Flutter 앱 골격 · 5탭 네비게이션 · 로그인 화면 · Firestore 보안 규칙·인덱스

app/firebase/test/support/environment.mjs

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+import { readFileSync } from 'node:fs';
+import { initializeTestEnvironment } from '@firebase/rules-unit-testing';
+import { doc, setDoc } from 'firebase/firestore';
+
+export const projectId = process.env.GCLOUD_PROJECT ?? 'demo-fancake';
+
+function emulatorAddress() {
+  const value = process.env.FIRESTORE_EMULATOR_HOST ?? '127.0.0.1:8080';
+  const separator = value.lastIndexOf(':');
+
+  if (separator < 1) {
+    throw new Error(`Invalid FIRESTORE_EMULATOR_HOST: ${value}`);
+  }
+
+  const host = value.slice(0, separator);
+  const port = Number(value.slice(separator + 1));
+
+  if (!Number.isInteger(port)) {
+    throw new Error(`Invalid Firestore emulator port: ${value}`);
+  }
+
+  return { host, port };
+}
+
+export async function createTestEnvironment() {
+  const rules = readFileSync(new URL('../../firestore.rules', import.meta.url), 'utf8');
+
+  return initializeTestEnvironment({
+    projectId,
+    firestore: {
+      ...emulatorAddress(),
+      rules,
+    },
+  });
+}
+
+export async function seedDocuments(testEnvironment, documents) {
+  await testEnvironment.withSecurityRulesDisabled(async (context) => {
+    const firestore = context.firestore();
+
+    await Promise.all(
+      Object.entries(documents).map(([path, data]) => setDoc(doc(firestore, path), data)),
+    );
+  });
+}
+
+export function userDocument(uid, overrides = {}) {
+  return {
+    uid,
+    displayName: uid,
+    fandomId: 'fandom-a',
+    grade: 'SILVER',
+    totalContributedPop: 0,
+    status: 'active',
+    updatedAt: '2026-08-08T00:00:00Z',
+    ...overrides,
+  };
+}
+