Add test_float_limits to mysql2

This test case was definded by 51de8cee82d61541725ff4c2462b083f37e64017.
`float` and `double` is registered in abstract_mysql_adapter.rb,
we should test not only for mysql adapter, but mysql2 adapter.

2 files changed, 48 insertions, 12 deletions

diff --git a/activerecord/test/cases/adapters/mysql/schema_test.rb b/activerecord/test/cases/adapters/mysql/schema_test.rb
index a0f3c31e78..566324dcae 100644
--- a/activerecord/test/cases/adapters/mysql/schema_test.rb
+++ b/activerecord/test/cases/adapters/mysql/schema_test.rb
@@ -18,12 +18,6 @@ module ActiveRecord
           self.table_name = "#{db}.#{table}"
           def self.name; 'Post'; end
         end
-
-        @connection.create_table "mysql_doubles"
-      end
-
-      teardown do
-        @connection.drop_table "mysql_doubles", if_exists: true
       end
 
       class MysqlDouble < ActiveRecord::Base
@@ -31,13 +25,16 @@ module ActiveRecord
       end
 
       def test_float_limits
-        @connection.add_column :mysql_doubles, :float_no_limit, :float
-        @connection.add_column :mysql_doubles, :float_short, :float, limit: 5
-        @connection.add_column :mysql_doubles, :float_long, :float, limit: 53
+        @connection.create_table :mysql_doubles do |t|
+          t.float :float_no_limit
+          t.float :float_short, limit: 5
+          t.float :float_long, limit: 53
+
+          t.float :float_23, limit: 23
+          t.float :float_24, limit: 24
+          t.float :float_25, limit: 25
+        end
 
-        @connection.add_column :mysql_doubles, :float_23, :float, limit: 23
-        @connection.add_column :mysql_doubles, :float_24, :float, limit: 24
-        @connection.add_column :mysql_doubles, :float_25, :float, limit: 25
         MysqlDouble.reset_column_information
 
         column_no_limit = MysqlDouble.columns.find { |c| c.name == 'float_no_limit' }
@@ -56,6 +53,8 @@ module ActiveRecord
         assert_equal 24, column_23.limit
         assert_equal 24, column_24.limit
         assert_equal 53, column_25.limit
+      ensure
+        @connection.drop_table "mysql_doubles", if_exists: true
       end
 
       def test_schema
diff --git a/activerecord/test/cases/adapters/mysql2/schema_test.rb b/activerecord/test/cases/adapters/mysql2/schema_test.rb
index 1ebdca661c..17e674e652 100644
--- a/activerecord/test/cases/adapters/mysql2/schema_test.rb
+++ b/activerecord/test/cases/adapters/mysql2/schema_test.rb
@@ -20,6 +20,43 @@ module ActiveRecord
         end
       end
 
+      class MysqlDouble < ActiveRecord::Base
+        self.table_name = "mysql_doubles"
+      end
+
+      def test_float_limits
+        @connection.create_table :mysql_doubles do |t|
+          t.float :float_no_limit
+          t.float :float_short, limit: 5
+          t.float :float_long, limit: 53
+
+          t.float :float_23, limit: 23
+          t.float :float_24, limit: 24
+          t.float :float_25, limit: 25
+        end
+
+        MysqlDouble.reset_column_information
+
+        column_no_limit = MysqlDouble.columns.find { |c| c.name == 'float_no_limit' }
+        column_short = MysqlDouble.columns.find { |c| c.name == 'float_short' }
+        column_long = MysqlDouble.columns.find { |c| c.name == 'float_long' }
+
+        column_23 = MysqlDouble.columns.find { |c| c.name == 'float_23' }
+        column_24 = MysqlDouble.columns.find { |c| c.name == 'float_24' }
+        column_25 = MysqlDouble.columns.find { |c| c.name == 'float_25' }
+
+        # Mysql floats are precision 0..24, Mysql doubles are precision 25..53
+        assert_equal 24, column_no_limit.limit
+        assert_equal 24, column_short.limit
+        assert_equal 53, column_long.limit
+
+        assert_equal 24, column_23.limit
+        assert_equal 24, column_24.limit
+        assert_equal 53, column_25.limit
+      ensure
+        @connection.drop_table "mysql_doubles", if_exists: true
+      end
+
       def test_schema
         assert @omgpost.first
       end