feat: Add profile images

toju-app/src/app/store/users/user-avatar.effects.spec.ts

@@ -0,0 +1,85 @@
+import { User } from '../../shared-kernel';
+import {
+  shouldApplyAvatarTransfer,
+  shouldRequestAvatarData
+} from './user-avatar.effects';
+
+function createUser(overrides: Partial<User> = {}): User {
+  return {
+    id: 'user-1',
+    oderId: 'oder-1',
+    username: 'alice',
+    displayName: 'Alice',
+    status: 'online',
+    role: 'member',
+    joinedAt: Date.now(),
+    ...overrides
+  };
+}
+
+describe('user avatar sync helpers', () => {
+  it('requests avatar data when the remote version is newer', () => {
+    const existingUser = createUser({
+      avatarUrl: 'data:image/webp;base64,older',
+      avatarHash: 'hash-1',
+      avatarUpdatedAt: 100
+    });
+
+    expect(shouldRequestAvatarData(existingUser, {
+      avatarHash: 'hash-2',
+      avatarUpdatedAt: 200
+    })).toBe(true);
+  });
+
+  it('requests avatar data when metadata matches but the local payload is missing', () => {
+    const existingUser = createUser({
+      avatarHash: 'hash-1',
+      avatarMime: 'image/gif',
+      avatarUpdatedAt: 200
+    });
+
+    expect(shouldRequestAvatarData(existingUser, {
+      avatarHash: 'hash-1',
+      avatarUpdatedAt: 200
+    })).toBe(true);
+  });
+
+  it('does not request avatar data when the same payload is already present', () => {
+    const existingUser = createUser({
+      avatarUrl: 'data:image/gif;base64,current',
+      avatarHash: 'hash-1',
+      avatarMime: 'image/gif',
+      avatarUpdatedAt: 200
+    });
+
+    expect(shouldRequestAvatarData(existingUser, {
+      avatarHash: 'hash-1',
+      avatarUpdatedAt: 200
+    })).toBe(false);
+  });
+
+  it('applies equal-version transfers when the local payload is missing', () => {
+    const existingUser = createUser({
+      avatarHash: 'hash-1',
+      avatarUpdatedAt: 200
+    });
+
+    expect(shouldApplyAvatarTransfer(existingUser, {
+      hash: 'hash-1',
+      updatedAt: 200
+    })).toBe(true);
+  });
+
+  it('rejects older avatar transfers', () => {
+    const existingUser = createUser({
+      avatarUrl: 'data:image/gif;base64,current',
+      avatarHash: 'hash-2',
+      avatarUpdatedAt: 200
+    });
+
+    expect(shouldApplyAvatarTransfer(existingUser, {
+      hash: 'hash-1',
+      updatedAt: 100
+    })).toBe(false);
+  });
+});