FirebaseStub: refactoring

__mocks__/__tests__/gatsby-plugin-firebase.test.js

@@ -1,5 +1,60 @@
 import FirebaseStub from '../gatsby-plugin-firebase';
 
+describe('auth', () => {
+  afterEach(() => {
+    FirebaseStub.auth().dispose();
+  });
+
+  it('reuses existing Auth instance', () => {
+    const auth1 = FirebaseStub.auth();
+    const auth2 = FirebaseStub.auth();
+
+    expect(auth1.uuid).toBeTruthy();
+    expect(auth2.uuid).toBeTruthy();
+    expect(auth1.uuid).toEqual(auth2.uuid);
+  });
+
+  it('returns anonymous user when signing in anonymously', async () => {
+    const user = await FirebaseStub.auth().signInAnonymously();
+
+    expect(user).toBeTruthy();
+    expect(user).toEqual(FirebaseStub.auth().anonymousUser);
+  });
+
+  it('calls onAuthStateChanged observer with anonymous user when signing in anonymously', async () => {
+    let user = null;
+    let error = null;
+    FirebaseStub.auth().onAuthStateChanged(
+      (_user) => {
+        user = _user;
+      },
+      (_error) => {
+        error = _error;
+      },
+    );
+
+    await FirebaseStub.auth().signInAnonymously();
+
+    expect(user).toBeTruthy();
+    expect(user).toEqual(FirebaseStub.auth().anonymousUser);
+    expect(error).toBeNull();
+  });
+
+  it('onAuthStateChanged unsubscribe removes observer', () => {
+    const observer = () => {};
+    const unsubscribe = FirebaseStub.auth().onAuthStateChanged(observer);
+    expect(unsubscribe).toBeTruthy();
+    expect(FirebaseStub.auth().onAuthStateChangedObservers.length).toEqual(1);
+    expect(FirebaseStub.auth().onAuthStateChangedObservers[0]).toEqual(
+      observer,
+    );
+
+    unsubscribe();
+
+    expect(FirebaseStub.auth().onAuthStateChangedObservers.length).toEqual(0);
+  });
+});
+
 describe('database', () => {
   it('reuses existing Database instance', () => {
     const database1 = FirebaseStub.database();
@@ -63,9 +118,9 @@ describe('database', () => {
     const users = usersDataSnapshot.val();
     expect(users).toBeTruthy();
     expect(Object.keys(users).length).toEqual(1);
-    const testUser = users[FirebaseStub.database().testUser.uid];
-    expect(testUser).toBeTruthy();
-    expect(testUser.uid).toEqual(FirebaseStub.database().testUser.uid);
+    const anonymousUser = users[FirebaseStub.database().anonymousUser.uid];
+    expect(anonymousUser).toBeTruthy();
+    expect(anonymousUser).toEqual(FirebaseStub.database().anonymousUser);
   });
 
   it('retrieves resume if it exists', async () => {
@@ -97,12 +152,12 @@ describe('database', () => {
 
     const user = (
       await FirebaseStub.database()
-        .ref(`users/${FirebaseStub.database().testUser.uid}`)
+        .ref(`users/${FirebaseStub.database().anonymousUser.uid}`)
         .once('value')
     ).val();
 
     expect(user).toBeTruthy();
-    expect(user.uid).toEqual(FirebaseStub.database().testUser.uid);
+    expect(user).toEqual(FirebaseStub.database().anonymousUser);
   });
 
   it('retrieves null if user does not exist', async () => {
@@ -116,58 +171,3 @@ describe('database', () => {
     expect(user).toBeNull();
   });
 });
-
-describe('auth', () => {
-  afterEach(() => {
-    FirebaseStub.auth().clearOnAuthStateChangedObservers();
-  });
-
-  it('reuses existing Auth instance', () => {
-    const auth1 = FirebaseStub.auth();
-    const auth2 = FirebaseStub.auth();
-
-    expect(auth1.uuid).toBeTruthy();
-    expect(auth2.uuid).toBeTruthy();
-    expect(auth1.uuid).toEqual(auth2.uuid);
-  });
-
-  it('returns test user when signing in anonymously', async () => {
-    const user = await FirebaseStub.auth().signInAnonymously();
-
-    expect(user).toBeTruthy();
-    expect(user).toEqual(FirebaseStub.database().testUser);
-  });
-
-  it('calls onAuthStateChanged observer with test user when signing in anonymously', async () => {
-    let user = null;
-    let error = null;
-    FirebaseStub.auth().onAuthStateChanged(
-      (_user) => {
-        user = _user;
-      },
-      (_error) => {
-        error = _error;
-      },
-    );
-
-    await FirebaseStub.auth().signInAnonymously();
-
-    expect(user).toBeTruthy();
-    expect(user).toEqual(FirebaseStub.database().testUser);
-    expect(error).toBeNull();
-  });
-
-  it('onAuthStateChanged unsubscribe removes observer', () => {
-    const observer = () => {};
-    const unsubscribe = FirebaseStub.auth().onAuthStateChanged(observer);
-    expect(unsubscribe).toBeTruthy();
-    expect(FirebaseStub.auth().onAuthStateChangedObservers.length).toEqual(1);
-    expect(FirebaseStub.auth().onAuthStateChangedObservers[0]).toEqual(
-      observer,
-    );
-
-    unsubscribe();
-
-    expect(FirebaseStub.auth().onAuthStateChangedObservers.length).toEqual(0);
-  });
-});

__mocks__/gatsby-plugin-firebase.js

@@ -4,6 +4,13 @@ import { v4 as uuidv4 } from 'uuid';
 
 class Auth {
   static #instance = undefined;
+  static anonymousUser = {
+    displayName: 'Anonymous User 1',
+    email: 'anonymous.user@noemail.com',
+    isAnonymous: true,
+    name: 'Anonymous 1',
+    uid: 'anonym123',
+  };
   #uuid = '';
   #onAuthStateChangedObservers = [];
 
@@ -25,7 +32,11 @@ class Auth {
     return this.#onAuthStateChangedObservers;
   }
 
-  clearOnAuthStateChangedObservers() {
+  get anonymousUser() {
+    return Auth.anonymousUser;
+  }
+
+  dispose() {
     this.#onAuthStateChangedObservers = [];
   }
 
@@ -41,25 +52,21 @@ class Auth {
 
   async signInAnonymously() {
     this.#onAuthStateChangedObservers.forEach((observer) =>
-      observer(Database.testUser),
+      observer(this.anonymousUser),
     );
 
-    return Promise.resolve(Database.testUser);
+    return Promise.resolve(this.anonymousUser);
   }
 }
 
 class Database {
-  static testUser = {
-    email: 'test.user@noemail.com',
-    name: 'Test User',
-    uid: 'testuser123',
-  };
   static resumesPath = 'resumes';
   static usersPath = 'users';
   static #instance = undefined;
   #uuid = '';
   #data = {};
   #references = {};
+  #anonymousUser = undefined;
 
   constructor() {
     if (Database.#instance) {
@@ -69,10 +76,14 @@ class Database {
     Database.#instance = this;
 
     this.#uuid = uuidv4();
+    this.#anonymousUser = {
+      uid: Auth.anonymousUser.uid,
+      isAnonymous: Auth.anonymousUser.isAnonymous,
+    };
   }
 
-  get testUser() {
-    return Database.testUser;
+  get anonymousUser() {
+    return this.#anonymousUser;
   }
 
   get demoResumeId() {
@@ -105,7 +116,7 @@ class Database {
 
       resume.id = key;
       resume.name = `Test Resume ${key}`;
-      resume.user = this.testUser.uid;
+      resume.user = this.anonymousUser.uid;
 
       let date = new Date('December 15, 2020 11:20:25');
       resume.updatedAt = date.valueOf();
@@ -116,7 +127,7 @@ class Database {
     this.#data[Database.resumesPath] = resumes;
 
     const users = {};
-    users[this.testUser.uid] = this.testUser;
+    users[this.anonymousUser.uid] = this.anonymousUser;
     this.#data[Database.usersPath] = users;
   }