public void ToStringReturnsValue()
{
const int constant = 5;
var constantTerm = new ConstantTerm(constant);
Assert.AreEqual(constant.ToString(), constantTerm.ToString());
}
public void ConstantTerm_ToStringTest()
{
// setup test
IExpressionTerm term = new ConstantTerm(3);
// run test
string result = term.ToString();
// validate results
Assert.IsFalse(string.IsNullOrEmpty(result));
Assert.AreEqual("3", result);
}