@@ -448,10 +448,150 @@ main() {
 # Run JavaScript test files...
 add_task 'run_javascript_tests'
 if [[ -z "${skip_javascript_tests}" ]]; then
-files=$(echo "${changed_files}" | grep '/test/.*\.js$' | grep -v '/test/fixtures/.*\.js$' | grep -v '/test/.*/fixtures/.*\.js$' | tr '\n' ' ')
-if [[ -n "${files}" ]]; then
+# Find test files for a given package directory
+find_test_files() {
+local pkg_dir="$1"
+local pattern="$2"
+if [[ -d "$pkg_dir/test" ]]; then
+find "$pkg_dir/test" -name "$pattern" 2>/dev/null | grep -v 'fixtures'
+fi
+}
+
+# Extract package directory from a file path
+get_pkg_dir() {
+dirname "$(dirname "$1")"
+}
+
+# Extract package pattern for compilation
+get_pkg_pattern() {
+local pkg_dir="$1"
+local pkg_name=$(basename "$pkg_dir")
+local pkg_parent=$(dirname "$pkg_dir")
+echo "$(echo "$pkg_parent" | sed 's|.*/node_modules/@stdlib/||')/$pkg_name"
+}
+
+# Get changed test files directly
+test_files=$(echo "${changed_files}" | grep '/test/.*\.js$' | grep -v '/test/fixtures/.*\.js$' | grep -v '/test/.*/fixtures/.*\.js$')
+
+# Get changed test fixture JSON files
+fixture_json_files=$(echo "${changed_files}" | grep '/test/fixtures/.*\.json$')
+
+# For each changed JSON fixture, find the corresponding test files
+fixture_test_files=""
+if [[ -n "${fixture_json_files}" ]]; then
+echo 'Identifying tests for changed JSON fixtures...' >&2
+while IFS= read -r file; do
+# Get the package directory (two levels up from fixtures directory)
+pkg_dir=$(dirname "$(dirname "$(dirname "$file")")")
+
+# Find all JS test files in the package
+potential_tests=$(find "$pkg_dir/test" -name "*.js" 2>/dev/null | grep -v 'fixtures')
+if [[ -n "${potential_tests}" ]]; then
+fixture_test_files="${fixture_test_files} ${potential_tests}"
+fi
+done <<< "${fixture_json_files}"
+fi
+
+# Get changed source files
+js_source_files=$(echo "${changed_files}" | grep -E '/(lib)/.*\.js$')
+c_source_files=$(echo "${changed_files}" | grep -E '/src/.*\.c$')
+fortran_source_files=$(echo "${changed_files}" | grep -E '/src/.*\.(f|f90|for|f77)$')
+manifest_files=$(echo "${changed_files}" | grep 'manifest.json$')
+
+source_test_files=""
+packages_to_compile=""
+
+# Process JavaScript source files
+if [[ -n "${js_source_files}" ]]; then
+echo 'Identifying tests for changed JavaScript source files...' >&2
+while IFS= read -r file; do
+pkg_dir=$(get_pkg_dir "$file")
+potential_tests=$(find_test_files "$pkg_dir" "*.js")
+if [[ -n "${potential_tests}" ]]; then
+source_test_files="${source_test_files} ${potential_tests}"
+fi
+done <<< "${js_source_files}"
+fi
+
+# Process C and Fortran source files and manifest files
+if [[ -n "${c_source_files}" || -n "${fortran_source_files}" || -n "${manifest_files}" ]]; then
+echo 'Identifying tests for changed native source files and manifests...' >&2
+
+# Process C source files
+if [[ -n "${c_source_files}" ]]; then
+while IFS= read -r file; do
+pkg_dir=$(get_pkg_dir "$file")
+pkg_pattern=$(get_pkg_pattern "$pkg_dir")
+
+# Add to packages to compile
+if [[ -n "$pkg_pattern" && "$packages_to_compile" != *"$pkg_pattern"* ]]; then
+packages_to_compile="${packages_to_compile} ${pkg_pattern}"
+fi
+
+potential_tests=$(find_test_files "$pkg_dir" "*.native.js")
+if [[ -n "${potential_tests}" ]]; then
+source_test_files="${source_test_files} ${potential_tests}"
+fi
+done <<< "${c_source_files}"
+fi
+
+# Process Fortran source files
+if [[ -n "${fortran_source_files}" ]]; then
+while IFS= read -r file; do
+pkg_dir=$(get_pkg_dir "$file")
+pkg_pattern=$(get_pkg_pattern "$pkg_dir")
+
+# Add to packages to compile
+if [[ -n "$pkg_pattern" && "$packages_to_compile" != *"$pkg_pattern"* ]]; then
+packages_to_compile="${packages_to_compile} ${pkg_pattern}"
+fi
+
+potential_tests=$(find_test_files "$pkg_dir" "*.native.js")
+if [[ -n "${potential_tests}" ]]; then
+source_test_files="${source_test_files} ${potential_tests}"
+fi
+done <<< "${fortran_source_files}"
+fi
+
+# Process manifest files
+if [[ -n "${manifest_files}" ]]; then
+while IFS= read -r file; do
+pkg_dir=$(dirname "$file")
+pkg_pattern=$(get_pkg_pattern "$pkg_dir")
+
+# Add to packages to compile if it has a src directory with C files
+if [[ -d "$pkg_dir/src" ]] && ls "$pkg_dir/src"/*.c >/dev/null 2>&1; then
+if [[ -n "$pkg_pattern" && "$packages_to_compile" != *"$pkg_pattern"* ]]; then
+packages_to_compile="${packages_to_compile} ${pkg_pattern}"
+fi
+
+potential_tests=$(find_test_files "$pkg_dir" "*.native.js")
+if [[ -n "${potential_tests}" ]]; then
+source_test_files="${source_test_files} ${potential_tests}"
+fi
+fi
+done <<< "${manifest_files}"
+fi
+
+# Compile native add-ons if needed
+if [[ -n "${packages_to_compile}" ]]; then
+echo "Compiling native add-ons for: ${packages_to_compile}" >&2
+for pkg in ${packages_to_compile}; do
+make install-node-addons NODE_ADDONS_PATTERN="${pkg}" > /dev/null >&2
+if [[ "$?" -ne 0 ]]; then
+echo "Failed to compile native add-on for ${pkg}" >&2
+task_status 'failed'
+on_error 1
+fi
+done
+fi
+fi
+
+# Combine test files from all sources and remove duplicates
+all_test_files=$(echo "${test_files} ${fixture_test_files} ${source_test_files}" | tr ' ' '\n' | sort | uniq | tr '\n' ' ')
+if [[ -n "${all_test_files}" ]]; then
 echo 'Running JavaScript test files...' >&2
-make FILES="${files}" test-javascript-files > /dev/null >&2
+make FILES="${all_test_files}" test-javascript-files > /dev/null >&2
 if [[ "$?" -ne 0 ]]; then
 task_status 'failed'
 echo '' >&2