Update migration script (#1497)

* Add whitespace -> hyphens

* Update README

test/test_migrate.rb

@@ -23,6 +23,8 @@ waa
 [[Subsub/Zaa.md]]
 EOF
 
+script_path = File.expand_path(File.join(File.dirname(__FILE__), '../', 'bin', 'gollum-migrate-tags'))
+
 unless ENV['TRAVIS']
 
   context '4.x -> 5.x tag migrator' do
@@ -36,13 +38,30 @@ unless ENV['TRAVIS']
       PREFER_RELATIVE = true
       RUN_SILENT = true
       NO_DRY_RUN = true
-      script_path = File.expand_path(File.join(File.dirname(__FILE__), '../', 'bin', 'gollum-migrate-tags'))
+      HYPHENATE = false
+      
       Dir.chdir(@path) do
         load script_path
       end
-      f = File.new(::File.join(@path, 'Subdir/Foo.md'), 'r')
+      f = ::File.new(::File.join(@path, 'Subdir/Foo.md'), 'r')
       assert_equal result, f.read
     end
+    
+    test 'change spaced filenames to hyphenated filenames' do
+      RUN_SILENT = true
+      NO_DRY_RUN = true
+      PREFER_RELATIVE = true
+      HYPHENATE = true
+    
+      Dir.chdir(@path) do
+        load script_path
+      end
+    
+      f = ::File.new(::File.join(@path, 'Home.textile'), 'r')
+      output = f.read
+      assert_equal true, output.include?('[[Bilbo-Baggins.md]]')
+      assert_equal true, output.include?('[[evil|Mordor/Eye-Of-Sauron.md]]')
+    end
 
     teardown do
       FileUtils.rm_rf(@path)