Deleting a branch deletes its reflog

src/branch.c

@@ -111,6 +111,9 @@ int git_branch_delete(git_reference *branch)
 	if (git_reference_delete(branch) < 0)
 		goto on_error;
 
+	if (git_reflog_delete(git_reference_owner(branch), git_reference_name(branch)) < 0)
+		goto on_error;
+
 	error = 0;
 
 on_error:

tests/refs/branches/create.c

@@ -87,23 +87,3 @@ void test_refs_branches_create__creation_creates_new_reflog(void)
 	entry = git_reflog_entry_byindex(log, 0);
 	cl_assert_equal_s("create!", git_reflog_entry_message(entry));
 }
-
-void test_refs_branches_create__recreation_updates_existing_reflog(void)
-{
-	git_reflog *log;
-	const git_reflog_entry *entry1, *entry2;
-
-	retrieve_known_commit(&target, repo);
-
-	cl_git_pass(git_branch_create(&branch, repo, NEW_BRANCH_NAME, target, false, NULL, "Create 1"));
-	cl_git_pass(git_branch_delete(branch));
-	cl_git_pass(git_branch_create(&branch, repo, NEW_BRANCH_NAME, target, false, NULL, "Create 2"));
-	cl_git_pass(git_reflog_read(&log, repo, "refs/heads/" NEW_BRANCH_NAME));
-
-	cl_assert_equal_i(2, git_reflog_entrycount(log));
-	entry1 = git_reflog_entry_byindex(log, 1);
-	entry2 = git_reflog_entry_byindex(log, 0);
-	cl_assert_equal_s("Create 1", git_reflog_entry_message(entry1));
-	cl_assert_equal_s("Create 2", git_reflog_entry_message(entry2));
-}
-

tests/refs/branches/delete.c

@@ -115,3 +115,29 @@ void test_refs_branches_delete__deleting_a_branch_removes_related_configuration_
 	assert_config_entry_existence(repo, "branch.track-local.remote", false);
 	assert_config_entry_existence(repo, "branch.track-local.merge", false);
 }
+
+void test_refs_branches_delete__removes_reflog(void)
+{
+	git_reference *branch;
+	git_reflog *log;
+	git_oid oidzero = {{0}};
+	git_signature *sig;
+
+	/* Ensure the reflog has at least one entry */
+	cl_git_pass(git_signature_now(&sig, "Me", "user@example.com"));
+	cl_git_pass(git_reflog_read(&log, repo, "refs/heads/track-local"));
+	cl_git_pass(git_reflog_append(log, &oidzero, sig, "message"));
+	cl_assert(git_reflog_entrycount(log) > 0);
+	git_signature_free(sig);
+	git_reflog_free(log);
+
+	cl_git_pass(git_branch_lookup(&branch, repo, "track-local", GIT_BRANCH_LOCAL));
+	cl_git_pass(git_branch_delete(branch));
+	git_reference_free(branch);
+
+	/* Reading a nonexistant reflog creates it, but it should be empty */
+	cl_git_pass(git_reflog_read(&log, repo, "refs/heads/track-local"));
+	cl_assert_equal_i(0, git_reflog_entrycount(log));
+	git_reflog_free(log);
+}
+