Struct tk_bufstream::MockData

pub struct MockData { /* fields omitted */ }

A mock stream where you can push data to/from

Useful for more complex tests on streams than are possible with Mock

Methods

impl MockData

fn new() -> MockData

New, empty Mockdata

fn add_input<D: AsRef<[u8]>>(&self, data: D)

Add some bytes to the next input. This data will be read by IoBuf on thext read() call

fn output<T: Into<RangeArgument>>(&self, range: T) -> Vec<u8>

Get slice of output

Note: we only read bytes that has been write'en here, not the bytes buffered inside IoBuf.

Note 2: we use RangeArgument from netbuf here, as we already depend on netbuf anyway. Eventually we will switch to RangeArgument from std (both in netbuf and here) when latter is stable.

fn get_output(&self, num: usize) -> Vec<u8>

Get first bytes of output and remove them from output buffer

Note: we only read bytes that has been write'en here, not the bytes buffered inside IoBuf.

Trait Implementations

impl Clone for MockData

fn clone(&self) -> MockData

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Read for MockData

fn read(&mut self, buf: &mut [u8]) -> Result<usize>

Pull some bytes from this source into the specified buffer, returning how many bytes were read.

fn read_to_end(&mut self, buf: &mut Vec<u8>) -> Result<usize, Error>

Read all bytes until EOF in this source, placing them into buf.

fn read_to_string(&mut self, buf: &mut String) -> Result<usize, Error>

Read all bytes until EOF in this source, placing them into buf.

fn read_exact(&mut self, buf: &mut [u8]) -> Result<(), Error>

Read the exact number of bytes required to fill buf.

fn by_ref(&mut self) -> &mut Self

Creates a "by reference" adaptor for this instance of Read.

fn bytes(self) -> Bytes<Self>

Transforms this Read instance to an Iterator over its bytes.

fn chars(self) -> Chars<Self>

🔬 This is a nightly-only experimental API.   (io)

the semantics of a partial read/write of where errors happen is currently unclear and may change

Transforms this Read instance to an Iterator over chars.

fn chain<R>(self, next: R) -> Chain<Self, R> where R: Read

Creates an adaptor which will chain this stream with another.

fn take(self, limit: u64) -> Take<Self>

Creates an adaptor which will read at most limit bytes from it.

impl Write for MockData

fn write(&mut self, buf: &[u8]) -> Result<usize>

Write a buffer into this object, returning how many bytes were written.

fn flush(&mut self) -> Result<()>

Flush this output stream, ensuring that all intermediately buffered contents reach their destination.

fn write_all(&mut self, buf: &[u8]) -> Result<(), Error>

Attempts to write an entire buffer into this write.

fn write_fmt(&mut self, fmt: Arguments) -> Result<(), Error>

Writes a formatted string into this writer, returning any error encountered.

fn by_ref(&mut self) -> &mut Self

Creates a "by reference" adaptor for this instance of Write.

impl Io for MockData

fn poll_read(&mut self) -> Async<()>

Tests to see if this I/O object may be readable.

fn poll_write(&mut self) -> Async<()>

Tests to see if this I/O object may be writable.

fn framed<C>(self, codec: C) -> Framed<Self, C> where C: Codec

Provides a Stream and Sink interface for reading and writing to this Io object, using Decode and Encode to read and write the raw data.

fn split(self) -> (ReadHalf<Self>, WriteHalf<Self>)

Helper method for splitting this read/write object into two halves.