(15.7%) Test cases for erroneous command()s

farmbot_firmware/.gitignore

@@ -3,6 +3,7 @@
 
 # If you run "mix test --cover", coverage assets end up here.
 /cover/
+*.coverdata
 
 # The directory Mix downloads your dependencies sources to.
 /deps/
@@ -23,4 +24,4 @@ erl_crash.dump
 farmbot_firmware-*.tar
 
 # Ignore vcr files
-*.txt
+*.txt

farmbot_firmware/test/farmbot_firmware/command_test.exs

@@ -4,18 +4,33 @@ defmodule FarmbotFirmware.CommandTest do
   setup :verify_on_exit!
   alias FarmbotFirmware.Command
   import ExUnit.CaptureLog
-  @mod FarmbotFirmware.Command
+  @subject FarmbotFirmware.Command
+
+  def firmware_server do
+    arg = [transport: FarmbotFirmware.StubTransport]
+    {:ok, pid} = FarmbotFirmware.start_link(arg, [])
+    pid
+  end
+
+  test "command(), error with tag" do
+    assert {:error, _} = @subject.command(firmware_server(), {:x, {:y, :z}})
+  end
+
+  test "command(), error no tag" do
+    assert {:error, _} = @subject.command(firmware_server(), {:x, :z})
+  end
 
   test "enable_debug_logs" do
-    Application.put_env(:farmbot_firmware, @mod, foo: :bar, debug_log: false)
-    old_env = Application.get_env(:farmbot_firmware, @mod)
+    Application.put_env(:farmbot_firmware, @subject, foo: :bar, debug_log: false)
+
+    old_env = Application.get_env(:farmbot_firmware, @subject)
 
     assert false == Keyword.fetch!(old_env, :debug_log)
     assert :bar == Keyword.fetch!(old_env, :foo)
-    assert false == @mod.debug?()
+    assert false == @subject.debug?()
 
     refute capture_log(fn ->
-             @mod.debug_log("Never Shown")
+             @subject.debug_log("Never Shown")
            end) =~ "Never Shown"
 
     # === Change ENV settings
@@ -23,24 +38,24 @@ defmodule FarmbotFirmware.CommandTest do
              Command.enable_debug_logs()
 
     assert capture_log(fn ->
-             @mod.debug_log("Good!")
+             @subject.debug_log("Good!")
            end) =~ "Good!"
 
-    assert true == @mod.debug?()
-    new_env = Application.get_env(:farmbot_firmware, @mod)
+    assert true == @subject.debug?()
+    new_env = Application.get_env(:farmbot_firmware, @subject)
     assert true == Keyword.fetch!(new_env, :debug_log)
     assert :bar == Keyword.fetch!(new_env, :foo)
 
     # === And back again
     assert :ok == Command.disable_debug_logs()
-    even_newer = Application.get_env(:farmbot_firmware, @mod)
+    even_newer = Application.get_env(:farmbot_firmware, @subject)
 
     assert false == Keyword.fetch!(even_newer, :debug_log)
     assert :bar == Keyword.fetch!(even_newer, :foo)
-    assert false == @mod.debug?()
+    assert false == @subject.debug?()
 
     refute capture_log(fn ->
-             @mod.debug_log("Also Never Shown")
+             @subject.debug_log("Also Never Shown")
            end) =~ "Also Never Shown"
   end
 end