Improve logging and specs

spec/common_log_handler_spec.cr

@@ -0,0 +1,22 @@
+require "./spec_helper"
+
+describe "Kemal::CommonLogHandler" do
+  it "logs to the given IO" do
+    config = Kemal.config
+    io = MemoryIO.new
+    logger = Kemal::CommonLogHandler.new io
+    logger.write "Something"
+    io.to_s.should eq "Something"
+  end
+
+  it "creates log message for each request" do
+    request = HTTP::Request.new("GET", "/")
+    io = MemoryIO.new
+    context_io = MemoryIO.new
+    response = HTTP::Server::Response.new(context_io)
+    context = HTTP::Server::Context.new(request, response)
+    logger = Kemal::CommonLogHandler.new io
+    logger.call(context)
+    io.to_s.should_not be nil
+  end
+end

spec/logger_spec.cr

@@ -1,14 +0,0 @@
-require "./spec_helper"
-
-describe "Kemal::LogHandler" do
-  it "creates a handler" do
-    logger = Kemal::CommonLogHandler.new
-    logger.handler.should_not be nil
-  end
-
-  it "creates a STDOUT handler by default" do
-    config = Kemal.config
-    logger = Kemal::CommonLogHandler.new
-    logger.handler.should be_a IO
-  end
-end

spec/spec_helper.cr

@@ -9,7 +9,13 @@ class CustomTestHandler < HTTP::Handler
   end
 end
 
-class CustomLogHandler < Kemal::BaseLogHandler; end
+class CustomLogHandler < Kemal::BaseLogHandler
+  def call(context)
+  end
+
+  def write(message)
+  end
+end
 
 def create_request_and_return_io(handler, request)
   io = MemoryIO.new