Merge tests about multiple validation contexts

Author: carlosantoniodasilva

activemodel/test/cases/validations/validations_context_test.rb

@@ -4,7 +4,6 @@
 require 'models/topic'
 
 class ValidationsContextTest < ActiveModel::TestCase
-
   def teardown
     Topic.reset_callbacks(:validate)
     Topic._validators.clear
@@ -37,19 +36,16 @@ def validate(record)
     assert topic.errors[:base].include?(ERROR_MESSAGE)
   end
 
-  test "with a class that adds errors on multiple contexts and validating a new model with no arguments" do
-    Topic.validates_with(ValidatorThatAddsErrors, on: [:context1, :context2])
-    topic = Topic.new
-    assert topic.valid?, "Validation doesn't run when 'on' is set to context1 and context2"
-  end
-
   test "with a class that adds errors on multiple contexts and validating a new model" do
     Topic.validates_with(ValidatorThatAddsErrors, on: [:context1, :context2])
+
     topic = Topic.new
-    assert topic.invalid?(:context1), "Validation does run on context1 when 'on' is set to context1 and context2"
+    assert topic.valid?, "Validation ran with no context given when 'on' is set to context1 and context2"
+
+    assert topic.invalid?(:context1), "Validation did not run on context1 when 'on' is set to context1 and context2"
     assert topic.errors[:base].include?(ERROR_MESSAGE)
-    topic = Topic.new
-    assert topic.invalid?(:context2), "Validation does run on context2 when 'on' is set to context1 and context2"
+
+    assert topic.invalid?(:context2), "Validation did not run on context2 when 'on' is set to context1 and context2"
     assert topic.errors[:base].include?(ERROR_MESSAGE)
   end
 end