OXYGENHUB
◆ main openmsx / src / unittest / HexDump_test.cc
2.8 KiB · C++ · last changed chore(): initial commit 1 month ago source blame history raw
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#include "catch.hpp"
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#include "HexDump.hh"
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#include <algorithm>
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#include <bit>
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static void test_decode(const std::string& encoded, const std::string& decoded)
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{
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	auto buf = HexDump::decode(encoded);
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	REQUIRE(buf.size() == decoded.size());
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	CHECK(std::ranges::equal(std::span{buf}, decoded));
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}
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static void test(const std::string& decoded, const std::string& encoded)
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{
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	CHECK(HexDump::encode(std::span{std::bit_cast<const uint8_t*>(decoded.data()),
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	                                decoded.size()})
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	      == encoded);
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	test_decode(encoded, decoded);
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}
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TEST_CASE("HexDump")
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{
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	test("", "");
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	test("a", "61");
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	test("ab", "61 62");
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	test("abc", "61 62 63");
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	test("0123456789", "30 31 32 33 34 35 36 37 38 39");
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	test("abcdefghijklmnopqrstuvwxyz",
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	     "61 62 63 64 65 66 67 68 69 6A 6B 6C 6D 6E 6F 70\n"
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	     "71 72 73 74 75 76 77 78 79 7A");
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	test("0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz",
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	     "30 31 32 33 34 35 36 37 38 39 41 42 43 44 45 46\n"
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	     "47 48 49 4A 4B 4C 4D 4E 4F 50 51 52 53 54 55 56\n"
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	     "57 58 59 5A 61 62 63 64 65 66 67 68 69 6A 6B 6C\n"
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	     "6D 6E 6F 70 71 72 73 74 75 76 77 78 79 7A");
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	test("111111111111111111111111111111111111111111111111111111111111111111111111111111"
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	     "111111111111111111111111111111111111111111111111111111111111111111111111111111"
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	     "111111111111111111111111111111111111111111111111111111111111111111111111111111"
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	     "111111111111111111111111111111111111111111111",
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	     "31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31\n"
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	     "31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31\n"
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	     "31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31\n"
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	     "31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31\n"
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	     "31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31\n"
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	     "31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31\n"
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	     "31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31\n"
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	     "31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31\n"
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	     "31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31\n"
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	     "31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31\n"
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	     "31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31\n"
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	     "31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31\n"
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	     "31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31\n"
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	     "31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31\n"
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	     "31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31\n"
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	     "31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31\n"
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	     "31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31\n"
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	     "31 31 31 31 31 31 31");
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	// Decode-only:
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	// - extra newlines don't matter
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	test_decode("30 31\n32\n33 34", "01234");
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	// - no spaces in between is fine as well
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	test_decode("3031323334", "01234");
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	// - any non [0-9][a-f][A-F] character is ignored
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	test_decode("30|31G32g33+34", "01234");
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	// - lower-case [a-f] is allowed
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	test_decode("4A+4b4c\n4d", "JKLM");
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}