private IPingStats GetUpdatedStats(IPingResponse pingResponse)
{
PingStats stats;
IPAddress targetIpAddress = pingResponse.TargetIpAddress;
bool isSuccess = _pingResponseUtil.IsSuccess(pingResponse.Status);
if (_stats.TryGetValue(targetIpAddress, out PingStats found))
{
stats = found;
}
else
{
DateTime?lastSuccess = isSuccess ? DateTime.Now : (DateTime?)null;
DateTime?lastFailure = !isSuccess ? DateTime.Now : (DateTime?)null;
stats = new PingStats(lastSuccess, lastFailure);
_stats.Add(targetIpAddress, stats);
}
_pingStatsUtil.AddStatus(stats.StatusHistory, isSuccess);
double v = isSuccess ? 1.0 : 0.0;
stats.Average25 = ((stats.Average25 * stats.Average25Count) + v) / (stats.Average25Count + 1);
if (stats.Average25Count < 25)
{
stats.Average25Count++;
}
return(stats);
}
public void AverageLatency_PingCountIsThree()
{
//Assign
PingStats stats = new PingStats();
PingResult result1 = new PingResult()
{
AddressOrIp = "www.google.com",
Latency = 0,
Status = PingResult.StatusMessage.SUCCESS,
};
PingResult result2 = new PingResult()
{
AddressOrIp = "www.google.com",
Latency = 50,
Status = PingResult.StatusMessage.SUCCESS,
};
PingResult result3 = new PingResult()
{
AddressOrIp = "www.google.com",
Latency = 100,
Status = PingResult.StatusMessage.SUCCESS,
};
double expectedResult = 50;
double actualResult;
//act
stats.Add(result1);
stats.Add(result2);
stats.Add(result3);
actualResult = stats.AverageLatency;
//assert
Assert.AreEqual(expectedResult, actualResult);
}
public void Add_ResultStatusFailureAndSuccess()
{
//Assign
PingStats stats = new PingStats();
PingResult result = new PingResult()
{
AddressOrIp = "www.google.com",
Latency = 1,
Status = PingResult.StatusMessage.FAILURE,
};
PingResult result2 = new PingResult()
{
AddressOrIp = "www.google.com",
Latency = 5,
Status = PingResult.StatusMessage.SUCCESS,
};
bool expectedResult = true;
bool actualResult;
//act
stats.Add(result);
stats.Add(result2);
actualResult = (stats.MaxLatency == 5 && stats.PacketsLost == 1 && stats.PacketsSent == 2 && stats.AverageLatency == 5);
//assert
Assert.AreEqual(expectedResult, actualResult);
}
public void AverageLatency_PingCountIsZero()
{
//Assign
PingStats stats = new PingStats();
double expectedResult = 0;
double actualResult;
//act
actualResult = stats.AverageLatency;
//assert
Assert.AreEqual(expectedResult, actualResult);
}
public void Add_AddressResultIsNull()
{
//Assign
PingStats stats = new PingStats();
PingResult result = new PingResult()
{
AddressOrIp = null,
};
bool expectedResult = true;
bool actualResult;
//act
stats.Add(result);
actualResult = (stats.MaxLatency == 0 && stats.PacketsLost == 0 && stats.PacketsSent == 0 && stats.AverageLatency == 0);
//assert
Assert.AreEqual(expectedResult, actualResult);
}
public void GetVector_100PercentSuccess_WillMatchBoring()
{
// Arrange
PingVectorFactory unitUnderTest = CreateFactory();
IPingResponse pingResponse = new PingResponse(IPAddress.Loopback, TimeSpan.Zero, IPStatus.Success, IPAddress.Loopback);
IPingStats stats = new PingStats(DateTime.Now, null)
{
Average25 = 0, Average25Count = 0, StatusHistory = Enumerable.Range(1, PingStatsUtil.MaxHistoryCount).Select(i => true).ToList()
};
// Act
IVector actual = unitUnderTest.GetVector(
pingResponse,
stats);
// Assert
IVector expected = Boring;
VectorComparer.AssertAreEqual(expected, actual, HundredthPi);
}
public void GetVector_1Failure_CloseToInteresting()
{
// Arrange
PingVectorFactory unitUnderTest = CreateFactory();
IPingResponse pingResponse = new PingResponse(IPAddress.Loopback, TimeSpan.Zero, IPStatus.Success, IPAddress.Loopback);
IPingStats stats = new PingStats(null, DateTime.Now)
{
Average25 = 0, Average25Count = 0, StatusHistory = Enumerable.Range(1, PingStatsUtil.MaxHistoryCount).Select(i => true).Append(false).ToList()
};
// Act
IVector actual = unitUnderTest.GetVector(
pingResponse,
stats);
// Assert
IVector expected = Interesting;
VectorComparer.AssertAreEqual(expected, actual, EighthPi);
}
public void Add_LatencyResultIsNegative()
{
//Assign
PingStats stats = new PingStats();
PingResult result = new PingResult()
{
AddressOrIp = "www.google.com",
Status = PingResult.StatusMessage.SUCCESS,
Latency = -1,
};
bool expectedResult = true;
bool actualResult;
//act
stats.Add(result);
actualResult = (stats.MaxLatency == 0 && stats.PacketsLost == 0 && stats.PacketsSent == 1 && stats.AverageLatency == 1);
//assert
Assert.AreEqual(expectedResult, actualResult);
}
