public void Given_in_a_portfolio_a_position_weighting_may_be_larger_or_smaller_than_its_benchmark_weighting_for_a_given_stock_When_the_tracking_error_for_one_stock_will_always_be_a_positive_number()
{
// Criteria 3A
//* Given a position's weighting (%) may be larger or smaller than it's equivalent benchmark
//* weighting (%) for a given stock
//* When the tracking error for one stock is calculated
//* Then this will always be a positive number (i.e. an absolute difference)
//Arrange
var robo = new Stock()
{
Symbol = "ROBO"
};
//Act
var actual = fm.CalculateFundPerformanceByStock(robo);
// Fund weight of ROBO stock = 23.68
// Benchmark Index weightage for ROBO = 25
// Error = Fund weightage - Index weightage = -1.32
// Expected absolute value of Error = 1.32
var expected = 1.32M;
// Assert
Assert.AreEqual(expected, actual.Error);
}
public void Given_UK_Equity_Tracker_closely_resembles_the_UK_Corporate_Benchmark_When_there_is_a_stock_symbol_within_both_the_fund_and_the_benchmark_Then_return_the_stock_symbol_with_both_the_position_weighting_and_the_benchmark_weighting()
{
//Criteria 2A
//* Given the UK Equity Tracker closely resembles the UK Corporate Benchmark
//* When there is a stock symbol within both the fund and the benchmark
//* Then return the stock symbol with both the position weighting (as %) and the benchmark weighting (as %)
//Arrange
var robo = new Stock()
{
Symbol = "ROBO"
};
//Act
var actual = fm.CalculateFundPerformanceByStock(robo);
var expected = new PerformanceIndicator()
{
FundWeightage = 18.38M,
IndexWeightage = 25.00M,
Stock = robo
};
// Assert
Assert.AreEqual(expected, actual);
}