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std/testing/iotest ​

Index ​

fn OneByteReader(mut r: io::Reader): io::Reader
fn HalfReader(mut r: io::Reader): io::Reader
fn DataErrReader(mut r: io::Reader): io::Reader

OneByteReader ​

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fn OneByteReader(mut r: io::Reader): io::Reader

Returns a Reader that implements each non-empty Read by reading one byte from r.

HalfReader ​

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fn HalfReader(mut r: io::Reader): io::Reader

Returns a Reader that implements Read by reading half as many requested bytes from r.

DataErrReader ​

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fn DataErrReader(mut r: io::Reader): io::Reader

Changes the way errors are handled by a Reader. Normally, a Reader returns an error from the first Read call after the last piece of data is read. DataErrReader wraps a Reader and changes its behavior so the final error is returned along with the final data, instead of in the first call after the final data.