mirror of
https://github.com/kidfromjupiter/nearby.git
synced 2026-09-14 22:56:12 -04:00
90 lines
3.1 KiB
C++
90 lines
3.1 KiB
C++
// Copyright 2025 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "internal/encoding/base85.h"
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#include <string>
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#include "gtest/gtest.h"
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#include "absl/random/random.h"
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namespace nearby {
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namespace encoding {
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namespace {
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TEST(Base85Test, EncodeAndDecodeString) {
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EXPECT_EQ(Base85Encode(""), "");
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EXPECT_EQ(Base85Decode(Base85Encode("")), "");
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EXPECT_EQ(Base85Encode("b"), "@K");
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EXPECT_EQ(Base85Decode(Base85Encode("b")), "b");
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EXPECT_EQ(Base85Encode("ab"), "@:B");
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EXPECT_EQ(Base85Decode(Base85Encode("ab")), "ab");
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EXPECT_EQ(Base85Encode("xyz"), "G^4T");
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EXPECT_EQ(Base85Decode(Base85Encode("xyz")), "xyz");
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EXPECT_EQ(Base85Encode("true"), "FE2M8");
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EXPECT_EQ(Base85Decode(Base85Encode("true")), "true");
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EXPECT_EQ(Base85Encode("ab", /*padding=*/true), "@:B3:");
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std::string expected_decoded_string("ab\x00\x00", 4);
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EXPECT_EQ(Base85Decode(Base85Encode("ab", /*padding=*/true)),
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expected_decoded_string);
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EXPECT_EQ(Base85Encode("hello,world"), "BOu!rD_-*NEbo7");
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EXPECT_EQ(Base85Decode("BOu!rD_-*NEbo7"), "hello,world");
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EXPECT_EQ(Base85Encode("abcdefgh"), "@:E_WAS,Rg");
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EXPECT_EQ(Base85Decode(Base85Encode("abcdefgh")), "abcdefgh");
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}
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TEST(Base85Test, EncodeAndDecodeBytes) {
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std::string data;
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data.push_back(0x00);
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EXPECT_EQ(Base85Encode(data), "z");
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std::string expected_data("\x00\x00\x00\x00", 4);
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EXPECT_EQ(Base85Decode(Base85Encode(data)), expected_data);
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data = std::string("\x00\x01", 2);
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EXPECT_EQ(Base85Encode(data), "!!*");
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data = std::string("\x00\x01\xff", 3);
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EXPECT_EQ(Base85Encode(data), "!!3*");
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EXPECT_EQ(Base85Decode(Base85Encode(data)), data);
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}
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TEST(Base85Test, DecodeStringWithZero) {
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std::string data("\x00\x00\x00\x00\xf8\xf9\xf1\x08\x00\x00\x00\x00\xf9", 13);
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EXPECT_EQ(Base85Encode(data), "zq\"aFczq#");
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EXPECT_EQ(Base85Decode(Base85Encode(data)), data);
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data = std::string("\x00\x00\x00\x00\xf8\xf9\xf1\x08\x00", 9);
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EXPECT_EQ(Base85Encode(data), "zq\"aFcz");
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data = std::string("\x00\x00\x00\x00\xf8\xf9\xf1\x08\x00\x00", 10);
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EXPECT_EQ(Base85Encode(data), "zq\"aFcz");
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data = std::string("\x00\x00\x00\x00\xf8\xf9\xf1\x08\x00\x00\x00", 11);
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EXPECT_EQ(Base85Encode(data), "zq\"aFcz");
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}
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TEST(Base85Test, EncodeAndDecodeRandomString) {
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absl::BitGen bitgen;
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std::string data;
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for (int i = 0; i < 1000; ++i) {
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data.push_back(absl::Uniform(bitgen, 0, 256));
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}
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EXPECT_EQ(Base85Decode(Base85Encode(data)), data);
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}
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TEST(Base85Test, InvalideEncodedString) {
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EXPECT_FALSE(Base85Decode("abhjki"));
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EXPECT_FALSE(Base85Decode("abz"));
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EXPECT_FALSE(Base85Decode("u`qL["));
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}
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} // namespace
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} // namespace encoding
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} // namespace nearby
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