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#!/usr/bin/env bats
# Unit tests for installer/lib/btrfs.sh
#
# Coverage scope: pure helpers only. Most of btrfs.sh wraps cryptsetup,
# mkfs.btrfs, snapper, grub-install, and arch-chroot — all deliberately
# VM-tested per the project's testing-strategy.org policy. Only
# get_luks_devices is covered here.
setup() {
# shellcheck disable=SC1091
source "${BATS_TEST_DIRNAME}/../../installer/lib/common.sh"
# shellcheck disable=SC1091
source "${BATS_TEST_DIRNAME}/../../installer/lib/btrfs.sh"
}
#############################
# get_luks_devices
#############################
# Asymmetric naming: index 0 uses the bare LUKS_MAPPER_NAME (no
# suffix), subsequent indices append the index. Tests pin both the
# bare-first behavior and the suffix-on-rest behavior.
@test "get_luks_devices: count=1 emits the bare-named mapper device" {
LUKS_MAPPER_NAME="cryptroot"
run get_luks_devices 1
[ "$status" -eq 0 ]
[ "$output" = "/dev/mapper/cryptroot" ]
}
@test "get_luks_devices: count=3 emits bare name + suffixed entries" {
LUKS_MAPPER_NAME="cryptroot"
run get_luks_devices 3
[ "$status" -eq 0 ]
[ "$output" = "/dev/mapper/cryptroot /dev/mapper/cryptroot1 /dev/mapper/cryptroot2" ]
}
@test "get_luks_devices: count=0 emits empty output" {
LUKS_MAPPER_NAME="cryptroot"
run get_luks_devices 0
[ "$status" -eq 0 ]
[ -z "$output" ]
}
@test "get_luks_devices: count=5 emits five entries with correct suffix progression" {
LUKS_MAPPER_NAME="cryptroot"
run get_luks_devices 5
[ "$status" -eq 0 ]
[ "$output" = "/dev/mapper/cryptroot /dev/mapper/cryptroot1 /dev/mapper/cryptroot2 /dev/mapper/cryptroot3 /dev/mapper/cryptroot4" ]
}
@test "get_luks_devices: non-numeric count is treated as zero (no crash)" {
LUKS_MAPPER_NAME="cryptroot"
run get_luks_devices abc
[ "$status" -eq 0 ]
[ -z "$output" ]
}
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