public void TestPutPrefixedStringWithPrefixLength()
{
Encoding encoding = Encoding.GetEncoding("ISO-8859-1");
IoBuffer buf = IoBuffer.Allocate(16).Sweep();
buf.AutoExpand = true;
buf.PutPrefixedString("A", 1, encoding);
Assert.AreEqual(2, buf.Position);
Assert.AreEqual(1, buf.Get(0));
Assert.AreEqual((byte)'A', buf.Get(1));
buf.Sweep();
buf.PutPrefixedString("A", 2, encoding);
Assert.AreEqual(3, buf.Position);
Assert.AreEqual(0, buf.Get(0));
Assert.AreEqual(1, buf.Get(1));
Assert.AreEqual((byte)'A', buf.Get(2));
buf.Sweep();
buf.PutPrefixedString("A", 4, encoding);
Assert.AreEqual(5, buf.Position);
Assert.AreEqual(0, buf.Get(0));
Assert.AreEqual(0, buf.Get(1));
Assert.AreEqual(0, buf.Get(2));
Assert.AreEqual(1, buf.Get(3));
Assert.AreEqual((byte)'A', buf.Get(4));
}
public void TestSweepNonZeros()
{
IoBuffer buf = ByteBufferAllocator.Instance.Allocate(4);
Int32 i;
unchecked
{
i = (Int32)0xdeadbeef;
}
buf.PutInt32(i);
buf.Clear();
Assert.AreEqual(i, buf.GetInt32());
Assert.AreEqual(4, buf.Position);
Assert.AreEqual(4, buf.Limit);
buf.Sweep((byte)0x45);
Assert.AreEqual(0, buf.Position);
Assert.AreEqual(4, buf.Limit);
Assert.AreEqual(0x45454545, buf.GetInt32());
}
public void TestSweepWithZeros()
{
IoBuffer buf = allocator.Allocate(4);
Int32 i;
unchecked
{
i = (Int32)0xdeadbeef;
}
buf.PutInt32(i);
buf.Clear();
Assert.AreEqual(i, buf.GetInt32());
Assert.AreEqual(4, buf.Position);
Assert.AreEqual(4, buf.Limit);
buf.Sweep();
Assert.AreEqual(0, buf.Position);
Assert.AreEqual(4, buf.Limit);
Assert.AreEqual(0x0, buf.GetInt32());
}
public void TestAutoShrink()
{
IoBuffer buf = ByteBufferAllocator.Instance.Allocate(8);
buf.AutoShrink = true;
// Make sure the buffer doesn't shrink too much (less than the initial
// capacity.)
buf.Sweep((byte)1);
buf.Fill(7);
buf.Compact();
Assert.AreEqual(8, buf.Capacity);
Assert.AreEqual(1, buf.Position);
Assert.AreEqual(8, buf.Limit);
buf.Clear();
Assert.AreEqual(1, buf.Get());
// Expand the buffer.
buf.Capacity = 32;
buf.Clear();
Assert.AreEqual(32, buf.Capacity);
// Make sure the buffer shrinks when only 1/4 is being used.
buf.Sweep((byte)1);
buf.Fill(24);
buf.Compact();
Assert.AreEqual(16, buf.Capacity);
Assert.AreEqual(8, buf.Position);
Assert.AreEqual(16, buf.Limit);
buf.Clear();
for (int i = 0; i < 8; i++)
{
Assert.AreEqual(1, buf.Get());
}
// Expand the buffer.
buf.Capacity = 32;
buf.Clear();
Assert.AreEqual(32, buf.Capacity);
// Make sure the buffer shrinks when only 1/8 is being used.
buf.Sweep((byte)1);
buf.Fill(28);
buf.Compact();
Assert.AreEqual(8, buf.Capacity);
Assert.AreEqual(4, buf.Position);
Assert.AreEqual(8, buf.Limit);
buf.Clear();
for (int i = 0; i < 4; i++)
{
Assert.AreEqual(1, buf.Get());
}
// Expand the buffer.
buf.Capacity = 32;
buf.Clear();
Assert.AreEqual(32, buf.Capacity);
// Make sure the buffer shrinks when 0 byte is being used.
buf.Fill(32);
buf.Compact();
Assert.AreEqual(8, buf.Capacity);
Assert.AreEqual(0, buf.Position);
Assert.AreEqual(8, buf.Limit);
// Expand the buffer.
buf.Capacity = 32;
buf.Clear();
Assert.AreEqual(32, buf.Capacity);
// Make sure the buffer doesn't shrink when more than 1/4 is being used.
buf.Sweep((byte)1);
buf.Fill(23);
buf.Compact();
Assert.AreEqual(32, buf.Capacity);
Assert.AreEqual(9, buf.Position);
Assert.AreEqual(32, buf.Limit);
buf.Clear();
for (int i = 0; i < 9; i++)
{
Assert.AreEqual(1, buf.Get());
}
}
/// <inheritdoc/>
public override IoBuffer Sweep()
{
_buf.Sweep();
return(this);
}
