AjErl.Tests.Expressions.MultiFunExpressionTests.RaiseIfArityIsWrong C# (CSharp) Method

        public void RaiseIfArityIsWrong()
        {
            Context context = new Context();
            FunExpression expr1 = this.MakeExpression("fun(0) -> 1 end.");
            FunExpression expr2 = this.MakeExpression("fun(1) -> 1 end.");
            FunExpression expr3 = this.MakeExpression("fun(X, Y) -> f(X-1) + f(X-2) end.");
            MultiFunExpression mexpr = new MultiFunExpression(new FunExpression[] { expr1, expr2, expr3 });

            try
            {
                mexpr.Evaluate(context);
                Assert.Fail();
            }
            catch (Exception ex)
            {
                Assert.AreEqual("head mismatch", ex.Message);
            }
        }