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

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

      MethodCallTransformerUtility.CheckArgumentCount (methodCallExpression, 1);
      MethodCallTransformerUtility.CheckInstanceMethod (methodCallExpression);

      return SqlLikeExpression.Create (methodCallExpression.Object, methodCallExpression.Arguments[0], "%", "%");
    }

    public void Transform_ArgumentIsNotNull ()
    {
      var method = typeof (string).GetMethod ("Contains", new[] { typeof (string) });
      var objectExpression = Expression.Constant ("Test");
      var argument1 = Expression.Constant ("test");
      var expression = Expression.Call (objectExpression, method, argument1);
      var transformer = new ContainsMethodCallTransformer();

      var result = transformer.Transform (expression);

      var rightExpression = Expression.Constant (string.Format ("%{0}%", argument1.Value));
      var expectedResult = new SqlLikeExpression (objectExpression, rightExpression, new SqlLiteralExpression (@"\"));

      SqlExpressionTreeComparer.CheckAreEqualTrees (expectedResult, result);
    }