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%% Copyright 2011, Filipe David Manana <fdmanana@apache.org>
%% Web: http://github.com/fdmanana/snappy-erlang-nif
%%
%% Licensed under the Apache License, Version 2.0 (the "License"); you may not
%% use this file except in compliance with the License. You may obtain a copy of
%% the License at
%%
%% http://www.apache.org/licenses/LICENSE-2.0
%%
%% Unless required by applicable law or agreed to in writing, software
%% distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
%% WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
%% License for the specific language governing permissions and limitations under
%% the License.
-module(snappy_tests).
-include_lib("eunit/include/eunit.hrl").
compression_test_() ->
{timeout, 60, [fun compression/0]}.
decompression_test_() ->
{timeout, 60, [fun decompression/0]}.
compression() ->
DataIoList = lists:duplicate(11, <<"words that go unspoken, deeds that go undone">>),
Data = iolist_to_binary(DataIoList),
Result = snappy:compress(Data),
?assertMatch({ok, _}, Result),
{ok, Compressed} = Result,
?assertEqual(true, byte_size(Compressed) < byte_size(Data)),
?assertEqual(true, snappy:is_valid(Compressed)),
?assertEqual(false, snappy:is_valid(Data)),
?assertEqual(false, snappy:is_valid(<<"foobar123">>)),
?assertEqual({ok, byte_size(Data)}, snappy:uncompressed_length(Compressed)),
Result2 = snappy:compress(DataIoList),
?assertMatch({ok, _}, Result2),
{ok, Compressed2} = Result2,
?assertEqual(byte_size(Compressed2), byte_size(Compressed)),
?assertEqual(true, snappy:is_valid(Compressed2)),
?assertEqual({ok, byte_size(Data)}, snappy:uncompressed_length(Compressed2)),
ok.
decompression() ->
DataIoList = lists:duplicate(11, <<"words that go unspoken, deeds that go undone">>),
Data = iolist_to_binary(DataIoList),
Result = snappy:compress(Data),
?assertMatch({ok, _}, Result),
{ok, Compressed} = Result,
?assertEqual({ok, Data}, snappy:decompress(Compressed)),
Result2 = snappy:compress(DataIoList),
?assertMatch({ok, _}, Result2),
{ok, Compressed2} = Result2,
?assertEqual({ok, Data}, snappy:decompress(Compressed2)),
BigData = <<"mVPZzfDzKNeZrh1QdkMEgh2U0Bv2i3+bLJaCqgNibXuMuwfjrqTuxPGupxjI",
"xEbuYR+u/KZvSDhoxnkpPbgJo7oiQv2ibDrrGZx7RDs3Nn7Ww51B7+zUL4tr",
"G+16TlJilJT47Z4cQn8EpWex2bMRFAoJ6AMJAodLGbiD78yUyIorRKVcCa+k",
"udzjsqYAoXzW/z8JCB6rbGGSbnLyqztR//ch5sRwSvYARlV+IamzBkDXFZxj",
"5TAwAl2ZcbCeMX0qgXX4EonVZxc=">>,
Result3 = snappy:compress(BigData),
?assertMatch({ok, _}, Result3),
{ok, Compressed3} = Result3,
?assertEqual({ok, BigData}, snappy:decompress(Compressed3)),
ok.
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