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Fix vec::flat_map_to_vec method

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This commit is contained in:
Erick Tryzelaar 2012-12-18 20:48:23 -08:00
parent 97ddf3c7bd
commit 938058b004
2 changed files with 139 additions and 14 deletions
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27
src/test/run-pass/iter-flat-map-to-vec.rs
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@ -8,23 +8,22 @@
// option. This file may not be copied, modified, or distributed
// except according to those terms.
// xfail-test -- flat_map_to_vec currently disable
fn repeat(x: &uint) -> ~[uint] { ~[x, x] }
fn repeat(x: &uint) -> ~[uint] { ~[*x, *x] }
fn incd_if_even(x: &uint) -> option<uint> {
if (x % 2u) == 0u {some(x + 1u)} else {none}
fn incd_if_even(x: &uint) -> Option<uint> {
if (*x % 2u) == 0u {Some(*x + 1u)} else {None}
}
fn main() {
assert ~[1u, 3u].flat_map_to_vec(repeat) == ~[1u, 1u, 3u, 3u];
assert ~[].flat_map_to_vec(repeat) == ~[];
assert none.flat_map_to_vec(repeat) == ~[];
assert some(1u).flat_map_to_vec(repeat) == ~[1u, 1u];
assert some(2u).flat_map_to_vec(repeat) == ~[2u, 2u];
assert (~[1u, 3u]).flat_map_to_vec(repeat) == ~[1u, 1u, 3u, 3u];
assert (~[]).flat_map_to_vec(repeat) == ~[];
assert None.flat_map_to_vec(repeat) == ~[];
assert Some(1u).flat_map_to_vec(repeat) == ~[1u, 1u];
assert Some(2u).flat_map_to_vec(repeat) == ~[2u, 2u];
assert ~[1u, 2u, 5u].flat_map_to_vec(incd_if_even) == ~[3u];
assert ~[].flat_map_to_vec(incd_if_even) == ~[];
assert none.flat_map_to_vec(incd_if_even) == ~[];
assert some(1u).flat_map_to_vec(incd_if_even) == ~[];
assert some(2u).flat_map_to_vec(incd_if_even) == ~[3u];
assert (~[1u, 2u, 5u]).flat_map_to_vec(incd_if_even) == ~[3u];
assert (~[]).flat_map_to_vec(incd_if_even) == ~[];
assert None.flat_map_to_vec(incd_if_even) == ~[];
assert Some(1u).flat_map_to_vec(incd_if_even) == ~[];
assert Some(2u).flat_map_to_vec(incd_if_even) == ~[3u];
}