74 lines
2.1 KiB
Rust
74 lines
2.1 KiB
Rust
use futures::executor::block_on;
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use futures::io::{AsyncWriteExt, LineWriter};
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use std::io;
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#[test]
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fn line_writer() {
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let mut writer = LineWriter::new(Vec::new());
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block_on(writer.write(&[0])).unwrap();
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assert_eq!(*writer.get_ref(), []);
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block_on(writer.write(&[1])).unwrap();
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assert_eq!(*writer.get_ref(), []);
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block_on(writer.flush()).unwrap();
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assert_eq!(*writer.get_ref(), [0, 1]);
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block_on(writer.write(&[0, b'\n', 1, b'\n', 2])).unwrap();
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assert_eq!(*writer.get_ref(), [0, 1, 0, b'\n', 1, b'\n']);
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block_on(writer.flush()).unwrap();
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assert_eq!(*writer.get_ref(), [0, 1, 0, b'\n', 1, b'\n', 2]);
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block_on(writer.write(&[3, b'\n'])).unwrap();
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assert_eq!(*writer.get_ref(), [0, 1, 0, b'\n', 1, b'\n', 2, 3, b'\n']);
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}
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#[test]
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fn line_vectored() {
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let mut line_writer = LineWriter::new(Vec::new());
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assert_eq!(
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block_on(line_writer.write_vectored(&[
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io::IoSlice::new(&[]),
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io::IoSlice::new(b"\n"),
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io::IoSlice::new(&[]),
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io::IoSlice::new(b"a"),
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]))
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.unwrap(),
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2
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);
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assert_eq!(line_writer.get_ref(), b"\n");
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assert_eq!(
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block_on(line_writer.write_vectored(&[
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io::IoSlice::new(&[]),
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io::IoSlice::new(b"b"),
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io::IoSlice::new(&[]),
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io::IoSlice::new(b"a"),
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io::IoSlice::new(&[]),
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io::IoSlice::new(b"c"),
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]))
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.unwrap(),
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3
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);
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assert_eq!(line_writer.get_ref(), b"\n");
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block_on(line_writer.flush()).unwrap();
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assert_eq!(line_writer.get_ref(), b"\nabac");
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assert_eq!(block_on(line_writer.write_vectored(&[])).unwrap(), 0);
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assert_eq!(
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block_on(line_writer.write_vectored(&[
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io::IoSlice::new(&[]),
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io::IoSlice::new(&[]),
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io::IoSlice::new(&[]),
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io::IoSlice::new(&[]),
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]))
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.unwrap(),
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0
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);
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assert_eq!(block_on(line_writer.write_vectored(&[io::IoSlice::new(b"a\nb")])).unwrap(), 3);
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assert_eq!(line_writer.get_ref(), b"\nabaca\nb");
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}
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