Fix incorrect scope of Vcard.configure and Vcard.configuration methods

lib/vcard.rb

@@ -287,11 +287,11 @@ def self.outer_inner(fields) #:nodoc:
     return outer, inner
   end
 
-  def configuration
+  def self.configuration
     @configuration ||= Configuration.new
   end
 
-  def configure
+  def self.configure
     yield configuration
   end
 

lib/vcard/configuration.rb

@@ -8,8 +8,18 @@ class Configuration
     alias_method :ignore_invalid_vcards?, :ignore_invalid_vcards
 
     def initialize
-      @raise_on_invalid = true
-      @ignore_invalid_vcard = true
+      set_default_values
+    end
+
+    def reset
+      set_default_values
+    end
+
+    private
+
+    def set_default_values
+      @raise_on_invalid_line = true
+      @ignore_invalid_vcards = true
     end
 
   end

test/configuration_test.rb

@@ -0,0 +1,23 @@
+require "test_helper"
+
+class ConfigurationTest < Test::Unit::TestCase
+  def test_should_be_an_instance_of_configuration
+    assert Vcard.configuration.is_a?(::Vcard::Configuration)
+  end
+
+  def test_have_default_values
+    Vcard.configuration.reset
+    assert_equal(Vcard.configuration.raise_on_invalid_line, true)
+    assert_equal(Vcard.configuration.ignore_invalid_vcards, true)
+  end
+
+  def test_allow_configuration_with_block
+    Vcard.configuration.reset
+    Vcard.configure do |config|
+      config.raise_on_invalid_line = false
+      config.ignore_invalid_vcards = false
+    end
+    assert_equal(Vcard.configuration.raise_on_invalid_line, false)
+    assert_equal(Vcard.configuration.ignore_invalid_vcards, false)
+  end
+end