public void PositionAfterRead()
{
var memoryStream1 = new MemoryStream(new byte[10]);
var fileSystem = new FakeFileSystem(memoryStream1, null, null);
var partitioningStream = new PartitioningFileStream(fileSystem, "FileName", "ext", 6, FileAccess.Write);
var buffer = new byte[9];
partitioningStream.Read(buffer, 0, 9);
Assert.AreEqual(9, partitioningStream.Position);
}
public void ReadAcrossTwoFiles()
{
var memoryStream1 = new MemoryStream(Encoding.ASCII.GetBytes("12345"));
var memoryStream2 = new MemoryStream(Encoding.ASCII.GetBytes("67890"));
var fileSystem = new FakeFileSystem(memoryStream1, memoryStream2, null);
var partitioningStream = new PartitioningFileStream(fileSystem, "FileName", "ext", 5, FileAccess.Read);
var buffer = new byte[10];
var read = partitioningStream.Read(buffer, 0, 10);
Assert.AreEqual(10, read);
Assert.AreEqual("1234567890", Encoding.ASCII.GetString(buffer));
}
public void Read()
{
const string helloWorld = "Hello, World!";
var memoryStream = new MemoryStream(Encoding.ASCII.GetBytes(helloWorld));
var fileSystem = new FakeFileSystem(memoryStream, null, null);
var partitioningStream = new PartitioningFileStream(fileSystem, "FileName", "ext", 100, FileAccess.Read);
var buffer = new byte[helloWorld.Length];
var read = partitioningStream.Read(buffer, 0, helloWorld.Length);
Assert.AreEqual(helloWorld.Length, read);
Assert.AreEqual(helloWorld, Encoding.ASCII.GetString(buffer));
}
public void PositionAfterReadThenWriteIntoSecondFile()
{
var memoryStream1 = new MemoryStream(new byte[20]);
var memoryStream2 = new MemoryStream(new byte[20]);
var fileSystem = new FakeFileSystem(memoryStream1, memoryStream2, null);
var partitioningStream = new PartitioningFileStream(fileSystem, "FileName", "ext", 20, FileAccess.Write);
var buffer = new byte[40];
partitioningStream.Read(buffer, 0, 20);
partitioningStream.Write(buffer, 0, 10);
Assert.AreEqual(30, partitioningStream.Position);
}
public void ReadSingleFile()
{
const string helloWorld = "Hello, World!!";
var memoryStream = new MemoryStream(Encoding.ASCII.GetBytes(helloWorld));
var fileSystem = new FakeFileSystem(memoryStream, null, null);
var partitioningStream = new PartitioningFileStream(fileSystem, "FileName", "ext", 100, FileAccess.Read);
var buffer = new byte[helloWorld.Length];
for (int i = 0; i < helloWorld.Length; i += 2)
{
partitioningStream.Read(buffer, i, 2);
}
Assert.AreEqual(helloWorld, Encoding.ASCII.GetString(buffer));
}
