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Diffstat (limited to '')
-rw-r--r-- | library/alloc/tests/const_fns.rs | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/library/alloc/tests/const_fns.rs b/library/alloc/tests/const_fns.rs new file mode 100644 index 000000000..49b837bec --- /dev/null +++ b/library/alloc/tests/const_fns.rs @@ -0,0 +1,35 @@ +// Test const functions in the library + +pub const MY_VEC: Vec<usize> = Vec::new(); +pub const MY_VEC2: Vec<usize> = Default::default(); + +pub const MY_STRING: String = String::new(); +pub const MY_STRING2: String = Default::default(); + +pub const MY_BOXED_SLICE: Box<[usize]> = Default::default(); +pub const MY_BOXED_STR: Box<str> = Default::default(); + +use std::collections::{BTreeMap, BTreeSet}; + +pub const MY_BTREEMAP: BTreeMap<usize, usize> = BTreeMap::new(); +pub const MAP: &'static BTreeMap<usize, usize> = &MY_BTREEMAP; +pub const MAP_LEN: usize = MAP.len(); +pub const MAP_IS_EMPTY: bool = MAP.is_empty(); + +pub const MY_BTREESET: BTreeSet<usize> = BTreeSet::new(); +pub const SET: &'static BTreeSet<usize> = &MY_BTREESET; +pub const SET_LEN: usize = SET.len(); +pub const SET_IS_EMPTY: bool = SET.is_empty(); + +#[test] +fn test_const() { + assert_eq!(MY_VEC, MY_VEC2); + assert_eq!(MY_STRING, MY_STRING2); + + assert_eq!(MY_VEC, *MY_BOXED_SLICE); + assert_eq!(MY_STRING, *MY_BOXED_STR); + + assert_eq!(MAP_LEN, 0); + assert_eq!(SET_LEN, 0); + assert!(MAP_IS_EMPTY && SET_IS_EMPTY); +} |