Extend DataUnitTest

How I can extend the capability of the DatabaseUnitTest?

I want to log the execution result of my UnitTests in my database.

I created a class that will insert data in my database

class LogUnitTest
{
    public static void LogPassedTest(string res)
    {
        using (var conn = new SqlConnection("myConnection"))
        using (var command = new SqlCommand("InsertTestResult", conn))
        {
            conn.Open();
            command.CommandType = CommandType.StoredProcedure;
            command.Parameters.Add(new SqlParameter("@Output", "Passed"));
            command.ExecuteNonQuery();
        }
    }
}

I edit my unit test

    public void Training_uspInsertHorseHealthHKJC()
    {
        try
        {
            SqlDatabaseTestActions testActions = this.Training_uspInsertOrderData;

            // Execute the pre-test script
            // 
            System.Diagnostics.Trace.WriteLineIf((testActions.PretestAction != null), "Executing pre-test script...");
            SqlExecutionResult[] pretestResults = TestService.Execute(this.PrivilegedContext, this.PrivilegedContext, testActions.PretestAction);
            // Execute the test script
            // 
            System.Diagnostics.Trace.WriteLineIf((testActions.TestAction != null), "Executing test script...");
            SqlExecutionResult[] testResults = TestService.Execute(this.ExecutionContext, this.PrivilegedContext, testActions.TestAction);
            // Execute the post-test script
            // 
            System.Diagnostics.Trace.WriteLineIf((testActions.PosttestAction != null), "Executing post-test script...");
            SqlExecutionResult[] posttestResults = TestService.Execute(this.PrivilegedContext, this.PrivilegedContext, testActions.PosttestAction);

            LogUnitTest.LogPassedTest("Passed");


        }
        catch(Exception ex )
        {
            LogUnitTest.LogPassedTest(ex.ToString());
        }
    }

But my unitest always log the result as passed even though I know that this should return an error.