assertTrue results in "ASSERT:Unknown failure ..." with "set -o errexit"

[HankB]

#!/usr/bin/env bash
# Bash3 Boilerplate. Copyright (c) 2014, kvz.io
set -o errexit
set -o pipefail
set -o nounset
#set -x


test_assertTrue() {
    assertTrue 'test failed' "[ -r /some/non-existant/file' ]"
}

# Load shUnit2.
. shunit2

produces

test_assertTrue
ASSERT:Unknown failure encountered running a test

Ran 1 test.

FAILED (failures=1)

With "set -o errexit" commented out,

test_assertTrue
ASSERT:test failed

Ran 1 test.

FAILED (failures=1)

Debian Bullseye, bash

GNU bash, version 5.1.4(1)-release (x86_64-pc-linux-gnu)
Copyright (C) 2020 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>

This is free software; you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

and shunit

ii  shunit2        2.1.6-1.2    all          unit test framework for Bourne based shell scripts

Same result on Debian Buster with bash

GNU bash, version 5.0.3(1)-release (x86_64-pc-linux-gnu)
Copyright (C) 2019 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>

This is free software; you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

and shunit

ii  shunit2        2.1.6-1.1    all          unit test framework for Bourne based shell scripts

[Kate Ward]

Could you try the latest shUnit2 from the master branch? I believe that the set -e (set -o errexit) issues are fixed as part of the not-yet-released 2.1.9 series.

[Kate Ward]

Ok, I've been able to reproduce this on my local machine. I'll see what I can figure out. Note, this was against 2.1.8.

$ ./i141_test.sh 
test_assertTrue
ASSERT:unknown failure encountered running a test

Ran 1 test.

FAILED (failures=1)

[Kate Ward]

OK, confirmed that older releases (including 2.1.8 which I tested) don't work. Please upgrade to the latest shunit2 from HEAD as it works.

$ ./i141_test.sh 
test_assertTrue
ASSERT:test failed
shunit2:ERROR test_assertTrue() returned non-zero return code.

Ran 1 test.

FAILED (failures=1)

To fix the "shunit2:ERROR test_assertTrue()" error, add a return 0 to the end of the test so the test_assertTrue() function returns successfully.