From 137df708ce47e4aa9ca79b2e0bcf24b9ff5cd757 Mon Sep 17 00:00:00 2001
From: "google-labs-jules[bot]"
 <161369871+google-labs-jules[bot]@users.noreply.github.com>
Date: Wed, 1 Apr 2026 20:11:27 +0000
Subject: [PATCH] =?UTF-8?q?=F0=9F=A7=AA=20Add=20tests=20for=20toast=20util?=
 =?UTF-8?q?ity?=
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* 🎯 What: Added tests for the simple event emitter toast utility.
* 📊 Coverage: Testing covers subscribing, receiving events, helper methods (success, error, warning, info) and unsubscribing.
* ✨ Result: Improved test coverage and reliability of the toast component.
---
 apps/mobile/__tests__/toast.test.ts | 66 +++++++++++++++++++++++++++++
 1 file changed, 66 insertions(+)
 create mode 100644 apps/mobile/__tests__/toast.test.ts

diff --git a/apps/mobile/__tests__/toast.test.ts b/apps/mobile/__tests__/toast.test.ts
new file mode 100644
index 0000000..3f3aa21
--- /dev/null
+++ b/apps/mobile/__tests__/toast.test.ts
@@ -0,0 +1,66 @@
+import { toast } from '../src/utils/toast';
+
+describe('toast utility', () => {
+  let mockListener: jest.Mock;
+
+  beforeEach(() => {
+    mockListener = jest.fn();
+  });
+
+  afterEach(() => {
+    // Clear listeners to avoid leaking between tests
+    // Since we don't have a public clear method, we rely on unsubscribe
+    jest.clearAllMocks();
+  });
+
+  it('subscribes and receives a show event', () => {
+    const unsubscribe = toast.subscribe(mockListener);
+    toast.show('Hello World', 'info', 2000);
+
+    expect(mockListener).toHaveBeenCalledTimes(1);
+    expect(mockListener).toHaveBeenCalledWith(
+      expect.objectContaining({
+        message: 'Hello World',
+        type: 'info',
+        duration: 2000,
+        id: expect.any(String)
+      })
+    );
+
+    unsubscribe();
+  });
+
+  it('helper methods work correctly', () => {
+    const unsubscribe = toast.subscribe(mockListener);
+
+    toast.success('Success message');
+    expect(mockListener).toHaveBeenLastCalledWith(
+      expect.objectContaining({ message: 'Success message', type: 'success' })
+    );
+
+    toast.error('Error message');
+    expect(mockListener).toHaveBeenLastCalledWith(
+      expect.objectContaining({ message: 'Error message', type: 'error' })
+    );
+
+    toast.warning('Warning message');
+    expect(mockListener).toHaveBeenLastCalledWith(
+      expect.objectContaining({ message: 'Warning message', type: 'warning' })
+    );
+
+    toast.info('Info message');
+    expect(mockListener).toHaveBeenLastCalledWith(
+      expect.objectContaining({ message: 'Info message', type: 'info' })
+    );
+
+    unsubscribe();
+  });
+
+  it('unsubscribes correctly', () => {
+    const unsubscribe = toast.subscribe(mockListener);
+    unsubscribe();
+
+    toast.show('Test');
+    expect(mockListener).not.toHaveBeenCalled();
+  });
+});