dongshengyuan
574eed3b0d
Implement the TODO item for `udevadm info -q symlink`: keep the default space-separated output pager-free, and make `--value` print one symlink per line with an empty separator line between devices.
89 lines
2.3 KiB
Bash
Executable File
89 lines
2.3 KiB
Bash
Executable File
#!/usr/bin/env bash
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# SPDX-License-Identifier: LGPL-2.1-or-later
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set -ex
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set -o pipefail
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# shellcheck source=test/units/util.sh
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. "$(dirname "$0")"/util.sh
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assert_array_contains() {
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local needle="${1:?}"
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local item
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shift
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for item in "$@"; do
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[[ "$item" == "$needle" ]] && return 0
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done
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echo >&2 "FAIL: '$needle' not found"
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return 1
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}
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# shellcheck disable=SC2329
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cleanup() {
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set +e
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rm -f "$rules"
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udevadm control --reload
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udevadm trigger --settle --action change /dev/null /dev/full
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rm -rf /dev/test-udevadm-symlink-query
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}
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rules="/run/udev/rules.d/99-test-17.symlink-query.rules"
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trap cleanup EXIT
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mkdir -p "${rules%/*}"
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cat >"$rules" <<'EOF'
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SUBSYSTEM=="mem", KERNEL=="null", SYMLINK+="test-udevadm-symlink-query/null-a"
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SUBSYSTEM=="mem", KERNEL=="null", SYMLINK+="test-udevadm-symlink-query/null-b"
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SUBSYSTEM=="mem", KERNEL=="full", SYMLINK+="test-udevadm-symlink-query/full-a"
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SUBSYSTEM=="mem", KERNEL=="full", SYMLINK+="test-udevadm-symlink-query/full-b"
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EOF
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udevadm control --reload
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udevadm trigger --settle --action change /dev/null /dev/full
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read -r -a null_links < <(udevadm info -q symlink /dev/null)
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read -r -a full_links < <(udevadm info -q symlink /dev/full)
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assert_array_contains "test-udevadm-symlink-query/null-a" "${null_links[@]}"
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assert_array_contains "test-udevadm-symlink-query/null-b" "${null_links[@]}"
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assert_array_contains "test-udevadm-symlink-query/full-a" "${full_links[@]}"
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assert_array_contains "test-udevadm-symlink-query/full-b" "${full_links[@]}"
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mapfile -t links_by_value < <(udevadm info -q symlink --value /dev/null /dev/full)
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value_null_links=()
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value_full_links=()
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n_separators=0
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for link in "${links_by_value[@]}"; do
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if [[ -z "$link" ]]; then
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n_separators=$((n_separators + 1))
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continue
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fi
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case "$n_separators" in
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0)
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value_null_links+=("$link")
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;;
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1)
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value_full_links+=("$link")
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;;
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*)
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assert_not_reached
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esac
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done
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assert_eq "$n_separators" 2
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assert_eq "${#value_null_links[@]}" "${#null_links[@]}"
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assert_eq "${#value_full_links[@]}" "${#full_links[@]}"
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for link in "${null_links[@]}"; do
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assert_array_contains "$link" "${value_null_links[@]}"
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done
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for link in "${full_links[@]}"; do
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assert_array_contains "$link" "${value_full_links[@]}"
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done
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exit 0
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