sinatra-contrib tests now pass

Multiple response header values are encoded using an Array instead of
newlines: https://github.com/rack/rack/blob/v3.0.3/UPGRADE-GUIDE.md#multiple-response-header-values-are-encoded-using-an-array

Rack 3 does not remove cookies from the internal storage (because it
doesn't make much sense), see rack/rack#1844, rack/rack#1840

sinatra-contrib/lib/sinatra/cookies.rb

@@ -60,7 +60,7 @@ class Jar
       attr_reader :options
 
       def initialize(app)
-        @response_string = nil
+        @response_array  = nil
         @response_hash   = {}
         @response        = app.response
         @request         = app.request
@@ -309,12 +309,12 @@ def response_cookies
       end
 
       def parse_response
-        string = @response['Set-Cookie']
-        return if @response_string == string
+        cookies_from_response = Array(@response['Set-Cookie'])
+        return if @response_array == cookies_from_response
 
         hash = {}
 
-        string.each_line do |line|
+        cookies_from_response.each do |line|
           key, value = line.split(';', 2).first.to_s.split('=', 2)
           next if key.nil?
 
@@ -328,7 +328,7 @@ def parse_response
         end
 
         @response_hash.replace hash
-        @response_string = string
+        @response_array = cookies_from_response
       end
 
       def request_cookies

sinatra-contrib/spec/cookies_spec.rb

@@ -153,12 +153,12 @@ def cookies(*set_cookies)
       expect(jar['foo']).to be_nil
     end
 
-    it 'removes response cookies from cookies hash' do
+    it 'does not remove response cookies from cookies hash' do
       expect(cookie_route do
         cookies['foo'] = 'bar'
         cookies.clear
         cookies['foo']
-      end).to be_nil
+      end).to eq('bar')
     end
 
     it 'expires existing cookies' do
@@ -189,12 +189,12 @@ def cookies(*set_cookies)
       expect(jar['foo']).to be_nil
     end
 
-    it 'removes response cookies from cookies hash' do
+    it 'does not remove response cookies from cookies hash' do
       expect(cookie_route do
         cookies['foo'] = 'bar'
         cookies.delete 'foo'
         cookies['foo']
-      end).to be_nil
+      end).to eq('bar')
     end
 
     it 'expires existing cookies' do
@@ -246,13 +246,16 @@ def cookies(*set_cookies)
   end
 
   describe :delete_if do
-    it 'deletes cookies that match the block' do
+    it 'expires cookies that match the block' do
       expect(cookie_route('foo=bar') do
         cookies['bar'] = 'baz'
         cookies['baz'] = 'foo'
         cookies.delete_if { |*a| a.include? 'bar' }
-        cookies.values_at 'foo', 'bar', 'baz'
-      end).to eq([nil, nil, 'foo'])
+        response['Set-Cookie']
+      end).to eq(["bar=baz; domain=example.org; path=/; httponly",
+                  "baz=foo; domain=example.org; path=/; httponly",
+                  "foo=; domain=example.org; path=/; max-age=0; expires=Thu, 01 Jan 1970 00:00:00 GMT; httponly",
+                  "bar=; domain=example.org; path=/; max-age=0; expires=Thu, 01 Jan 1970 00:00:00 GMT; httponly"])
     end
   end
 
@@ -454,12 +457,12 @@ def cookies(*set_cookies)
       end).to be false
     end
 
-    it 'becomes true if response cookies are removed' do
+    it 'deos not become true if response cookies are removed' do
       expect(cookie_route do
         cookies['foo'] = 'bar'
         cookies.delete :foo
         cookies.empty?
-      end).to be true
+      end).to be false
     end
 
     it 'becomes true if request cookies are removed' do
@@ -469,12 +472,12 @@ def cookies(*set_cookies)
       end).to be_truthy
     end
 
-    it 'becomes true after clear' do
+    it 'does not become true after clear' do
       expect(cookie_route('foo=bar', 'bar=baz') do
         cookies['foo'] = 'bar'
         cookies.clear
         cookies.empty?
-      end).to be_truthy
+      end).to be false
     end
   end
 

sinatra-contrib/spec/link_header_spec.rb

@@ -30,7 +30,7 @@
   describe :link do
     it "sets link headers" do
       get '/'
-      expect(headers['Link'].lines).to include('<booyah>; rel="something"')
+      expect(headers['Link']).to include('<booyah>; rel="something"')
     end
 
     it "returns link html tags" do