!
does not cause a test failure.#!/usr/bin/env bats
@test "test" {
# ... code
! test_file_exists
# ... more code
}
#!/usr/bin/env bats
@test "test" {
# ... code
run ! test_file_exists
# ... more code
}
Bats uses set -e
and trap ERR
to catch test
failures as early as possible. Although the return code of a
!
negated command is inverted, they will never trigger
errexit
, due to a bash design decision (see Related Resources). This means that tests
which use !
can never fail.
Starting with bats 1.5.0 you can use !
inside
run
. If you are still using an older bats version, you can
rewrite ! <command>
to
<command> && exit 1
.
The return code of the last command in the test will be the exit code
of the test function. This means that you can use
! <command>
on the last line of the test and it will
still fail appropriately. However, you are encouraged to still use
run !
in this case for consistency.
Stackoverflow: Why do
I need parenthesis In bash set -e
and negated return
code
bash manpage (look
at trap [-lp] [[arg] sigspec ...]
):
The ERR trap is not executed [...] if the command's return value is being inverted via !
ShellCheck is a static analysis tool for shell scripts. This page is part of its documentation.