public void GetParentLocations()
{
MemoryStream baseStream = new MemoryStream();
MemoryStream diffStream = new MemoryStream();
using (DiskImageFile baseFile = DiskImageFile.InitializeDynamic(baseStream, Ownership.Dispose, 16 * 1024L * 1024 * 1024))
{
// Write some data - exposes bug if mis-calculating where to write data
using (DiskImageFile diffFile = DiskImageFile.InitializeDifferencing(diffStream, Ownership.None, baseFile, @"C:\TEMP\Base.vhd", @".\Base.vhd", new DateTime(2007, 12, 31)))
{
Disk disk = new Disk(new DiskImageFile[] { diffFile, baseFile }, Ownership.None);
disk.Content.Write(new byte[512], 0, 512);
}
}
using (DiskImageFile diffFile = new DiskImageFile(diffStream))
{
// Testing the obsolete method - disable warning
#pragma warning disable 618
string[] locations = diffFile.GetParentLocations(@"E:\FOO\");
#pragma warning restore 618
Assert.AreEqual(2, locations.Length);
Assert.AreEqual(@"C:\TEMP\Base.vhd", locations[0]);
Assert.AreEqual(@"E:\FOO\Base.vhd", locations[1]);
}
using (DiskImageFile diffFile = new DiskImageFile(diffStream))
{
// Testing the new method - note relative path because diff file initialized without a path
string[] locations = diffFile.GetParentLocations();
Assert.AreEqual(2, locations.Length);
Assert.AreEqual(@"C:\TEMP\Base.vhd", locations[0]);
Assert.AreEqual(@".\Base.vhd", locations[1]);
}
}
public void ConstructorFromFiles()
{
MemoryStream baseStream = new MemoryStream();
DiskImageFile baseFile = DiskImageFile.InitializeDynamic(baseStream, Ownership.Dispose, 16 * 1024L * 1024 * 1024);
MemoryStream childStream = new MemoryStream();
DiskImageFile childFile = DiskImageFile.InitializeDifferencing(childStream, Ownership.Dispose, baseFile, @"C:\temp\foo.vhd", @".\foo.vhd", DateTime.Now);
MemoryStream grandChildStream = new MemoryStream();
DiskImageFile grandChildFile = DiskImageFile.InitializeDifferencing(grandChildStream, Ownership.Dispose, childFile, @"C:\temp\child1.vhd", @".\child1.vhd", DateTime.Now);
using (Disk disk = new Disk(new DiskImageFile[]{grandChildFile, childFile, baseFile}, Ownership.Dispose))
{
Assert.IsNotNull(disk.Content);
}
}
public void ConstructorDynamic()
{
Geometry geometry;
MemoryStream ms = new MemoryStream();
using (Disk disk = Disk.InitializeDynamic(ms, Ownership.None, 16 * 1024L * 1024 * 1024))
{
geometry = disk.Geometry;
}
using (Disk disk = new Disk(ms, Ownership.None))
{
Assert.AreEqual(geometry, disk.Geometry);
Assert.IsNotNull(disk.Content);
}
using (Disk disk = new Disk(ms, Ownership.Dispose))
{
Assert.AreEqual(geometry, disk.Geometry);
Assert.IsNotNull(disk.Content);
}
}
public void BuildFixed()
{
DiskBuilder builder = new DiskBuilder();
builder.DiskType = FileType.Fixed;
builder.Content = diskContent;
DiskImageFileSpecification[] fileSpecs = builder.Build("foo");
Assert.AreEqual(1, fileSpecs.Length);
Assert.AreEqual("foo.vhd", fileSpecs[0].Name);
using (Disk disk = new Disk(fileSpecs[0].OpenStream(), Ownership.Dispose))
{
for (int i = 0; i < 8; i += 1024 * 1024)
{
disk.Content.Position = i;
Assert.AreEqual(i, disk.Content.ReadByte());
}
disk.Content.Position = 15 * 1024 * 1024;
Assert.AreEqual(0xFF, disk.Content.ReadByte());
}
}
public void ReadWriteSmall()
{
MemoryStream stream = new MemoryStream();
using (Disk disk = Disk.InitializeDynamic(stream, Ownership.None, 16 * 1024L * 1024 * 1024))
{
byte[] content = new byte[100];
for(int i = 0; i < content.Length; ++i)
{
content[i] = (byte)i;
}
Stream s = disk.Content;
s.Write(content, 10, 40);
Assert.AreEqual(40, s.Position);
s.Write(content, 50, 50);
Assert.AreEqual(90, s.Position);
s.Position = 0;
byte[] buffer = new byte[100];
s.Read(buffer, 10, 60);
Assert.AreEqual(60, s.Position);
for (int i = 0; i < 10; ++i)
{
Assert.AreEqual(0, buffer[i]);
}
for (int i = 10; i < 60; ++i)
{
Assert.AreEqual(i, buffer[i]);
}
}
// Check the data persisted
using (Disk disk = new Disk(stream, Ownership.Dispose))
{
Stream s = disk.Content;
byte[] buffer = new byte[100];
s.Read(buffer, 10, 20);
Assert.AreEqual(20, s.Position);
for (int i = 0; i < 10; ++i)
{
Assert.AreEqual(0, buffer[i]);
}
for (int i = 10; i < 20; ++i)
{
Assert.AreEqual(i, buffer[i]);
}
}
}
public void InitializeDynamic()
{
MemoryStream ms = new MemoryStream();
using (Disk disk = Disk.InitializeDynamic(ms, Ownership.None, 16 * 1024L * 1024 * 1024))
{
Assert.IsNotNull(disk);
Assert.That(disk.Geometry.Capacity > 15.8 * 1024L * 1024 * 1024 && disk.Geometry.Capacity <= 16 * 1024L * 1024 * 1024);
}
Assert.Greater(1 * 1024 * 1024, ms.Length);
using (Disk disk = new Disk(ms, Ownership.Dispose))
{
Assert.That(disk.Geometry.Capacity > 15.8 * 1024L * 1024 * 1024 && disk.Geometry.Capacity <= 16 * 1024L * 1024 * 1024);
}
}
public void UndisposedChangedDynamic()
{
byte[] firstSector = new byte[512];
byte[] lastSector = new byte[512];
MemoryStream ms = new MemoryStream();
using (Disk newDisk = Disk.InitializeDynamic(ms, Ownership.None, 16 * 1024L * 1024 * 1024))
{
}
using (Disk disk = new Disk(ms, Ownership.None))
{
disk.Content.Write(new byte[1024], 0, 1024);
ms.Position = 0;
ms.Read(firstSector, 0, 512);
ms.Seek(-512, SeekOrigin.End);
ms.Read(lastSector, 0, 512);
Assert.AreEqual(firstSector, lastSector);
}
// Check disabling AutoCommit really doesn't do the commit
using (Disk disk = new Disk(ms, Ownership.None))
{
disk.AutoCommitFooter = false;
disk.Content.Position = 10 * 1024 * 1024;
disk.Content.Write(new byte[1024], 0, 1024);
ms.Position = 0;
ms.Read(firstSector, 0, 512);
ms.Seek(-512, SeekOrigin.End);
ms.Read(lastSector, 0, 512);
Assert.AreNotEqual(firstSector, lastSector);
}
// Also check that after disposing, the commit happens
ms.Position = 0;
ms.Read(firstSector, 0, 512);
ms.Seek(-512, SeekOrigin.End);
ms.Read(lastSector, 0, 512);
Assert.AreEqual(firstSector, lastSector);
// Finally, check default value for AutoCommit lines up with behaviour
using (Disk disk = new Disk(ms, Ownership.None))
{
Assert.True(disk.AutoCommitFooter);
}
}
