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retired
A standard library for the Gleam programming language
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gen/test/gleam@bit_string_test.erl
-module(gleam@bit_string_test).
-compile(no_auto_import).
-export([length_test/0, append_test/0, part_test/0, u32_test/0, to_string_test/0]).
length_test() ->
gleam@should:equal(
gleam@bit_string:byte_size(
gleam@bit_string:from_string(<<"hello"/utf8>>)
),
5
),
gleam@should:equal(
gleam@bit_string:byte_size(gleam@bit_string:from_string(<<""/utf8>>)),
0
).
append_test() ->
gleam@should:equal(
gleam@bit_string:append(
gleam@bit_string:from_string(<<"Test"/utf8>>),
gleam@bit_string:from_string(<<" Me"/utf8>>)
),
gleam@bit_string:from_string(<<"Test Me"/utf8>>)
),
{ok, Zero_32bit} = gleam@bit_string:int_to_u32(0),
gleam@should:equal(
gleam@bit_string:append(
Zero_32bit,
gleam@bit_string:from_string(<<""/utf8>>)
),
Zero_32bit
).
part_test() ->
gleam@should:equal(
gleam@bit_string:part(
gleam@bit_string:from_string(<<"hello"/utf8>>),
0,
5
),
{ok, gleam@bit_string:from_string(<<"hello"/utf8>>)}
),
gleam@should:equal(
gleam@bit_string:part(
gleam@bit_string:from_string(<<"hello"/utf8>>),
0,
0
),
{ok, gleam@bit_string:from_string(<<""/utf8>>)}
),
gleam@should:equal(
gleam@bit_string:part(
gleam@bit_string:from_string(<<"hello"/utf8>>),
2,
2
),
{ok, gleam@bit_string:from_string(<<"ll"/utf8>>)}
),
gleam@should:equal(
gleam@bit_string:part(
gleam@bit_string:from_string(<<"hello"/utf8>>),
5,
-2
),
{ok, gleam@bit_string:from_string(<<"lo"/utf8>>)}
),
gleam@should:equal(
gleam@bit_string:part(gleam@bit_string:from_string(<<""/utf8>>), 0, 0),
{ok, gleam@bit_string:from_string(<<""/utf8>>)}
),
gleam@should:equal(
gleam@bit_string:part(
gleam@bit_string:from_string(<<"hello"/utf8>>),
6,
0
),
{error, nil}
),
gleam@should:equal(
gleam@bit_string:part(
gleam@bit_string:from_string(<<"hello"/utf8>>),
-1,
1
),
{error, nil}
),
gleam@should:equal(
gleam@bit_string:part(
gleam@bit_string:from_string(<<"hello"/utf8>>),
1,
6
),
{error, nil}
).
u32_test() ->
{ok, Bin} = gleam@bit_string:int_to_u32(0),
gleam@should:equal(4, gleam@bit_string:byte_size(Bin)),
gleam@should:equal({ok, 0}, gleam@bit_string:int_from_u32(Bin)),
{ok, Bin@1} = gleam@bit_string:int_to_u32(4294967295),
gleam@should:equal(4, gleam@bit_string:byte_size(Bin@1)),
gleam@should:equal({ok, 4294967295}, gleam@bit_string:int_from_u32(Bin@1)),
gleam@should:equal(
{error, nil},
gleam@bit_string:int_from_u32(gleam@bit_string:from_string(<<""/utf8>>))
),
gleam@should:equal(
{error, nil},
gleam@bit_string:int_from_u32(
gleam@bit_string:from_string(<<"12345"/utf8>>)
)
).
to_string_test() ->
gleam@should:equal(gleam@bit_string:to_string(<<>>), {ok, <<""/utf8>>}),
gleam@should:equal(
gleam@bit_string:to_string(<<""/utf8>>),
{ok, <<""/utf8>>}
),
gleam@should:equal(
gleam@bit_string:to_string(<<"Hello"/utf8>>),
{ok, <<"Hello"/utf8>>}
),
gleam@should:equal(
gleam@bit_string:to_string(<<"ø"/utf8>>),
{ok, <<"ø"/utf8>>}
),
gleam@should:equal(gleam@bit_string:to_string(<<65535:16>>), {error, nil}).