System.Linq.Expressions.Expression.Negate C# (CSharp) Method

        public static UnaryExpression Negate(Expression expression, MethodInfo method)
        {
            RequiresCanRead(expression, nameof(expression));
            if (method == null)
            {
                if (expression.Type.IsArithmetic() && !expression.Type.IsUnsignedInt())
                {
                    return new UnaryExpression(ExpressionType.Negate, expression, expression.Type, null);
                }
                return GetUserDefinedUnaryOperatorOrThrow(ExpressionType.Negate, "op_UnaryNegation", expression);
            }
            return GetMethodBasedUnaryOperator(ExpressionType.Negate, expression, method);
        }

        public void Method()
        {
            var expected =
                LinqExpression.Negate(
                    LinqExpression.Default(
                        typeof(bool)),
                    typeof(SampleClass).GetMethod(nameof(SampleClass.StaticFunctionWithArgument)));

            var actual = $@"
@prefix : <http://example.com/> .
@prefix xt: <http://example.com/ExpressionTypes/> .

:s
    :unaryExpressionType xt:Negate ;
    :unaryOperand [
        :defaultType [
            :typeName ""System.Boolean"" ;
        ] ;
    ] ;
    :unaryMethod [
        :memberType [
            :typeName ""GraphEngine.Tests.SampleClass, GraphEngine.Tests"" ;
        ] ;
        :memberName ""StaticFunctionWithArgument"" ;
    ] ;
.
";

            ShouldBe(actual, expected);
        }