exercism/elixir/community-garden/test/community_garden_test.exs

132 lines
3.9 KiB
Elixir

defmodule CommunityGardenTest do
use ExUnit.Case
@tag task_id: 1
test "start returns an alive pid" do
assert {:ok, pid} = CommunityGarden.start()
assert Process.alive?(pid)
end
@tag task_id: 2
test "when started, the registry is empty" do
assert {:ok, pid} = CommunityGarden.start()
assert [] == CommunityGarden.list_registrations(pid)
end
@tag task_id: 3
test "can register a new plot" do
assert {:ok, pid} = CommunityGarden.start()
assert %Plot{} = CommunityGarden.register(pid, "Johnny Appleseed")
end
@tag task_id: 3
test "maintains a registry of plots" do
assert {:ok, pid} = CommunityGarden.start()
assert %Plot{} = plot = CommunityGarden.register(pid, "Johnny Appleseed")
assert [plot] == CommunityGarden.list_registrations(pid)
end
@tag task_id: 3
test "the first plot has an id of 1" do
assert {:ok, pid} = CommunityGarden.start()
plot = CommunityGarden.register(pid, "Johnny Appleseed")
assert plot.plot_id == 1
end
@tag task_id: 3
test "registered plots have incremental unique id" do
assert {:ok, pid} = CommunityGarden.start()
plot_1 = CommunityGarden.register(pid, "Johnny Appleseed")
plot_2 = CommunityGarden.register(pid, "Frederick Law Olmsted")
plot_3 = CommunityGarden.register(pid, "Lancelot (Capability) Brown")
assert plot_1.plot_id == 1
assert plot_2.plot_id == 2
assert plot_3.plot_id == 3
end
@tag task_id: 3
test "registered plots have incremental unique id when registered concurrently" do
{:ok, pid} = CommunityGarden.start()
total_plots = 20
test_process_pid = self()
Enum.each(1..total_plots, fn n ->
spawn(fn ->
plot = CommunityGarden.register(pid, "Mary Bumblebee #{n}")
send(test_process_pid, {n, plot})
end)
end)
plot_ids =
Enum.map(1..total_plots, fn n ->
receive do
{^n, plot} -> plot.plot_id
after
100 -> nil
end
end)
assert Enum.sort(plot_ids) == Enum.to_list(1..total_plots)
end
@tag task_id: 4
test "can release a plot" do
assert {:ok, pid} = CommunityGarden.start()
assert %Plot{} = plot = CommunityGarden.register(pid, "Johnny Appleseed")
assert :ok = CommunityGarden.release(pid, plot.plot_id)
assert [] == CommunityGarden.list_registrations(pid)
end
@tag task_id: 4
test "do not re-use id of released plots" do
assert {:ok, pid} = CommunityGarden.start()
plot_1 = CommunityGarden.register(pid, "Keanu Reeves")
plot_2 = CommunityGarden.register(pid, "Thomas A. Anderson")
assert plot_1.plot_id == 1
assert plot_2.plot_id == 2
CommunityGarden.release(pid, plot_1.plot_id)
CommunityGarden.release(pid, plot_2.plot_id)
plot_3 = CommunityGarden.register(pid, "John Doe")
plot_4 = CommunityGarden.register(pid, "Jane Doe")
assert plot_3.plot_id == 3
assert plot_4.plot_id == 4
end
@tag task_id: 4
test "release only one plot at time" do
assert {:ok, pid} = CommunityGarden.start()
plot_1 = CommunityGarden.register(pid, "Keanu Reeves")
plot_2 = CommunityGarden.register(pid, "Thomas A. Anderson")
assert plot_1.plot_id == 1
assert plot_2.plot_id == 2
CommunityGarden.release(pid, plot_1.plot_id)
assert [^plot_2] = CommunityGarden.list_registrations(pid)
end
@tag task_id: 5
test "can get registration of a registered plot" do
assert {:ok, pid} = CommunityGarden.start()
assert %Plot{} = plot = CommunityGarden.register(pid, "Johnny Appleseed")
assert %Plot{} = registered_plot = CommunityGarden.get_registration(pid, plot.plot_id)
assert registered_plot.plot_id == plot.plot_id
assert registered_plot.registered_to == "Johnny Appleseed"
end
@tag task_id: 5
test "return not_found when attempt to get registration of an unregistered plot" do
assert {:ok, pid} = CommunityGarden.start()
assert {:not_found, "plot is unregistered"} = CommunityGarden.get_registration(pid, 1)
end
end