public void TestGetPosition()
{
using (MemoryStream memoryStream = new MemoryStream()) {
memoryStream.SetLength(123);
PartialStream partialStream = new PartialStream(memoryStream, 23, 100);
Assert.AreEqual(0, partialStream.Position);
byte[] test = new byte[10];
int bytesRead = partialStream.Read(test, 0, 10);
Assert.AreEqual(10, bytesRead);
Assert.AreEqual(10, partialStream.Position);
bytesRead = partialStream.Read(test, 0, 10);
Assert.AreEqual(10, bytesRead);
Assert.AreEqual(20, partialStream.Position);
}
}
public void TestThrowOnReadFromUnreadableStream()
{
using (MemoryStream memoryStream = new MemoryStream()) {
TestStream testStream = new TestStream(memoryStream, false, true, true);
PartialStream partialStream = new PartialStream(testStream, 0, 0);
byte[] test = new byte[10];
Assert.Throws <NotSupportedException>(
delegate() { Console.WriteLine(partialStream.Read(test, 0, 10)); }
);
}
}
public void TestReadFromPartialStream()
{
using (MemoryStream memoryStream = new MemoryStream()) {
memoryStream.SetLength(123);
memoryStream.Position = 100;
memoryStream.Write(new byte[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 }, 0, 10);
PartialStream partialStream = new PartialStream(memoryStream, 95, 10);
byte[] buffer = new byte[15];
int bytesRead = partialStream.Read(buffer, 0, 15);
Assert.AreEqual(10, bytesRead);
Assert.AreEqual(
new byte[] { 0, 0, 0, 0, 0, 1, 2, 3, 4, 5, 0, 0, 0, 0, 0 }, buffer
);
}
}
public void TestReadFromPartialStream() {
using(MemoryStream memoryStream = new MemoryStream()) {
memoryStream.SetLength(123);
memoryStream.Position = 100;
memoryStream.Write(new byte[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 }, 0, 10);
PartialStream partialStream = new PartialStream(memoryStream, 95, 10);
byte[] buffer = new byte[15];
int bytesRead = partialStream.Read(buffer, 0, 15);
Assert.AreEqual(10, bytesRead);
Assert.AreEqual(
new byte[] { 0, 0, 0, 0, 0, 1, 2, 3, 4, 5, 0, 0, 0, 0, 0 }, buffer
);
}
}
public void TestThrowOnReadFromUnreadableStream() {
using(MemoryStream memoryStream = new MemoryStream()) {
TestStream testStream = new TestStream(memoryStream, false, true, true);
PartialStream partialStream = new PartialStream(testStream, 0, 0);
byte[] test = new byte[10];
Assert.Throws<NotSupportedException>(
delegate() { Console.WriteLine(partialStream.Read(test, 0, 10)); }
);
}
}
public void TestGetPosition() {
using(MemoryStream memoryStream = new MemoryStream()) {
memoryStream.SetLength(123);
PartialStream partialStream = new PartialStream(memoryStream, 23, 100);
Assert.AreEqual(0, partialStream.Position);
byte[] test = new byte[10];
int bytesRead = partialStream.Read(test, 0, 10);
Assert.AreEqual(10, bytesRead);
Assert.AreEqual(10, partialStream.Position);
bytesRead = partialStream.Read(test, 0, 10);
Assert.AreEqual(10, bytesRead);
Assert.AreEqual(20, partialStream.Position);
}
}
