defmodule EyeDrops.TasksTest do
	use ExUnit.Case
	import ExUnit.CaptureIO

	setup do
		tasks = [%{
			id: :demo1,
			name: "demo1",
			cmd: "echo demo1",
			paths: ["lib/*"]
		},
		%{
			id: :demo2,
			name: "demo2",
			cmd: "echo demo2",
			paths: ["lib/*"]
		}]
		{:ok, %{:tasks => tasks}}
	end

	test "Get tasks from the config with a list of ids" do
		task_ids = [:unit_tests, :acceptance]
		tasks = EyeDrops.Tasks.get(task_ids)
		assert Enum.all?(tasks, fn task -> task.id in task_ids end)
	end

	test "Get all tasks from the config" do
		task_ids = [:unit_tests, :acceptance]
		tasks = EyeDrops.Tasks.get()
		assert Enum.all?(tasks, fn task -> task.id in task_ids end)
	end

	test "Raise an exception if no tasks returned" do
		assert_raise TasksError, "No tasks found", fn -> 
      EyeDrops.Tasks.get([])
    end
	end

	# mock get config with empty tasks

	test "Get tasks to run if expected file has changed", %{:tasks => tasks} do
		tasks = EyeDrops.Tasks.to_run(tasks, "some/path/lib/eye_drops.ex")
		assert Enum.at(tasks,0).id == :demo1
	end

	test "No tasks to run" do
		assert EyeDrops.Tasks.exec([]) == :ok
	end

	test "Run one task with expected output", %{:tasks => tasks} do
		task = Enum.at(tasks,0)
		printed = capture_io(fn ->
				EyeDrops.Tasks.exec([task])
		end)
		assert String.contains?(printed, ["Running", task.name, "Finished"])
	end

	test "Run expected tasks with expected output", %{:tasks => tasks} do
		printed = capture_io(fn ->
				EyeDrops.Tasks.exec(tasks)
		end)
		task1 = Enum.at(tasks,0)
		task2 = Enum.at(tasks,1)
		assert String.contains?(printed, ["Running", task1.name, task2.name, "Finished"])
	end
end