60 lines
1.3 KiB
Rust
60 lines
1.3 KiB
Rust
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use std;
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import std::list;
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import std::list::car;
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import std::list::cdr;
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import std::list::from_vec;
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import std::option;
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fn test_from_vec() {
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auto l = from_vec([0, 1, 2]);
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assert (car(l) == 0);
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assert (car(cdr(l)) == 1);
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assert (car(cdr(cdr(l))) == 2);
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}
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fn test_foldl() {
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auto l = from_vec([0, 1, 2, 3, 4]);
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fn add(&int a, &uint b) -> uint { ret (a as uint) + b; }
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auto rs = list::foldl(l, 0u, add);
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assert (rs == 10u);
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}
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fn test_find_success() {
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auto l = from_vec([0, 1, 2]);
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fn match(&int i) -> option::t[int] {
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ret if (i == 2) { option::some(i) } else { option::none[int] };
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}
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auto rs = list::find(l, match);
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assert (rs == option::some(2));
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}
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fn test_find_fail() {
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auto l = from_vec([0, 1, 2]);
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fn match(&int i) -> option::t[int] { ret option::none[int]; }
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auto rs = list::find(l, match);
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assert (rs == option::none[int]);
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}
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fn test_has() {
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auto l = from_vec([5, 8, 6]);
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auto empty = list::nil[int];
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assert (list::has(l, 5));
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assert (!list::has(l, 7));
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assert (list::has(l, 8));
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assert (!list::has(empty, 5));
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}
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fn test_length() {
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auto l = from_vec([0, 1, 2]);
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assert (list::length(l) == 3u);
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}
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fn main() {
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test_from_vec();
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test_foldl();
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test_find_success();
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test_find_fail();
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test_length();
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test_has();
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} |