public void GetMetadata_ReplacesCache_IfFileTimestampChanged()
{
using (var directory = TempDirectory.Create())
{
// Arrange
var metadataCache = new MetadataCache();
var assemblyFilePath = LoaderTestResources.Delta.WriteToFile(directory.DirectoryPath, "Delta.dll");
// Act 1
var result = metadataCache.GetMetadata(assemblyFilePath);
// Assert 1
Assert.NotNull(result);
var entry = Assert.Single(metadataCache.Cache.TestingEnumerable);
Assert.Same(result, entry.Value.Metadata);
// Act 2
// Update the timestamp of the file
File.SetLastWriteTimeUtc(assemblyFilePath, File.GetLastWriteTimeUtc(assemblyFilePath).AddSeconds(1));
var cacheResult = metadataCache.GetMetadata(assemblyFilePath);
// Assert 2
Assert.NotSame(result, cacheResult);
entry = Assert.Single(metadataCache.Cache.TestingEnumerable);
Assert.Same(cacheResult, entry.Value.Metadata);
}
}
public void GetMetadata_AddsToCache()
{
using (var directory = TempDirectory.Create())
{
// Arrange
var metadataCache = new MetadataCache();
var assemblyFilePath = LoaderTestResources.Delta.WriteToFile(directory.DirectoryPath, "Delta.dll");
// Act
var result = metadataCache.GetMetadata(assemblyFilePath);
// Assert
Assert.NotNull(result);
Assert.Equal(1, metadataCache.Cache.Count);
}
}
public void GetMetadata_MultipleFiles_ReturnsDifferentResultsAndAddsToCache()
{
using (var directory = TempDirectory.Create())
{
// Arrange
var metadataCache = new MetadataCache();
var assemblyFilePath1 = LoaderTestResources.Delta.WriteToFile(directory.DirectoryPath, "Delta.dll");
var assemblyFilePath2 = LoaderTestResources.Gamma.WriteToFile(directory.DirectoryPath, "Gamma.dll");
// Act
var result1 = metadataCache.GetMetadata(assemblyFilePath1);
var result2 = metadataCache.GetMetadata(assemblyFilePath2);
// Assert
Assert.NotSame(result1, result2);
Assert.Equal(2, metadataCache.Cache.Count);
}
}