public virtual void TestPositiveNewHarFsOnTheSameUnderlyingFs()
{
// Init 2nd har file system on the same underlying FS, so the
// metadata gets reused:
HarFileSystem hfs = new HarFileSystem(localFileSystem);
URI uri = new URI("har://" + harPath.ToString());
hfs.Initialize(uri, new Configuration());
// the metadata should be reused from cache:
Assert.True(hfs.GetMetadata() == harFileSystem.GetMetadata());
}
public virtual void TestNegativeInitWithAnUnsupportedVersion()
{
// NB: should wait at least 1 second to ensure the timestamp of the master
// index will change upon the writing, because Linux seems to update the
// file modification
// time with 1 second accuracy:
Thread.Sleep(1000);
// write an unsupported version:
WriteVersionToMasterIndexImpl(7777, new Path(harPath, "_masterindex"));
// init the Har:
HarFileSystem hfs = new HarFileSystem(localFileSystem);
// the metadata should *not* be reused from cache:
NUnit.Framework.Assert.IsFalse(hfs.GetMetadata() == harFileSystem.GetMetadata());
URI uri = new URI("har://" + harPath.ToString());
try
{
hfs.Initialize(uri, new Configuration());
NUnit.Framework.Assert.Fail("IOException expected.");
}
catch (IOException)
{
}
}
public virtual void TestPositiveLruMetadataCacheFs()
{
// Init 2nd har file system on the same underlying FS, so the
// metadata gets reused:
HarFileSystem hfs = new HarFileSystem(localFileSystem);
URI uri = new URI("har://" + harPath.ToString());
hfs.Initialize(uri, new Configuration());
// the metadata should be reused from cache:
Assert.True(hfs.GetMetadata() == harFileSystem.GetMetadata());
// Create more hars, until the cache is full + 1; the last creation should evict the first entry from the cache
for (int i = 0; i <= hfs.MetadataCacheEntriesDefault; i++)
{
Path p = new Path(rootPath, "path1/path2/my" + i + ".har");
CreateHarFileSystem(conf, p);
}
// The first entry should not be in the cache anymore:
hfs = new HarFileSystem(localFileSystem);
uri = new URI("har://" + harPath.ToString());
hfs.Initialize(uri, new Configuration());
Assert.True(hfs.GetMetadata() != harFileSystem.GetMetadata());
}