Introduce Kemal::InitHandler to initialize HTTP::Server::Context with defaults

spec/config_spec.cr

@@ -26,7 +26,7 @@ describe "Config" do
   it "adds a custom handler" do
     config = Kemal.config
     config.add_handler CustomTestHandler.new
-    config.handlers.size.should eq(5)
+    config.handlers.size.should eq(6)
   end
 
   it "adds custom options" do

spec/context_spec.cr

@@ -1,15 +1,6 @@
 require "./spec_helper"
 
 describe "Context" do
-  it "has a default content type" do
-    get "/" do |env|
-      "Hello"
-    end
-    request = HTTP::Request.new("GET", "/")
-    client_response = call_request_on_app(request)
-    client_response.headers["Content-Type"].should eq("text/html")
-  end
-
   it "sets content type" do
     get "/" do |env|
       env.response.content_type = "application/json"

spec/helpers_spec.cr

@@ -4,7 +4,7 @@ describe "Macros" do
   describe "#basic_auth" do
     it "adds HTTPBasicAuthHandler" do
       basic_auth "serdar", "123"
-      Kemal.config.handlers.size.should eq 5
+      Kemal.config.handlers.size.should eq 6
     end
   end
 
@@ -18,7 +18,7 @@ describe "Macros" do
   describe "#add_handler" do
     it "adds a custom handler" do
       add_handler CustomTestHandler.new
-      Kemal.config.handlers.size.should eq 5
+      Kemal.config.handlers.size.should eq 6
     end
   end
 

spec/init_handler_spec.cr

@@ -0,0 +1,21 @@
+require "./spec_helper"
+
+describe "Kemal::InitHandler" do
+  it "initializes context with Content-Type: text/html" do
+    request = HTTP::Request.new("GET", "/")
+    io = MemoryIO.new
+    response = HTTP::Server::Response.new(io)
+    context = HTTP::Server::Context.new(request, response)
+    Kemal::InitHandler::INSTANCE.call(context)
+    context.response.headers["Content-Type"].should eq "text/html"
+  end
+
+  it "initializes context with X-Powered-By: Kemal" do
+    request = HTTP::Request.new("GET", "/")
+    io = MemoryIO.new
+    response = HTTP::Server::Response.new(io)
+    context = HTTP::Server::Context.new(request, response)
+    Kemal::InitHandler::INSTANCE.call(context)
+    context.response.headers["X-Powered-By"].should eq "Kemal"
+  end
+end

spec/route_handler_spec.cr

@@ -155,20 +155,4 @@ describe "Kemal::RouteHandler" do
     client_response.status_code.should eq(302)
     client_response.headers.has_key?("Location").should eq(true)
   end
-
-  it "sets default Content-Type to context html" do
-    get "/" do |env|
-      "Hello World from GET"
-    end
-    request = HTTP::Request.new("GET", "/")
-    client_response = call_request_on_app(request)
-    client_response.content_type.should eq("text/html")
-  end
-
-  it "sets X-Powered-By to Kemal" do
-    get "/" { }
-    request = HTTP::Request.new("GET", "/")
-    client_response = call_request_on_app(request)
-    client_response.headers["X-Powered-By"].should eq("Kemal")
-  end
 end