diff options
Diffstat (limited to 'tests')
| -rw-r--r-- | tests/unit/test_raid.bats | 199 |
1 files changed, 199 insertions, 0 deletions
diff --git a/tests/unit/test_raid.bats b/tests/unit/test_raid.bats new file mode 100644 index 0000000..4e2f842 --- /dev/null +++ b/tests/unit/test_raid.bats @@ -0,0 +1,199 @@ +#!/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 ] +} |