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Miri tests: skip parts of test_char_range #72812

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Merged
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Jun 1, 2020
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Miri tests: skip parts of test_char_range #72812

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7 changes: 5 additions & 2 deletions src/libcore/tests/iter.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -1959,8 +1959,11 @@ fn test_range() {
#[test]
fn test_char_range() {
use std::char;
assert!(('\0'..=char::MAX).eq((0..=char::MAX as u32).filter_map(char::from_u32)));
assert!(('\0'..=char::MAX).rev().eq((0..=char::MAX as u32).filter_map(char::from_u32).rev()));
// Miri is too slow
let from = if cfg!(miri) { char::from_u32(0xD800 - 10).unwrap() } else { '\0' };
let to = if cfg!(miri) { char::from_u32(0xDFFF + 10).unwrap() } else { char::MAX };
assert!((from..=to).eq((from as u32..=to as u32).filter_map(char::from_u32)));
assert!((from..=to).rev().eq((from as u32..=to as u32).filter_map(char::from_u32).rev()));

assert_eq!(('\u{D7FF}'..='\u{E000}').count(), 2);
assert_eq!(('\u{D7FF}'..='\u{E000}').size_hint(), (2, Some(2)));
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