public void TestNullAliasesAndContentType()
{
_database.GridFS.Files.RemoveAll();
_database.GridFS.Chunks.RemoveAll();
var text = "Hello World";
var bytes = Encoding.UTF8.GetBytes(text);
var stream = new MemoryStream(bytes);
var fileInfo = _database.GridFS.Upload(stream, null); // test no filename!
Assert.IsNull(fileInfo.Aliases);
Assert.IsNull(fileInfo.ContentType);
Assert.IsNull(fileInfo.Metadata);
Assert.IsNull(fileInfo.Name);
var query = Query.EQ("_id", fileInfo.Id);
var files = _database.GridFS.Files.FindOne(query);
Assert.IsFalse(files.Contains("aliases"));
Assert.IsFalse(files.Contains("contentType"));
Assert.IsFalse(files.Contains("filename"));
Assert.IsFalse(files.Contains("metadata"));
// simulate null values as stored by other drivers
var update = Update
.Set("aliases", BsonNull.Value)
.Set("contentType", BsonNull.Value)
.Set("filename", BsonNull.Value)
.Set("metadata", BsonNull.Value);
_database.GridFS.Files.Update(query, update);
var fileInfo2 = _database.GridFS.FindOne(query);
Assert.IsNull(fileInfo2.Aliases);
Assert.IsNull(fileInfo2.ContentType);
Assert.IsNull(fileInfo2.Metadata);
Assert.IsNull(fileInfo2.Name);
// test that non-null values still work
var aliases = new[] { "a", "b", "c" };
var contentType = "text/plain";
var metadata = new BsonDocument { { "x", 1 }, { "y", 2 } };
var name = "HelloWorld.txt";
_database.GridFS.SetAliases(fileInfo, aliases);
_database.GridFS.SetContentType(fileInfo, contentType);
_database.GridFS.SetMetadata(fileInfo, metadata);
fileInfo.MoveTo(name);
var fileInfo3 = _database.GridFS.FindOne(query);
Assert.IsTrue(aliases.SequenceEqual(fileInfo3.Aliases));
Assert.AreEqual(contentType, fileInfo3.ContentType);
Assert.AreEqual(metadata, fileInfo3.Metadata);
Assert.AreEqual(name, fileInfo3.Name);
}
