public void Variables_1()
{
var query = new MockQuery(_connection, "SELECT * FROM TABLE1 {WHERE {COLUMN1 [Variable1]}}");
var variable = "= 'Some Value'";
query.DefineVariable("Variable1", variable);
var cmd = query.CreateCommand();
Assert.IsNotNull(cmd);
Assert.AreEqual(CommandType.Text, cmd.CommandType);
Assert.AreEqual($"SELECT * FROM TABLE1 WHERE COLUMN1 {variable}", cmd.CommandText);
}