Test FlakeID old id compat & Ecto type

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href 2019-01-15 16:18:18 +01:00
parent 28d77e373c
commit 9d63b27dcd
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2 changed files with 47 additions and 0 deletions

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@ -1,3 +1,7 @@
# Pleroma: A lightweight social networking server
# Copyright © 2017-2018 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.FlakeId do
@moduledoc """
Flake is a decentralized, k-ordered id generation service.
@ -38,6 +42,8 @@ defmodule Pleroma.FlakeId do
def from_string(unquote(Kernel.to_string(i))), do: <<0::integer-size(128)>>
end
def from_string(flake = <<_::integer-size(128)>>), do: flake
def from_string(string) when is_binary(string) and byte_size(string) < 18 do
case Integer.parse(string) do
{id, _} -> <<0::integer-size(64), id::integer-size(64)>>

41
test/flake_id_test.exs Normal file
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@ -0,0 +1,41 @@
# Pleroma: A lightweight social networking server
# Copyright © 2017-2018 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.FlakeIdTest do
use Pleroma.DataCase
import Kernel, except: [to_string: 1]
import Pleroma.FlakeId
describe "fake flakes (compatibility with older serial integers)" do
test "from_string/1" do
fake_flake = <<0::integer-size(64), 42::integer-size(64)>>
assert from_string("42") == fake_flake
end
test "zero or -1 is a null flake" do
fake_flake = <<0::integer-size(128)>>
assert from_string("0") == fake_flake
assert from_string("-1") == fake_flake
end
test "to_string/1" do
fake_flake = <<0::integer-size(64), 42::integer-size(64)>>
assert to_string(fake_flake) == "42"
end
end
test "ecto type behaviour" do
flake = <<0, 0, 1, 104, 80, 229, 2, 235, 140, 22, 69, 201, 53, 210, 0, 0>>
flake_s = "9eoozpwTul5mjSEDRI"
assert cast(flake) == {:ok, flake_s}
assert cast(flake_s) == {:ok, flake_s}
assert load(flake) == {:ok, flake_s}
assert load(flake_s) == {:ok, flake_s}
assert dump(flake_s) == {:ok, flake}
assert dump(flake) == {:ok, flake}
end
end