public void HasChanged_ReturnsTrueIfFilesWereRemoved()
{
// Arrange
var filePath1 = "1.txt";
var filePath2 = "2.txt";
var directoryInfo = new Mock <DirectoryInfoBase>();
directoryInfo.Setup(d => d.EnumerateFileSystemInfos())
.Returns(new[] { CreateFile(filePath1), CreateFile(filePath2) });
var clock = new TestClock();
var token = new TestablePollingWildCardChangeToken(directoryInfo.Object, "**/*.txt", clock);
// Act - 1
clock.Increment();
var result1 = token.HasChanged;
// Assert - 1
Assert.False(result1);
// Act - 2
directoryInfo.Setup(d => d.EnumerateFileSystemInfos())
.Returns(new[] { CreateFile(filePath1), });
clock.Increment();
var result2 = token.HasChanged;
// Assert - 2
Assert.True(result2);
}
public void HasChanged_ReturnsTrueIfFileWasModifiedButRetainedAnOlderTimestamp()
{
// Arrange
var filePath1 = "1.txt";
var filePath2 = "2.txt";
var directoryInfo = new Mock <DirectoryInfoBase>();
directoryInfo.Setup(d => d.EnumerateFileSystemInfos())
.Returns(new[] { CreateFile(filePath1), CreateFile(filePath2) });
var clock = new TestClock();
var token = new TestablePollingWildCardChangeToken(directoryInfo.Object, "**/*.txt", clock);
// Act - 1
clock.Increment();
var result1 = token.HasChanged;
// Assert - 1
Assert.False(result1);
// Act - 2
token.FileTimestampLookup[filePath2] = clock.UtcNow.AddMilliseconds(-100);
clock.Increment();
var result2 = token.HasChanged;
// Assert - 2
Assert.True(result2);
}
public void HasChanged_ReturnsFalseIfFilesDoNotChange()
{
// Arrange
var filePath = "1.txt";
var fileInfo = CreateFile(filePath);
var directoryInfo = new Mock <DirectoryInfoBase>();
directoryInfo.Setup(d => d.EnumerateFileSystemInfos())
.Returns(new[] { fileInfo });
var clock = new TestClock();
var token = new TestablePollingWildCardChangeToken(directoryInfo.Object, "**/*.txt", clock);
// Act
clock.Increment();
var result = token.HasChanged;
// Assert
Assert.False(result);
}
