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test: add function to explicitly check for external dependencies

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Useful when binary is called indirectly (e.g. from emacs).
This commit is contained in:
Dmitry Kurochkin 2011-11-27 22:36:17 +04:00 committed by David Bremner
parent d095902266
commit f0fbdad04b
1 changed files with 14 additions and 0 deletions
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14
test/test-lib.sh
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@ -555,12 +555,26 @@ test_declare_external_prereq () {
hash $binary 2>/dev/null || eval " hash $binary 2>/dev/null || eval "
$binary () { $binary () {
test_missing_external_prereq_${binary}_=t
echo -n \"\$test_subtest_missing_external_prereqs_\" | grep -e \" $name \" || echo -n \"\$test_subtest_missing_external_prereqs_\" | grep -e \" $name \" ||
test_subtest_missing_external_prereqs_=\"$test_subtest_missing_external_prereqs_ $name\" test_subtest_missing_external_prereqs_=\"$test_subtest_missing_external_prereqs_ $name\"
false false
}" }"
} }
# Explicitly require external prerequisite. Useful when binary is
# called indirectly (e.g. from emacs).
# Returns success if dependency is available, failure otherwise.
test_require_external_prereq () {
binary="$1"
if [ "$(eval echo -n \$test_missing_external_prereq_${binary}_)" = t ]; then
# dependency is missing, call the replacement function to note it
eval "$binary"
else
true
fi
}
# You are not expected to call test_ok_ and test_failure_ directly, use # You are not expected to call test_ok_ and test_failure_ directly, use
# the text_expect_* functions instead. # the text_expect_* functions instead.