public void TestSeeking()
{
using (MemoryStream memoryStream = new MemoryStream()) {
memoryStream.SetLength(20);
PartialStream partialStream = new PartialStream(memoryStream, 0, 20);
Assert.AreEqual(7, partialStream.Seek(-13, SeekOrigin.End));
Assert.AreEqual(14, partialStream.Seek(7, SeekOrigin.Current));
Assert.AreEqual(11, partialStream.Seek(11, SeekOrigin.Begin));
}
}
public void TestThrowOnSetPositionOnUnseekableStream()
{
using (MemoryStream memoryStream = new MemoryStream()) {
TestStream testStream = new TestStream(memoryStream, true, true, false);
PartialStream partialStream = new PartialStream(testStream, 0, 0);
Assert.Throws <NotSupportedException>(
delegate() { partialStream.Position = 0; }
);
}
}
public void TestThrowOnExtendPartialStream()
{
using (MemoryStream memoryStream = new MemoryStream()) {
memoryStream.SetLength(25);
PartialStream partialStream = new PartialStream(memoryStream, 10, 10);
partialStream.Position = 5;
Assert.Throws <NotSupportedException>(
delegate() { partialStream.Write(new byte[] { 1, 2, 3, 4, 5, 6 }, 0, 6); }
);
}
}
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 TestSetPosition()
{
using (MemoryStream memoryStream = new MemoryStream()) {
memoryStream.SetLength(123);
PartialStream partialStream = new PartialStream(memoryStream, 23, 100);
Assert.AreEqual(0, partialStream.Position);
partialStream.Position = 7;
Assert.AreEqual(partialStream.Position, 7);
partialStream.Position = 14;
Assert.AreEqual(partialStream.Position, 14);
}
}
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 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 TestWriteToPartialStream()
{
using (MemoryStream memoryStream = new MemoryStream()) {
memoryStream.SetLength(123);
memoryStream.Position = 60;
memoryStream.Write(new byte[] { 11, 12, 13, 14, 15 }, 0, 5);
PartialStream partialStream = new PartialStream(memoryStream, 50, 15);
partialStream.Position = 3;
partialStream.Write(new byte[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 }, 0, 10);
byte[] buffer = new byte[17];
memoryStream.Position = 49;
int bytesRead = memoryStream.Read(buffer, 0, 17);
Assert.AreEqual(17, bytesRead);
Assert.AreEqual(
new byte[] { 0, 0, 0, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 14, 15, 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 TestThrowOnSetPositionOnUnseekableStream() {
using(MemoryStream memoryStream = new MemoryStream()) {
TestStream testStream = new TestStream(memoryStream, true, true, false);
PartialStream partialStream = new PartialStream(testStream, 0, 0);
Assert.Throws<NotSupportedException>(
delegate() { partialStream.Position = 0; }
);
}
}
public void TestSetPosition() {
using(MemoryStream memoryStream = new MemoryStream()) {
memoryStream.SetLength(123);
PartialStream partialStream = new PartialStream(memoryStream, 23, 100);
Assert.AreEqual(0, partialStream.Position);
partialStream.Position = 7;
Assert.AreEqual(partialStream.Position, 7);
partialStream.Position = 14;
Assert.AreEqual(partialStream.Position, 14);
}
}
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 TestWriteToPartialStream() {
using(MemoryStream memoryStream = new MemoryStream()) {
memoryStream.SetLength(123);
memoryStream.Position = 60;
memoryStream.Write(new byte[] { 11, 12, 13, 14, 15 }, 0, 5);
PartialStream partialStream = new PartialStream(memoryStream, 50, 15);
partialStream.Position = 3;
partialStream.Write(new byte[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 }, 0, 10);
byte[] buffer = new byte[17];
memoryStream.Position = 49;
int bytesRead = memoryStream.Read(buffer, 0, 17);
Assert.AreEqual(17, bytesRead);
Assert.AreEqual(
new byte[] { 0, 0, 0, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 14, 15, 0 },
buffer
);
}
}
public void TestThrowOnLengthChange() {
using(MemoryStream memoryStream = new MemoryStream()) {
PartialStream partialStream = new PartialStream(memoryStream, 0, 0);
Assert.Throws<NotSupportedException>(
delegate() { partialStream.SetLength(123); }
);
}
}
public void TestSeeking() {
using(MemoryStream memoryStream = new MemoryStream()) {
memoryStream.SetLength(20);
PartialStream partialStream = new PartialStream(memoryStream, 0, 20);
Assert.AreEqual(7, partialStream.Seek(-13, SeekOrigin.End));
Assert.AreEqual(14, partialStream.Seek(7, SeekOrigin.Current));
Assert.AreEqual(11, partialStream.Seek(11, SeekOrigin.Begin));
}
}
public void TestThrowOnInvalidSeekReferencePoint() {
using(MemoryStream memoryStream = new MemoryStream()) {
PartialStream partialStream = new PartialStream(memoryStream, 0, 0);
Assert.Throws<ArgumentException>(
delegate() { partialStream.Seek(1, (SeekOrigin)12345); }
);
}
}
public void TestConstructor() {
using(MemoryStream memoryStream = new MemoryStream()) {
memoryStream.SetLength(123);
PartialStream partialStream = new PartialStream(memoryStream, 23, 100);
Assert.AreEqual(100, partialStream.Length);
}
}
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 TestCompleteStreamProperty() {
using(MemoryStream memoryStream = new MemoryStream()) {
PartialStream partialStream = new PartialStream(memoryStream, 0, 0);
Assert.AreSame(memoryStream, partialStream.CompleteStream);
}
}
public void TestThrowOnExtendPartialStream() {
using(MemoryStream memoryStream = new MemoryStream()) {
memoryStream.SetLength(25);
PartialStream partialStream = new PartialStream(memoryStream, 10, 10);
partialStream.Position = 5;
Assert.Throws<NotSupportedException>(
delegate() { partialStream.Write(new byte[] { 1, 2, 3, 4, 5, 6 }, 0, 6); }
);
}
}
public void TestFlush() {
using(MemoryStream memoryStream = new MemoryStream()) {
PartialStream partialStream = new PartialStream(memoryStream, 0, 0);
partialStream.Flush();
}
}
