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test(lanes): initialize worktree fixture on main #158

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3d068c9
test(lanes): initialize worktree fixture on main
KooshaPari Aug 28, 2026
6822d26
test(worktree): support legacy Git default branches
KooshaPari Aug 28, 2026
2e51392
fix(test): preserve worktree fixture fallback details
KooshaPari Aug 28, 2026
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33 changes: 30 additions & 3 deletions apps/runtime/tests/lanes/worktree.test.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -27,13 +27,40 @@ function createTempGitRepo(): string {
const dir = fs.mkdtempSync(path.join(os.tmpdir(), "helios-wt-test-"));
tmpDirs.push(dir);

// Initialize a git repo with an initial commit
Bun.spawnSync(["git", "init"], { cwd: dir });
// Prefer Git 2.28+ initial-branch support; retain an explicit legacy fallback.
const modernInit = Bun.spawnSync(["git", "init", "--initial-branch=main"], { cwd: dir });
const needsBranchRename = !modernInit.success;
if (needsBranchRename) {
const fallbackInit = Bun.spawnSync(["git", "init"], { cwd: dir });
if (!fallbackInit.success) {
const reason = new TextDecoder().decode(fallbackInit.stderr).trim();
throw new Error(
`Unable to initialize temporary Git repository with fallback \`git init\`: ${reason || `exit ${fallbackInit.exitCode}`}`,
);
}
}

Bun.spawnSync(["git", "config", "user.email", "test@test.com"], { cwd: dir });
Bun.spawnSync(["git", "config", "user.name", "Test"], { cwd: dir });
fs.writeFileSync(path.join(dir, "README.md"), "# test repo\n");
Bun.spawnSync(["git", "add", "."], { cwd: dir });
Bun.spawnSync(["git", "commit", "-m", "initial"], { cwd: dir });
const initialCommit = Bun.spawnSync(["git", "commit", "-m", "initial"], { cwd: dir });
if (!initialCommit.success) {
const reason = new TextDecoder().decode(initialCommit.stderr).trim();
throw new Error(
`Unable to create initial temporary Git commit: ${reason || `exit ${initialCommit.exitCode}`}`,
);
}

if (needsBranchRename) {
const renameBranch = Bun.spawnSync(["git", "branch", "-M", "main"], { cwd: dir });
if (!renameBranch.success) {
const reason = new TextDecoder().decode(renameBranch.stderr).trim();
throw new Error(
`Unable to rename temporary Git branch to main: ${reason || `exit ${renameBranch.exitCode}`}`,
);
}
}

return dir;
}
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