TEST(cpdf_syntax_parser, ReadHexString) { { // Empty string. uint8_t data[] = ""; ScopedFileStream stream(FX_CreateMemoryStream(data, 0, FALSE)); CPDF_SyntaxParser parser; parser.InitParser(stream.get(), 0); EXPECT_EQ("", parser.ReadHexString()); EXPECT_EQ(0, parser.SavePos()); } { // Blank string. uint8_t data[] = " "; ScopedFileStream stream(FX_CreateMemoryStream(data, 2, FALSE)); CPDF_SyntaxParser parser; parser.InitParser(stream.get(), 0); EXPECT_EQ("", parser.ReadHexString()); EXPECT_EQ(2, parser.SavePos()); } { // Skips unknown characters. uint8_t data[] = "z12b"; ScopedFileStream stream(FX_CreateMemoryStream(data, 4, FALSE)); CPDF_SyntaxParser parser; parser.InitParser(stream.get(), 0); EXPECT_EQ("\x12\xb0", parser.ReadHexString()); EXPECT_EQ(4, parser.SavePos()); } { // Skips unknown characters. uint8_t data[] = "*<&*#$^&@1"; ScopedFileStream stream(FX_CreateMemoryStream(data, 10, FALSE)); CPDF_SyntaxParser parser; parser.InitParser(stream.get(), 0); EXPECT_EQ("\x10", parser.ReadHexString()); EXPECT_EQ(10, parser.SavePos()); } { // Skips unknown characters. uint8_t data[] = "\x80zab"; ScopedFileStream stream(FX_CreateMemoryStream(data, 4, FALSE)); CPDF_SyntaxParser parser; parser.InitParser(stream.get(), 0); EXPECT_EQ("\xab", parser.ReadHexString()); EXPECT_EQ(4, parser.SavePos()); } { // Skips unknown characters. uint8_t data[] = "\xffzab"; ScopedFileStream stream(FX_CreateMemoryStream(data, 4, FALSE)); CPDF_SyntaxParser parser; parser.InitParser(stream.get(), 0); EXPECT_EQ("\xab", parser.ReadHexString()); EXPECT_EQ(4, parser.SavePos()); } { // Regular conversion. uint8_t data[] = "1A2b>abcd"; ScopedFileStream stream(FX_CreateMemoryStream(data, 9, FALSE)); CPDF_SyntaxParser parser; parser.InitParser(stream.get(), 0); EXPECT_EQ("\x1a\x2b", parser.ReadHexString()); EXPECT_EQ(5, parser.SavePos()); } { // Position out of bounds. uint8_t data[] = "12ab>"; ScopedFileStream stream(FX_CreateMemoryStream(data, 5, FALSE)); CPDF_SyntaxParser parser; parser.InitParser(stream.get(), 0); parser.RestorePos(5); EXPECT_EQ("", parser.ReadHexString()); parser.RestorePos(6); EXPECT_EQ("", parser.ReadHexString()); parser.RestorePos(-1); EXPECT_EQ("", parser.ReadHexString()); parser.RestorePos(std::numeric_limits<FX_FILESIZE>::max()); EXPECT_EQ("", parser.ReadHexString()); // Check string still parses when set to 0. parser.RestorePos(0); EXPECT_EQ("\x12\xab", parser.ReadHexString()); } { // Missing ending >. uint8_t data[] = "1A2b"; ScopedFileStream stream(FX_CreateMemoryStream(data, 4, FALSE)); CPDF_SyntaxParser parser; parser.InitParser(stream.get(), 0); EXPECT_EQ("\x1a\x2b", parser.ReadHexString()); EXPECT_EQ(4, parser.SavePos()); } { // Missing ending >. uint8_t data[] = "12abz"; ScopedFileStream stream(FX_CreateMemoryStream(data, 5, FALSE)); CPDF_SyntaxParser parser; parser.InitParser(stream.get(), 0); EXPECT_EQ("\x12\xab", parser.ReadHexString()); EXPECT_EQ(5, parser.SavePos()); } { // Uneven number of bytes. uint8_t data[] = "1A2>asdf"; ScopedFileStream stream(FX_CreateMemoryStream(data, 8, FALSE)); CPDF_SyntaxParser parser; parser.InitParser(stream.get(), 0); EXPECT_EQ("\x1a\x20", parser.ReadHexString()); EXPECT_EQ(4, parser.SavePos()); } { // Uneven number of bytes. uint8_t data[] = "1A2zasdf"; ScopedFileStream stream(FX_CreateMemoryStream(data, 8, FALSE)); CPDF_SyntaxParser parser; parser.InitParser(stream.get(), 0); EXPECT_EQ("\x1a\x2a\xdf", parser.ReadHexString()); EXPECT_EQ(8, parser.SavePos()); } { // Just ending character. uint8_t data[] = ">"; ScopedFileStream stream(FX_CreateMemoryStream(data, 1, FALSE)); CPDF_SyntaxParser parser; parser.InitParser(stream.get(), 0); EXPECT_EQ("", parser.ReadHexString()); EXPECT_EQ(1, parser.SavePos()); } }