5 files changed, 8 insertions, 8 deletions
diff --git a/activemodel/lib/active_model/errors.rb b/activemodel/lib/active_model/errors.rb
index d106f65fa2..685e235730 100644
--- a/activemodel/lib/active_model/errors.rb
+++ b/activemodel/lib/active_model/errors.rb
@@ -526,6 +526,10 @@ module ActiveModel
   class StrictValidationFailed < StandardError
   end
 
+  # Raised when attribute values are out of range.
+  class RangeError < ::RangeError
+  end
+
   # Raised when unknown attributes are supplied via mass assignment.
   class UnknownAttributeError < NoMethodError
     attr_reader :record, :attribute
diff --git a/activemodel/lib/active_model/gem_version.rb b/activemodel/lib/active_model/gem_version.rb
index 62862aa4e9..514c3ba4a8 100644
--- a/activemodel/lib/active_model/gem_version.rb
+++ b/activemodel/lib/active_model/gem_version.rb
@@ -8,7 +8,7 @@ module ActiveModel
     MAJOR = 5
     MINOR = 0
     TINY  = 0
-    PRE   = "beta3"
+    PRE   = "beta4"
 
     STRING = [MAJOR, MINOR, TINY, PRE].compact.join(".")
   end
diff --git a/activemodel/lib/active_model/type/integer.rb b/activemodel/lib/active_model/type/integer.rb
index 2f73ede009..eea2280b22 100644
--- a/activemodel/lib/active_model/type/integer.rb
+++ b/activemodel/lib/active_model/type/integer.rb
@@ -46,7 +46,7 @@ module ActiveModel
 
       def ensure_in_range(value)
         unless range.cover?(value)
-          raise RangeError, "#{value} is out of range for #{self.class} with limit #{_limit}"
+          raise ActiveModel::RangeError, "#{value} is out of range for #{self.class} with limit #{_limit}"
         end
       end
 
diff --git a/activemodel/lib/active_model/validations/acceptance.rb b/activemodel/lib/active_model/validations/acceptance.rb
index c5c0cd4636..a04e5f347e 100644
--- a/activemodel/lib/active_model/validations/acceptance.rb
+++ b/activemodel/lib/active_model/validations/acceptance.rb
@@ -64,11 +64,7 @@ module ActiveModel
         private
 
         def convert_to_reader_name(method_name)
-          attr_name = method_name.to_s
-          if attr_name.end_with?("=")
-            attr_name = attr_name[0..-2]
-          end
-          attr_name
+          method_name.to_s.chomp('=')
         end
       end
     end
diff --git a/activemodel/lib/active_model/validator.rb b/activemodel/lib/active_model/validator.rb
index 109bf038b0..699f74ed17 100644
--- a/activemodel/lib/active_model/validator.rb
+++ b/activemodel/lib/active_model/validator.rb
@@ -100,7 +100,7 @@ module ActiveModel
     #   PresenceValidator.kind   # => :presence
     #   UniquenessValidator.kind # => :uniqueness
     def self.kind
-      @kind ||= name.split('::').last.underscore.sub(/_validator$/, '').to_sym unless anonymous?
+      @kind ||= name.split('::').last.underscore.chomp('_validator').to_sym unless anonymous?
     end
 
     # Accepts options that will be made available through the +options+ reader.