tSQLt fails when attempting to FakeTable a synonym table

I am using tSQLt (through Red Gate’s SQL Test version 1.0.0.455). tSQLt is installed on database A. I am trying to do a tSQLt.FakeTable on a table in database B on the same SQL server instance through a synonym on database A.

Code:

ALTER PROCEDURE [ErrorType109NonTankHasSizeOrVolume].[test AliasTest] AS

BEGIN
Exec tSQLt.FakeTable ‘dbo.Bygning’;

Insert Into dbo.Bygning (ObjStatus) Values (1);

EXEC tSQLt.AssertEquals 1, 1
END;

Where dbo.Bygning is a synonym in database A referring to a table in database B and ObjStatus is a column in dbo.Bygning

Error message:

Transaction count after EXECUTE indicates a mismatching number of BEGIN and COMMIT statements. Previous count = 0, current count = 1.

Transaction count after EXECUTE indicates a mismatching number of BEGIN and COMMIT statements. Previous count = 0, current count = 1.

Transaction count after EXECUTE indicates a mismatching number of BEGIN and COMMIT statements. Previous count = 0, current count = 1.

[ErrorType109NonTankHasSizeOrVolume].[test AliasTest] failed: An invalid parameter or option was specified for procedure 'sp_addextendedproperty'.{sp_addextendedproperty,37}

Is there any way to tSQLt.FakeTable synonym tables?

Clarification: The error message comes when running the test.

Answer

tSQLt does not support faking on synonyms at the moment. However, I think it may be easy to add support for this. I quickly prototyped the following fix and hope it may solve your issue. Can you please try it and confirm? If it works out for you, I’ll make sure it gets into the next release.

ALTER PROCEDURE tSQLt.Private_MarkFakeTable
  @SchemaName NVARCHAR(MAX),
  @TableName NVARCHAR(MAX),
  @NewNameOfOriginalTable NVARCHAR(4000)
AS
BEGIN
   DECLARE @UnquotedSchemaName NVARCHAR(MAX);SET @UnquotedSchemaName = OBJECT_SCHEMA_NAME(OBJECT_ID(@SchemaName+'.'+@TableName));
   DECLARE @UnquotedTableName NVARCHAR(MAX);SET @UnquotedTableName = OBJECT_NAME(OBJECT_ID(@SchemaName+'.'+@TableName));
   DECLARE @Level1Type NVARCHAR(MAX);

   SELECT @Level1Type = 
     CASE type
       WHEN 'SN' THEN 'SYNONYM'
       ELSE 'TABLE'
     END
   FROM sys.objects
   WHERE object_id = OBJECT_ID(@SchemaName+'.'+@TableName);


   EXEC sys.sp_addextendedproperty 
      @name = N'tSQLt.FakeTable_OrgTableName', 
      @value = @NewNameOfOriginalTable, 
      @level0type = N'SCHEMA', @level0name = @UnquotedSchemaName, 
      @level1type = N'TABLE',  @level1name = @UnquotedTableName;
END;
GO