public void TestTask2FiredEvents()
{
var cities = new Cities();
cities.ReadCities(CitiesTestFile);
var links = new Links(cities);
// test available cities
links.RouteRequested += (sender, e) =>
{
Assert.AreEqual("Bern", e.FromCity.Name);
Assert.AreEqual("Zürich", e.ToCity.Name);
};
links.FindShortestRouteBetween("Bern", "Zürich", TransportMode.Rail);
// test case insensitivity
links.FindShortestRouteBetween("BeRN", "ZüRiCh", TransportMode.Rail);
// test not existing cities
links = new Links(cities);
links.RouteRequested += (sender, e) =>
{
Assert.Fail("Listeners should only be informed about valid requests.");
};
try
{
links.FindShortestRouteBetween("doesNotExist", "either", TransportMode.Rail);
Assert.Fail("Should throw KeyNotFoundException when called with invalid city names.");
}
catch (KeyNotFoundException)
{
}
}
public void TestTask4FindRoutes()
{
var cities = new Cities();
cities.ReadCities(CitiesTestFile);
var expectedLinks = new List <Link>();
expectedLinks.Add(new Link(new City("Zürich", "Switzerland", 7000, 1, 2),
new City("Aarau", "Switzerland", 7000, 1, 2), 0));
expectedLinks.Add(new Link(new City("Aarau", "Switzerland", 7000, 1, 2),
new City("Liestal", "Switzerland", 7000, 1, 2), 0));
expectedLinks.Add(new Link(new City("Liestal", "Switzerland", 7000, 1, 2),
new City("Basel", "Switzerland", 7000, 1, 2), 0));
var links = new Links(cities); //eingelesene Städte nun in Links sichtbar.
/* lab04 - 1.c): Ignorieren Sie beim Einlesen in Links.ReadRoutes Verbindungen
* zwischen unbekannten Städten.
* Bsp: Schaffhausen nicht in citiesTestDataLab4, aber in linksTestDataLab4. */
links.ReadLinks(LinksTestFile);
Assert.AreEqual(28, cities.Count);
// test available cities
var route = links.FindShortestRouteBetween("Zürich", "Basel", TransportMode.Rail);
Assert.IsNotNull(route);
Assert.AreEqual(route.Count, expectedLinks.Count);
for (var i = 0; i < route.Count; i++)
{
Assert.IsTrue(
(expectedLinks[i].FromCity.Name == route[i].FromCity.Name &&
expectedLinks[i].ToCity.Name == route[i].ToCity.Name) ||
(expectedLinks[i].FromCity.Name == route[i].ToCity.Name &&
expectedLinks[i].ToCity.Name == route[i].FromCity.Name));
}
// test some other route
route = links.FindShortestRouteBetween("Zürich", "Milano", TransportMode.Rail);
Assert.AreEqual(5, route.Count);
// test when no routes can be found
route = links.FindShortestRouteBetween("Zürich", "Le Havre", TransportMode.Rail);
Assert.IsNull(route);
try
{
route = links.FindShortestRouteBetween("doesNotExist", "either", TransportMode.Rail);
Assert.Fail("Should throw a KeyNotFoundException");
}
catch (KeyNotFoundException)
{
}
}
public void TestTask2EventWithNoObserver()
{
var cities = new Cities();
cities.ReadCities(CitiesTestFile);
var links = new Links(cities);
// should run without exception
links.FindShortestRouteBetween("Bern", "Zürich", TransportMode.Rail);
}
public void TestRequestWatcher()
{
var reqWatch = new RouteRequestWatcher();
var cities = new Cities();
cities.ReadCities(CitiesTestFile);
var links = new Links(cities);
// capture console output in memory stream to verify correct console output
MemoryStream ms = new MemoryStream();
using (StreamWriter sw = new StreamWriter(ms))
{
TextWriter tmp = Console.Out;
Console.SetOut(sw);
/* classOfEvent.Eventname += subcriberobj.Eventhandler (resonds to the event) */
links.RouteRequested += reqWatch.LogRouteRequests;
// FIRES EVENT 'RouteRequested'
links.FindShortestRouteBetween("Bern", "Zürich", TransportMode.Rail);
links.FindShortestRouteBetween("Bern", "Zürich", TransportMode.Rail);
links.FindShortestRouteBetween("Basel", "Bern", TransportMode.Rail);
// make sure content is written to output
sw.Flush();
Assert.AreEqual(reqWatch.GetCityRequests(cities["Zürich"]), 2);
Assert.AreEqual(reqWatch.GetCityRequests(cities["Bern"]), 1);
Assert.AreEqual(reqWatch.GetCityRequests(cities["Basel"]), 0);
Assert.AreEqual(reqWatch.GetCityRequests(cities["Lausanne"]), 0);
// now check
VerifyConsoleOut(ms);
} // IMPORTANT: close stream after test, so that memorystream is kept open for the test
}
public void TestFindLinksToCitiesEnRouteDoesNotCreateNewLinks()
{
// find the same route twice
var route1 = links.FindShortestRouteBetween("Zürich", "Basel", TransportMode.Rail);
var route2 = links.FindShortestRouteBetween("Zürich", "Basel", TransportMode.Rail);
// same link amount has to be returned
Assert.AreEqual(route1.Count, route2.Count);
// same links have to be returned, its not allowed to create own links while converting
for (var i = 0; i < route1.Count; i++)
{
Assert.IsTrue(ReferenceEquals(route1[i], route2[i]), "Same link object-instances have to in same order in route1 and route2");
}
}
public void TestGetBiggestCityOnDay()
{
// make some request
links4.RouteRequested += LogRouteRequests;
testDate = new DateTime(2019, 1, 31);
links4.FindShortestRouteBetween("Bern", "Zürich", TransportMode.Rail);
links4.FindShortestRouteBetween("Bern", "Zürich", TransportMode.Rail);
links4.FindShortestRouteBetween("Basel", "Bern", TransportMode.Rail);
Assert.AreEqual(2, GetThreeBiggestCityOnDay(testDate).Count());
Assert.AreEqual("Zürich", (GetThreeBiggestCityOnDay(testDate).First().Name));
testDate = new DateTime(2019, 4, 28);
links4.FindShortestRouteBetween("Bern", "Lyon", TransportMode.Rail);
links4.FindShortestRouteBetween("Bern", "Zürich", TransportMode.Rail);
links4.FindShortestRouteBetween("Basel", "Bern", TransportMode.Rail);
links4.FindShortestRouteBetween("Bern", "Milano", TransportMode.Rail);
var result = GetThreeBiggestCityOnDay(testDate).ToList();
Assert.AreEqual(3, result.Count());
Assert.AreEqual("Milano", (result[0].Name));
Assert.AreEqual("Lyon", (result[1].Name));
Assert.AreEqual("Zürich", (result[2].Name));
testDate = new DateTime(2015, 1, 31);
Assert.AreEqual(0, GetThreeBiggestCityOnDay(testDate).Count());
}
