public void HashCollisionsAreWithinLimitsGuidKey_ReturnsTrue_NoException()
{
Dictionary <TestDomain.Entities.GuidKeyEntity, string> entityDict = new Dictionary <TestDomain.Entities.GuidKeyEntity, string>();
object syncObject = new object();
int errors = 0;
int maxIterations = 1000000;
Parallel.For(fromInclusive: 0, toExclusive: maxIterations, body: (iteration) =>
{
try
{
TestDomain.Entities.GuidKeyEntity entity = new TestDomain.Entities.GuidKeyEntity();
entity.Id = Guid.NewGuid();
entity.Name = "Entity " + iteration;
lock (syncObject)
{
entityDict.Add(entity, iteration.ToString());
}
}
catch
{
Interlocked.Increment(ref errors);
}
});
var limit = 1;
var expected = true;
var actual = (errors < limit);
Assert.IsTrue(actual == expected, message: "The hashing algoritm generates more than " + limit + " collision per " + maxIterations + " entities");
Assert.IsTrue(entityDict.Count == maxIterations - errors, message: "Something wrong happened running the test, the right number of elements where not introduced in the dictionary");
}
public void ComparingEntitiesWithDifferentGuidKey_IsNotEqual_NoException()
{
TestDomain.Entities.GuidKeyEntity firstGuidEntity = new TestDomain.Entities.GuidKeyEntity();
TestDomain.Entities.GuidKeyEntity secondGuidEntity = new TestDomain.Entities.GuidKeyEntity();
firstGuidEntity.Id = Guid.NewGuid();
secondGuidEntity.Id = Guid.NewGuid();
firstGuidEntity.Name = "SameProp";
secondGuidEntity.Name = "SameProp";
var expected = false;
var actual = firstGuidEntity == secondGuidEntity;
Assert.IsTrue(actual == expected, message: "Both entities should not be equal due to having different Guids key");
}
public void ComparingEntitiesWithSameGuidKey_IsEqual_NoException()
{
TestDomain.Entities.GuidKeyEntity firstGuidEntity = new TestDomain.Entities.GuidKeyEntity();
TestDomain.Entities.GuidKeyEntity secondGuidEntity = new TestDomain.Entities.GuidKeyEntity();
Guid guidToShare = Guid.NewGuid();
firstGuidEntity.Id = guidToShare;
secondGuidEntity.Id = guidToShare;
firstGuidEntity.Name = "FirstProp";
secondGuidEntity.Name = "SecondProp";
var expected = true;
var actual = firstGuidEntity == secondGuidEntity;
Assert.IsTrue(actual == expected, message: "Both entities should be equal due to having same Guid key");
}
public void HashCollisionsAreWithinLimitsGuidKey_ReturnsTrue_NoException()
{
Dictionary<TestDomain.Entities.GuidKeyEntity, string> entityDict = new Dictionary<TestDomain.Entities.GuidKeyEntity, string>();
object syncObject = new object();
int errors = 0;
int maxIterations = 1000000;
Parallel.For(fromInclusive: 0, toExclusive: maxIterations, body: (iteration) =>
{
try
{
TestDomain.Entities.GuidKeyEntity entity = new TestDomain.Entities.GuidKeyEntity();
entity.Id = Guid.NewGuid();
entity.Name = "Entity " + iteration;
lock (syncObject)
{
entityDict.Add(entity, iteration.ToString());
}
}
catch
{
Interlocked.Increment(ref errors);
}
});
var limit = 1;
var expected = true;
var actual = (errors < limit);
Assert.IsTrue(actual == expected, message: "The hashing algoritm generates more than " + limit + " collision per " + maxIterations + " entities");
Assert.IsTrue(entityDict.Count == maxIterations - errors, message: "Something wrong happened running the test, the right number of elements where not introduced in the dictionary");
}
public void ComparingEntitiesWithSameGuidKey_IsEqual_NoException()
{
TestDomain.Entities.GuidKeyEntity firstGuidEntity = new TestDomain.Entities.GuidKeyEntity();
TestDomain.Entities.GuidKeyEntity secondGuidEntity = new TestDomain.Entities.GuidKeyEntity();
Guid guidToShare = Guid.NewGuid();
firstGuidEntity.Id = guidToShare;
secondGuidEntity.Id = guidToShare;
firstGuidEntity.Name = "FirstProp";
secondGuidEntity.Name = "SecondProp";
var expected = true;
var actual = firstGuidEntity == secondGuidEntity;
Assert.IsTrue(actual == expected, message: "Both entities should be equal due to having same Guid key");
}
public void ComparingEntitiesWithDifferentGuidKey_IsNotEqual_NoException()
{
TestDomain.Entities.GuidKeyEntity firstGuidEntity = new TestDomain.Entities.GuidKeyEntity();
TestDomain.Entities.GuidKeyEntity secondGuidEntity = new TestDomain.Entities.GuidKeyEntity();
firstGuidEntity.Id = Guid.NewGuid();
secondGuidEntity.Id = Guid.NewGuid();
firstGuidEntity.Name = "SameProp";
secondGuidEntity.Name = "SameProp";
var expected = false;
var actual = firstGuidEntity == secondGuidEntity;
Assert.IsTrue(actual == expected, message: "Both entities should not be equal due to having different Guids key");
}
