feat(atlassian): implement milestone M2 - jira command surface

skills/atlassian/shared/scripts/tests/helpers.ts

@@ -0,0 +1,71 @@
+import { mkdtempSync, rmSync, writeFileSync } from "node:fs";
+import { tmpdir } from "node:os";
+import path from "node:path";
+
+import { buildProgram } from "../src/cli.js";
+
+type RunCliOptions = {
+  args: string[];
+  cwd?: string;
+  env?: NodeJS.ProcessEnv;
+  fetchImpl?: typeof fetch;
+};
+
+class MemoryWriter {
+  private readonly chunks: string[] = [];
+
+  write(chunk: string | Uint8Array) {
+    this.chunks.push(typeof chunk === "string" ? chunk : Buffer.from(chunk).toString("utf8"));
+    return true;
+  }
+
+  toString() {
+    return this.chunks.join("");
+  }
+}
+
+export async function runCli(options: RunCliOptions) {
+  const stdout = new MemoryWriter();
+  const stderr = new MemoryWriter();
+  const program = buildProgram({
+    cwd: options.cwd,
+    env: options.env,
+    fetchImpl: options.fetchImpl,
+    stdout,
+    stderr,
+  });
+
+  await program.parseAsync(options.args, { from: "user" });
+
+  return {
+    stdout: stdout.toString(),
+    stderr: stderr.toString(),
+  };
+}
+
+export function createTempWorkspace() {
+  const cwd = mkdtempSync(path.join(tmpdir(), "atlassian-skill-"));
+
+  return {
+    cwd,
+    cleanup() {
+      rmSync(cwd, { recursive: true, force: true });
+    },
+    write(relativePath: string, contents: string) {
+      const target = path.join(cwd, relativePath);
+      writeFileSync(target, contents, "utf8");
+      return target;
+    },
+  };
+}
+
+export function jsonResponse(payload: unknown, init?: ResponseInit) {
+  return new Response(JSON.stringify(payload), {
+    status: init?.status ?? 200,
+    statusText: init?.statusText,
+    headers: {
+      "content-type": "application/json",
+      ...(init?.headers ?? {}),
+    },
+  });
+}