public void DefineOperation_BinaryAlreadyExists_ShouldThrow()
{
var calculator = new CalculatorEngine();
calculator.DefineOperation("+", (x, y) => x + y);
Assert.Throws <AlreadyExistsOperationException>(() =>
{
calculator.DefineOperation("+", (x, y) => x + y);
});
}
public override double calculate(List <double> arguments, CalculatorEngine engine)
{
switch (arguments.Count)
{
case 1: return(random.NextDouble() * arguments[0]);
case 2: return(arguments[0] + (arguments[1] - arguments[0]) * random.NextDouble());
default: throw new ExpressionInvalidException("invalidRandomNumArgs");
}
}
public override double calculate(List <double> arguments, CalculatorEngine engine)
{
foreach (double num in arguments)
{
if (num > 0)
{
return(1);
}
}
return(0);
}
public void DefineOperation_TernaryAlreadyExists_ShouldThrow()
{
var calculator = new CalculatorEngine();
calculator.DefineOperation("whatever", (x, y, z) => x + y + z);
Assert.Throws <AlreadyExistsOperationException>(() =>
{
calculator.DefineOperation("whatever", (x, y, z) => x + y + z);
});
}
public void PerformOperation_Ternary_ShouldCalculate()
{
var calculator = new CalculatorEngine();
calculator.DefineOperation("T5", (x, y, z) => Math.Min(x, Math.Min(y, z)));
var operation = new Operation("T5", new[] { 2.0, 3.0, 6.0 });
var actual = calculator.PerformOperation(operation);
Assert.That(actual, Is.EqualTo(2.0).Within(0.001), "Incorrect calculation result");
}
public void PerformOperation_Binary_ShouldCalculate()
{
var calculator = new CalculatorEngine();
calculator.DefineOperation("*", (x, y) => x * y);
var operation = new Operation("*", new[] { 5.0, 3.0 });
var actual = calculator.PerformOperation(operation);
Assert.That(actual, Is.EqualTo(15.0).Within(0.001), "Incorrect calculation result");
}
public void PerformOperation_Unary_ShouldCalculate()
{
var calculator = new CalculatorEngine();
calculator.DefineOperation("++", x => x + 1);
var operation = new Operation("++", new[] { 3.0 });
var actual = calculator.PerformOperation(operation);
Assert.That(actual, Is.EqualTo(4.0).Within(0.001), "Incorrect calculation result");
}
public void ShouldReturn7WhenDivide35To5()
{
//arrange
var calculator = new CalculatorEngine();
//act
Int32 realExeption = calculator.Divide(35, 5);
Int32 simulateExeption = 35 / 5;
//assert
Assert.AreEqual(realExeption, simulateExeption);
}
public void ShouldReturn15WhenMultiply5To3()
{
//arrange
var calculator = new CalculatorEngine();
//act
Int32 realExeption = calculator.Multiply(5, 3);
Int32 simulateExeption = 5 * 3;
//assert
Assert.AreEqual(realExeption, simulateExeption);
}
public void ShouldReturn2WhenSubstract7To5()
{
//arrange
var calculator = new CalculatorEngine();
//act
Int32 realExeption = calculator.Substract(7, 5);
Int32 simulateExeption = 7 - 5;
//assert
Assert.AreEqual(realExeption, simulateExeption);
}
public void ShouldReturn5WhenAdd2To3()
{
//arrange
var calculator = new CalculatorEngine();
//act
Int32 realExeption = calculator.Add(2, 3);
Int32 simulateExeption = 2 + 3;
//assert
Assert.AreEqual(realExeption,simulateExeption);
}
public override double calculate(List <double> arguments, CalculatorEngine engine)
{
if (arguments.Count > 4)
{
throw new ExpressionInvalidException("invalidTimeNumArgs");
}
while (arguments.Count < 4)
{
arguments.Add(0);
}
return(arguments[0] + arguments[1] / 24 + arguments[2] / 1440 + arguments[3] / 86400);
}
public override double calculate(List <double> arguments, CalculatorEngine engine)
{
if (arguments.Count > 3)
{
throw new ExpressionInvalidException("invalidIfNumArgs");
}
while (arguments.Count < 3)
{
arguments.Add(0);
}
return(arguments[0] > 0 ? arguments[1]: arguments[2]);
}
public void Calculate_BasicNegativeDivide_Test()
{
string firstOperand = "-4";
string secondOperand = "2";
string expected = "-2";
string actual;
CalculatorEngine engine = new CalculatorEngine();
actual = engine.calculate("÷", firstOperand, secondOperand);
Assert.AreEqual(expected, actual);
}
public void Calculate_DivideByZero_Test()
{
string firstOperand = "4";
string secondOperand = "0";
string expected = "E";
string actual;
CalculatorEngine engine = new CalculatorEngine();
actual = engine.calculate("÷", firstOperand, secondOperand);
Assert.AreEqual(expected, actual);
}
public void Calculate_BasicPlus_Test()
{
string firstOperand = "1";
string secondOperand = "2";
string expected = "3";
string actual;
CalculatorEngine engine = new CalculatorEngine();
actual = engine.calculate("+", firstOperand, secondOperand);
Assert.AreEqual(expected, actual);
}
protected override void OnCreate(Bundle bundle)
{
base.OnCreate(bundle);
// Set our view from the "main" layout resource
SetContentView(Resource.Layout.Main);
calculatorEngine = new CalculatorEngine();
calculatorEngine.PropertyChanged += CalculatorPropertyChanged;
var gridView = FindViewById <GridView> (Resource.Id.buttonGridView);
gridView.Adapter = new ButtonAdapter(this, OnCalculatorKeyPress);
}
public override double calculate(List <double> arguments, CalculatorEngine engine)
{
if (arguments.Count < 2)
{
throw new ExpressionInvalidException("invalidComparisonNumArgs");
}
for (int i = 1; i < arguments.Count; i++)
{
if (arguments[i] != arguments[0])
{
return(0);
}
}
return(1);
}
public void Calculate_TernaryParametersMismatch_ShouldThrow()
{
var calculator = new CalculatorEngine();
calculator.DefineOperation("+", (x, y, z) => x + y + z);
Assert.Throws <ParametersCountMismatchException>(() =>
{
calculator.PerformOperation(new Operation("+", new double[] { 1 }));
});
Assert.Throws <ParametersCountMismatchException>(() =>
{
calculator.PerformOperation(new Operation("+", new double[] { 1, 2 }));
});
}
public override double calculate(List <double> arguments, CalculatorEngine engine)
{
double min = 0;
bool isFirst = true;
foreach (double num in arguments)
{
if (isFirst)
{
isFirst = false;
min = num;
}
else if (num < min)
{
min = num;
}
}
return(min);
}
public override double calculate(List <double> arguments, CalculatorEngine engine)
{
double total = 0;
foreach (double argument in arguments)
{
total += argument;
}
double n = Math.Floor(total);
if (n < 0)
{
throw new ExpressionInvalidException("invalidFactorialArg");
}
total = 1;
for (double i = 1; i <= n; i += 1)
{
total *= i;
}
return(total);
}
public override double calculate(List <double> arguments, CalculatorEngine engine)
{
if (arguments.Count == 1)
{
double r = Math.Floor(Math.Abs(arguments[0]));
return(r == 0 ? 1 : r);
}
double res = Math.Floor(Math.Abs(arguments[0]));
for (int i = 1; i < arguments.Count; i++)
{
double n = Math.Floor(Math.Abs(arguments[i]));
while (n != 0)
{
double temp = n;
n = mod(res, n);
res = temp;
}
}
return(res);
}
public void Calculate_ArgumentOutOfRange_ShouldThrow()
{
var calculator = new CalculatorEngine();
var sqrt = new Func <double, double>(
x =>
{
if (x < 0)
{
throw new ArgumentOutOfRangeException();
}
return(Math.Sqrt(x));
});
calculator.DefineOperation("sqrt", sqrt);
Assert.Throws <ArgumentOutOfRangeException>(() =>
{
calculator.PerformOperation(new Operation("sqrt", new double[] { -4 }));
});
}
public override double calculate(List <double> arguments, CalculatorEngine engine)
{
if (arguments.Count == 1)
{
return(Math.Floor(Math.Abs(arguments[0])));
}
double res = Math.Floor(Math.Abs(arguments[0]));
for (int i = 1; i < arguments.Count; i++)
{
double n = Math.Floor(Math.Abs(arguments[i]));
double t = n;
double t2 = res;
while (t2 != 0)
{
double temp = t2;
t2 = mod(n, t2);
n = temp;
}
res = div(res * t, n);
}
return(res);
}
public abstract double calculate(double val1, double val2, CalculatorEngine engine);
public override double calculate(double val1, double val2, CalculatorEngine engine)
{
throw new ExpressionInvalidException("braceInvolved");
}
public void Init()
{
calculatorEngine = new CalculatorEngine();
}
public void Setup()
{
//Arrange
calcEngine = new CalculatorEngine();
}
public void TestSubtractMethod()
{
double result = CalculatorEngine.Subtract(10.0, 20.0);
Assert.AreEqual(-10.0, result);
}
public void TestAddMethod()
{
double result = CalculatorEngine.Add(10.0, 20.0);
Assert.AreEqual(30.0, result);
}
public void CreateCalculatorEngine()
{
engine = new CalculatorEngine();
}
public override double calculate(double val1, double val2, CalculatorEngine engine)
{
return(val1 * val2);
}
public override double calculate(double val1, double val2, CalculatorEngine engine)
{
return(CoreUtils.power(val1, val2, engine));
}
public void Setup()
{
display = new CalculatorDisplay();
calculator = new CalculatorEngine(display);
rnd = new Random(123);
}
