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use prelude::*; cfg_if! { if #[cfg(feature = "std")] { use std::fmt; use std::str; } else { use core::fmt; use core::str; } } impl fmt::Display for Uuid { fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { fmt::LowerHex::fmt(self, f) } } impl fmt::Display for UuidVariant { fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { match *self { UuidVariant::NCS => write!(f, "NCS"), UuidVariant::RFC4122 => write!(f, "RFC4122"), UuidVariant::Microsoft => write!(f, "Microsoft"), UuidVariant::Future => write!(f, "Future"), } } } impl fmt::LowerHex for Uuid { fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { <super::Hyphenated as fmt::LowerHex>::fmt(&self.hyphenated(), f) } } impl fmt::UpperHex for Uuid { fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { <super::Hyphenated as fmt::UpperHex>::fmt(&self.hyphenated(), f) } } impl str::FromStr for Uuid { type Err = super::ParseError; fn from_str(uuid_str: &str) -> Result<Uuid, super::ParseError> { Uuid::parse_str(uuid_str) } } impl Default for Uuid { fn default() -> Self { Uuid::nil() } } #[cfg(test)] mod tests { extern crate std; use self::std::prelude::v1::*; use prelude::*; use test_util; macro_rules! check { ($buf:ident, $format:expr, $target:expr, $len:expr, $cond:expr) => { $buf.clear(); write!($buf, $format, $target).unwrap(); assert!($buf.len() == $len); assert!($buf.chars().all($cond), "{}", $buf); }; } #[test] fn test_uuid_compare() { let uuid1 = test_util::new(); let uuid2 = test_util::new2(); assert_eq!(uuid1, uuid1); assert_eq!(uuid2, uuid2); assert_ne!(uuid1, uuid2); assert_ne!(uuid2, uuid1); } #[test] fn test_uuid_default() { let default_uuid = Uuid::default(); let nil_uuid = Uuid::nil(); assert_eq!(default_uuid, nil_uuid); } #[test] fn test_uuid_display() { use super::fmt::Write; let uuid = test_util::new(); let s = uuid.to_string(); let mut buffer = String::new(); assert_eq!(s, uuid.hyphenated().to_string()); check!( buffer, "{}", uuid, 36, |c| c.is_lowercase() || c.is_digit(10) || c == '-' ); } #[test] fn test_uuid_lowerhex() { use super::fmt::Write; let mut buffer = String::new(); let uuid = test_util::new(); check!( buffer, "{:x}", uuid, 36, |c| c.is_lowercase() || c.is_digit(10) || c == '-' ); } #[test] fn test_uuid_operator_eq() { let uuid1 = test_util::new(); let uuid1_dup = uuid1.clone(); let uuid2 = test_util::new2(); assert!(uuid1 == uuid1); assert!(uuid1 == uuid1_dup); assert!(uuid1_dup == uuid1); assert!(uuid1 != uuid2); assert!(uuid2 != uuid1); assert!(uuid1_dup != uuid2); assert!(uuid2 != uuid1_dup); } #[test] fn test_uuid_to_string() { use super::fmt::Write; let uuid = test_util::new(); let s = uuid.to_string(); let mut buffer = String::new(); assert_eq!(s.len(), 36); check!(buffer, "{}", s, 36, |c| c.is_lowercase() || c.is_digit(10) || c == '-'); } #[test] fn test_uuid_upperhex() { use super::fmt::Write; let mut buffer = String::new(); let uuid = test_util::new(); check!( buffer, "{:X}", uuid, 36, |c| c.is_uppercase() || c.is_digit(10) || c == '-' ); } }