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|
use crate::Uuid;
impl Uuid {
/// Creates a UUID using a name from a namespace, based on the MD5
/// hash.
///
/// A number of namespaces are available as constants in this crate:
///
/// * [`NAMESPACE_DNS`]
/// * [`NAMESPACE_OID`]
/// * [`NAMESPACE_URL`]
/// * [`NAMESPACE_X500`]
///
/// Note that usage of this method requires the `v3` feature of this crate
/// to be enabled.
///
/// # Examples
///
/// Generating a MD5 DNS UUID for `rust-lang.org`:
///
/// ```
/// # use uuid::{Uuid, Version};
/// let uuid = Uuid::new_v3(&Uuid::NAMESPACE_DNS, b"rust-lang.org");
///
/// assert_eq!(Some(Version::Md5), uuid.get_version());
/// ```
///
/// # References
///
/// * [Version 3 and 5 UUIDs in RFC4122](https://www.rfc-editor.org/rfc/rfc4122#section-4.3)
///
/// [`NAMESPACE_DNS`]: #associatedconstant.NAMESPACE_DNS
/// [`NAMESPACE_OID`]: #associatedconstant.NAMESPACE_OID
/// [`NAMESPACE_URL`]: #associatedconstant.NAMESPACE_URL
/// [`NAMESPACE_X500`]: #associatedconstant.NAMESPACE_X500
pub fn new_v3(namespace: &Uuid, name: &[u8]) -> Uuid {
crate::Builder::from_md5_bytes(crate::md5::hash(namespace.as_bytes(), name)).into_uuid()
}
}
#[cfg(test)]
mod tests {
use super::*;
#[cfg(target_arch = "wasm32")]
use wasm_bindgen_test::*;
use crate::{std::string::ToString, Variant, Version};
static FIXTURE: &'static [(&'static Uuid, &'static str, &'static str)] = &[
(
&Uuid::NAMESPACE_DNS,
"example.org",
"04738bdf-b25a-3829-a801-b21a1d25095b",
),
(
&Uuid::NAMESPACE_DNS,
"rust-lang.org",
"c6db027c-615c-3b4d-959e-1a917747ca5a",
),
(
&Uuid::NAMESPACE_DNS,
"42",
"5aab6e0c-b7d3-379c-92e3-2bfbb5572511",
),
(
&Uuid::NAMESPACE_DNS,
"lorem ipsum",
"4f8772e9-b59c-3cc9-91a9-5c823df27281",
),
(
&Uuid::NAMESPACE_URL,
"example.org",
"39682ca1-9168-3da2-a1bb-f4dbcde99bf9",
),
(
&Uuid::NAMESPACE_URL,
"rust-lang.org",
"7ed45aaf-e75b-3130-8e33-ee4d9253b19f",
),
(
&Uuid::NAMESPACE_URL,
"42",
"08998a0c-fcf4-34a9-b444-f2bfc15731dc",
),
(
&Uuid::NAMESPACE_URL,
"lorem ipsum",
"e55ad2e6-fb89-34e8-b012-c5dde3cd67f0",
),
(
&Uuid::NAMESPACE_OID,
"example.org",
"f14eec63-2812-3110-ad06-1625e5a4a5b2",
),
(
&Uuid::NAMESPACE_OID,
"rust-lang.org",
"6506a0ec-4d79-3e18-8c2b-f2b6b34f2b6d",
),
(
&Uuid::NAMESPACE_OID,
"42",
"ce6925a5-2cd7-327b-ab1c-4b375ac044e4",
),
(
&Uuid::NAMESPACE_OID,
"lorem ipsum",
"5dd8654f-76ba-3d47-bc2e-4d6d3a78cb09",
),
(
&Uuid::NAMESPACE_X500,
"example.org",
"64606f3f-bd63-363e-b946-fca13611b6f7",
),
(
&Uuid::NAMESPACE_X500,
"rust-lang.org",
"bcee7a9c-52f1-30c6-a3cc-8c72ba634990",
),
(
&Uuid::NAMESPACE_X500,
"42",
"c1073fa2-d4a6-3104-b21d-7a6bdcf39a23",
),
(
&Uuid::NAMESPACE_X500,
"lorem ipsum",
"02f09a3f-1624-3b1d-8409-44eff7708208",
),
];
#[test]
#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test)]
fn test_new() {
for &(ref ns, ref name, _) in FIXTURE {
let uuid = Uuid::new_v3(*ns, name.as_bytes());
assert_eq!(uuid.get_version(), Some(Version::Md5));
assert_eq!(uuid.get_variant(), Variant::RFC4122);
}
}
#[test]
#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test)]
fn test_hyphenated_string() {
for &(ref ns, ref name, ref expected) in FIXTURE {
let uuid = Uuid::new_v3(*ns, name.as_bytes());
assert_eq!(uuid.hyphenated().to_string(), *expected);
}
}
}
|
