public void TestDatabaseBackedMemoryStream()
{
var prepared = TestHelper.PrepareDatabaseAndBlob(this.testFile.FullName, this.random);
using (var connection = new SqliteConnection(prepared.ConnectionString))
{
connection.Open();
TestHelper.AssertBlobMetadata(connection, 1024, 0, 0, 0);
var now = Date.Now;
using (var stream = new DatabaseBackedMemoryStream(connection, UPath.Root / "test.blob", true, true))
{
TestHelper.AssertBlobMetadata(connection, 1024, now, 0, 0);
Assert.IsTrue(stream.CanRead);
Assert.IsTrue(stream.CanSeek);
Assert.IsTrue(stream.CanWrite);
Assert.AreEqual(0, stream.Position);
Assert.AreEqual(1024, stream.Length);
var actualBlob = new byte[stream.Length];
var read = stream.Read(actualBlob, 0, 1024);
Assert.AreEqual(1024, read);
CollectionAssert.AreEqual(prepared.blobData, actualBlob);
}
// the meta data should not have been updated because no changes were made
TestHelper.AssertBlobMetadata(connection, 1024, now, 0, 0);
}
}
