public void AppendArrayWhenCountIsZero()
{
var controller = new BufferController(new byte[3], 0, 3);
controller.Append(new byte[0], 0, 0).Should().BeNull();
controller.Availability.Should().Be(3);
controller.Count.Should().Be(0);
}
public void AppendBufferListThatIsEmpty()
{
var controller = new BufferController(new byte[3], 0, 3);
controller.Append(Enumerable.Empty <byte[]>()).Should().BeEmpty();
controller.Availability.Should().Be(3);
controller.Count.Should().Be(0);
}
public void AppendWithReadDelegateThrowsIfNoAvailability()
{
var buffer = new byte[0];
var controller = new BufferController(buffer, 0, buffer.Length);
Invoking(() => controller.Append(Read))
.Should().Throw <InvalidOperationException>().WithMessage($"{nameof(BufferController)} has no more availability to append further bytes to buffer.");
}
public void AppendEmptyArray()
{
var controller = new BufferController(new byte[3], 0, 3);
controller.Append(new byte[] { }).Should().BeEquivalentTo(new byte[] { });
controller.Availability.Should().Be(3);
controller.Count.Should().Be(0);
}
public void AppendWhenNoAvailability()
{
var controller = new BufferController(new byte[] { 1, 2, 3 }, 3, 0);
controller.Append(new byte[] { 4, 5 }).Should().BeEquivalentTo(new byte[] { 4, 5 });
controller.Availability.Should().Be(0);
controller.Count.Should().Be(0);
}
public void AppendNullArray()
{
var controller = new BufferController(new byte[3], 0, 3);
controller.Append((byte[])null).Should().BeNull();
controller.Availability.Should().Be(3);
controller.Count.Should().Be(0);
}
public void AppendMoreThanAvailable()
{
var controller = new BufferController(new byte[3], 0, 3);
controller.Append(new byte[] { 1, 2, 3, 4, 5 }).Should().BeEquivalentTo(new byte[] { 4, 5 });
controller.Availability.Should().Be(0);
controller.Count.Should().Be(3);
}
public void AppendLessThanAvailable()
{
var controller = new BufferController(new byte[3], 0, 3);
controller.Append(new byte[] { 1, 2, 3 }).Should().BeNull();
controller.Availability.Should().Be(0);
controller.Count.Should().Be(3);
}
public void AppendArrayWhenNoAvailability()
{
var controller = new BufferController(new byte[3], 3, 0);
controller.Append(new byte[] { 1, 2, 3, 4, 5, 6, 7 }, 2, 5).Should().BeEquivalentTo(new byte[] { 3, 4, 5, 6, 7 });
controller.Availability.Should().Be(0);
controller.Count.Should().Be(0);
}
public void AppendBufferListThrows()
{
var controller = new BufferController(new byte[3], 0, 3);
Assert.That(
() => controller.Append((IEnumerable <byte[]>)null),
Throws.InstanceOf <ArgumentNullException>()
.With.Message.EqualTo("Value cannot be null.\r\nParameter name: buffers"));
}
public void AppendEmptyArray()
{
var controller = new BufferController(new byte[3], 0, 3);
Assert.That(controller.Append(new byte[] { }), Is.EqualTo(new byte[] { }));
Assert.That(controller.Availability, Is.EqualTo(3));
Assert.That(controller.Count, Is.EqualTo(0));
Assert.That(controller.Availability, Is.EqualTo(3));
Assert.That(controller.Count, Is.EqualTo(0));
}
public void AppendFromArrayLessThanAvailable()
{
var buffer = new byte[3];
var controller = new BufferController(buffer, 0, buffer.Length);
Assert.That(controller.Append(new byte[] { 1, 2, 3 }, 1, 2), Is.Empty);
Assert.That(buffer, Is.EqualTo(new byte[] { 2, 3, 0 }));
Assert.That(controller.Availability, Is.EqualTo(1));
Assert.That(controller.Count, Is.EqualTo(2));
}
public void AppendFromArrayMoreThanAvailable()
{
var buffer = new byte[3];
var controller = new BufferController(buffer, 0, buffer.Length);
Assert.That(controller.Append(new byte[] { 1, 2, 3, 4, 5, 6, 7 }, 2, 5), Is.EqualTo(new byte[] { 6, 7 }));
Assert.That(buffer, Is.EqualTo(new byte[] { 3, 4, 5 }));
Assert.That(controller.Availability, Is.EqualTo(0));
Assert.That(controller.Count, Is.EqualTo(3));
}
public void AppendWithReadDelegateThrowsIfNoAvailability()
{
var buffer = new byte[0];
var controller = new BufferController(buffer, 0, buffer.Length);
Assert.That(
() => controller.Append(Read),
Throws.TypeOf <InvalidOperationException>()
.With.Message.EqualTo(string.Format("{0} has no more availability to append further bytes to buffer.", typeof(BufferController).Name)));
}
public void AppendArrayThatExceedsAvailability()
{
var buffer = new byte[3];
var controller = new BufferController(buffer, 0, buffer.Length);
controller.Append(new byte[] { 1, 2, 3, 4, 5, 6, 7 }, 2, 5).Should().BeEquivalentTo(new byte[] { 6, 7 });
controller.Availability.Should().Be(0);
controller.Count.Should().Be(3);
buffer.Should().BeEquivalentTo(new byte[] { 3, 4, 5 });
}
public void AppendArrayThatDoesNotExceedAvailability()
{
var buffer = new byte[3];
var controller = new BufferController(buffer, 0, buffer.Length);
controller.Append(new byte[] { 1, 2, 3 }, 1, 2).Should().BeEmpty();
controller.Availability.Should().Be(1);
controller.Count.Should().Be(2);
buffer.Should().BeEquivalentTo(new byte[] { 2, 3, 0 });
}
public override int Read(byte[] buffer, int offset, int count)
{
var bufferController = new BufferController(buffer, offset, count);
// try to exhaust backlog if any while keeping any extra of it
_backlog = bufferController.Append(_backlog);
while (bufferController.Availability > 0 && _enumerator.MoveNext())
{
_backlog = bufferController.Append(_enumerator.Current);
}
_position += bufferController.Count;
return(bufferController.Count);
}
public void AppendBufferListWhenNoAvailability()
{
var controller = new BufferController(new byte[3], 3, 0);
var buffers = new[] {
new byte[] { 1, 2, 3 },
new byte[] { 4, 5, 6, 7 },
new byte[] { 8, 9, 8 }
};
Assert.That(controller.Append(buffers), Is.EqualTo(buffers));
Assert.That(controller.Availability, Is.EqualTo(0));
Assert.That(controller.Count, Is.EqualTo(0));
}
public void AppendWithReadDelegate()
{
var buffer = new byte[10];
var controller = new BufferController(buffer, 0, buffer.Length);
controller.Append(new byte[] { 0, 1 });
controller.Append(Read);
Assert.That(buffer, Is.EqualTo(new byte[] { 0, 1, 2, 3, 4, 5, 6, 7, 0, 0 }));
Assert.That(controller.Availability, Is.EqualTo(2));
Assert.That(controller.Count, Is.EqualTo(8));
}
public void AppendBufferListWhenNoAvailability()
{
var controller = new BufferController(new byte[3], 3, 0);
var buffers = new[] {
new byte[] { 1, 2, 3 },
new byte[] { 4, 5, 6, 7 },
new byte[] { 8, 9, 8 }
};
controller.Append(buffers).Should().BeEquivalentTo(buffers);
controller.Availability.Should().Be(0);
controller.Count.Should().Be(0);
}
public void AppendWithReadDelegate()
{
var buffer = new byte[10];
var controller = new BufferController(buffer, 0, buffer.Length);
controller.Append(new byte[] { 0, 1 });
controller.Append(Read);
controller.Availability.Should().Be(2);
controller.Count.Should().Be(8);
buffer.Should().BeEquivalentTo(new byte[] { 0, 1, 2, 3, 4, 5, 6, 7, 0, 0 });
}
public override int Read(byte[] buffer, int offset, int count)
{
var bufferController = new BufferController(buffer, offset, count);
// try to exhaust backlog if any while keeping any overflowing content
_backlog = bufferController.Append(_backlog);
while (bufferController.Availability > 0 && !EOF)
{
// append to buffer and keep any overflowing content
_backlog = bufferController.Append(ReadNextNode(), Encoding);
}
_position += bufferController.Count;
return(bufferController.Count);
}
public void AppendBufferListLessThanAvailable()
{
var buffer = new byte[10];
var controller = new BufferController(buffer, 0, buffer.Length);
var buffers = new[] {
new byte[] { 1, 2, 3 },
new byte[] { 4, 5, 6, 7 },
new byte[] { 8, 9 }
};
Assert.That(controller.Append(buffers), Is.Empty);
Assert.That(buffer, Is.EqualTo(new byte[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 0 }));
Assert.That(controller.Availability, Is.EqualTo(1));
Assert.That(controller.Count, Is.EqualTo(9));
}
public void AppendBufferListThatDoNoExceedAvailability()
{
var buffer = new byte[10];
var controller = new BufferController(buffer, 0, buffer.Length);
var buffers = new[] {
new byte[] { 1, 2, 3 },
new byte[] { 4, 5, 6, 7 },
new byte[] { 8, 9 }
};
controller.Append(buffers).Should().BeEmpty();
buffer.Should().BeEquivalentTo(new byte[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 0 });
controller.Availability.Should().Be(1);
controller.Count.Should().Be(9);
}
public void AppendArrayThrows()
{
var controller = new BufferController(new byte[3], 0, 3);
Invoking(() => controller.Append(null, 0, 0))
.Should().Throw <ArgumentNullException>().Where(e => e.ParamName == "bytes");
Invoking(() => controller.Append(new byte[0], -1, 0))
.Should().Throw <ArgumentException>().WithMessage("Offset cannot be negative.*");
Invoking(() => controller.Append(new byte[0], 1, -1))
.Should().Throw <ArgumentException>().WithMessage("Count cannot be negative.*");
Invoking(() => controller.Append(new byte[0], 1, 0))
.Should().Throw <ArgumentException>().WithMessage("The sum of offset and count is greater than the byte array length.");
Invoking(() => controller.Append(new byte[2], 0, 3))
.Should().Throw <ArgumentException>().WithMessage("The sum of offset and count is greater than the byte array length.");
Invoking(() => controller.Append(new byte[0], 0, 0))
.Should().NotThrow();
}
public void AppendBufferListMoreThanAvailable()
{
var buffer = new byte[9];
var controller = new BufferController(buffer, 0, buffer.Length);
var buffers = new[] {
new byte[] { 1, 2, 3 },
new byte[] { 4, 5, 6, 7 },
new byte[] { 8, 9, 8 },
new byte[] { 7, 6, 5 }
};
Assert.That(
controller.Append(buffers),
Is.EqualTo(
new[] {
new byte[] { 8 },
new byte[] { 7, 6, 5 }
}));
Assert.That(buffer, Is.EqualTo(new byte[] { 1, 2, 3, 4, 5, 6, 7, 8, 9 }));
Assert.That(controller.Availability, Is.EqualTo(0));
Assert.That(controller.Count, Is.EqualTo(9));
}
public void AppendBufferListThrows()
{
var controller = new BufferController(new byte[3], 0, 3);
Invoking(() => controller.Append((IEnumerable <byte[]>)null)).Should().Throw <ArgumentNullException>().Where(e => e.ParamName == "buffers");
}