multiio 0.2.3

A unified I/O orchestration library for CLI/server applications
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67

use std::io::Cursor;

use crate::format::{FormatKind, default_registry, deserialize_plaintext_stream};

#[test]
fn plaintext_stream_yields_lines_as_strings() {
    let input = "alpha\nbeta\n\ngamma\n";
    let iter = deserialize_plaintext_stream::<String, _>(Cursor::new(input.as_bytes()));

    let lines: Vec<String> = iter.collect::<Result<_, _>>().expect("lines should parse");

    assert_eq!(
        lines,
        vec![
            "alpha".to_string(),
            "beta".to_string(),
            "".to_string(),
            "gamma".to_string(),
        ]
    );
}

#[test]
fn plaintext_stream_via_registry_yields_lines() {
    let input = "one\ntwo\n";
    let registry = default_registry();

    let iter = registry
        .stream_deserialize_into::<String>(
            Some(&FormatKind::Plaintext),
            &[],
            Box::new(Cursor::new(input.as_bytes())),
        )
        .expect("plaintext streaming should be supported");

    let lines: Vec<String> = iter.collect::<Result<_, _>>().expect("lines should parse");

    assert_eq!(lines, vec!["one".to_string(), "two".to_string()]);
}

#[test]
fn plaintext_stream_empty_input_yields_no_items() {
    let input = "";
    let iter = deserialize_plaintext_stream::<String, _>(Cursor::new(input.as_bytes()));

    let lines: Vec<String> = iter.collect::<Result<_, _>>().expect("lines should parse");

    assert!(lines.is_empty());
}

#[test]
fn plaintext_stream_via_registry_empty_input_yields_no_items() {
    let input = "";
    let registry = default_registry();

    let iter = registry
        .stream_deserialize_into::<String>(
            Some(&FormatKind::Plaintext),
            &[],
            Box::new(Cursor::new(input.as_bytes())),
        )
        .expect("plaintext streaming should be supported");

    let lines: Vec<String> = iter.collect::<Result<_, _>>().expect("lines should parse");

    assert!(lines.is_empty());
}