55 lines
1.2 KiB
Rust
55 lines
1.2 KiB
Rust
//! Test the following expectations:
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//! - midpoint(a, b) == (a + b) / 2
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//! - midpoint(a, b) == midpoint(b, a)
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//! - midpoint(-a, -b) == -midpoint(a, b)
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#[test]
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#[cfg(not(miri))]
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fn midpoint_obvious_impl_i8() {
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for a in i8::MIN..=i8::MAX {
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for b in i8::MIN..=i8::MAX {
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assert_eq!(i8::midpoint(a, b), ((a as i16 + b as i16) / 2) as i8);
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}
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}
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}
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#[test]
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#[cfg(not(miri))]
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fn midpoint_obvious_impl_u8() {
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for a in u8::MIN..=u8::MAX {
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for b in u8::MIN..=u8::MAX {
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assert_eq!(u8::midpoint(a, b), ((a as u16 + b as u16) / 2) as u8);
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}
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}
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}
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#[test]
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#[cfg(not(miri))]
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fn midpoint_order_expectation_i8() {
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for a in i8::MIN..=i8::MAX {
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for b in i8::MIN..=i8::MAX {
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assert_eq!(i8::midpoint(a, b), i8::midpoint(b, a));
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}
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}
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}
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#[test]
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#[cfg(not(miri))]
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fn midpoint_order_expectation_u8() {
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for a in u8::MIN..=u8::MAX {
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for b in u8::MIN..=u8::MAX {
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assert_eq!(u8::midpoint(a, b), u8::midpoint(b, a));
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}
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}
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}
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#[test]
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#[cfg(not(miri))]
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fn midpoint_negative_expectation() {
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for a in 0..=i8::MAX {
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for b in 0..=i8::MAX {
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assert_eq!(i8::midpoint(-a, -b), -i8::midpoint(a, b));
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}
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}
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}
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