Arithmetica.Tests.MathExpressionContextTests.MathExpressionContext_Undefined_Variable_Throws C# (CSharp) Метод

        public void MathExpressionContext_Undefined_Variable_Throws()
        {
            MathExpressionContext context = new MathExpressionContext();
            var exception = Assert.Throws<MathExpressionException>(() => context.Resolve("x"));
            Assert.AreEqual("The variable 'x' has not been defined.", exception.Message);
        }