Remotion.Linq.SqlBackend.SqlPreparation.MethodCallTransformers.StringLengthMethodCallTransformer.Transform C# (CSharp) Method

    public Expression Transform (MethodCallExpression methodCallExpression)
    {
      ArgumentUtility.CheckNotNull ("methodCallExpression", methodCallExpression);

      MethodCallTransformerUtility.CheckArgumentCount (methodCallExpression, 0);
      MethodCallTransformerUtility.CheckInstanceMethod (methodCallExpression);

      return new SqlLengthExpression (methodCallExpression.Object);
    }
  }

    public void Transform ()
    {
      var method = typeof (string).GetMethod ("get_Length", new Type[] { });
      var objectExpression = Expression.Constant ("Test");
      var expression = Expression.Call (objectExpression, method);
      var transformer = new StringLengthMethodCallTransformer ();

      var result = transformer.Transform (expression);

      var expectedResult = new SqlLengthExpression (objectExpression);

      SqlExpressionTreeComparer.CheckAreEqualTrees (expectedResult, result);
    }