Inline helper.is_enabled, remove unused code, documentation fixes, remove formats and druid_input files, add more tests

test/tests/test_back_handler.lua

@@ -0,0 +1,40 @@
+local mock_gui = require "deftest.mock.gui"
+local mock_time = require("deftest.mock.time")
+local mock_input = require("test.helper.mock_input")
+local test_helper = require("test.helper.test_helper")
+local druid_system = require("druid.druid")
+
+return function()
+	local druid = nil
+	local context = test_helper.get_context()
+	describe("Back Handler component", function()
+		before(function()
+			mock_gui.mock()
+			mock_time.mock()
+			mock_time.set(60)
+			druid = druid_system.new(context)
+		end)
+
+		after(function()
+			mock_gui.unmock()
+			mock_time.unmock()
+			druid:final(context)
+			druid = nil
+		end)
+
+		it("Should react on back action id with custom args", function()
+			local on_back_handler, on_back_handler_mock = test_helper.get_function()
+			druid:new_back_handler(on_back_handler, { args = "custom" })
+
+			druid:on_input(mock_input.key_pressed("key_back"))
+			druid:on_input(mock_input.key_released("key_back"))
+			assert(on_back_handler_mock.calls == 1)
+			assert(on_back_handler_mock.params[1] == context)
+			assert(on_back_handler_mock.params[2].args  == "custom")
+
+			druid:on_input(mock_input.key_pressed("key_a"))
+			druid:on_input(mock_input.key_released("key_a"))
+			assert(on_back_handler_mock.calls == 1)
+		end)
+	end)
+end