restore Mock.checkout function

lib/gogs.ex

@@ -116,14 +116,13 @@ defmodule Gogs do
   """ 
   @spec local_branch_create(String.t(), String.t()) :: {:ok, map} | {:error, any}
   def local_branch_create(repo_name, _branch_name \\ "draft") do
-    # inject_git().checkout(local_git_repo(repo_name), ~w(-b draft))
-    Git.checkout(local_git_repo(repo_name), ~w(-b draft))
+    inject_git().checkout(local_git_repo(repo_name), ~w(-b draft))
   end
 
   @spec local_file_write_text(String.t(), String.t(), String.t()) :: :ok | {:error, any}
   def local_file_write_text(repo_name, file_name, text) do
     file_path = Path.join([local_repo_path(repo_name), file_name])
-    # IO.inspect("attempting to write to #{file_path}")
+    # Logger.info("attempting to write to #{file_path}")
     File.touch!(file_path)
     File.write(file_path, text)
   end

test/gogs_test.exs

@@ -62,7 +62,7 @@ defmodule GogsTest do
     delete_local_directory(repo)
   end
 
-  test "Gogs.clone error branch" do
+  test "Gogs.clone error (simulate unhappy path)" do
     repo = "error"
     org = "nelsonic"
     git_repo_url = GogsHelpers.remote_url_ssh(org, repo)
@@ -73,12 +73,16 @@ defmodule GogsTest do
 
   test "local_branch_create/1 creates a new branch on the localhost" do
     repo_name = create_test_git_repo("myorg")
+    # delete before if exists:
+    Git.branch(GogsHelpers.local_git_repo(repo_name), ~w(-D draft))
+
     {:ok, res} = Gogs.local_branch_create(repo_name, "draft")
     assert res == "Switched to a new branch 'draft'\n"
 
     # Cleanup!
     Gogs.remote_repo_delete("myorg", repo_name)
     delete_local_directory(repo_name)
+    Git.branch(GogsHelpers.local_git_repo(repo_name), ~w(-D draft))
   end