Packages
gleam_stdlib
0.13.0
1.0.3
1.0.2
1.0.1
1.0.0
0.71.0
0.70.0
0.69.0
0.68.1
0.68.0
0.67.1
0.67.0
0.65.0
0.64.0
0.63.2
0.63.1
0.63.0
0.62.1
0.62.0
0.61.0
0.60.0
0.59.0
0.58.0
0.57.0
0.56.0
0.55.0
0.54.0
0.53.0
0.52.0
0.51.0
0.50.0
0.49.0
0.48.0
0.47.0
0.46.0
0.45.0
0.44.0
0.43.0
0.42.0
0.41.0
0.40.0
0.39.0
0.38.0
0.37.0
0.36.0
0.35.1
0.35.0
0.34.0
0.33.1
0.33.0
0.32.1
0.32.0
0.31.0
0.30.2
0.30.1
0.30.0
0.29.2
0.29.1
0.29.0
0.28.2
0.28.1
0.28.0
0.27.0
0.26.1
0.26.0
0.25.0
0.24.0
0.23.0
0.22.3
0.22.2
0.22.1
0.22.0
0.21.0
0.20.0
0.19.3
0.19.2
0.19.1
0.19.0
0.18.1
0.18.0
0.18.0-rc1
0.17.1
0.17.0
0.16.0
0.15.0
0.14.0
0.13.0
0.12.0
0.11.0
0.10.1
0.10.0
0.9.0
0.8.0
0.7.0
0.6.0
0.5.0
0.4.0
0.4.0-rc1
0.3.1
0.3.0
0.2.0
retired
A standard library for the Gleam programming language
Current section
Files
Jump to
Current section
Files
gen/test/gleam@map_test.erl
-module(gleam@map_test).
-compile(no_auto_import).
-export([from_list_test/0, has_key_test/0, new_test/0, get_test/0, insert_test/0, map_values_test/0, keys_test/0, values_test/0, take_test/0, drop_test/0, merge_test/0, delete_test/0, update_test/0, fold_test/0]).
from_list_test() ->
gleam@should:equal(gleam@map:size(gleam@map:from_list([{4, 0}, {1, 0}])), 2),
gleam@should:equal(
gleam@map:from_list([{1, 0}, {1, 1}]),
gleam@map:from_list([{1, 1}])
).
has_key_test() ->
gleam@should:be_false(gleam@map:has_key(gleam@map:from_list([]), 1)),
gleam@should:be_true(gleam@map:has_key(gleam@map:from_list([{1, 0}]), 1)),
gleam@should:be_true(
gleam@map:has_key(gleam@map:from_list([{4, 0}, {1, 0}]), 1)
),
gleam@should:be_false(
gleam@map:has_key(gleam@map:from_list([{4, 0}, {1, 0}]), 0)
).
new_test() ->
gleam@should:equal(gleam@map:size(gleam@map:new()), 0),
gleam@should:equal(gleam@map:to_list(gleam@map:new()), []).
get_test() ->
Proplist = [{4, 0}, {1, 1}],
M = gleam@map:from_list(Proplist),
gleam@should:equal(gleam@map:get(M, 4), {ok, 0}),
gleam@should:equal(gleam@map:get(M, 1), {ok, 1}),
gleam@should:equal(gleam@map:get(M, 2), {error, nil}).
insert_test() ->
gleam@should:equal(
gleam@map:insert(
gleam@map:insert(
gleam@map:insert(gleam@map:new(), <<"a"/utf8>>, 0),
<<"b"/utf8>>,
1
),
<<"c"/utf8>>,
2
),
gleam@map:from_list(
[{<<"a"/utf8>>, 0}, {<<"b"/utf8>>, 1}, {<<"c"/utf8>>, 2}]
)
).
map_values_test() ->
gleam@should:equal(
gleam@map:map_values(
gleam@map:from_list([{1, 0}, {2, 1}, {3, 2}]),
fun(K, V) -> K + V end
),
gleam@map:from_list([{1, 1}, {2, 3}, {3, 5}])
).
keys_test() ->
gleam@should:equal(
gleam@map:keys(
gleam@map:from_list(
[{<<"a"/utf8>>, 0}, {<<"b"/utf8>>, 1}, {<<"c"/utf8>>, 2}]
)
),
[<<"a"/utf8>>, <<"b"/utf8>>, <<"c"/utf8>>]
).
values_test() ->
gleam@should:equal(
gleam@map:values(
gleam@map:from_list(
[{<<"a"/utf8>>, 0}, {<<"b"/utf8>>, 1}, {<<"c"/utf8>>, 2}]
)
),
[0, 1, 2]
).
take_test() ->
gleam@should:equal(
gleam@map:take(
gleam@map:from_list(
[{<<"a"/utf8>>, 0}, {<<"b"/utf8>>, 1}, {<<"c"/utf8>>, 2}]
),
[<<"a"/utf8>>, <<"b"/utf8>>, <<"d"/utf8>>]
),
gleam@map:from_list([{<<"a"/utf8>>, 0}, {<<"b"/utf8>>, 1}])
).
drop_test() ->
gleam@should:equal(
gleam@map:drop(
gleam@map:from_list(
[{<<"a"/utf8>>, 0}, {<<"b"/utf8>>, 1}, {<<"c"/utf8>>, 2}]
),
[<<"a"/utf8>>, <<"b"/utf8>>, <<"d"/utf8>>]
),
gleam@map:from_list([{<<"c"/utf8>>, 2}])
).
merge_test() ->
A = gleam@map:from_list(
[{<<"a"/utf8>>, 2}, {<<"c"/utf8>>, 4}, {<<"d"/utf8>>, 3}]
),
B = gleam@map:from_list(
[{<<"a"/utf8>>, 0}, {<<"b"/utf8>>, 1}, {<<"c"/utf8>>, 2}]
),
gleam@should:equal(
gleam@map:merge(A, B),
gleam@map:from_list(
[{<<"a"/utf8>>, 0},
{<<"b"/utf8>>, 1},
{<<"c"/utf8>>, 2},
{<<"d"/utf8>>, 3}]
)
),
gleam@should:equal(
gleam@map:merge(B, A),
gleam@map:from_list(
[{<<"a"/utf8>>, 2},
{<<"b"/utf8>>, 1},
{<<"c"/utf8>>, 4},
{<<"d"/utf8>>, 3}]
)
).
delete_test() ->
gleam@should:equal(
gleam@map:delete(
gleam@map:delete(
gleam@map:from_list(
[{<<"a"/utf8>>, 0}, {<<"b"/utf8>>, 1}, {<<"c"/utf8>>, 2}]
),
<<"a"/utf8>>
),
<<"d"/utf8>>
),
gleam@map:from_list([{<<"b"/utf8>>, 1}, {<<"c"/utf8>>, 2}])
).
update_test() ->
Dict = gleam@map:from_list(
[{<<"a"/utf8>>, 0}, {<<"b"/utf8>>, 1}, {<<"c"/utf8>>, 2}]
),
Inc_or_zero = fun(X) -> case X of
{ok, I} ->
I + 1;
{error, _} ->
0
end end,
gleam@should:equal(
gleam@map:update(Dict, <<"a"/utf8>>, Inc_or_zero),
gleam@map:from_list(
[{<<"a"/utf8>>, 1}, {<<"b"/utf8>>, 1}, {<<"c"/utf8>>, 2}]
)
),
gleam@should:equal(
gleam@map:update(Dict, <<"b"/utf8>>, Inc_or_zero),
gleam@map:from_list(
[{<<"a"/utf8>>, 0}, {<<"b"/utf8>>, 2}, {<<"c"/utf8>>, 2}]
)
),
gleam@should:equal(
gleam@map:update(Dict, <<"z"/utf8>>, Inc_or_zero),
gleam@map:from_list(
[{<<"a"/utf8>>, 0},
{<<"b"/utf8>>, 1},
{<<"c"/utf8>>, 2},
{<<"z"/utf8>>, 0}]
)
).
fold_test() ->
Dict = gleam@map:from_list(
[{<<"a"/utf8>>, 0},
{<<"b"/utf8>>, 1},
{<<"c"/utf8>>, 2},
{<<"d"/utf8>>, 3}]
),
Add = fun(_, V, Acc) -> V + Acc end,
gleam@should:equal(gleam@map:fold(Dict, 0, Add), 6),
Concat = fun(K, _, Acc@1) -> gleam@string:append(Acc@1, K) end,
gleam@should:equal(
gleam@map:fold(Dict, <<""/utf8>>, Concat),
<<"abcd"/utf8>>
),
gleam@should:equal(gleam@map:fold(gleam@map:from_list([]), 0, Add), 0).