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libstd: add smoke test for insert methods in MultiArrayList

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This commit is contained in:
Jakub Konka 2022-01-17 12:26:48 +01:00
parent 144e36770e
commit 90343d1868
1 changed files with 19 additions and 0 deletions
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19
lib/std/multi_array_list.zig
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@ -602,3 +602,22 @@ test "ensure capacity on empty list" {
try testing.expectEqualSlices(u32, &[_]u32{ 9, 11 }, list.items(.a));
try testing.expectEqualSlices(u8, &[_]u8{ 10, 12 }, list.items(.b));
}
test "insert elements" {
const ally = testing.allocator;
const Foo = struct {
a: u8,
b: u32,
};
var list = MultiArrayList(Foo){};
defer list.deinit(ally);
try list.insert(ally, 0, .{ .a = 1, .b = 2 });
try list.ensureUnusedCapacity(ally, 1);
list.insertAssumeCapacity(1, .{ .a = 2, .b = 3 });
try testing.expectEqualSlices(u8, &[_]u8{ 1, 2 }, list.items(.a));
try testing.expectEqualSlices(u32, &[_]u32{ 2, 3 }, list.items(.b));
}