package crc64_test;

import hash.crc64;

fn putstr(s: str, into: []u8, off: i32) i32 = {
	let i: i32 = 0;
	for (i < s.len) {
		into[off + i] = s[i];
		i += 1;
	};
	return off + s.len;
};

fn check(s: str, ecma: u64, iso: u64) void = {
	let arr: [128]u8;
	let n: i32 = putstr(s, arr[0:128], 0);
	let buf: []u8 = arr[0:n];
	assert(!(crc64.sum64ecma(buf) != ecma));
	assert(!(crc64.sum64iso(buf)  != iso));
};

@test fn vec_empty() void = {
	let arr: [1]u8;
	let buf: []u8 = arr[0:0];
	assert(!(crc64.sum64ecma(buf) != 0u64));
	assert(!(crc64.sum64iso(buf)  != 0u64));
};

@test fn vec_oscar() void = {
	check("Man can believe the impossible, but can never believe the improbable. -- Oscar Wilde",
		0x17F71EF3BB851DC7u64, 0xD0E8ED57865D6AC6u64);
};

@test fn vec_hegel() void = {
	check("We learn from history that we do not learn from history. -- Georg Hegel",
		0xAA3C335BB49ABE9Du64, 0x5FD192CC516BBEC3u64);
};

@test fn vec_chapelain() void = {
	check("The final delusion is the belief that one has lost all delusions. -- Maurice Chapelain",
		0x7DFC4F7CE9552D23u64, 0xF71B429C925D99AEu64);
};

@test fn vec_unix() void = {
	check("UNIX is simple and coherent",
		0x9C1938E72C1D8619u64, 0x372ABFFD392FF27Du64);
};

@test fn vec_gnu() void = {
	check("GNU's not UNIX",
		0x2C0C97B1CB17FCBAu64, 0x9BD1FA95A419A43Du64);
};

@test fn vec_blm() void = {
	check("Black lives matter",
		0x159BB7B6086BF47Eu64, 0xC218CBB390CF44EBu64);
};