ruby/phone-number: Phone -> PhoneNumber

More appropriate name for the class. Maybe USPhoneNumber would be better still.

assignments/ruby/phone-number/example.rb

@@ -1,4 +1,4 @@
-class Phone
+class PhoneNumber
 
   attr_reader :number
   def initialize(number)

assignments/ruby/phone-number/phone-number_test.rb

@@ -1,52 +1,52 @@
 require 'minitest/autorun'
-require_relative 'phone'
+require_relative 'phone_number'
 
-class PhoneTest < MiniTest::Unit::TestCase
+class PhoneNumberTest < MiniTest::Unit::TestCase
 
   def test_cleans_number
-    number = Phone.new("(123) 456-7890").number
+    number = PhoneNumber.new("(123) 456-7890").number
     assert_equal "1234567890", number
   end
 
   def test_cleans_number_with_dots
     skip
-    number = Phone.new("123.456.7890").number
+    number = PhoneNumber.new("123.456.7890").number
     assert_equal "1234567890", number
   end
 
   def test_valid_when_11_digits_and_first_is_1
     skip
-    number = Phone.new("11234567890").number
+    number = PhoneNumber.new("11234567890").number
     assert_equal "1234567890", number
   end
 
   def test_invalid_when_11_digits
     skip
-    number = Phone.new("21234567890").number
+    number = PhoneNumber.new("21234567890").number
     assert_equal "0000000000", number
   end
 
   def test_invalid_when_9_digits
     skip
-    number = Phone.new("123456789").number
+    number = PhoneNumber.new("123456789").number
     assert_equal "0000000000", number
   end
 
   def test_area_code
     skip
-    number = Phone.new("1234567890")
+    number = PhoneNumber.new("1234567890")
     assert_equal "123", number.area_code
   end
 
   def test_pretty_print
     skip
-    number = Phone.new("1234567890")
+    number = PhoneNumber.new("1234567890")
     assert_equal "(123) 456-7890", number.to_s
   end
 
   def test_pretty_print_with_full_us_phone_number
     skip
-    number = Phone.new("11234567890")
+    number = PhoneNumber.new("11234567890")
     assert_equal "(123) 456-7890", number.to_s
   end