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feat(str): add SStrHash

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Adam Heinermann 2025-08-31 22:14:28 -07:00 • committed by fallenoak
parent a2959efef5
commit 0f453bd413
3 changed files with 150 additions and 0 deletions
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101
test/String.cpp
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@ -247,6 +247,107 @@ TEST_CASE("SStrDupA", "[string]") {
}
}
struct TestHash {
const char *str;
uint32_t hash;
};
TEST_CASE("SStrHash", "[string]") {
SECTION("hashes strings with case insensitivity") {
// Results obtained by directly calling Starcraft 1.17's SStrHash
auto testcase = GENERATE(
TestHash{ "bloop bloop", 0x3EB42E62 },
TestHash{ "BLOOP bloop", 0x3EB42E62 },
TestHash{ "Objects\\CameraHelper\\CameraHelper.mdx", 0xE99A51F5 },
TestHash{ "Objects/CameraHelper/CameraHelper.mdx", 0xE99A51F5 },
TestHash{ "abcdefghijklmnopqrstuvwxyz", 0x29564240 },
TestHash{ "ABCDEFGHIJKLMNOPQRSTUVWXYZ", 0x29564240 },
TestHash{ "123456789~!@#$%^&*()_+`-=[]{}|;':\",.<>?", 0x54E31141 },
TestHash{ "/", 0x57EC56C7 },
TestHash{ "\\", 0x57EC56C7 },
TestHash{ "\r\n\t ", 0x89351E43 }
);
auto hash = SStrHash(testcase.str);
CHECK(hash == testcase.hash);
}
SECTION("hashes strings with case sensitivity") {
// Results obtained by directly calling Starcraft 1.17's SStrHash
auto testcase = GENERATE(
TestHash{ "bloop bloop", 0x4E7D519E },
TestHash{ "BLOOP bloop", 0x307459CC },
TestHash{ "Objects\\CameraHelper\\CameraHelper.mdx", 0x5202C0C5 },
TestHash{ "Objects/CameraHelper/CameraHelper.mdx", 0x58BD40A9 },
TestHash{ "abcdefghijklmnopqrstuvwxyz", 0xEF065306 },
TestHash{ "ABCDEFGHIJKLMNOPQRSTUVWXYZ", 0x29564240 },
TestHash{ "123456789~!@#$%^&*()_+`-=[]{}|;':\",.<>?", 0x54E31141 },
TestHash{ "/", 0x93912757 },
TestHash{ "\\", 0x57EC56C7 },
TestHash{ "\r\n\t ", 0x89351E43 }
);
auto hash = SStrHash(testcase.str, SSTR_HASH_CASESENSITIVE);
CHECK(hash == testcase.hash);
}
SECTION("hashes strings with fixed seeds case insensitive") {
// Results obtained by directly calling Starcraft 1.17's SStrHash
auto testcase = GENERATE(
TestHash{ "bloop bloop", 0xDD85B006 },
TestHash{ "BLOOP bloop", 0xDD85B006 },
TestHash{ "Objects\\CameraHelper\\CameraHelper.mdx", 0x0EA7F863 },
TestHash{ "Objects/CameraHelper/CameraHelper.mdx", 0x0EA7F863 },
TestHash{ "abcdefghijklmnopqrstuvwxyz", 0x4BAB46BC },
TestHash{ "ABCDEFGHIJKLMNOPQRSTUVWXYZ", 0x4BAB46BC },
TestHash{ "123456789~!@#$%^&*()_+`-=[]{}|;':\",.<>?", 0x2A52D7D3 },
TestHash{ "/", 0xD7DED775 },
TestHash{ "\\", 0xD7DED775 },
TestHash{ "\r\n\t ", 0xC0038449 }
);
auto hash = SStrHash(testcase.str, 0, 123);
CHECK(hash == testcase.hash);
}
SECTION("hashes strings with fixed seeds case sensitive") {
// Results obtained by directly calling Starcraft 1.17's SStrHash
auto testcase = GENERATE(
TestHash{ "bloop bloop", 0x96187662 },
TestHash{ "BLOOP bloop", 0xC421E888 },
TestHash{ "Objects\\CameraHelper\\CameraHelper.mdx", 0x625F6763 },
TestHash{ "Objects/CameraHelper/CameraHelper.mdx", 0xC2A7DFE7 },
TestHash{ "abcdefghijklmnopqrstuvwxyz", 0x4018029E },
TestHash{ "ABCDEFGHIJKLMNOPQRSTUVWXYZ", 0x4BAB46BC },
TestHash{ "123456789~!@#$%^&*()_+`-=[]{}|;':\",.<>?", 0x2A52D7D3 },
TestHash{ "/", 0x13A3A6E5 },
TestHash{ "\\", 0xD7DED775 },
TestHash{ "\r\n\t ", 0xC0038449 }
);
auto hash = SStrHash(testcase.str, SSTR_HASH_CASESENSITIVE, 123);
CHECK(hash == testcase.hash);
}
SECTION("hashing empty string with seed of 0 gives default seed") {
auto hash = SStrHash("", 0, 0);
CHECK(hash == 0x7FED7FED);
hash = SStrHash("", SSTR_HASH_CASESENSITIVE, 0);
CHECK(hash == 0x7FED7FED);
}
SECTION("hashing empty string with custom seed returns that seed") {
auto seed = GENERATE(1, 123, 0x7FED7FED, 0xFFFFFFFF);
auto hash = SStrHash("", 0, seed);
CHECK(hash == seed);
hash = SStrHash("", SSTR_HASH_CASESENSITIVE, seed);
CHECK(hash == seed);
}
}
TEST_CASE("SStrHashHT", "[string]") {
SECTION("hashes simple string correctly") {
auto hash = SStrHashHT("foo");