sqlx_core_guts/postgres/message/
parameter_status.rs

1use bytes::Bytes;
2
3use crate::error::Error;
4use crate::io::{BufExt, Decode};
5
6#[derive(Debug)]
7pub struct ParameterStatus {
8    pub name: String,
9    pub value: String,
10}
11
12impl Decode<'_> for ParameterStatus {
13    fn decode_with(mut buf: Bytes, _: ()) -> Result<Self, Error> {
14        let name = buf.get_str_nul()?;
15        let value = buf.get_str_nul()?;
16
17        Ok(Self { name, value })
18    }
19}
20
21#[test]
22fn test_decode_parameter_status() {
23    const DATA: &[u8] = b"client_encoding\x00UTF8\x00";
24
25    let m = ParameterStatus::decode(DATA.into()).unwrap();
26
27    assert_eq!(&m.name, "client_encoding");
28    assert_eq!(&m.value, "UTF8")
29}
30
31#[test]
32fn test_decode_empty_parameter_status() {
33    const DATA: &[u8] = b"\x00\x00";
34
35    let m = ParameterStatus::decode(DATA.into()).unwrap();
36
37    assert!(m.name.is_empty());
38    assert!(m.value.is_empty());
39}
40
41#[cfg(all(test, not(debug_assertions)))]
42#[bench]
43fn bench_decode_parameter_status(b: &mut test::Bencher) {
44    const DATA: &[u8] = b"client_encoding\x00UTF8\x00";
45
46    b.iter(|| {
47        ParameterStatus::decode(test::black_box(Bytes::from_static(DATA))).unwrap();
48    });
49}
50
51#[test]
52fn test_decode_parameter_status_response() {
53    const PARAMETER_STATUS_RESPONSE: &[u8] = b"crdb_version\0CockroachDB CCL v21.1.0 (x86_64-unknown-linux-gnu, built 2021/05/17 13:49:40, go1.15.11)\0";
54
55    let message = ParameterStatus::decode(Bytes::from(PARAMETER_STATUS_RESPONSE)).unwrap();
56
57    assert_eq!(message.name, "crdb_version");
58    assert_eq!(
59        message.value,
60        "CockroachDB CCL v21.1.0 (x86_64-unknown-linux-gnu, built 2021/05/17 13:49:40, go1.15.11)"
61    );
62}
sqlx_core_guts/postgres/message/parameter_status.rs

sqlx_core_guts/postgres/message/
parameter_status.rs
