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Put str tests in a nested tests module

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This commit is contained in:
Eryn Wells 2017-04-03 16:55:47 -04:00
parent 104b9b0864
commit 4a0586b1a5
1 changed files with 35 additions and 30 deletions
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65
src/lexer/str.rs
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@ -62,37 +62,42 @@ impl CharAt for str {
} }
} }
#[test] #[cfg(test)]
fn index_before_is_well_behaved_for_ascii() { mod tests {
let s = "abc"; use super::*;
// Sanity #[test]
assert_eq!(s.index_before(0), 0); fn index_before_is_well_behaved_for_ascii() {
assert_eq!(s.index_before(2), 1); let s = "abc";
// An index beyond the string bounds returns the index of the last character in the string. // Sanity
{ assert_eq!(s.index_before(0), 0);
let idx = s.index_before(4); assert_eq!(s.index_before(2), 1);
assert_eq!(idx, 2);
assert!(s.is_char_boundary(idx)); // An index beyond the string bounds returns the index of the last character in the string.
let last_char = &s[idx ..]; {
assert_eq!(last_char.len(), 1); let idx = s.index_before(4);
assert_eq!(last_char.chars().nth(0), Some('c')); assert_eq!(idx, 2);
} assert!(s.is_char_boundary(idx));
} let last_char = &s[idx ..];
assert_eq!(last_char.len(), 1);
#[test] assert_eq!(last_char.chars().nth(0), Some('c'));
fn index_after_is_well_behaved_for_ascii() { }
let s = "abc"; }
// Sanity #[test]
assert_eq!(s.index_after(0), 1); fn index_after_is_well_behaved_for_ascii() {
assert_eq!(s.index_after(2), 3); let s = "abc";
// An index beyond the string bounds returns the length of the string // Sanity
{ assert_eq!(s.index_after(0), 1);
let idx = s.index_after(4); assert_eq!(s.index_after(2), 3);
assert_eq!(idx, s.len());
assert!(s.is_char_boundary(idx)); // An index beyond the string bounds returns the length of the string
{
let idx = s.index_after(4);
assert_eq!(idx, s.len());
assert!(s.is_char_boundary(idx));
}
} }
} }