public void TestPutPrefixedString()
{
Encoding encoding = Encoding.GetEncoding("ISO-8859-1");
IoBuffer buf = IoBuffer.Allocate(16);
buf.FillAndReset(buf.Remaining);
// Without autoExpand
buf.PutPrefixedString("ABC", encoding);
Assert.AreEqual(5, buf.Position);
Assert.AreEqual(0, buf.Get(0));
Assert.AreEqual(3, buf.Get(1));
Assert.AreEqual((byte)'A', buf.Get(2));
Assert.AreEqual((byte)'B', buf.Get(3));
Assert.AreEqual((byte)'C', buf.Get(4));
buf.Clear();
try
{
buf.PutPrefixedString("123456789012345", encoding);
Assert.Fail();
}
catch (OverflowException)
{
// Expected an Exception, signifies test success
Assert.IsTrue(true);
}
// With autoExpand
buf.Clear();
buf.AutoExpand = true;
buf.PutPrefixedString("123456789012345", encoding);
Assert.AreEqual(17, buf.Position);
Assert.AreEqual(0, buf.Get(0));
Assert.AreEqual(15, buf.Get(1));
Assert.AreEqual((byte)'1', buf.Get(2));
Assert.AreEqual((byte)'2', buf.Get(3));
Assert.AreEqual((byte)'3', buf.Get(4));
Assert.AreEqual((byte)'4', buf.Get(5));
Assert.AreEqual((byte)'5', buf.Get(6));
Assert.AreEqual((byte)'6', buf.Get(7));
Assert.AreEqual((byte)'7', buf.Get(8));
Assert.AreEqual((byte)'8', buf.Get(9));
Assert.AreEqual((byte)'9', buf.Get(10));
Assert.AreEqual((byte)'0', buf.Get(11));
Assert.AreEqual((byte)'1', buf.Get(12));
Assert.AreEqual((byte)'2', buf.Get(13));
Assert.AreEqual((byte)'3', buf.Get(14));
Assert.AreEqual((byte)'4', buf.Get(15));
Assert.AreEqual((byte)'5', buf.Get(16));
}
public void TestGetString()
{
IoBuffer buf = ByteBufferAllocator.Instance.Allocate(16);
Encoding encoding = Encoding.UTF8;
buf.Clear();
buf.PutString("hello", encoding);
buf.Put((Byte)0);
buf.Flip();
Assert.AreEqual("hello", buf.GetString(encoding));
buf.Clear();
buf.PutString("hello", encoding);
buf.Flip();
Assert.AreEqual("hello", buf.GetString(encoding));
encoding = Encoding.GetEncoding("ISO-8859-1");
buf.Clear();
buf.Put((Byte)'A');
buf.Put((Byte)'B');
buf.Put((Byte)'C');
buf.Put((Byte)0);
buf.Position = 0;
Assert.AreEqual("ABC", buf.GetString(encoding));
Assert.AreEqual(4, buf.Position);
buf.Position = 0;
buf.Limit = 1;
Assert.AreEqual("A", buf.GetString(encoding));
Assert.AreEqual(1, buf.Position);
buf.Clear();
Assert.AreEqual("ABC", buf.GetString(10, encoding));
Assert.AreEqual(10, buf.Position);
buf.Clear();
Assert.AreEqual("A", buf.GetString(1, encoding));
Assert.AreEqual(1, buf.Position);
// Test a trailing garbage
buf.Clear();
buf.Put((Byte)'A');
buf.Put((Byte)'B');
buf.Put((Byte)0);
buf.Put((Byte)'C');
buf.Position = 0;
Assert.AreEqual("AB", buf.GetString(4, encoding));
Assert.AreEqual(4, buf.Position);
buf.Clear();
buf.FillAndReset(buf.Limit);
encoding = Encoding.GetEncoding("UTF-16BE");
buf.Put((Byte)0);
buf.Put((Byte)'A');
buf.Put((Byte)0);
buf.Put((Byte)'B');
buf.Put((Byte)0);
buf.Put((Byte)'C');
buf.Put((Byte)0);
buf.Put((Byte)0);
buf.Position = 0;
Assert.AreEqual("ABC", buf.GetString(encoding));
Assert.AreEqual(8, buf.Position);
buf.Position = 0;
buf.Limit = 2;
Assert.AreEqual("A", buf.GetString(encoding));
Assert.AreEqual(2, buf.Position);
buf.Position = 0;
buf.Limit = 3;
Assert.AreEqual("A", buf.GetString(encoding));
Assert.AreEqual(2, buf.Position);
buf.Clear();
Assert.AreEqual("ABC", buf.GetString(10, encoding));
Assert.AreEqual(10, buf.Position);
buf.Clear();
Assert.AreEqual("A", buf.GetString(2, encoding));
Assert.AreEqual(2, buf.Position);
buf.Clear();
try
{
buf.GetString(1, encoding);
Assert.Fail();
}
catch (Exception)
{
// Expected an Exception, signifies test success
Assert.IsTrue(true);
}
// Test getting strings from an empty buffer.
buf.Clear();
buf.Limit = 0;
Assert.AreEqual("", buf.GetString(encoding));
Assert.AreEqual("", buf.GetString(2, encoding));
// Test getting strings from non-empty buffer which is filled with 0x00
buf.Clear();
buf.PutInt32(0);
buf.Clear();
buf.Limit = 4;
Assert.AreEqual("", buf.GetString(encoding));
Assert.AreEqual(2, buf.Position);
Assert.AreEqual(4, buf.Limit);
buf.Position = 0;
Assert.AreEqual("", buf.GetString(2, encoding));
Assert.AreEqual(2, buf.Position);
Assert.AreEqual(4, buf.Limit);
}
/// <inheritdoc/>
public override IoBuffer FillAndReset(Int32 size)
{
_buf.FillAndReset(size);
return(this);
}
