fixed tests

Author: Circuit8

lib/active_record/connection_adapters/sqlserver/schema_creation.rb

@@ -3,7 +3,11 @@
 module ActiveRecord
   module ConnectionAdapters
     module SQLServer
-      class SchemaCreation < SchemaCreation
+      BASE_SCHEMA_CREATION_CLASS = ((ActiveRecord.version <=> Gem::Version.new("6.1")) != -1) ?
+        SchemaCreation :
+        AbstractAdapter::SchemaCreation
+
+      class SchemaCreation < BASE_SCHEMA_CREATION_CLASS
         private
 
         def visit_TableDefinition(o)

lib/active_record/connection_adapters/sqlserver/transaction.rb

@@ -31,10 +31,18 @@ def current_isolation_level
     module SQLServerRealTransaction
       attr_reader :starting_isolation_level
 
-      def initialize(connection, isolation: nil, joinable: true, run_commit_callbacks: false)
-        @connection = connection
-        @starting_isolation_level = current_isolation_level if isolation
-        super
+      if (ActiveRecord.version <=> Gem::Version.new("6.1")) != -1
+        def initialize(connection, **args)
+          @connection = connection
+          @starting_isolation_level = current_isolation_level if args[:isolation]
+          super
+        end
+      else
+        def initialize(connection, options, **args)
+          @connection = connection
+          @starting_isolation_level = current_isolation_level if options[:isolation]
+          super
+        end
       end
 
       def commit