Merge pull request #165 from sh-at-cs/fix-gh-164-explicit-branch-name

Init test repo with explicit branch

Author: tummychow

src/tests/repo_utils.rs

@@ -15,7 +15,11 @@ impl Context {
 /// Prepare a fresh git repository with an initial commit and a file.
 pub fn prepare_repo() -> (Context, PathBuf) {
     let dir = tempfile::tempdir().unwrap();
-    let repo = git2::Repository::init(dir.path()).unwrap();
+    let repo = git2::Repository::init_opts(
+        dir.path(),
+        git2::RepositoryInitOptions::new().initial_head("master"),
+    )
+    .unwrap();
     become_author(&repo, "nobody", "[email protected]");
 
     let path = PathBuf::from("test-file.txt");