gstack/test/gbrain-source-gitignore.tes...

97 lines
3.3 KiB
TypeScript

/**
* Unit tests for the `.gbrain-source` gitignore append done by
* `runCodeImport` after a successful `gbrain sources attach`.
*
* Covers #1384: v1.29.0.0 changelog promised the per-worktree pin would be
* ignored in the consuming repo, but the change actually only added
* `.gbrain-source` to gstack's own `.gitignore`. Without the consumer-side
* entry, Conductor sibling worktrees commit the pin and clobber each other.
*/
import { describe, it, expect, beforeEach, afterEach } from "bun:test";
import { mkdtempSync, writeFileSync, readFileSync, existsSync, rmSync, chmodSync, statSync } from "fs";
import { tmpdir } from "os";
import { join } from "path";
import { ensureGbrainSourceGitignored } from "../bin/gstack-gbrain-sync";
describe("ensureGbrainSourceGitignored", () => {
let root: string;
beforeEach(() => {
root = mkdtempSync(join(tmpdir(), "gstack-gbrain-gitignore-"));
});
afterEach(() => {
rmSync(root, { recursive: true, force: true });
});
it("creates .gitignore with the pin entry when none exists", () => {
const gitignorePath = join(root, ".gitignore");
expect(existsSync(gitignorePath)).toBe(false);
ensureGbrainSourceGitignored(root);
expect(existsSync(gitignorePath)).toBe(true);
expect(readFileSync(gitignorePath, "utf-8")).toBe(".gbrain-source\n");
});
it("appends the pin entry to an existing .gitignore without trailing newline", () => {
const gitignorePath = join(root, ".gitignore");
writeFileSync(gitignorePath, "node_modules\n.env");
ensureGbrainSourceGitignored(root);
expect(readFileSync(gitignorePath, "utf-8")).toBe(
"node_modules\n.env\n.gbrain-source\n",
);
});
it("appends the pin entry to an existing .gitignore with trailing newline", () => {
const gitignorePath = join(root, ".gitignore");
writeFileSync(gitignorePath, "node_modules\n.env\n");
ensureGbrainSourceGitignored(root);
expect(readFileSync(gitignorePath, "utf-8")).toBe(
"node_modules\n.env\n.gbrain-source\n",
);
});
it("is idempotent: does not duplicate the pin entry on a second call", () => {
const gitignorePath = join(root, ".gitignore");
writeFileSync(gitignorePath, "node_modules\n.gbrain-source\n.env\n");
ensureGbrainSourceGitignored(root);
ensureGbrainSourceGitignored(root);
const lines = readFileSync(gitignorePath, "utf-8").split("\n");
const hits = lines.filter((line) => line.trim() === ".gbrain-source");
expect(hits.length).toBe(1);
});
it("recognizes the entry even when it has surrounding whitespace", () => {
const gitignorePath = join(root, ".gitignore");
writeFileSync(gitignorePath, "node_modules\n .gbrain-source \n");
ensureGbrainSourceGitignored(root);
const lines = readFileSync(gitignorePath, "utf-8").split("\n");
const hits = lines.filter((line) => line.trim() === ".gbrain-source");
expect(hits.length).toBe(1);
});
it("does not throw when the .gitignore is read-only", () => {
const gitignorePath = join(root, ".gitignore");
writeFileSync(gitignorePath, "node_modules\n");
const originalMode = statSync(gitignorePath).mode;
chmodSync(gitignorePath, 0o444);
try {
// Must not throw — sync stage continues on write failure.
expect(() => ensureGbrainSourceGitignored(root)).not.toThrow();
} finally {
chmodSync(gitignorePath, originalMode);
}
});
});