public void TestCommonShareDividendYieldCalculation(double lastdividend, int parValue, double price,
double expectedValue)
{
CommonStock commonStock = new CommonStock("Test", lastdividend, parValue);
Assert.AreEqual(commonStock.CalculateDividendYield(price), expectedValue);
}
public void TestInvalidPriceInYieldCalcThrowsException(double price)
{
CommonStock commonStock = new CommonStock("Test", 8, 100);
CommonStock preferedStock = new PreferredStock("Test", 8, 100, 0.02);
Assert.Throws <ArgumentOutOfRangeException>(() => commonStock.CalculateDividendYield(price));
Assert.Throws <ArgumentOutOfRangeException>(() => preferedStock.CalculateDividendYield(price));
}
public void CalculateDividendYield_WithZeroPrice_ThrowsArgumentException()
{
// Arrange
var stock = new CommonStock
{
LastDividend = 20
};
// Act
var testDelegate = new TestDelegate(() => stock.CalculateDividendYield(0));
// Assert
Assert.That(testDelegate, Throws.ArgumentException);
}
public decimal CalculateDividendYield_WithNonZeroPriceAndPositiveDividend_CorrectlyCalculates(decimal price)
{
// Arrange
var stock = new CommonStock
{
LastDividend = 10
};
// Act
var result = stock.CalculateDividendYield(price);
// Assert
return(result);
}