Moved a couple more error class definitions in to errors.rb.

lib/vcr/errors.rb

@@ -1,9 +1,12 @@
 module VCR
   module Errors
-    class Error                   < StandardError; end
-    class CassetteInUseError      < Error; end
-    class TurnedOffError          < Error; end
-    class MissingERBVariableError < Error; end
+    class Error                     < StandardError; end
+    class CassetteInUseError        < Error; end
+    class TurnedOffError            < Error; end
+    class MissingERBVariableError   < Error; end
+    class LibraryVersionTooLowError < Error; end
+    class UnregisteredMatcherError  < Error; end
+
 
     class HTTPConnectionNotAllowedError < Error
       def initialize(request)

lib/vcr/request_matcher_registry.rb

@@ -1,6 +1,4 @@
 module VCR
-  class UnregisteredMatcherError < ArgumentError; end
-
   class RequestMatcherRegistry
     DEFAULT_MATCHERS = [:method, :uri]
 
@@ -58,7 +56,7 @@ def uri_without_params(*ignores)
   private
 
     def raise_unregistered_matcher_error(name)
-      raise UnregisteredMatcherError.new \
+      raise Errors::UnregisteredMatcherError.new \
         "There is no matcher registered for #{name.inspect}. " +
         "Did you mean one of #{@registry.keys.map(&:inspect).join(', ')}?"
     end

lib/vcr/util/version_checker.rb

@@ -1,6 +1,4 @@
 module VCR
-  class LibraryVersionTooLowError < StandardError; end
-
   class VersionChecker
     def initialize(library_name, library_version, min_patch_level, max_minor_version)
       @library_name, @library_version = library_name, library_version
@@ -29,8 +27,9 @@ def too_high?
     end
 
     def raise_too_low_error
-      raise LibraryVersionTooLowError, "You are using #{@library_name} #{@library_version}. " +
-                                       "VCR requires version #{version_requirement}."
+      raise Errors::LibraryVersionTooLowError,
+        "You are using #{@library_name} #{@library_version}. " +
+        "VCR requires version #{version_requirement}."
     end
 
     def warn_about_too_high