From 0d28c28a85582d2b7104f2caefe0c56f5062c578 Mon Sep 17 00:00:00 2001
From: kballou <kballou@devnulllabs.io>
Date: Tue, 21 Oct 2014 18:05:37 -0600
Subject: Add some basic tests for pool scheduler

---
 test/poolparty_test.exs | 60 +++++++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 58 insertions(+), 2 deletions(-)

diff --git a/test/poolparty_test.exs b/test/poolparty_test.exs
index 761c433..6e66bda 100644
--- a/test/poolparty_test.exs
+++ b/test/poolparty_test.exs
@@ -1,3 +1,59 @@
-defmodule PoolpartyTest do
-  use ExUnit.Case
+defmodule PoolPartyTest do
+  use ExUnit.Case, aysnc: false
+
+  setup do
+    {:ok, pool} = PoolParty.start(nil, nil)
+    on_exit(pool, fn -> Application.stop(pool) end)
+    {:ok, pool: pool}
+  end
+
+  test "pool can perform work", %{pool: _} do
+    :timer.sleep(100)
+    [:ok, :ok, :ok, :ok, :ok, :ok, :ok, :ok] =
+    (1..8) |>
+    Enum.map(fn(x) -> PoolParty.Scheduler.process(&(&1*&1), x, self()) end)
+    :timer.sleep(100)
+    state = :sys.get_state(PoolParty.Scheduler)
+    assert_receive {:result, 1}
+    assert_receive {:result, 4}
+    assert_receive {:result, 9}
+    assert_receive {:result, 16}
+    assert_receive {:result, 25}
+    assert_receive {:result, 36}
+    assert_receive {:result, 49}
+    assert_receive {:result, 64}
+    assert(state.max_pool_size == Application.get_env(:poolparty, :pool_size))
+    assert(length(state.queue) == 0)
+  end
+
+  test "pool queues work when full", %{pool: _} do
+    :timer.sleep(100)
+    (1..16) |>
+    Enum.map(fn(x) ->
+      PoolParty.Scheduler.process(
+        fn(x) ->
+          :timer.sleep(100)
+          x
+        end,
+      x, self()) end)
+    state = :sys.get_state(PoolParty.Scheduler)
+    assert(length(state.queue) == 8)
+    assert(HashDict.size(state.processing) == 8)
+  end
+
+  test "pool can handle worker leaving", %{pool: _} do
+    :timer.sleep(100)
+    PoolParty.Scheduler.process(fn(_)-> exit(:kill) end, [], self())
+    assert(HashDict.size(:sys.get_state(PoolParty.Scheduler).processing) == 1)
+    :timer.sleep(100)
+    state = :sys.get_state(PoolParty.Scheduler)
+    assert_receive {:result, :failed}
+    assert(length(state.workers) == 8)
+    assert(HashDict.size(state.processing) == 0)
+  end
+
+  test "pool handles leaving process without fail", %{pool: _} do
+    :timer.sleep(100)
+    PoolParty.Scheduler.leave(self())
+  end
 end
-- 
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