public void Check_For_Divide_by_0()
{
int a = 1, b = 0;
object result = CalcFunctions.Divide(a, b);
Assert.AreEqual(result.ToString(), "DIV BY 0");
}
public void CalculateCurrentAnswerSyntaxErrorTest()
{
double currentAnswer = 123.4;
string currentInput = "1,54,";
string previousOperator = "+";
CalcFunctions.CalculateCurrentAnswer(currentAnswer, currentInput, previousOperator);
}
public void CalcFunctions_Subtract_Two_Double_Numbers()
{
double a = 2.393, b = 4.9393;
double result = (double)CalcFunctions.Subtract(a, b);
Assert.AreEqual(result, a - b);
}
public void CalcFunctions_Multiply_Two_Double_Numbers()
{
double a = 2.393, b = 4.9393;
double result = (double)CalcFunctions.Multiply(a, b);
Assert.AreEqual(result, a * b);
}
public void CalcFunctions_Divide_Two_Double_Numbers()
{
double a = 2.393, b = 4.9393;
double result = (double)CalcFunctions.Divide(a, b);
Assert.AreEqual(result, a / b);
}
public void CalcFunctions_Add_Two_Double_Numbers()
{
double a = 2.393, b = 4.9393;
double result = (double)CalcFunctions.Add(a, b);
Assert.AreEqual(result, a + b);
}
public void CalcFunctions_Subtract_Two_Numbers()
{
int a = 1, b = 2;
int result = (int)CalcFunctions.Subtract(b, a);
Assert.AreEqual(result, b - a);
}
public void CalcFunctions_Multiply_Two_Numbers()
{
int a = 2, b = 3;
int result = (int)CalcFunctions.Multiply(a, b);
Assert.AreEqual(result, a * b);
}
public void CalculateCurrentAnswerDivideByZeroTest()
{
double currentAnswer = 123.4;
string currentInput = "0";
string previousOperator = "/";
CalcFunctions.CalculateCurrentAnswer(currentAnswer, currentInput, previousOperator);
}
public void CalcFunctions_Subtract_Int_And_Double_Numbers()
{
double a = 12.392;
int b = 5;
double result = (double)CalcFunctions.Subtract(a, b);
Assert.AreEqual(result, a - b);
}
public void CalcFunctions_Add_Int_And_Double_Numbers()
{
double a = 32.32232;
int b = 5;
double result = (double)CalcFunctions.Add(a, b);
Assert.AreEqual(result, a + b);
}
public void Check_For_Integer_Underflow_Sub()
{
int a = Int32.MinValue;
int b = 1;
object result = CalcFunctions.Subtract(a, b);
Assert.AreEqual(result.ToString(), "UNDERFLOW");
}
public void Check_For_Integer_Overflow_Add()
{
int a = Int32.MaxValue;
int b = 1;
object result = CalcFunctions.Add(a, b);
Assert.AreEqual(result.ToString(), "OVERFLOW");
}
public void CalcFunctions_Divide_Int_Double_Numbers()
{
double a = 9.32314;
int b = 3;
double result = (double)CalcFunctions.Divide(a, b);
Assert.AreEqual(result, a / b);
}
public void CalcFunctions_Multiply_Int_And_Double_Numbers()
{
double a = 2.3939;
int b = 9;
double result = (double)CalcFunctions.Multiply(a, b);
Assert.AreEqual(result, a * b);
}
public void CalcFunctions_add_Two_Numbers()
{
//Arrange
int a = 1, b = 2;
//Act
int result = (int)CalcFunctions.Add(a, b);
//Assert
Assert.AreEqual(result, a + b);
}
public void CalculateCurrentAnswerTest()
{
double currentAnswer = 123.4;
string currentInput = "1";
string previousOperator = "+";
currentAnswer = CalcFunctions.CalculateCurrentAnswer(currentAnswer, currentInput, previousOperator).Item2;
Assert.AreEqual(124.4, currentAnswer);
currentInput = "1,4";
previousOperator = "-";
currentAnswer = CalcFunctions.CalculateCurrentAnswer(currentAnswer, currentInput, previousOperator).Item2;
Assert.AreEqual(123, currentAnswer);
currentInput = "2";
previousOperator = "*";
currentAnswer = CalcFunctions.CalculateCurrentAnswer(currentAnswer, currentInput, previousOperator).Item2;
Assert.AreEqual(246, currentAnswer);
currentInput = "2";
previousOperator = "/";
currentAnswer = CalcFunctions.CalculateCurrentAnswer(currentAnswer, currentInput, previousOperator).Item2;
Assert.AreEqual(123, currentAnswer);
}