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109 lines
3.4 KiB
C++
109 lines
3.4 KiB
C++
// Copyright 2024 Dolphin Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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#include <algorithm>
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#include <gtest/gtest.h>
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#include "Common/SettingsHandler.h"
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namespace
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{
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// The encrypted bytes corresponding to the following settings, in order:
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// "key" = "val"
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Common::SettingsBuffer BUFFER_A{0x91, 0x91, 0x90, 0xEE, 0xD1, 0x2F, 0xF0, 0x34, 0x79};
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// The encrypted bytes corresponding to the following settings, in order:
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// "key1" = "val1"
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// "key2" = "val2"
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// "foo" = "bar"
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Common::SettingsBuffer BUFFER_B{0x91, 0x91, 0x90, 0xE2, 0x9A, 0x38, 0xFD, 0x55, 0x42, 0xEA, 0xC4,
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0xF6, 0x5E, 0xF, 0xDF, 0xE7, 0xC3, 0x0A, 0xBB, 0x9C, 0x50, 0xB1,
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0x10, 0x82, 0xB4, 0x8A, 0x0D, 0xBE, 0xCD, 0x72, 0xF4};
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// The encrypted bytes corresponding to the following setting:
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// "\xFA" = "a"
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//
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// This setting triggers the edge case fixed in PR #8704: the key's first and only byte matches the
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// first byte of the initial encryption key, resulting in a null encoded byte on the first attempt
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// to encode the line.
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Common::SettingsBuffer BUFFER_C{0xF0, 0x0E, 0xD4, 0xB2, 0xAA, 0x44};
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// The encrypted bytes corresponding to the following setting:
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// "\xFA\xE9" = "a"
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//
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// This setting triggers the edge case fixed in PR #8704 twice:
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//
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// 1. The key's first byte matches the first byte of the initial encryption key, resulting in a null
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// encoded byte on the first attempt to encode the line.
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//
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// 2. The key's second byte matches the first byte of the encryption key after two
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// rotations, resulting in a null encoded byte on the second attempt to encode the line (with a
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// single LF inserted before the line).
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Common::SettingsBuffer BUFFER_D{0xF0, 0xFE, 0x13, 0x3A, 0x9A, 0x2F, 0x91, 0x33};
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} // namespace
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TEST(SettingsWriterTest, EncryptSingleSetting)
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{
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Common::SettingsWriter writer;
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writer.AddSetting("key", "val");
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Common::SettingsBuffer buffer = writer.GetBytes();
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EXPECT_TRUE(std::ranges::equal(buffer, BUFFER_A));
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}
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TEST(SettingsReaderTest, DecryptSingleSetting)
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{
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const Common::SettingsReader reader(BUFFER_A);
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EXPECT_EQ(reader.GetValue("key"), "val");
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}
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TEST(SettingsWriterTest, EncryptMultipleSettings)
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{
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Common::SettingsWriter writer;
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writer.AddSetting("key1", "val1");
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writer.AddSetting("key2", "val2");
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writer.AddSetting("foo", "bar");
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Common::SettingsBuffer buffer = writer.GetBytes();
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EXPECT_TRUE(std::ranges::equal(buffer, BUFFER_B));
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}
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TEST(SettingsReaderTest, DecryptMultipleSettings)
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{
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const Common::SettingsReader reader(BUFFER_B);
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EXPECT_EQ(reader.GetValue("key1"), "val1");
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EXPECT_EQ(reader.GetValue("key2"), "val2");
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EXPECT_EQ(reader.GetValue("foo"), "bar");
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}
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TEST(SettingsWriterTest, EncryptAddsLFOnNullChar)
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{
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Common::SettingsWriter writer;
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writer.AddSetting("\xFA", "a");
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Common::SettingsBuffer buffer = writer.GetBytes();
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EXPECT_TRUE(std::ranges::equal(buffer, BUFFER_C));
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}
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TEST(SettingsWriterTest, EncryptAddsLFOnNullCharTwice)
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{
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Common::SettingsWriter writer;
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writer.AddSetting("\xFA\xE9", "a");
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Common::SettingsBuffer buffer = writer.GetBytes();
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EXPECT_TRUE(std::ranges::equal(buffer, BUFFER_D));
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}
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TEST(SettingsReaderTest, DecryptSingleAddedLF)
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{
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const Common::SettingsReader reader(BUFFER_C);
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EXPECT_EQ(reader.GetValue("\xFA"), "a");
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}
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TEST(SettingsReaderTest, DecryptTwoAddedLFs)
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{
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const Common::SettingsReader reader(BUFFER_D);
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EXPECT_EQ(reader.GetValue("\xFA\xE9"), "a");
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}
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