added custom parameters in the router

lib/zero/router.rb

@@ -52,7 +52,7 @@ module Zero
         match = route.match(request.path)
         if match
           match.names.each_index do |i|
-            request.update_param(match.names[i], match.captures[i])
+            request.params[match.names[i]] = match.captures[i]
           end
           return target.call(request.env)
         end

spec/unit/router/call_spec.rb

@@ -9,34 +9,47 @@ describe Zero::Router, '#call' do
   end
   let(:app) { SpecApp }
 
-  shared_examples_for "a sample app" do
+  shared_examples_for 'a sample app' do
     it "returns a response" do
       subject.call(env).to_a[2].should eq(result)
     end
   end
 
-  context "with a single route" do
+  context 'with a single route' do
     let(:routes) {{ '/' => app }}
     let(:env) { EnvGenerator.get('/') }
     it_behaves_like "a sample app"
   end
 
-  context "with multiple routes" do
+  context 'with multiple router' do
     let(:routes) {{ '/foo' => app, '/wrong' => wrong_app }}
     let(:env) { EnvGenerator.get('/foo') }
     it_behaves_like "a sample app"
   end
 
-  context "with nested routes" do
+  context 'with nested routes' do
     let(:routes) {{ '/' => wrong_app, '/foo' => app, '/foo/bar' => wrong_app }}
     let(:env) { EnvGenerator.get('/foo') }
     it_behaves_like "a sample app"
   end
 
-  context "with a route not found" do
+  context 'with a route not found' do
     let(:routes) {{ '/foo' => wrong_app, '/foo/bar/baz' => app }}
     let(:env) { EnvGenerator.get('/foo/bar') }
     let(:result) { ['Not found!'] }
     it_behaves_like "a sample app"
   end
+
+  context 'with parameters' do
+    let(:routes) {{ '/foo/:id' => app }}
+    let(:env) { EnvGenerator.get('/foo/bar') }
+    let(:app) do
+      lambda do |env|
+        [200, {}, [Zero::Request.create(env).params['id']]]
+      end
+    end
+    let(:result) { ['bar'] }
+
+    it_behaves_like 'a sample app'
+  end
 end