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#!/usr/bin/env bats
# Unit tests for installer/lib/raid.sh
setup() {
# shellcheck disable=SC1091
source "${BATS_TEST_DIRNAME}/../../installer/lib/raid.sh"
}
#############################
# raid_valid_levels_for_count
#############################
@test "raid_valid_levels_for_count: 0 disks → empty output" {
run raid_valid_levels_for_count 0
[ "$status" -eq 0 ]
[ -z "$output" ]
}
@test "raid_valid_levels_for_count: 1 disk → empty output" {
run raid_valid_levels_for_count 1
[ "$status" -eq 0 ]
[ -z "$output" ]
}
@test "raid_valid_levels_for_count: 2 disks → mirror + stripe" {
run raid_valid_levels_for_count 2
[ "$status" -eq 0 ]
[ "$output" = "mirror
stripe" ]
}
@test "raid_valid_levels_for_count: 3 disks → + raidz1" {
run raid_valid_levels_for_count 3
[ "$status" -eq 0 ]
[ "$output" = "mirror
stripe
raidz1" ]
}
@test "raid_valid_levels_for_count: 4 disks → + raidz2" {
run raid_valid_levels_for_count 4
[ "$status" -eq 0 ]
[ "$output" = "mirror
stripe
raidz1
raidz2" ]
}
@test "raid_valid_levels_for_count: 5 disks → + raidz3" {
run raid_valid_levels_for_count 5
[ "$status" -eq 0 ]
[ "$output" = "mirror
stripe
raidz1
raidz2
raidz3" ]
}
@test "raid_valid_levels_for_count: 8 disks → same as 5 (no new levels)" {
levels_5=$(raid_valid_levels_for_count 5)
levels_8=$(raid_valid_levels_for_count 8)
[ "$levels_5" = "$levels_8" ]
}
#############################
# raid_is_valid
#############################
@test "raid_is_valid: empty level + 1 disk = valid (no RAID)" {
run raid_is_valid "" 1
[ "$status" -eq 0 ]
}
@test "raid_is_valid: any level + 1 disk = invalid" {
run raid_is_valid mirror 1
[ "$status" -eq 1 ]
}
@test "raid_is_valid: mirror + 2 disks = valid" {
run raid_is_valid mirror 2
[ "$status" -eq 0 ]
}
@test "raid_is_valid: stripe + 2 disks = valid" {
run raid_is_valid stripe 2
[ "$status" -eq 0 ]
}
@test "raid_is_valid: raidz1 + 2 disks = invalid (need 3)" {
run raid_is_valid raidz1 2
[ "$status" -eq 1 ]
}
@test "raid_is_valid: raidz1 + 3 disks = valid" {
run raid_is_valid raidz1 3
[ "$status" -eq 0 ]
}
@test "raid_is_valid: raidz2 + 3 disks = invalid (need 4)" {
run raid_is_valid raidz2 3
[ "$status" -eq 1 ]
}
@test "raid_is_valid: raidz2 + 4 disks = valid" {
run raid_is_valid raidz2 4
[ "$status" -eq 0 ]
}
@test "raid_is_valid: raidz3 + 4 disks = invalid (need 5)" {
run raid_is_valid raidz3 4
[ "$status" -eq 1 ]
}
@test "raid_is_valid: raidz3 + 5 disks = valid" {
run raid_is_valid raidz3 5
[ "$status" -eq 0 ]
}
@test "raid_is_valid: unknown level = invalid" {
run raid_is_valid raidz99 5
[ "$status" -eq 1 ]
}
#############################
# raid_usable_bytes
#############################
@test "raid_usable_bytes: mirror returns smallest disk's bytes" {
run raid_usable_bytes mirror 3 100 300
[ "$status" -eq 0 ]
[ "$output" = "100" ]
}
@test "raid_usable_bytes: stripe returns total bytes" {
run raid_usable_bytes stripe 3 100 300
[ "$status" -eq 0 ]
[ "$output" = "300" ]
}
@test "raid_usable_bytes: raidz1 = (n-1) * smallest" {
run raid_usable_bytes raidz1 3 100 300
[ "$status" -eq 0 ]
[ "$output" = "200" ]
}
@test "raid_usable_bytes: raidz2 = (n-2) * smallest" {
run raid_usable_bytes raidz2 4 100 400
[ "$status" -eq 0 ]
[ "$output" = "200" ]
}
@test "raid_usable_bytes: raidz3 = (n-3) * smallest" {
run raid_usable_bytes raidz3 5 100 500
[ "$status" -eq 0 ]
[ "$output" = "200" ]
}
@test "raid_usable_bytes: mixed-size mirror honors smallest (not average)" {
run raid_usable_bytes mirror 3 80 300
[ "$status" -eq 0 ]
[ "$output" = "80" ]
}
@test "raid_usable_bytes: unknown level returns status 1" {
run raid_usable_bytes bogus 3 100 300
[ "$status" -eq 1 ]
[ -z "$output" ]
}
#############################
# raid_fault_tolerance
#############################
@test "raid_fault_tolerance: mirror of 3 = can lose 2" {
run raid_fault_tolerance mirror 3
[ "$output" = "2" ]
}
@test "raid_fault_tolerance: mirror of 5 = can lose 4" {
run raid_fault_tolerance mirror 5
[ "$output" = "4" ]
}
@test "raid_fault_tolerance: stripe = 0" {
run raid_fault_tolerance stripe 4
[ "$output" = "0" ]
}
@test "raid_fault_tolerance: raidz1/2/3 = 1/2/3 regardless of disk count" {
[ "$(raid_fault_tolerance raidz1 3)" = "1" ]
[ "$(raid_fault_tolerance raidz1 8)" = "1" ]
[ "$(raid_fault_tolerance raidz2 4)" = "2" ]
[ "$(raid_fault_tolerance raidz3 5)" = "3" ]
}
@test "raid_fault_tolerance: unknown level returns status 1" {
run raid_fault_tolerance bogus 3
[ "$status" -eq 1 ]
}
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