huskies: merge 1176 bug base_branch fallback hardcodes master instead of auto-detecting

2026-07-16 16:22:46 +00:00
parent a4e2d4bc25
commit efd0097f76
11 changed files with 301 additions and 50 deletions
@@ -178,6 +178,79 @@ async fn squash_merge_clean_merge_succeeds() {
    );
 }

+#[tokio::test]
+async fn squash_merge_succeeds_on_main_based_repo_with_base_branch_unset() {
+    use std::fs;
+    use tempfile::tempdir;
+
+    let tmp = tempdir().unwrap();
+    let repo = tmp.path();
+
+    // Repo whose default branch is `main` — no `master` branch exists at all,
+    // and no `.huskies/project.toml` sets `base_branch`. run_squash_merge must
+    // auto-detect `main` instead of assuming `master` (bug 1176).
+    Command::new("git")
+        .args(["init", "-b", "main"])
+        .current_dir(repo)
+        .output()
+        .unwrap();
+    Command::new("git")
+        .args(["config", "user.email", "test@test.com"])
+        .current_dir(repo)
+        .output()
+        .unwrap();
+    Command::new("git")
+        .args(["config", "user.name", "Test"])
+        .current_dir(repo)
+        .output()
+        .unwrap();
+    Command::new("git")
+        .args(["commit", "--allow-empty", "-m", "init"])
+        .current_dir(repo)
+        .output()
+        .unwrap();
+
+    Command::new("git")
+        .args(["checkout", "-b", "feature/story-main_test"])
+        .current_dir(repo)
+        .output()
+        .unwrap();
+    fs::write(repo.join("new_file.txt"), "new content").unwrap();
+    Command::new("git")
+        .args(["add", "."])
+        .current_dir(repo)
+        .output()
+        .unwrap();
+    Command::new("git")
+        .args(["commit", "-m", "add new file"])
+        .current_dir(repo)
+        .output()
+        .unwrap();
+
+    Command::new("git")
+        .args(["checkout", "main"])
+        .current_dir(repo)
+        .output()
+        .unwrap();
+
+    let result = run_squash_merge(repo, "feature/story-main_test", "main_test").unwrap();
+
+    assert!(
+        matches!(
+            result,
+            super::MergeResult::Success {
+                conflicts_resolved: false,
+                ..
+            }
+        ),
+        "clean merge should succeed on a main-based repo; got: {result:?}"
+    );
+    assert!(
+        repo.join("new_file.txt").exists(),
+        "merged file should exist on main"
+    );
+}
+
 #[tokio::test]
 async fn squash_merge_nonexistent_branch_fails() {
    use tempfile::tempdir;