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test: tighten git root helper coverage

This commit is contained in:
Peter Steinberger 2026-03-13 18:53:02 +00:00
parent 30dbd1a598
commit cf39c03801
1 changed files with 20 additions and 0 deletions
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20
src/infra/git-root.test.ts
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@ -9,6 +9,15 @@ async function makeTempDir(label: string): Promise<string> {
}
describe("git-root", () => {
it("finds git root when starting at the repo root itself", async () => {
const temp = await makeTempDir("git-root-self");
const repoRoot = path.join(temp, "repo");
await fs.mkdir(path.join(repoRoot, ".git"), { recursive: true });
expect(findGitRoot(repoRoot)).toBe(repoRoot);
expect(resolveGitHeadPath(repoRoot)).toBe(path.join(repoRoot, ".git", "HEAD"));
});
it("finds git root and HEAD path when .git is a directory", async () => {
const temp = await makeTempDir("git-root-dir");
const repoRoot = path.join(temp, "repo");
@ -56,4 +65,15 @@ describe("git-root", () => {
expect(findGitRoot(nested, { maxDepth: 2 })).toBeNull();
expect(resolveGitHeadPath(nested, { maxDepth: 2 })).toBeNull();
});
it("returns null for HEAD lookup when only an invalid .git file exists", async () => {
const temp = await makeTempDir("git-root-invalid-only");
const repoRoot = path.join(temp, "repo");
const nested = path.join(repoRoot, "nested");
await fs.mkdir(nested, { recursive: true });
await fs.writeFile(path.join(repoRoot, ".git"), "not-a-gitdir-pointer\n", "utf-8");
expect(findGitRoot(nested)).toBe(repoRoot);
expect(resolveGitHeadPath(nested)).toBeNull();
});
});