified last_modified_time
'Boo!'
end
end
@last_modified_time = Time.parse last_modified_time.to_s
end
# fixes strange missing test error when running complete test suite.
it("does not complain about missing tests") { }
context "when there's no If-Modified-Since header" do
it 'sets the Last-Modified header to a valid RFC 2616 date value' do
get '/'
assert_equal @last_modified_time.httpdate, response['Last-Modified']
end
it 'conditional GET misses and returns a body' do
get '/'
assert_equal 200, status
assert_equal 'Boo!', body
end
end
context "when there's an invalid If-Modified-Since header" do
it 'sets the Last-Modified header to a valid RFC 2616 date value' do
get '/', {}, { 'HTTP_IF_MODIFIED_SINCE' => 'a really weird date' }
assert_equal @last_modified_time.httpdate, response['Last-Modified']
end
it 'conditional GET misses and returns a body' do
get '/', {}, { 'HTTP_IF_MODIFIED_SINCE' => 'a really weird date' }
assert_equal 200, status
assert_equal 'Boo!', body
end
end
context "when the resource has been modified since the If-Modified-Since header date" do
it 'sets the Last-Modified header to a valid RFC 2616 date value' do
get '/', {}, { 'HTTP_IF_MODIFIED_SINCE' => (@last_modified_time - 1).httpdate }
assert_equal @last_modified_time.httpdate, response['Last-Modified']
end
it 'conditional GET misses and returns a body' do
get '/', {}, { 'HTTP_IF_MODIFIED_SINCE' => (@last_modified_time - 1).httpdate }
assert_equal 200, status
assert_equal 'Boo!', body
end
it 'does not rely on string comparison' do
mock_app do
get '/compare' do
last_modified "Mon, 18 Oct 2010 20:57:11 GMT"
"foo"
end
end
get '/compare', {}, { 'HTTP_IF_MODIFIED_SINCE' => 'Sun, 26 Sep 2010 23:43:52 GMT' }
assert_equal 200, status
assert_equal 'foo', body
end
end
context "when the resource has been modified on the exact If-Modified-Since header date" do
it 'sets the Last-Modified header to a valid RFC 2616 date value' do
get '/', {}, { 'HTTP_IF_MODIFIED_SINCE' => @last_modified_time.httpdate }
assert_equal @last_modified_time.httpdate, response['Last-Modified']
end
it 'conditional GET matches and halts' do
get '/', {}, { 'HTTP_IF_MODIFIED_SINCE' => @last_modified_time.httpdate }
assert_equal 304, status
assert_equal '', body
end
end
context "when the resource hasn't been modified since the If-Modified-Since header date" do
it 'sets the Last-Modified header to a valid RFC 2616 date value' do
get '/', {}, { 'HTTP_IF_MODIFIED_SINCE' => (@last_modified_time + 1).httpdate }
assert_equal @last_modified_time.httpdate, response['Last-Modified']
end
it 'conditional GET matches and halts' do
get '/', {}, { 'HTTP_IF_MODIFIED_SINCE' => (@last_modified_time + 1).httpdate }
assert_equal 304, status
assert_equal '', body
end
end
end
end
end
describe 'etag' do
setup do
mock_app {
get '/' do
body { 'Hello World' }
etag 'FOO'
'Boo!'
end
}
end
it 'sets the ETag header' do
get '/'
assert_equal '"FOO"', response['ETag']
end
it 'returns a body when conditional get misses' do
get '/'
assert_equal 200, status
assert_equal 'Boo!', body
end
it 'halts when a conditional GET matches' do
get '/', {}, { 'HTTP_IF_NONE_MATCH' => '"FOO"' }
assert_equal 304, status
assert_equal '', body
end
it 'should handle multiple ETag values in If-None-Match header' do
get '/', {}, { 'HTTP_IF_NONE_MATCH' => '"BAR", *' }
assert_equal 304, status
assert_equal '', body
end
it 'uses a weak etag with the :weak option' do
mock_app {
get '/' do
etag 'FOO', :weak
"that's weak, dude."
end
}
get '/'
assert_equal 'W/"FOO"', response['ETag']
end
end
describe 'back' do
it "makes redirecting back pretty" do
mock_app {
get '/foo' do
redirect back
end
}
get '/foo', {}, 'HTTP_REFERER' => 'http://github.com'
assert redirect?
assert_equal "http://github.com", response.location
end
end
module ::HelperOne; def one; '1'; end; end
module ::HelperTwo; def two; '2'; end; end
describe 'Adding new helpers' do
it 'takes a list of modules to mix into the app' do
mock_app {
helpers ::HelperOne, ::HelperTwo
get '/one' do
one
end
get '/two' do
two
end
}
get '/one'
assert_equal '1', body
get '/two'
assert_equal '2', body
end
it 'takes a block to mix into the app' do
mock_app {
helpers do
def foo
'foo'
end
end
get '/' do
foo
end
}
get '/'
assert_equal 'foo', body
end
it 'evaluates the block in class context so that methods can be aliased' do
mock_app {
helpers do
alias_method :h, :escape_html
end
get '/' do
h('42 < 43')
end
}
get '/'
assert ok?
assert_equal '42 < 43', body
end
end
end