Refactor on the default formatter

attempt to make code climate happier.

lib/micro_test/formatters/default_formatter.rb

@@ -10,9 +10,7 @@ def before_class(test_class)
     end
 
     def after_test(test)
-      duration = (test.duration * 10**4).round.to_f / 10**4
-      color = duration < 0.01 ? :yellow : :red
-      print send(color, "  #{duration.to_s.ljust(6, "0")}")
+      print_duration test.duration
 
       if test.passed?
         print green(" #{test.desc}")
@@ -35,6 +33,11 @@ def after_suite(test_classes)
 
     private
 
+    def print_duration(duration)
+      color = duration < 0.01 ? :yellow : :red
+      print send(color, "  #{duration.to_s.ljust(6, "0")}")
+    end
+
     def print_with_line(value)
       puts "#{value} ".ljust(80, "-")
     end

lib/micro_test/test_wrapper.rb

@@ -6,7 +6,7 @@ module MicroTest
   # Exists for the purpose of isolating the test method so it can run in its own thread.
   class TestWrapper
     include MonitorMixin
-    attr_reader :test_class, :desc, :asserts, :duration
+    attr_reader :test_class, :desc, :asserts
 
     # Constructor.
     # @param [MicroTest::Test] test_class The test class that defines the test being wrapped.
@@ -98,6 +98,12 @@ def reset
       @duration = nil
     end
 
+    # Rounded duration with 4 decimal places.
+    def duration
+      return nil if @duration.nil?
+      (@duration.to_f * 10**4).round / 10**4
+    end
+
     private
 
     # Builds a Hash of assert information for the given call stack.