Extract tests code out from AR's base_test.rb to integration_test.rb

`AR::Base#to_param` and `AR::Base#cache_key` is defined at
active_record/integration.rb, so tests for those methods should be at
integration_test.rb

Author: take

activerecord/test/cases/base_test.rb

@@ -1228,16 +1228,6 @@ def test_assert_queries
     assert_no_queries { assert true }
   end
 
-  def test_to_param_should_return_string
-    assert_kind_of String, Client.first.to_param
-  end
-
-  def test_to_param_returns_id_even_if_not_persisted
-    client = Client.new
-    client.id = 1
-    assert_equal "1", client.to_param
-  end
-
   def test_inspect_class
     assert_equal 'ActiveRecord::Base', ActiveRecord::Base.inspect
     assert_equal 'LoosePerson(abstract)', LoosePerson.inspect
@@ -1431,76 +1421,13 @@ def test_attribute_names_on_abstract_class
     assert_equal [], AbstractCompany.attribute_names
   end
 
-  def test_cache_key_for_existing_record_is_not_timezone_dependent
-    ActiveRecord::Base.time_zone_aware_attributes = true
-
-    Time.zone = "UTC"
-    utc_key = Developer.first.cache_key
-
-    Time.zone = "EST"
-    est_key = Developer.first.cache_key
-
-    assert_equal utc_key, est_key
-  end
-
-  def test_cache_key_format_for_existing_record_with_updated_at
-    dev = Developer.first
-    assert_equal "developers/#{dev.id}-#{dev.updated_at.utc.to_s(:nsec)}", dev.cache_key
-  end
-
-  def test_cache_key_format_for_existing_record_with_updated_at_and_custom_cache_timestamp_format
-    dev = CachedDeveloper.first
-    assert_equal "cached_developers/#{dev.id}-#{dev.updated_at.utc.to_s(:number)}", dev.cache_key
-  end
-
-  def test_cache_key_changes_when_child_touched
-    car = Car.create
-    Bulb.create(car: car)
-
-    key = car.cache_key
-    car.bulb.touch
-    car.reload
-    assert_not_equal key, car.cache_key
-  end
-
-  def test_cache_key_format_for_existing_record_with_nil_updated_timestamps
-    dev = Developer.first
-    dev.update_columns(updated_at: nil, updated_on: nil)
-    assert_match(/\/#{dev.id}$/, dev.cache_key)
-  end
-
-  def test_cache_key_for_updated_on
-    dev = Developer.first
-    dev.updated_at = nil
-    assert_equal "developers/#{dev.id}-#{dev.updated_on.utc.to_s(:nsec)}", dev.cache_key
-  end
-
-  def test_cache_key_for_newer_updated_at
-    dev = Developer.first
-    dev.updated_at += 3600
-    assert_equal "developers/#{dev.id}-#{dev.updated_at.utc.to_s(:nsec)}", dev.cache_key
-  end
-
-  def test_cache_key_for_newer_updated_on
-    dev = Developer.first
-    dev.updated_on += 3600
-    assert_equal "developers/#{dev.id}-#{dev.updated_on.utc.to_s(:nsec)}", dev.cache_key
-  end
-
   def test_touch_should_raise_error_on_a_new_object
     company = Company.new(:rating => 1, :name => "37signals", :firm_name => "37signals")
     assert_raises(ActiveRecord::ActiveRecordError) do
       company.touch :updated_at
     end
   end
 
-  def test_cache_key_format_is_precise_enough
-    dev = Developer.first
-    key = dev.cache_key
-    dev.touch
-    assert_not_equal key, dev.cache_key
-  end
-
   def test_uniq_delegates_to_scoped
     scope = stub
     Bird.stubs(:all).returns(mock(:uniq => scope))

activerecord/test/cases/integration_test.rb

@@ -0,0 +1,82 @@
+require 'cases/helper'
+require 'models/company'
+require 'models/developer'
+require 'models/car'
+require 'models/bulb'
+
+class IntegrationTest < ActiveRecord::TestCase
+  fixtures :companies, :developers
+
+  def test_to_param_should_return_string
+    assert_kind_of String, Client.first.to_param
+  end
+
+  def test_to_param_returns_id_even_if_not_persisted
+    client = Client.new
+    client.id = 1
+    assert_equal '1', client.to_param
+  end
+
+  def test_cache_key_for_existing_record_is_not_timezone_dependent
+    ActiveRecord::Base.time_zone_aware_attributes = true
+
+    Time.zone = 'UTC'
+    utc_key = Developer.first.cache_key
+
+    Time.zone = 'EST'
+    est_key = Developer.first.cache_key
+
+    assert_equal utc_key, est_key
+  end
+
+  def test_cache_key_format_for_existing_record_with_updated_at
+    dev = Developer.first
+    assert_equal "developers/#{dev.id}-#{dev.updated_at.utc.to_s(:nsec)}", dev.cache_key
+  end
+
+  def test_cache_key_format_for_existing_record_with_updated_at_and_custom_cache_timestamp_format
+    dev = CachedDeveloper.first
+    assert_equal "cached_developers/#{dev.id}-#{dev.updated_at.utc.to_s(:number)}", dev.cache_key
+  end
+
+  def test_cache_key_changes_when_child_touched
+    car = Car.create
+    Bulb.create(car: car)
+
+    key = car.cache_key
+    car.bulb.touch
+    car.reload
+    assert_not_equal key, car.cache_key
+  end
+
+  def test_cache_key_format_for_existing_record_with_nil_updated_timestamps
+    dev = Developer.first
+    dev.update_columns(updated_at: nil, updated_on: nil)
+    assert_match(/\/#{dev.id}$/, dev.cache_key)
+  end
+
+  def test_cache_key_for_updated_on
+    dev = Developer.first
+    dev.updated_at = nil
+    assert_equal "developers/#{dev.id}-#{dev.updated_on.utc.to_s(:nsec)}", dev.cache_key
+  end
+
+  def test_cache_key_for_newer_updated_at
+    dev = Developer.first
+    dev.updated_at += 3600
+    assert_equal "developers/#{dev.id}-#{dev.updated_at.utc.to_s(:nsec)}", dev.cache_key
+  end
+
+  def test_cache_key_for_newer_updated_on
+    dev = Developer.first
+    dev.updated_on += 3600
+    assert_equal "developers/#{dev.id}-#{dev.updated_on.utc.to_s(:nsec)}", dev.cache_key
+  end
+
+  def test_cache_key_format_is_precise_enough
+    dev = Developer.first
+    key = dev.cache_key
+    dev.touch
+    assert_not_equal key, dev.cache_key
+  end
+end