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retired
A standard library for the Gleam programming language
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gen/test/gleam@option_test.erl
-module(gleam@option_test).
-compile(no_auto_import).
-export([is_some_test/0, is_none_test/0, to_result_test/0, from_result_test/0, unwrap_option_test/0]).
is_some_test() ->
gleam@should:be_true(gleam@option:is_some({some, 1})),
gleam@should:be_false(gleam@option:is_some(none)).
is_none_test() ->
gleam@should:be_false(gleam@option:is_none({some, 1})),
gleam@should:be_true(gleam@option:is_none(none)).
to_result_test() ->
gleam@should:equal(
gleam@option:to_result({some, 1}, <<"possible_error"/utf8>>),
{ok, 1}
),
gleam@should:equal(
gleam@option:to_result(none, <<"possible_error"/utf8>>),
{error, <<"possible_error"/utf8>>}
).
from_result_test() ->
gleam@should:equal(gleam@option:from_result({ok, 1}), {some, 1}),
gleam@should:equal(
gleam@option:from_result({error, <<"some_error"/utf8>>}),
none
).
unwrap_option_test() ->
gleam@should:equal(gleam@option:unwrap({some, 1}, 0), 1),
gleam@should:equal(gleam@option:unwrap(none, 0), 0).