pinapod 0.4.2

Zero-copy pod types with derive macros. Alignment-1 representations for zero-overhead data access.
Documentation 
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#![allow(
	unused_qualifications,
	missing_docs,
	reason = "upstream layout assertions intentionally spell out trait paths and these test \
	          fixtures are not a published surface"
)]

use pinapod::PinaPod;

#[derive(PinaPod, Debug, PartialEq)]
#[repr(u8)]
enum Status {
	Active = 0,
	Paused = 1,
	Closed = 2,
}

#[test]
fn enum_size() {
	assert_eq!(Status::SIZE, 1);
}

#[test]
fn enum_from_bytes_valid() {
	let buf = [1u8];
	let zc = Status::read_exact(&buf).unwrap();
	assert_eq!(zc.get(), 1u8);
}

#[test]
fn enum_validate_rejects_invalid() {
	let buf = [5u8];
	assert!(Status::read_exact(&buf).is_err());
}

#[test]
fn enum_from_into() {
	let pod: u8 = Status::Paused.into();
	assert_eq!(pod, 1u8);
}

#[derive(PinaPod, Debug, PartialEq)]
#[repr(u16)]
enum LargeEnum {
	A = 0,
	B = 256,
	C = 1000,
}

#[test]
fn enum_u16_size() {
	assert_eq!(LargeEnum::SIZE, 2);
}

#[test]
fn enum_u16_from_bytes() {
	let buf = 256u16.to_le_bytes();
	let zc = LargeEnum::read_exact(&buf).unwrap();
	assert_eq!(zc.get(), 256u16);
}

#[test]
fn enum_u16_rejects_invalid() {
	let buf = 999u16.to_le_bytes();
	assert!(LargeEnum::read_exact(&buf).is_err());
}

#[test]
fn enum_zc_is() {
	let buf = [1u8]; // Paused
	let zc = Status::read_exact(&buf).unwrap();
	assert!(zc.is(Status::Paused));
	assert!(!zc.is(Status::Active));
}

#[test]
fn enum_zc_display() {
	let buf = [0u8]; // Active
	let zc = Status::read_exact(&buf).unwrap();
	let s = format!("{zc}");
	assert_eq!(s, "Active");
}

#[test]
fn enum_zc_debug() {
	let buf = [2u8]; // Closed
	let zc = Status::read_exact(&buf).unwrap();
	let s = format!("{zc:?}");
	assert!(s.contains("Closed"));
}

#[test]
fn enum_zc_eq_repr() {
	let buf = [1u8];
	let zc = Status::read_exact(&buf).unwrap();
	assert_eq!(*zc, 1u8); // PartialEq with repr type
}

#[test]
fn error_invalid_discriminant_variant() {
	let buf = [99u8]; // bad discriminant
	let err = Status::validate_exact(&buf);
	assert_eq!(err, Err(pinapod::PinaPodError::InvalidDiscriminant));
}

#[test]
fn enum_zc_is_zc_elem() {
	fn assert_zc_elem<T: pinapod::ZcElem>() {}
	assert_zc_elem::<StatusZc>();
	assert_zc_elem::<LargeEnumZc>();
}