use Minitest namespace instead of old MiniTest

test/builder_test.rb

@@ -1,7 +1,7 @@
 require 'test_helper'
 require "uber/builder"
 
-class BuilderTest < MiniTest::Spec
+class BuilderTest < Minitest::Spec
   Evergreen = Struct.new(:title)
   Hit  = Struct.new(:title)
 
@@ -75,7 +75,7 @@ def self.build(options)
 end
 
 
-class BuilderScopeTest < MiniTest::Spec
+class BuilderScopeTest < Minitest::Spec
   def self.builder_method(options)
     options[:from_builder_method] and return self
   end

test/delegates_test.rb

@@ -1,7 +1,7 @@
 require 'test_helper'
 require 'uber/delegates'
 
-class DelegatesTest < MiniTest::Spec
+class DelegatesTest < Minitest::Spec
   class Song
     extend Uber::Delegates
 

test/inheritable_attr_test.rb

@@ -1,7 +1,7 @@
 require 'test_helper'
 require "uber/inheritable_attr"
 
-class InheritableAttrTest < MiniTest::Spec
+class InheritableAttrTest < Minitest::Spec
   describe "::inheritable_attr" do
     subject {
       Class.new(Object) do

test/inheritance_test.rb

@@ -15,7 +15,7 @@
 #   end
 # end
 
-# class InheritanceTest < MiniTest::Spec
+# class InheritanceTest < Minitest::Spec
 #   module Feature
 #     #extend Uber::InheritedIncluded
 

test/options_test.rb

@@ -1,7 +1,7 @@
 require 'test_helper'
 require 'uber/options'
 
-class UberOptionsTest < MiniTest::Spec
+class UberOptionsTest < Minitest::Spec
   Options = Uber::Options
 
   let (:dynamic) { Options.new(:volume =>1, :style => "Punkrock", :track => Proc.new { |i| i.to_s }) }