SIGABRT from std.testing.expect on release-small

[SamTebbs33]

I am seeing a SIGABRT when using std.testing.expect on a false value and using release-small mode.

test "expect" {
    var value = false;
    @import("std").testing.expect(value);
}

Run with zig test sigabrt.zig --release-small.

The GDB trace is

Starting program: /home/sam/repos/pluto/zig-cache/o/2YK4aFEgzVpWYBVkanixY4E6vNwEB5KoGX4TxL38Tfz7TChRAwVLjx8CZJlQYmM_/test
Test [1/1] test "expect"...test failure
Program received signal SIGABRT, Aborted.
0x0000000000204ebb in std.os.linux.x86_64.syscall4 (number=rt_sigprocmask, arg1=2, arg2=140737488348632, arg3=0,
arg4=8) at /home/sam/bin/zig-linux-x86_64-0.6.0+abcd4ea5d/lib/zig/std/os/linux/x86_64.zig:42
42 return asm volatile ("syscall"
(gdb) bt
#0 0x0000000000204ebb in std.os.linux.x86_64.syscall4 (number=rt_sigprocmask, arg1=2, arg2=140737488348632, arg3=0,
arg4=8) at /home/sam/bin/zig-linux-x86_64-0.6.0+abcd4ea5d/lib/zig/std/os/linux/x86_64.zig:42
#1 std.os.linux.sigprocmask (flags=2, set=0x7fffffffe5d8, oldset=0x0)
at /home/sam/bin/zig-linux-x86_64-0.6.0+abcd4ea5d/lib/zig/std/os/linux.zig:781
#2 std.os.raise (sig=6 '\006') at /home/sam/bin/zig-linux-x86_64-0.6.0+abcd4ea5d/lib/zig/std/os.zig:242
#3 0x000000000020488b in std.os.abort () at /home/sam/bin/zig-linux-x86_64-0.6.0+abcd4ea5d/lib/zig/std/os.zig:205
#4 0x0000000000204543 in std.debug.panicExtra (trace=, first_trace_addr=..., args=...)
at /home/sam/bin/zig-linux-x86_64-0.6.0+abcd4ea5d/lib/zig/std/debug.zig:272
#5 0x0000000000203d1f in std.builtin.default_panic (msg=..., error_return_trace=0x2)
at /home/sam/bin/zig-linux-x86_64-0.6.0+abcd4ea5d/lib/zig/std/builtin.zig:564
#6 0x000000000020480d in std.testing.expect (ok=false)
at /home/sam/bin/zig-linux-x86_64-0.6.0+abcd4ea5d/lib/zig/std/testing.zig:193
#7 0x0000000000203ef6 in test "expect" () at /home/sam/repos/pluto/heap.zig:3
#8 0x000000000020dbd7 in std.special.main ()
at /home/sam/bin/zig-linux-x86_64-0.6.0+abcd4ea5d/lib/zig/std/special/test_runner.zig:47
#9 0x0000000000204880 in std.start.callMain ()
at /home/sam/bin/zig-linux-x86_64-0.6.0+abcd4ea5d/lib/zig/std/start.zig:252
#10 std.start.initEventLoopAndCallMain () at /home/sam/bin/zig-linux-x86_64-0.6.0+abcd4ea5d/lib/zig/std/start.zig:225
#11 std.start.callMainWithArgs (argc=1, argv=0x7fffffffe908, envp=...)
at /home/sam/bin/zig-linux-x86_64-0.6.0+abcd4ea5d/lib/zig/std/start.zig:188
#12 std.start.posixCallMainAndExit () at /home/sam/bin/zig-linux-x86_64-0.6.0+abcd4ea5d/lib/zig/std/start.zig:179
#13 0x000000000020481c in std.start._start ()
at /home/sam/bin/zig-linux-x86_64-0.6.0+abcd4ea5d/lib/zig/std/start.zig:123

[Vexu]

std.testing.expect calls @panic which calls std.os.abort, what do you expect to happen when the test fails?

[SamTebbs33]

I expected there to be a stacktrace that is seen with debug mode. Unless this is purposefully left out of release mode.

[SamTebbs33]

Looking at the docs, I realise that this is intentional. I wasn't aware, sorry for the noise!