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* io: implement MultiReader struct Implement a MultiReader (InStream) which sequentially read from the provided readers (InStreams). Return IoError.EOF when all of the readers are read. * io: implement MultiWriter struct Implement a MultiWriter (OutStream). The MultiWriter duplicates its writes to all the provided writers (OutStream). * io: implement TeeReader struct Implement a TeeReader (InStream) which reads from a wrapped reader (InStream) and writes data to the provided writer (OutStream).
22 lines
371 B
Plaintext
22 lines
371 B
Plaintext
module std::io @test;
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fn void! test_multireader()
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{
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MultiReader mr;
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mr.temp_init(
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&&wrap_bytes("foo"),
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&&wrap_bytes(" "),
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&&wrap_bytes("bar"),
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&&wrap_bytes("!"),
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);
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defer mr.free();
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ByteWriter w;
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io::copy_to(&mr, w.temp_init())!;
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String want = "foo bar!";
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assert(w.str_view() == want,
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"invalid data read; got: %s, want: %s", w.str_view(), want);
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}
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