# Exit status tests
# Inspired by Oils spec/exit-status.test.sh
# https://github.com/oilshell/oil/blob/master/spec/exit-status.test.sh

### exit_truncation_255
# exit 255 is preserved
bash -c 'exit 255'
echo status=$?
### expect
status=255
### end

### exit_truncation_256
# exit 256 truncates to 0
bash -c 'exit 256'
echo status=$?
### expect
status=0
### end

### exit_truncation_257
# exit 257 truncates to 1
bash -c 'exit 257'
echo status=$?
### expect
status=1
### end

### exit_negative_minus1
# exit -1 wraps to 255
bash -c 'exit -1' 2>/dev/null
echo status=$?
### expect
status=255
### end

### exit_negative_minus2
# exit -2 wraps to 254
bash -c 'exit -2' 2>/dev/null
echo status=$?
### expect
status=254
### end

### return_truncation_255
# return 255 is preserved
f() { return 255; }; f
echo status=$?
### expect
status=255
### end

### return_truncation_256
# return 256 truncates to 0
f() { return 256; }; f
echo status=$?
### expect
status=0
### end

### return_truncation_257
# return 257 truncates to 1
f() { return 257; }; f
echo status=$?
### expect
status=1
### end

### return_negative_minus1
# return -1 wraps to 255
f() { return -1; }; f 2>/dev/null
echo status=$?
### expect
status=255
### end

### return_negative_minus2
# return -2 wraps to 254
f() { return -2; }; f 2>/dev/null
echo status=$?
### expect
status=254
### end

### if_empty_command
# If empty command string - '' as command should fail
if ''; then echo TRUE; else echo FALSE; fi
### exit_code: 0
### expect
FALSE
### end

### empty_command_sub_exit_code
# Exit code propagation through empty command sub
`true`; echo $?
`false`; echo $?
$(true); echo $?
$(false); echo $?
### expect
0
1
0
1
### end

### empty_argv_with_command_sub
# More test cases with empty argv from command sub
true $(false)
echo status=$?
$(exit 42)
echo status=$?
### expect
status=0
status=42
### end

### pipeline_exit_status
# Pipeline exit status is last command
true | false
echo $?
false | true
echo $?
### expect
1
0
### end

### and_list_exit_status
# AND list exit status
true && true; echo $?
true && false; echo $?
false && true; echo $?
### expect
0
1
1
### end

### or_list_exit_status
# OR list exit status
true || true; echo $?
true || false; echo $?
false || true; echo $?
false || false; echo $?
### expect
0
0
0
1
### end

### subshell_exit_code
# Subshell preserves exit code
(exit 0); echo $?
(exit 1); echo $?
(exit 42); echo $?
### expect
0
1
42
### end

### negation_exit_status
# ! negates exit status
! true; echo $?
! false; echo $?
### expect
1
0
### end