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all: improve tests

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Markus F.X.J. Oberhumer
2024-04-16 15:20:56 +02:00
parent 35c6a200ad
commit 1d2b276425
11 changed files with 249 additions and 216 deletions
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src/util/util.cpp
+7 -7
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@@ -919,15 +919,15 @@ bool makebakname(char *ofilename, size_t size, const char *ifilename, bool force
**************************************************************************/
unsigned get_ratio(upx_uint64_t u_len, upx_uint64_t c_len) {
constexpr unsigned n = 1000 * 1000;
constexpr unsigned N = 1000 * 1000;
if (u_len == 0)
return c_len == 0 ? 0 : n;
upx_uint64_t x = c_len * n;
assert(x / n == c_len);
return c_len == 0 ? 0 : N;
upx_uint64_t x = c_len * N;
assert(x / N == c_len); // sanity check
x /= u_len;
x += 50; // rounding
if (x >= 10 * n) // >= "1000%"
x = 10 * n - 1;
x += 50; // rounding; cannot overflow
if (x >= 10 * N) // >= "1000%"
x = 10 * N - 1;
return ACC_ICONV(unsigned, x);
}