public void AggregatesAllLogsForTheLastThreedays()
{
using (ShimsContext.Create())
{
// Arrange
var sut = new LogAggregator();
ShimDirectory.GetFilesStringString = (path, seachPattern) =>
new[]
{
@"C:\someLogDir\Log_20180801.log",
@"C:\someLogDir\Log_20180827.log",
@"C:\someLogDir\Log_20180829.log"
};
ShimFile.ReadAllLinesString = path =>
{
switch (path)
{
case @"C:\someLogDir\Log_20180801.log":
return(new[] { "OctFirstLine1", "OctFirstLine2" });
case @"C:\someLogDir\Log_20180827.log":
return(new[] { "2DaysAgoPickedUpLine", "SOmethingElse" });
case @"C:\someLogDir\Log_20180829.log":
return(new[] { "OctFifthLine1", "TodayLastLine" });
default:
return(new string[] { });
}
};
ShimDateTime.TodayGet = () => new DateTime(2018, 08, 29);
// Act
var logResults = sut.AggregateLogs(@"C:\SomeDir", 3);
// Assert
Assert.AreEqual(4, logResults.Length);
Assert.Contains("2DaysAgoPickedUpLine", logResults);
Assert.Contains("TodayLastLine", logResults);
}
}
public void AggregateLogs_PastThreeDays_ReturnsAllLinesFromPastThreeDays()
{
using (ShimsContext.Create())
{
// Arrange
var sut = new LogAggregator();
ShimDirectory.GetFilesStringString = (dir, pattern) => new[]
{
@"C:\someLogDir\Log_20121001.log",
@"C:\someLogDir\Log_20121002.log",
@"C:\someLogDir\Log_20121005.log"
};
ShimFile.ReadAllLinesString = path =>
{
switch (path)
{
case @"C:\someLogDir\Log_20121001.log":
return(new[] { "OctFirstLine1", "OctFirstLine2" });
case @"C:\someLogDir\Log_20121002.log":
return(new[] { "ThreeDaysAgoFirstLine", "OctSecondLine2" });
case @"C:\someLogDir\Log_20121005.log":
return(new[] { "OctFifthLine1", "TodayLastLine" });
}
return(new string[] { });
};
ShimDateTime.TodayGet = () => new DateTime(2012, 10, 05);
// Act
var result = sut.AggregateLogs(@"C:\SomeLogDir", daysInPast: 3);
// Assert
Assert.AreEqual(4, result.Length, "Number of aggregated lines incorrect.");
CollectionAssert.Contains(result, "ThreeDaysAgoFirstLine", "Expected line missing from aggregated log.");
CollectionAssert.Contains(result, "TodayLastLine", "Expected line missing from aggregated log.");
}
}