diff --git a/activerecord/lib/active_record/test_case.rb b/activerecord/lib/active_record/test_case.rb
index 64ecef2077594..46bbe962d1a7e 100644
--- a/activerecord/lib/active_record/test_case.rb
+++ b/activerecord/lib/active_record/test_case.rb
@@ -26,36 +26,5 @@ def assert_date_from_db(expected, actual, message = nil)
         assert_equal expected.to_s, actual.to_s, message
       end
     end
-
-    def assert_sql(*patterns_to_match)
-      ActiveRecord::SQLCounter.log = []
-      yield
-      ActiveRecord::SQLCounter.log
-    ensure
-      failed_patterns = []
-      patterns_to_match.each do |pattern|
-        failed_patterns << pattern unless ActiveRecord::SQLCounter.log.any?{ |sql| pattern === sql }
-      end
-      assert failed_patterns.empty?, "Query pattern(s) #{failed_patterns.map{ |p| p.inspect }.join(', ')} not found.#{ActiveRecord::SQLCounter.log.size == 0 ? '' : "\nQueries:\n#{ActiveRecord::SQLCounter.log.join("\n")}"}"
-    end
-
-    def assert_queries(num = 1)
-      ActiveRecord::SQLCounter.log = []
-      yield
-    ensure
-      assert_equal num, ActiveRecord::SQLCounter.log.size, "#{ActiveRecord::SQLCounter.log.size} instead of #{num} queries were executed.#{ActiveRecord::SQLCounter.log.size == 0 ? '' : "\nQueries:\n#{ActiveRecord::SQLCounter.log.join("\n")}"}"
-    end
-
-    def assert_no_queries(&block)
-      prev_ignored_sql = ActiveRecord::SQLCounter.ignored_sql
-      ActiveRecord::SQLCounter.ignored_sql = []
-      assert_queries(0, &block)
-    ensure
-      ActiveRecord::SQLCounter.ignored_sql = prev_ignored_sql
-    end
-
-    def sqlite3? connection
-      connection.class.name.split('::').last == "SQLite3Adapter"
-    end
   end
 end
diff --git a/activerecord/test/cases/helper.rb b/activerecord/test/cases/helper.rb
index d16cccdaea56b..b4598ab32ade7 100644
--- a/activerecord/test/cases/helper.rb
+++ b/activerecord/test/cases/helper.rb
@@ -6,8 +6,8 @@
 require 'stringio'
 require 'mocha'
 
+require 'cases/test_case'
 require 'active_record'
-require 'active_record/test_case'
 require 'active_support/dependencies'
 require 'active_support/logger'
 
diff --git a/activerecord/test/cases/test_case.rb b/activerecord/test/cases/test_case.rb
new file mode 100644
index 0000000000000..f0fefe6c482b0
--- /dev/null
+++ b/activerecord/test/cases/test_case.rb
@@ -0,0 +1,63 @@
+require 'active_support/test_case'
+
+module ActiveRecord
+  # = Active Record Test Case
+  #
+  # Defines some test assertions to test against SQL queries.
+  class TestCase < ActiveSupport::TestCase #:nodoc:
+    setup :cleanup_identity_map
+
+    def setup
+      cleanup_identity_map
+    end
+
+    def teardown
+      ActiveRecord::SQLCounter.log.clear
+    end
+
+    def cleanup_identity_map
+      ActiveRecord::IdentityMap.clear
+    end
+
+    def assert_date_from_db(expected, actual, message = nil)
+      # SybaseAdapter doesn't have a separate column type just for dates,
+      # so the time is in the string and incorrectly formatted
+      if current_adapter?(:SybaseAdapter)
+        assert_equal expected.to_s, actual.to_date.to_s, message
+      else
+        assert_equal expected.to_s, actual.to_s, message
+      end
+    end
+
+    def assert_sql(*patterns_to_match)
+      ActiveRecord::SQLCounter.log = []
+      yield
+      ActiveRecord::SQLCounter.log
+    ensure
+      failed_patterns = []
+      patterns_to_match.each do |pattern|
+        failed_patterns << pattern unless ActiveRecord::SQLCounter.log.any?{ |sql| pattern === sql }
+      end
+      assert failed_patterns.empty?, "Query pattern(s) #{failed_patterns.map{ |p| p.inspect }.join(', ')} not found.#{ActiveRecord::SQLCounter.log.size == 0 ? '' : "\nQueries:\n#{ActiveRecord::SQLCounter.log.join("\n")}"}"
+    end
+
+    def assert_queries(num = 1)
+      ActiveRecord::SQLCounter.log = []
+      yield
+    ensure
+      assert_equal num, ActiveRecord::SQLCounter.log.size, "#{ActiveRecord::SQLCounter.log.size} instead of #{num} queries were executed.#{ActiveRecord::SQLCounter.log.size == 0 ? '' : "\nQueries:\n#{ActiveRecord::SQLCounter.log.join("\n")}"}"
+    end
+
+    def assert_no_queries(&block)
+      prev_ignored_sql = ActiveRecord::SQLCounter.ignored_sql
+      ActiveRecord::SQLCounter.ignored_sql = []
+      assert_queries(0, &block)
+    ensure
+      ActiveRecord::SQLCounter.ignored_sql = prev_ignored_sql
+    end
+
+    def sqlite3? connection
+      connection.class.name.split('::').last == "SQLite3Adapter"
+    end
+  end
+end