public void GetHashCode_TwoIdenticalObjects_BothUninitialized_HashCodesAreEqual()
{
// Arrange
var package1 = new RESTServiceConfiguration();
var package2 = new RESTServiceConfiguration();
// Act
int hashCodeObject1 = package1.GetHashCode();
int hashCodeObject2 = package2.GetHashCode();
// Assert
Assert.AreEqual(hashCodeObject1, hashCodeObject2);
}
public void GetHashCode_TwoIdenticalObjects_BothInitialized_HashCodesAreEqual()
{
// Arrange
var object1 = new RESTServiceConfiguration { Hostaddress = "127.0.0.1", Hostname = "localhost", ResourcePath = "some/path" };
var object2 = new RESTServiceConfiguration { Hostaddress = "127.0.0.1", Hostname = "localhost", ResourcePath = "some/path" };
// Act
int hashCodeObject1 = object1.GetHashCode();
int hashCodeObject2 = object2.GetHashCode();
// Assert
Assert.AreEqual(hashCodeObject1, hashCodeObject2);
}
public void GetHashCode_SameHashCodeIsReturnedEveryTimeTheMethodIsCalled_AsLongAsTheObjectDoesNotChange()
{
// Arrange
var hostaddress = "127.0.0.1";
var hostname = "localhost";
var resourcePath = "some/path";
var object1 = new RESTServiceConfiguration { Hostaddress = hostaddress, Hostname = hostname, ResourcePath = resourcePath };
int expectedHashcode = object1.GetHashCode();
for (var i = 0; i < 100; i++)
{
// Act
object1.Hostaddress = hostaddress;
object1.Hostname = hostname;
object1.ResourcePath = resourcePath;
int generatedHashCode = object1.GetHashCode();
// Assert
Assert.AreEqual(expectedHashcode, generatedHashCode);
}
}
public void GetHashCode_TwoDistinctObjects_HashCodesAreDifferent()
{
// Arrange
var object1 = new RESTServiceConfiguration { Hostaddress = "127.0.0.1", Hostname = "localhost", ResourcePath = "some/path" };
var object2 = new RESTServiceConfiguration { Hostaddress = "127.0.0.1", Hostname = "localhost", ResourcePath = "another/path" };
// Act
int hashCodeObject1 = object1.GetHashCode();
int hashCodeObject2 = object2.GetHashCode();
// Assert
Assert.AreNotEqual(hashCodeObject1, hashCodeObject2);
}
public void GetHashCode_ForAllUniqueObject_AUniqueHashCodeIsReturned()
{
var hashCodes = new Dictionary<int, RESTServiceConfiguration>();
for (var i = 0; i < 10000; i++)
{
// Act
var object1 = new RESTServiceConfiguration { Hostaddress = "127.0.0.1", Hostname = Guid.NewGuid().ToString(), ResourcePath = "api/" + Guid.NewGuid().ToString() };
int generatedHashCode = object1.GetHashCode();
// Assert
Assert.IsFalse(hashCodes.ContainsKey(generatedHashCode));
hashCodes.Add(generatedHashCode, object1);
}
}