New testing structure

git-svn-id: https://svn.thoughtbot.com/plugins/paperclip/trunk@239 7bbfaf0e-4d1d-0410-9690-a8bb5f8ef2aa

test/paperclip_test.rb

+require 'test/unit'
+require File.dirname(__FILE__) + "/test_helper.rb"
+require File.dirname(__FILE__) + "/simply_shoulda.rb"
+require File.dirname(__FILE__) + "/../lib/paperclip-c.rb"
+
+class PaperclipTest < Test::Unit::TestCase
+
+  context "Paperclip" do
+    should "allow overriding options" do
+      not_expected = Paperclip.options[:image_magick_path]
+      Paperclip.options[:image_magick_path] = "123"
+      assert_equal "123", Paperclip.options[:image_magick_path]
+    end
+
+    should "give the correct path for a command" do
+      expected = "/usr/bin/wtf"
+      Paperclip.options[:image_magick_path] = "/usr/bin"
+      assert_equal expected, Paperclip.path_for_command("wtf")
+    end
+
+    context "being used on class Foo" do
+      setup do
+        ActiveRecord::Base.connection.create_table :foos, :force => true do |table|
+          table.column :image_file_name, :string
+          table.column :image_content_type, :string
+          table.column :image_file_size, :integer
+
+          table.column :document_file_name, :string
+          table.column :document_content_type, :string
+          table.column :document_file_size, :integer
+        end
+        class ::Foo < ActiveRecord::Base; end
+      end
+
+      should "be able to assign a default attachment" do
+        assert Foo.has_attached_file(:image)
+        assert_equal [:image], Foo.attached_files
+      end
+
+      should "be able to assign two attachments separately" do
+        assert Foo.has_attached_file(:image)
+        assert Foo.has_attached_file(:document)
+        assert_equal [:image, :document], Foo.attached_files
+      end
+
+      should "be able to assign two attachments simultaneously" do
+        assert Foo.has_attached_file(:image, :document)
+        assert_equal [:image, :document], Foo.attached_files
+      end
+
+      should "be able to set options on attachments" do
+        assert Foo.has_attached_file :image, :thumbnails => {:thumb => "100x100"}
+        assert_equal [:image], Foo.attached_files
+      end
+    end
+
+  end
+
+end
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test/simply_shoulda.rb

+class << Test::Unit::TestCase
+  def context name, &block
+    (@contexts ||= [])       << name
+    (@context_blocks ||= []) << block
+    saved_setups    = (@context_setups ||= []).dup
+    saved_teardowns = (@context_teardowns ||= []).dup
+
+    self.instance_eval(&block)
+
+    @context_setups     = saved_setups
+    @context_teardowns  = saved_teardowns
+    @contexts.pop
+    @context_blocks.pop
+  end
+
+  def setup &block
+    @context_setups << block
+  end
+
+  def teardown &block
+    @context_teardowns << block
+  end
+
+  def should name, &test
+    context_setups    = @context_setups.dup
+    context_teardowns = @context_teardowns.dup
+    define_method(["test:", @contexts, "should", name].join(" ")) do
+      context_setups.each { |setup| self.instance_eval(&setup) }
+      self.instance_eval(&test)
+      context_teardowns.each { |teardown| self.instance_eval(&teardown) }
+    end
+  end
+end
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