public void TestPreferredStockYield()
{
// Test Preferred Stock
PreferredStock stock;
stock = new PreferredStock("TST", 10, 0, 100);
float yield;
// Test 0*100/50 => 0
yield = stock.GetDividendYield(50);
Assert.AreEqual(0, yield, float.Epsilon);
// Test 0.1*100/10 => 1
stock.FixedDividend = 0.1f;
yield = stock.GetDividendYield(10);
Assert.AreEqual(1, yield, float.Epsilon);
// Test 0.1*100/0 => NaN
yield = stock.GetDividendYield(0);
Assert.AreEqual(float.NaN, yield);
// LastPrice
stock = new PreferredStock("TST", 10, 0, 100);
// Test 0*100/50 => 0
stock.LastPrice = 50;
yield = stock.GetDividendYield();
Assert.AreEqual(0, yield, float.Epsilon);
// Test 0.1*100/10 => 1
stock.LastPrice = 10;
stock.FixedDividend = 0.1f;
yield = stock.GetDividendYield();
Assert.AreEqual(1, yield, float.Epsilon);
// Test 0.1*100/0 => NaN
stock.LastPrice = 0;
yield = stock.GetDividendYield();
Assert.AreEqual(float.NaN, yield);
}
public void TestPreferredStockPERatio()
{
// Test Preferred Stock
PreferredStock stock;
stock = new PreferredStock("TST", 10, 1, 100);
float pe;
// Test 0/10 => 0
pe = stock.GetPERatio(0);
Assert.AreEqual(0, pe, float.Epsilon);
// Test 10/10 => 1
pe = stock.GetPERatio(10);
Assert.AreEqual(1, pe, float.Epsilon);
// Test 10/0 => NaN
stock.LastDividend = 0;
pe = stock.GetPERatio(10);
Assert.AreEqual(float.NaN, pe);
// LastPrice
stock = new PreferredStock("TST", 10, 1, 100);
// Test 0/10 => 0
stock.LastPrice = 0;
pe = stock.GetPERatio();
Assert.AreEqual(0, pe, float.Epsilon);
// Test 10/10 => 1
stock.LastPrice = 10;
pe = stock.GetPERatio();
Assert.AreEqual(1, pe, float.Epsilon);
// Test 10/0 => NaN
stock.LastPrice = 10;
stock.LastDividend = 0;
pe = stock.GetPERatio();
Assert.AreEqual(float.NaN, pe);
}