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Differentiate in the tests against getenv() between an empty string and a

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NULL by having the test program return *NULL* for NULL's (no existing
variable) instead of an empty string (variable with empty value).
This commit is contained in:
Sean Farley 2008-04-23 00:45:48 +00:00
parent 9b4a8ab7ba
commit 8cfaf5a9e1
2 changed files with 15 additions and 12 deletions
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2
tools/regression/environ/envctl.c
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@ -126,7 +126,7 @@ main(int argc, char **argv)
case 'G':
case 'g':
value = getenv(arg == 'g' ? optarg : NULL);
printf("%s%s", value == NULL ? "" : value, eol);
printf("%s%s", value == NULL ? "*NULL*" : value, eol);
break;
case 'p':

25
tools/regression/environ/envtest.t
View File

@ -68,6 +68,9 @@ check_result()
# Regression tests
#
# How NULL will be returned by program.
readonly NULL="\*NULL\*"
# Setup environment for tests.
readonly BAR="bar"
readonly NEWBAR="newbar"
@ -79,16 +82,16 @@ run_test -g FOO
check_result "${FOO}"
run_test -c -g FOO
check_result ""
check_result "${NULL}"
run_test -g FOOBAR
check_result ""
check_result "${NULL}"
run_test -c -g FOOBAR
check_result ""
check_result "${NULL}"
run_test -G
check_result ""
check_result "${NULL}"
# Sets.
@ -138,10 +141,10 @@ check_result "0 0 ${BAR} 0 0 ${NEWBAR}"
# Unsets.
run_test -u FOO -g FOO
check_result "0 0"
check_result "0 0 ${NULL}"
run_test -c -u FOO -g FOO
check_result "0 0"
check_result "0 0 ${NULL}"
run_test -U
check_result "-1 22"
@ -153,11 +156,11 @@ run_test -u "=${BAR}"
check_result "-1 22"
run_test -c -s FOO ${NEWBAR} 1 -g FOO -u FOO -g FOO
check_result "0 0 ${NEWBAR} 0 0"
check_result "0 0 ${NEWBAR} 0 0 ${NULL}"
run_test -c -u FOO -s FOO ${BAR} 1 -g FOO -u FOO -g FOO -c -u FOO\
-s FOO ${NEWBAR} 1 -g FOO
check_result "0 0 0 0 ${BAR} 0 0 0 0 0 0 ${NEWBAR}"
check_result "0 0 0 0 ${BAR} 0 0 ${NULL} 0 0 0 0 ${NEWBAR}"
# Puts.
@ -189,7 +192,7 @@ run_test -s FOO ${NEWBAR} 1 -p FOO=${BAR} -u FOO
check_result "0 0 0 0 0 0"
run_test -s FOO ${NEWBAR} 1 -p FOO=${BAR} -c -g FOO -p FOO=${NEWBAR} -g FOO
check_result "0 0 0 0 0 0 ${NEWBAR}"
check_result "0 0 0 0 ${NULL} 0 0 ${NEWBAR}"
run_test -c -p FOO=${BAR} -g FOO -c -p FOO=${NEWBAR} -g FOO
check_result "0 0 ${BAR} 0 0 ${NEWBAR}"
@ -197,7 +200,7 @@ check_result "0 0 ${BAR} 0 0 ${NEWBAR}"
# environ replacements.
run_test -r -g FOO -s FOO ${BAR} 1 -g FOO -u FOO -g FOO
check_result "${BAR} 0 0 ${BAR} 0 0"
check_result "${BAR} 0 0 ${BAR} 0 0 ${NULL}"
run_test -r -g FOO -u FOO -g FOO -s FOO ${BAR} 1 -g FOO
check_result "${BAR} 0 0 0 0 ${BAR}"
check_result "${BAR} 0 0 ${NULL} 0 0 ${BAR}"