5 files changed, 35 insertions, 9 deletions
diff --git a/activemodel/test/cases/errors_test.rb b/activemodel/test/cases/errors_test.rb
index a5ac055033..26ba6ba4fb 100644
--- a/activemodel/test/cases/errors_test.rb
+++ b/activemodel/test/cases/errors_test.rb
@@ -128,6 +128,13 @@ class ErrorsTest < ActiveModel::TestCase
     assert !person.errors.include?(:foo)
   end
 
+  test "include? does not add a key to messages hash" do
+    person = Person.new
+    person.errors.include?(:foo)
+
+    assert_not person.errors.messages.key?(:foo)
+  end
+
   test "adding errors using conditionals with Person#validate!" do
     person = Person.new
     person.validate!
diff --git a/activemodel/test/cases/helper.rb b/activemodel/test/cases/helper.rb
index 27fdbc739c..44c26e4f10 100644
--- a/activemodel/test/cases/helper.rb
+++ b/activemodel/test/cases/helper.rb
@@ -1,5 +1,3 @@
-require File.expand_path('../../../../load_paths', __FILE__)
-
 require 'active_model'
 require 'active_support/core_ext/string/access'
 
diff --git a/activemodel/test/cases/type/decimal_test.rb b/activemodel/test/cases/type/decimal_test.rb
index 353dbf84ad..1950566c0e 100644
--- a/activemodel/test/cases/type/decimal_test.rb
+++ b/activemodel/test/cases/type/decimal_test.rb
@@ -52,6 +52,13 @@ module ActiveModel
         assert_not type.changed?(5.0, 5.0, '5.0')
         assert_not type.changed?(-5.0, -5.0, '-5.0')
       end
+
+      def test_scale_is_applied_before_precision_to_prevent_rounding_errors
+        type = Decimal.new(precision: 5, scale: 3)
+
+        assert_equal BigDecimal("1.250"), type.cast(1.250473853637869)
+        assert_equal BigDecimal("1.250"), type.cast("1.250473853637869")
+      end
     end
   end
 end
diff --git a/activemodel/test/cases/validations/format_validation_test.rb b/activemodel/test/cases/validations/format_validation_test.rb
index 86bbbe6ebe..ea4c2ee7df 100644
--- a/activemodel/test/cases/validations/format_validation_test.rb
+++ b/activemodel/test/cases/validations/format_validation_test.rb
@@ -73,7 +73,7 @@ class PresenceValidationTest < ActiveModel::TestCase
   end
 
   def test_validate_format_of_with_multiline_regexp_and_option
-    assert_nothing_raised(ArgumentError) do
+    assert_nothing_raised do
       Topic.validates_format_of(:title, with: /^Valid Title$/, multiline: true)
     end
   end
diff --git a/activemodel/test/cases/validations/inclusion_validation_test.rb b/activemodel/test/cases/validations/inclusion_validation_test.rb
index 55d1fb4dcb..9bd44175a6 100644
--- a/activemodel/test/cases/validations/inclusion_validation_test.rb
+++ b/activemodel/test/cases/validations/inclusion_validation_test.rb
@@ -21,24 +21,38 @@ class InclusionValidationTest < ActiveModel::TestCase
   end
 
   def test_validates_inclusion_of_time_range
-    Topic.validates_inclusion_of(:created_at, in: 1.year.ago..Time.now)
+    range_begin = 1.year.ago
+    range_end = Time.now
+    Topic.validates_inclusion_of(:created_at, in: range_begin..range_end)
     assert Topic.new(title: 'aaa', created_at: 2.years.ago).invalid?
     assert Topic.new(title: 'aaa', created_at: 3.months.ago).valid?
     assert Topic.new(title: 'aaa', created_at: 37.weeks.from_now).invalid?
+    assert Topic.new(title: 'aaa', created_at: range_begin).valid?
+    assert Topic.new(title: 'aaa', created_at: range_end).valid?
   end
 
   def test_validates_inclusion_of_date_range
-    Topic.validates_inclusion_of(:created_at, in: 1.year.until(Date.today)..Date.today)
+    range_begin = 1.year.until(Date.today)
+    range_end = Date.today
+    Topic.validates_inclusion_of(:created_at, in: range_begin..range_end)
     assert Topic.new(title: 'aaa', created_at: 2.years.until(Date.today)).invalid?
     assert Topic.new(title: 'aaa', created_at: 3.months.until(Date.today)).valid?
     assert Topic.new(title: 'aaa', created_at: 37.weeks.since(Date.today)).invalid?
+    assert Topic.new(title: 'aaa', created_at: 1.year.until(Date.today)).valid?
+    assert Topic.new(title: 'aaa', created_at: Date.today).valid?
+    assert Topic.new(title: 'aaa', created_at: range_begin).valid?
+    assert Topic.new(title: 'aaa', created_at: range_end).valid?
   end
 
   def test_validates_inclusion_of_date_time_range
-    Topic.validates_inclusion_of(:created_at, in: 1.year.until(DateTime.current)..DateTime.current)
+    range_begin = 1.year.until(DateTime.current)
+    range_end = DateTime.current
+    Topic.validates_inclusion_of(:created_at, in: range_begin..range_end)
     assert Topic.new(title: 'aaa', created_at: 2.years.until(DateTime.current)).invalid?
     assert Topic.new(title: 'aaa', created_at: 3.months.until(DateTime.current)).valid?
     assert Topic.new(title: 'aaa', created_at: 37.weeks.since(DateTime.current)).invalid?
+    assert Topic.new(title: 'aaa', created_at: range_begin).valid?
+    assert Topic.new(title: 'aaa', created_at: range_end).valid?
   end
 
   def test_validates_inclusion_of
@@ -58,9 +72,9 @@ class InclusionValidationTest < ActiveModel::TestCase
     assert_raise(ArgumentError) { Topic.validates_inclusion_of(:title, in: nil) }
     assert_raise(ArgumentError) { Topic.validates_inclusion_of(:title, in: 0) }
 
-    assert_nothing_raised(ArgumentError) { Topic.validates_inclusion_of(:title, in: "hi!") }
-    assert_nothing_raised(ArgumentError) { Topic.validates_inclusion_of(:title, in: {}) }
-    assert_nothing_raised(ArgumentError) { Topic.validates_inclusion_of(:title, in: []) }
+    assert_nothing_raised { Topic.validates_inclusion_of(:title, in: "hi!") }
+    assert_nothing_raised { Topic.validates_inclusion_of(:title, in: {}) }
+    assert_nothing_raised { Topic.validates_inclusion_of(:title, in: []) }
   end
 
   def test_validates_inclusion_of_with_allow_nil