(45.1%) set io mode tests

farmbot_os/test/farmbot_os/syscalls/set_pin_io_mode_test.exs

@@ -0,0 +1,33 @@
+defmodule FarmbotOS.SysCalls.SetPinIOModeTest do
+  use ExUnit.Case, async: true
+  use Mimic
+
+  setup :verify_on_exit!
+
+  alias FarmbotOS.SysCalls.SetPinIOMode
+
+  test "set_pin_io_mode" do
+    modes = %{
+      1 => 0x2,
+      2 => 0x0,
+      3 => 0x1,
+      4 => 0x0,
+      5 => 0x1,
+      6 => 0x2
+    }
+
+    expect(FarmbotFirmware, :command, 6, fn
+      {:pin_mode_write, [p: pin_number, m: actual_mode]} ->
+        expected_mode = Map.fetch!(modes, pin_number)
+        assert expected_mode == actual_mode
+        :ok
+    end)
+
+    SetPinIOMode.set_pin_io_mode(1, "input_pullup")
+    SetPinIOMode.set_pin_io_mode(2, "input")
+    SetPinIOMode.set_pin_io_mode(3, "output")
+    SetPinIOMode.set_pin_io_mode(4, 0x0)
+    SetPinIOMode.set_pin_io_mode(5, 0x1)
+    SetPinIOMode.set_pin_io_mode(6, 0x2)
+  end
+end