3 files changed, 22 insertions, 6 deletions
diff --git a/activerecord/test/cases/adapter_test.rb b/activerecord/test/cases/adapter_test.rb
index ba04859bf0..ce2ed06c1d 100644
--- a/activerecord/test/cases/adapter_test.rb
+++ b/activerecord/test/cases/adapter_test.rb
@@ -490,6 +490,8 @@ module ActiveRecord
       @connection.truncate("posts")
 
       assert_equal 0, Post.count
+    ensure
+      reset_fixtures("posts")
     end
 
     def test_truncate_with_query_cache
@@ -501,6 +503,7 @@ module ActiveRecord
 
       assert_equal 0, Post.count
     ensure
+      reset_fixtures("posts")
       @connection.disable_query_cache!
     end
 
@@ -514,6 +517,8 @@ module ActiveRecord
       assert_equal 0, Post.count
       assert_equal 0, Author.count
       assert_equal 0, AuthorAddress.count
+    ensure
+      reset_fixtures("posts", "authors", "author_addresses")
     end
 
     def test_truncate_tables_with_query_cache
@@ -529,6 +534,7 @@ module ActiveRecord
       assert_equal 0, Author.count
       assert_equal 0, AuthorAddress.count
     ensure
+      reset_fixtures("posts", "authors", "author_addresses")
       @connection.disable_query_cache!
     end
 
@@ -551,6 +557,16 @@ module ActiveRecord
         assert_nothing_raised { sub.save! }
       end
     end
+
+    private
+
+      def reset_fixtures(*fixture_names)
+        ActiveRecord::FixtureSet.reset_cache
+
+        fixture_names.each do |fixture_name|
+          ActiveRecord::FixtureSet.create_fixtures(FIXTURES_ROOT, fixture_name)
+        end
+      end
   end
 end
 
diff --git a/activerecord/test/cases/ar_schema_test.rb b/activerecord/test/cases/ar_schema_test.rb
index 9027cc582a..7aa6d089c5 100644
--- a/activerecord/test/cases/ar_schema_test.rb
+++ b/activerecord/test/cases/ar_schema_test.rb
@@ -160,7 +160,7 @@ class ActiveRecordSchemaTest < ActiveRecord::TestCase
   end
 
   if subsecond_precision_supported?
-    def test_timestamps_sets_presicion_on_create_table
+    def test_timestamps_sets_precision_on_create_table
       ActiveRecord::Schema.define do
         create_table :has_timestamps do |t|
           t.timestamps
@@ -171,7 +171,7 @@ class ActiveRecordSchemaTest < ActiveRecord::TestCase
       assert @connection.column_exists?(:has_timestamps, :updated_at, precision: 6, null: false)
     end
 
-    def test_timestamps_sets_presicion_on_change_table
+    def test_timestamps_sets_precision_on_change_table
       ActiveRecord::Schema.define do
         create_table :has_timestamps
 
@@ -185,7 +185,7 @@ class ActiveRecordSchemaTest < ActiveRecord::TestCase
     end
 
     if ActiveRecord::Base.connection.supports_bulk_alter?
-      def test_timestamps_sets_presicion_on_change_table_with_bulk
+      def test_timestamps_sets_precision_on_change_table_with_bulk
         ActiveRecord::Schema.define do
           create_table :has_timestamps
 
@@ -199,7 +199,7 @@ class ActiveRecordSchemaTest < ActiveRecord::TestCase
       end
     end
 
-    def test_timestamps_sets_presicion_on_add_timestamps
+    def test_timestamps_sets_precision_on_add_timestamps
       ActiveRecord::Schema.define do
         create_table :has_timestamps
         add_timestamps :has_timestamps, default: Time.now
diff --git a/activerecord/test/cases/migration/compatibility_test.rb b/activerecord/test/cases/migration/compatibility_test.rb
index 5753bd7117..eaf88bf698 100644
--- a/activerecord/test/cases/migration/compatibility_test.rb
+++ b/activerecord/test/cases/migration/compatibility_test.rb
@@ -242,9 +242,9 @@ module ActiveRecord
       private
         def precision_implicit_default
           if current_adapter?(:Mysql2Adapter)
-            { presicion: 0 }
+            { precision: 0 }
           else
-            { presicion: nil }
+            { precision: nil }
           end
         end
     end