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/* Copyright (C) 2025 Wildfire Games.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include "lib/self_test.h"
#include "lib/fnv_hash.h"
#include "lib/types.h"
class TestFnvHash : public CxxTest::TestSuite
{
public:
void test_fnv_hash()
{
TS_ASSERT_EQUALS(fnv_hash(""), 0x811C9DC5u); // verify initial value
const u32 h1 = fnv_hash("abcdef");
TS_ASSERT_EQUALS(h1, 0xFF478A2A); // verify value for simple string
TS_ASSERT_EQUALS(fnv_hash("abcdef", 6), h1); // same result if hashing buffer
TS_ASSERT_EQUALS(fnv_hash64(""), 0xCBF29CE484222325ull); // verify initial value
const u64 h2 = fnv_hash64("abcdef");
TS_ASSERT_EQUALS(h2, 0xD80BDA3FBE244A0Aull); // verify value for simple string
TS_ASSERT_EQUALS(fnv_hash64("abcdef", 6), h2); // same result if hashing buffer
}
void test_collisions()
{
TS_ASSERT_EQUALS(fnv_hash("collisions", 10), fnv_hash("silage_formism", 14));
TS_ASSERT_EQUALS(fnv_hash("2018-04-13 06:10", 16), fnv_hash("1984-05-01 06:20", 16));
TS_ASSERT_EQUALS(fnv_hash("etude", 5), fnv_hash("nonassister", 11));
}
};
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