feat(tazjin/german-string): add Eq impl & corresponding proptests
Change-Id: I66a258fad5d4e249268b9d2743d46b30c5ac1dac Reviewed-on: https://cl.tvl.fyi/c/depot/+/12240 Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI Autosubmit: tazjin <tazjin@tvl.su>
This commit is contained in:
Vincent Ambo
clbot
parent
ab6a4815ff
commit
64a085cf52
3 changed files with 428 additions and 1 deletions
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||||
"proc-macro2",
|
||||
"quote",
|
||||
"syn",
|
||||
]
|
||||
|
|
|
|||
|
|
@ -3,4 +3,5 @@ name = "german-string"
|
|||
version = "0.1.0"
|
||||
edition = "2021"
|
||||
|
||||
[dependencies]
|
||||
[dev-dependencies]
|
||||
proptest = "1.5.0"
|
||||
|
|
|
|||
|
|
@ -117,6 +117,8 @@ impl PartialEq for GermanString {
|
|||
}
|
||||
}
|
||||
|
||||
impl Eq for GermanString {}
|
||||
|
||||
impl Debug for GermanString {
|
||||
fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), std::fmt::Error> {
|
||||
String::from_utf8_lossy(self.as_bytes()).fmt(f)
|
||||
|
|
@ -126,6 +128,18 @@ impl Debug for GermanString {
|
|||
#[cfg(test)]
|
||||
mod tests {
|
||||
use super::*;
|
||||
use proptest::prelude::*;
|
||||
|
||||
impl Arbitrary for GermanString {
|
||||
type Parameters = <String as Arbitrary>::Parameters;
|
||||
type Strategy = BoxedStrategy<Self>;
|
||||
|
||||
fn arbitrary_with(args: Self::Parameters) -> Self::Strategy {
|
||||
any_with::<String>(args)
|
||||
.prop_map(|s| GermanString::new_transient(s.as_bytes()))
|
||||
.boxed()
|
||||
}
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_empty_string() {
|
||||
|
|
@ -175,4 +189,24 @@ mod tests {
|
|||
"long string returns correct string"
|
||||
);
|
||||
}
|
||||
|
||||
// Test [`Eq`] implementation.
|
||||
proptest! {
|
||||
#[test]
|
||||
fn test_reflexivity(x: GermanString) {
|
||||
prop_assert!(x == x);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_symmetry(x: GermanString, y: GermanString) {
|
||||
prop_assert_eq!(x == y, y == x);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_transitivity(x: GermanString, y: GermanString, z: GermanString) {
|
||||
if x == y && y == z {
|
||||
assert!(x == z);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in a new issue