feat: add method and test (#11)

* feat: add method and test

* chore: update

* refactor: change method

app/package.json

@@ -12,6 +12,7 @@
   "license": "MIT",
   "devDependencies": {
     "@babel/core": "^7.23.7",
+    "@firebase/rules-unit-testing": "^3.0.2",
     "@solidjs/testing-library": "^0.8.7",
     "autoprefixer": "^10.4.19",
     "babel-preset-solid": "^1.8.9",

app/src/service/firestore.test.ts

@@ -0,0 +1,43 @@
+import { test} from "uvu";
+import * as assert from "uvu/assert";
+import fs from "node:fs";
+import { initializeTestEnvironment, RulesTestEnvironment } from '@firebase/rules-unit-testing';
+
+import { getAllDocumentsWithCollectionName } from "./firestore";
+import type { Firestore } from "firebase/firestore";
+
+// setup the test environment with the Firestore emulator
+// before running the tests
+let testEnv: RulesTestEnvironment | null = null;
+
+test.before.each(async() => {
+  testEnv = await initializeTestEnvironment({
+    projectId: "test-project",
+    firestore: {
+      rules: fs.readFileSync("/home/yamashita/tegata/firestore.rules", "utf8"),
+      host: "localhost",
+      port: 8080
+    }
+    });
+  });
+
+test.after.each(async() => {
+  await testEnv?.cleanup();
+});
+
+test("getAllDocumentsWithCollectionName", async() => {
+  const user = testEnv?.authenticatedContext("test-user");
+  const firestore = user?.firestore() as unknown as Firestore;
+  const collectionName = "users";
+  if (!firestore) {
+    throw new Error("Firestore is not initialized");
+  }
+  const result = await getAllDocumentsWithCollectionName(firestore, collectionName);
+  if (result instanceof Error) {
+    throw result;
+  }
+  assert.is(result.length, 0);
+});
+
+
+test.run();