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tests: resolve native library paths via ldd for distro portability #37

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21 changes: 18 additions & 3 deletions tests/run_library_filter_tests.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -98,24 +98,39 @@ if [ -x "$MEMORY_ANALYSIS_TEST" ]; then
echo "Library Filter Tests"
echo "================================================================================"

# Resolve native library paths from the test binary's own linkage.
# Architecture-agnostic: ldd returns the paths the dynamic linker
# would actually use for this binary, regardless of distro layout.
LIBM_PATH=$(ldd "$MEMORY_ANALYSIS_TEST" 2>/dev/null \
| awk '$1 ~ /^libm\.so/{print $3; exit}')
if [ -z "$LIBM_PATH" ] || [ ! -e "$LIBM_PATH" ]; then
echo -e "${RED}ERROR: Could not resolve libm.so path from ${MEMORY_ANALYSIS_TEST}${NC}" >&2
echo " ldd output:" >&2
ldd "$MEMORY_ANALYSIS_TEST" 2>&1 | sed 's/^/ /' >&2
exit 1
fi
NATIVE_LIB_DIR=$(dirname "$LIBM_PATH")
LIBCRYPT_PATH=$(ls "${NATIVE_LIB_DIR}"/libcrypt.so.* 2>/dev/null \
| head -1)

# Test: Baseline - exclude non-existent library (should PASS, no behavior change)
run_library_filter_test "libfilter_exclude_nonexistent" \
"$MEMORY_ANALYSIS_TEST" \
'{"exclude": ["/nonexistent/fake_library.so"]}' \
"present" \
"libm.so"

# Test: Exclude /lib64/libm.so.6 (should NOT appear in "Adding" output)
# Test: Exclude libm (should NOT appear in "Adding" output)
run_library_filter_test "libfilter_exclude_libm" \
"$MEMORY_ANALYSIS_TEST" \
'{"exclude": ["/lib64/libm.so.6"]}' \
"{\"exclude\": [\"${LIBM_PATH}\"]}" \
"absent" \
"libm.so"

# Test: Include a file that wouldn't normally be scanned
run_library_filter_test "libfilter_include_extra" \
"$MEMORY_ANALYSIS_TEST" \
'{"include": ["/lib64/libcrypt.so.2"]}' \
"{\"include\": [\"${LIBCRYPT_PATH}\"]}" \
"present" \
"libcrypt.so"

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