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retired
A standard library for the Gleam programming language
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gen/test/gleam@os_test.erl
-module(gleam@os_test).
-compile(no_auto_import).
-export([env_test/0, unicode_test/0, system_time_test/0, erlang_timestamp_test/0]).
-spec env_test() -> gleam@should:expectation().
env_test() ->
gleam@os:insert_env(<<"GLEAM_TEST"/utf8>>, <<"hello"/utf8>>),
gleam@should:equal(
gleam@map:get(gleam@os:get_env(), <<"GLEAM_TEST"/utf8>>),
{ok, <<"hello"/utf8>>}
),
gleam@os:delete_env(<<"GLEAM_TEST"/utf8>>),
gleam@should:equal(
gleam@map:get(gleam@os:get_env(), <<"GLEAM_TEST"/utf8>>),
{error, nil}
).
-spec unicode_test() -> gleam@should:expectation().
unicode_test() ->
gleam@os:insert_env(
<<"GLEAM_UNICODE_TEST"/utf8>>,
<<"Iñtërnâtiônà£ißætiøn☃💩"/utf8>>
),
gleam@should:equal(
gleam@map:get(gleam@os:get_env(), <<"GLEAM_UNICODE_TEST"/utf8>>),
{ok, <<"Iñtërnâtiônà£ißætiøn☃💩"/utf8>>}
).
-spec system_time_test() -> gleam@should:expectation().
system_time_test() ->
June_12_2020 = 1591966971,
gleam@should:equal(gleam@os:system_time(second) > June_12_2020, true),
gleam@should:equal(
gleam@os:system_time(second)
< (June_12_2020
* 1000),
true
),
gleam@should:equal(
gleam@os:system_time(millisecond)
> (June_12_2020
* 1000),
true
),
gleam@should:equal(
gleam@os:system_time(millisecond)
< (June_12_2020
* 1000000),
true
).
-spec erlang_timestamp_test() -> gleam@should:expectation().
erlang_timestamp_test() ->
June_12_2020 = 1591966971000000,
{Mega_seconds, Seconds, Micro_seconds} = gleam@os:erlang_timestamp(),
Stamp_as_micro = (((Mega_seconds * 1000000) + Seconds) * 1000000) + Micro_seconds,
gleam@should:be_true(Stamp_as_micro > June_12_2020).