122 lines
4.7 KiB
Elixir
122 lines
4.7 KiB
Elixir
defmodule ProxmoxAgent.Collectors.ZfsTest do
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use ExUnit.Case, async: true
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alias ProxmoxAgent.Collectors.Zfs
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@fixtures Path.expand("../../fixtures/zfs", __DIR__)
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defp fake_runner do
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fn
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"zpool", ["list", "-j", "--json-int"] ->
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{:ok, File.read!(Path.join(@fixtures, "zpool_list.json"))}
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"zpool", ["status", "-j", "--json-flat-vdevs", "--json-int"] ->
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{:ok, File.read!(Path.join(@fixtures, "zpool_status.json"))}
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"zfs", ["list", "-j", "--json-int", "-t", "all"] ->
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{:ok, File.read!(Path.join(@fixtures, "zfs_list.json"))}
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end
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end
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describe "collect_pools/1" do
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test "returns a summary per pool" do
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sample = Zfs.collect_pools(runner: fake_runner())
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assert is_list(sample.pools)
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assert length(sample.pools) == 2
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rpool = Enum.find(sample.pools, &(&1.name == "rpool"))
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tank = Enum.find(sample.pools, &(&1.name == "tank"))
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assert rpool.health == "ONLINE"
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assert rpool.capacity_percent == 40
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assert rpool.fragmentation_percent == 17
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assert rpool.size_bytes == 500_000_000_000
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assert rpool.error_count == 0
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assert rpool.degraded_vdev_count == 0
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assert rpool.pool_type == "mirror"
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assert rpool.scan_function == "scrub"
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assert rpool.scan_state == "FINISHED"
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assert [%{name: "mirror-0", type: "mirror", state: "ONLINE",
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read_errors: 0, write_errors: 0, checksum_errors: 0}] = rpool.vdevs
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assert tank.health == "DEGRADED"
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assert tank.error_count == 2
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assert tank.degraded_vdev_count == 1
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assert tank.pool_type == "raidz2"
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assert tank.scan_state == "SCANNING"
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assert [%{name: "raidz2-0", type: "raidz2", state: "DEGRADED",
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checksum_errors: 2}] = tank.vdevs
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end
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test "populates errors list when zpool fails" do
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failing = fn _, _ -> {:error, {:enoent, "zpool"}} end
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sample = Zfs.collect_pools(runner: failing)
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assert sample.pools == []
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assert length(sample.errors) >= 1
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end
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test "classifies pool_type for stripe, mixed, and special vdevs" do
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list_json =
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Jason.encode!(%{
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"pools" => %{
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"stripe" => %{"name" => "stripe", "size" => 1, "alloc" => 0, "free" => 1,
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"frag" => 0, "cap" => 0, "health" => "ONLINE"},
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"mixed" => %{"name" => "mixed", "size" => 1, "alloc" => 0, "free" => 1,
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"frag" => 0, "cap" => 0, "health" => "ONLINE"},
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"mirror_with_log" => %{"name" => "mirror_with_log", "size" => 1, "alloc" => 0, "free" => 1,
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"frag" => 0, "cap" => 0, "health" => "ONLINE"}
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}
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})
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vdev = fn name, type ->
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{name, %{"name" => name, "vdev_type" => type, "state" => "ONLINE",
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"read_errors" => "0", "write_errors" => "0", "checksum_errors" => "0"}}
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end
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status_json =
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Jason.encode!(%{
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"pools" => %{
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"stripe" => %{
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"name" => "stripe", "state" => "ONLINE", "error_count" => "0",
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"vdevs" => Map.new([vdev.("sda", "disk"), vdev.("sdb", "disk")])
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},
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"mixed" => %{
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"name" => "mixed", "state" => "ONLINE", "error_count" => "0",
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"vdevs" => Map.new([vdev.("mirror-0", "mirror"), vdev.("raidz1-1", "raidz1")])
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},
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"mirror_with_log" => %{
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"name" => "mirror_with_log", "state" => "ONLINE", "error_count" => "0",
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"vdevs" => Map.new([vdev.("mirror-0", "mirror"), vdev.("log-0", "log")])
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}
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}
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})
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runner = fn
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"zpool", ["list" | _] -> {:ok, list_json}
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"zpool", ["status" | _] -> {:ok, status_json}
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end
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sample = Zfs.collect_pools(runner: runner)
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by_name = Map.new(sample.pools, &{&1.name, &1})
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assert by_name["stripe"].pool_type == "stripe"
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assert by_name["mixed"].pool_type == "mixed"
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assert by_name["mirror_with_log"].pool_type == "mirror"
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# log vdev is retained in the per-pool vdevs list even though it's ignored for layout classification
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assert Enum.any?(by_name["mirror_with_log"].vdevs, &(&1.type == "log"))
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end
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end
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describe "collect_datasets/1" do
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test "returns datasets and per-dataset snapshot summary" do
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sample = Zfs.collect_datasets(runner: fake_runner())
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assert length(sample.datasets) == 2
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rpool_data = Enum.find(sample.datasets, &(&1.name == "rpool/data"))
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assert rpool_data.used_bytes == 100_000_000_000
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assert rpool_data.usedbysnapshots_bytes == 2_000_000_000
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assert rpool_data.snapshot_count == 2
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assert rpool_data.newest_snapshot_unix == 1_745_193_600
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assert rpool_data.oldest_snapshot_unix == 1_745_107_200
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end
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end
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end
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