zig/std/special/compiler_rt/fixunstfti_test.zig
Andrew Kelley c2db077574
std.debug.assert: remove special case for test builds
Previously, std.debug.assert would `@panic` in test builds,
if the assertion failed. Now, it's always `unreachable`.

This makes release mode test builds more accurately test
the actual code that will be run.

However this requires tests to call `std.testing.expect`
rather than `std.debug.assert` to make sure output is correct.

Here is the explanation of when to use either one, copied from
the assert doc comments:

Inside a test block, it is best to use the `std.testing` module
rather than assert, because assert may not detect a test failure
in ReleaseFast and ReleaseSafe mode. Outside of a test block, assert
is the correct function to use.

closes #1304
2019-02-08 18:23:38 -05:00

33 lines
1.0 KiB
Zig

const __fixunstfti = @import("fixunstfti.zig").__fixunstfti;
const testing = @import("std").testing;
fn test__fixunstfti(a: f128, expected: u128) void {
const x = __fixunstfti(a);
testing.expect(x == expected);
}
const inf128 = @bitCast(f128, u128(0x7fff0000000000000000000000000000));
test "fixunstfti" {
test__fixunstfti(inf128, 0xffffffffffffffffffffffffffffffff);
test__fixunstfti(0.0, 0);
test__fixunstfti(0.5, 0);
test__fixunstfti(0.99, 0);
test__fixunstfti(1.0, 1);
test__fixunstfti(1.5, 1);
test__fixunstfti(1.99, 1);
test__fixunstfti(2.0, 2);
test__fixunstfti(2.01, 2);
test__fixunstfti(-0.01, 0);
test__fixunstfti(-0.99, 0);
test__fixunstfti(0x1.p+128, 0xffffffffffffffffffffffffffffffff);
test__fixunstfti(0x1.FFFFFEp+126, 0x7fffff80000000000000000000000000);
test__fixunstfti(0x1.FFFFFEp+127, 0xffffff00000000000000000000000000);
test__fixunstfti(0x1.FFFFFEp+128, 0xffffffffffffffffffffffffffffffff);
test__fixunstfti(0x1.FFFFFEp+129, 0xffffffffffffffffffffffffffffffff);
}