Updated logger to be more robust

spec/config_spec.cr

@@ -12,6 +12,17 @@ describe "Config" do
     config.port.should eq 3000
   end
 
+  it "sets default environment to development" do
+    config = Kemal.config
+    config.env.should eq "development"
+  end
+
+  it "set environment to production" do
+    config = Kemal.config
+    config.env = "production"
+    config.env.should eq "production"
+  end
+
   it "adds a custom handler" do
     config = Kemal.config
     config.add_handler CustomTestHandler.new

spec/logger_spec.cr

@@ -1,11 +1,16 @@
 require "./spec_helper"
 
 describe "Logger" do
-  it "logs stuff" do
-    # IO.pipe do |r, w|
-    #   logger = Kemal::Logger.new(w)
-    #   logger.info "Info from logger"
-    #   r.gets.should match(/Info from logger/)
-    # end
+  it "creates a STDOUT handler by default" do
+    config = Kemal.config
+    logger = Kemal::Logger.new
+    logger.handler.should be_a IO
+  end
+
+  it "creates a file handler in production" do
+    config = Kemal.config
+    config.env = "production"
+    logger = Kemal::Logger.new
+    logger.handler.should be_a File
   end
 end