grep "Needed a single revision" output.txt
'
+test_expect_success '--initial-branch' '
+ git init --initial-branch=hello initial-branch-option &&
+ git -C initial-branch-option symbolic-ref HEAD >actual &&
+ echo refs/heads/hello >expect &&
+ test_cmp expect actual &&
+
+ : re-initializing should not change the branch name &&
+ git init --initial-branch=ignore initial-branch-option 2>err &&
+ test_i18ngrep "ignored --initial-branch" err &&
+ git -C initial-branch-option symbolic-ref HEAD >actual &&
+ grep hello actual
+'
+
+test_expect_success 'overridden default initial branch name (config)' '
+ test_config_global init.defaultBranch nmb &&
+ git init initial-branch-config &&
+ git -C initial-branch-config symbolic-ref HEAD >actual &&
+ grep nmb actual
+'
+
+test_expect_success 'invalid default branch name' '
+ test_config_global init.defaultBranch "with space" &&
+ test_must_fail git init initial-branch-invalid 2>err &&
+ test_i18ngrep "invalid branch name" err
+'
+
test_done