public void TestToDictionaryWhenThrowingExceptions()
{
List <Employee> employees = null;
Func <Employee, int> myKeyFunc = (x) => x.ID;
Func <Employee, string> myElementFunc = (x) => x.FirstName;
Assert.Throws <ArgumentNullException>(() => LINQFunctions.ToDictionary(employees, p => myKeyFunc(p), z => myElementFunc(z)));
employees = new List <Employee>();
var firstEmployee = new Employee()
{
ID = 1, FirstName = "Andrei", LastName = "Popescu"
};
var secondEmployee = new Employee()
{
ID = 1, FirstName = "Mihai", LastName = "Andreescu"
};
employees.Add(firstEmployee);
employees.Add(secondEmployee);
Assert.Throws <ArgumentException>(() => LINQFunctions.ToDictionary(employees, p => myKeyFunc(p), z => myElementFunc(z)));
}
public void TestToDictionary()
{
var employees = Employee.GetEmployees();
Func <Employee, int> myKeyFunc = (x) => x.ID;
Func <Employee, string> myElementFunc = (x) => x.FirstName;
var dictionary = LINQFunctions.ToDictionary(employees, p => myKeyFunc(p), z => myElementFunc(z));
var kvp1 = new KeyValuePair <int, string>(104, "Anurag");
var kvp2 = new KeyValuePair <int, string>(105, "Sambit");
var kvp3 = new KeyValuePair <int, string>(106, "Sushanta");
var kvp4 = new KeyValuePair <int, string>(101, "Preety");
var kvp5 = new KeyValuePair <int, string>(103, "Hina");
var kvp6 = new KeyValuePair <int, string>(102, "Priyanka");
var kvp7 = new KeyValuePair <int, string>(109, "Andrei");
Assert.True(dictionary.Contains(kvp1));
Assert.True(dictionary.Contains(kvp2));
Assert.True(dictionary.Contains(kvp3));
Assert.True(dictionary.Contains(kvp4));
Assert.True(dictionary.Contains(kvp5));
Assert.True(dictionary.Contains(kvp6));
Assert.False(dictionary.Contains(kvp7));
}
