Using only NUnit's Assert.AreEqual method, write tests for the Account class that cover the following cases:

  • The Deposit and Withdraw methods will not accept negative numbers.
  • Account cannot overstep its overdraft limit.
  • The Deposit and Withdraw methods will deposit or withdraw the correct amount, respectively.
  • The Withdraw and Deposit methods return the correct results.
public class Account
{
    public double Balance { get; private set; }
    public double OverdraftLimit { get; private set; }

    public Account(double overdraftLimit)
    {
        this.OverdraftLimit = overdraftLimit > 0 ? overdraftLimit : 0;
        this.Balance = 0;
    }

    public bool Deposit(double amount)
    {
        if (amount >= 0)
        {
            this.Balance += amount;
            return true;
        }
        return false;
    }

    public bool Withdraw(double amount)
    {
        if (this.Balance - amount >= -this.OverdraftLimit && amount >= 0)
        {
            this.Balance -= amount;
            return true;
        }
        return false;
    }
}

Each of the test case methods should be in the Tester class and have the Test attribute.

C# 7.0, .NET Framework 4.7 
 

  •   The Deposit and Withdraw methods will not accept negative numbers: Wrong answer
  •   Account cannot overstep its overdraft limit: Wrong answer
  •   The Deposit and Withdraw methods will deposit or withdraw the correct amount, respectively: Wrong answer
  •   The Withdraw and Deposit methods return the correct results: Wrong answer

Tags
C# Test case design Public
Easy

20min

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