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tests/unit/cli.bats

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+#!/usr/bin/env bats
+# SPDX-License-Identifier: GPL-2.0-or-later
+# Copyright (C) 2026 Bryan Joshua Pedini
+
+# CLI parsing and exit codes.
+
+load test_helper
+
+setup() { common_setup; }
+
+@test "--help prints the usage and exits 0" {
+	run skup --help
+	assert_success
+	assert_line 'usage: skeptical-updater [options] [command]'
+	assert_line --partial 'refresh           recompute dependency closures for every '"'user'"' root'
+	assert_line --partial '--dry-run         print native commands instead of running mutating ones'
+	assert_line --partial 'exit status: 0 ok, 1 usage/backend error, 2 aborted'
+	[[ -z $(cat "$FAKE_LOG") ]]
+}
+
+@test "-h is --help, even after a command" {
+	run skup list -h
+	assert_success
+	assert_line 'usage: skeptical-updater [options] [command]'
+}
+
+@test "--version and -V print the version" {
+	run skup --version
+	assert_success
+	assert_output 'skeptical-updater 0.1.0'
+	run skup -V
+	assert_output 'skeptical-updater 0.1.0'
+}
+
+@test "an unknown option is a usage error (exit 1)" {
+	run skup --frobnicate
+	assert_failure 1
+	assert_line 'skeptical-updater: error: unknown option: --frobnicate'
+	assert_line "Try 'skeptical-updater --help'."
+}
+
+@test "an unknown command is a usage error (exit 1)" {
+	run skup upgrade
+	assert_failure 1
+	assert_line 'skeptical-updater: error: unknown command: upgrade'
+}
+
+@test "list, trusted and refresh take no arguments" {
+	for c in list trusted refresh; do
+		run skup "$c" extra
+		assert_failure 1
+		assert_output --partial "'$c' takes no arguments"
+	done
+}
+
+@test "the interactive mode takes no arguments either" {
+	run skup '' foo
+	assert_failure 1
+}
+
+@test "trust and untrust need at least one package" {
+	run skup trust
+	assert_failure 1
+	assert_output --partial "'trust' needs at least one package name"
+	run skup untrust
+	assert_failure 1
+	assert_output --partial "'untrust' needs at least one package name"
+}
+
+@test "info and show need exactly one package" {
+	run skup info
+	assert_failure 1
+	assert_output --partial "'info' needs exactly one package name"
+	run skup show a b
+	assert_failure 1
+	assert_output --partial "'show' needs exactly one package name"
+}
+
+@test "invalid package names are rejected before anything runs" {
+	# shellcheck disable=SC2016 # literal $(id) on purpose
+	for bad in '-rf' 'a b' 'foo;rm' '../x' 'x/y' '$(id)'; do
+		run skup trust -- "$bad"
+		assert_failure 1
+		assert_output --partial "invalid package name: '$bad'"
+	done
+	[[ -z $(cat "$FAKE_LOG") ]]
+	[[ ! -e $STATE ]]
+}
+
+@test "valid package names with + . : ~ @ _ are accepted" {
+	run skup --backend=apt trust 'libstdc++6' 'libc6:i386' 'g++-12' 'a.b~c' 'x_y@z'
+	assert_success
+	run cut -f2 "$STATE_FILE"
+	assert_output "$(printf '%s\n' "$HEADER" a.b~c g++-12 libc6:i386 libstdc++6 x_y@z)"
+}
+
+@test "--backend must name a known backend" {
+	run skup --backend=portage list
+	assert_failure 1
+	assert_output --partial "unknown backend 'portage' (expected apt, dnf, pacman or zypper)"
+}
+
+@test "--backend and --state-dir without a value are usage errors" {
+	run skup list --backend
+	assert_failure 1
+	assert_output --partial '--backend needs a value'
+	run skup list --state-dir
+	assert_failure 1
+	assert_output --partial '--state-dir needs a value'
+	run skup list --state-dir=
+	assert_failure 1
+	assert_output --partial 'empty state directory'
+}
+
+@test "options may follow the command; --backend NAME as two words" {
+	run skup list --backend apt --no-refresh
+	assert_success
+	assert_line --index 0 'Backend: apt (Debian GNU/Linux 12 (bookworm))'
+	log_lacks '^apt-get update'
+}
+
+@test "--state-dir overrides SKEPTICAL_UPDATER_STATE_DIR" {
+	run skup --state-dir="$BATS_TEST_TMPDIR/other" trust su-dummy-c
+	assert_success
+	[[ -f $BATS_TEST_TMPDIR/other/trusted.tsv ]]
+	[[ ! -e $STATE ]]
+}
+
+@test "-- ends option parsing" {
+	run skup info -- --all
+	assert_failure 1
+	assert_output --partial "invalid package name: '--all'"
+}
+
+@test "no ANSI colours when stdout is not a terminal" {
+	run skup list --no-refresh
+	assert_success
+	refute_output --partial $'\e['
+}
+
+@test "--no-color and NO_COLOR are accepted" {
+	run skup --no-color list --no-refresh
+	assert_success
+	NO_COLOR=1 run skup list --no-refresh
+	assert_success
+	refute_output --partial $'\e['
+}