What's new

- Reordered Settings Page.
- Added "Click to Unblur" for posts.
- Added Persistent Notification
- Improved Grayscale Scheduling.
and more.

test/services/navigation_guard_test.dart

@@ -0,0 +1,193 @@
+// test/services/navigation_guard_test.dart
+//
+// Tests for NavigationGuard — the URL allow/block logic.
+//
+// Run with: flutter test test/services/navigation_guard_test.dart
+
+import 'package:flutter_test/flutter_test.dart';
+import 'package:focusgram/services/navigation_guard.dart';
+
+void main() {
+  group('NavigationGuard.evaluate', () {
+    // ── Instagram domain — allowed ──────────────────────────────────────────
+
+    test('allows root instagram.com', () {
+      final d = NavigationGuard.evaluate(url: 'https://www.instagram.com/');
+      expect(d.blocked, isFalse);
+    });
+
+    test('allows profile pages', () {
+      final d = NavigationGuard.evaluate(
+        url: 'https://www.instagram.com/someuser/',
+      );
+      expect(d.blocked, isFalse);
+    });
+
+    test('allows DM inbox', () {
+      final d = NavigationGuard.evaluate(
+        url: 'https://www.instagram.com/direct/inbox/',
+      );
+      expect(d.blocked, isFalse);
+    });
+
+    test('allows Explore page', () {
+      final d = NavigationGuard.evaluate(
+        url: 'https://www.instagram.com/explore/',
+      );
+      expect(d.blocked, isFalse);
+    });
+
+    test('allows instagram.com without www', () {
+      final d = NavigationGuard.evaluate(
+        url: 'https://instagram.com/accounts/login/',
+      );
+      expect(d.blocked, isFalse);
+    });
+
+    test('allows a specific reel URL from a DM share', () {
+      final d = NavigationGuard.evaluate(
+        url: 'https://www.instagram.com/reel/ABC123xyz/',
+      );
+      expect(d.blocked, isFalse);
+    });
+
+    test('allows login page', () {
+      final d = NavigationGuard.evaluate(
+        url: 'https://www.instagram.com/accounts/login/',
+      );
+      expect(d.blocked, isFalse);
+    });
+
+    // ── Reels FEED tab — blocked ────────────────────────────────────────────
+
+    test('blocks the reels feed tab /reels/', () {
+      final d = NavigationGuard.evaluate(
+        url: 'https://www.instagram.com/reels/',
+      );
+      expect(d.blocked, isTrue);
+      expect(d.reason, isNotNull);
+    });
+
+    test('blocks the reels feed tab /reels (no trailing slash)', () {
+      final d = NavigationGuard.evaluate(
+        url: 'https://www.instagram.com/reels',
+      );
+      expect(d.blocked, isTrue);
+    });
+
+    test('blocks the reels feed with our FocusGram query param', () {
+      // NavigationDelegate fires this URL from _strictReelsBlockJS
+      final d = NavigationGuard.evaluate(
+        url: 'https://www.instagram.com/reels/?fg=blocked',
+      );
+      // NOTE: The guard blocks /reels/ root; query params don't change outcome
+      // This is expected to be blocked since it matches _reelsFeedRegex
+      expect(d.blocked, isTrue);
+    });
+
+    // ── External domains — blocked ──────────────────────────────────────────
+
+    test('blocks external HTTP domains', () {
+      final d = NavigationGuard.evaluate(url: 'https://evil.com/phish');
+      expect(d.blocked, isTrue);
+      expect(d.reason, contains('External domain'));
+    });
+
+    test('blocks Facebook redirects', () {
+      final d = NavigationGuard.evaluate(
+        url: 'https://facebook.com/redirect?url=...',
+      );
+      expect(d.blocked, isTrue);
+    });
+
+    test('blocks l.instagram.com tracking redirect', () {
+      final d = NavigationGuard.evaluate(
+        url: 'https://l.instagram.com/?u=https%3A%2F%2Fexample.com',
+      );
+      // l.instagram.com is not in _allowedHosts → blocked
+      expect(d.blocked, isTrue);
+    });
+
+    // ── Non-HTTP schemes — allowed ──────────────────────────────────────────
+
+    test('allows about:blank', () {
+      final d = NavigationGuard.evaluate(url: 'about:blank');
+      expect(d.blocked, isFalse);
+    });
+
+    test('allows data: URIs', () {
+      final d = NavigationGuard.evaluate(url: 'data:text/html,hello');
+      expect(d.blocked, isFalse);
+    });
+
+    // ── Invalid URL — safe fallback ─────────────────────────────────────────
+
+    test('does not throw on empty string — returns not blocked', () {
+      final d = NavigationGuard.evaluate(url: '');
+      expect(d.blocked, isFalse);
+    });
+
+    test('does not throw on malformed URL', () {
+      final d = NavigationGuard.evaluate(url: ':::bad:::');
+      expect(d.blocked, isFalse);
+    });
+  });
+
+  group('NavigationGuard.isSpecificReel', () {
+    test('returns true for a real reel URL', () {
+      expect(
+        NavigationGuard.isSpecificReel(
+          'https://www.instagram.com/reel/ABC123/',
+        ),
+        isTrue,
+      );
+    });
+
+    test('returns true for reel URL without trailing slash', () {
+      expect(
+        NavigationGuard.isSpecificReel('https://www.instagram.com/reel/XYZ'),
+        isTrue,
+      );
+    });
+
+    test('returns false for the reels FEED root', () {
+      expect(
+        NavigationGuard.isSpecificReel('https://www.instagram.com/reels/'),
+        isFalse,
+      );
+    });
+
+    test('returns false for profile URL', () {
+      expect(
+        NavigationGuard.isSpecificReel('https://www.instagram.com/someuser/'),
+        isFalse,
+      );
+    });
+
+    test('returns false for DM inbox', () {
+      expect(
+        NavigationGuard.isSpecificReel(
+          'https://www.instagram.com/direct/inbox/',
+        ),
+        isFalse,
+      );
+    });
+
+    test('returns false for empty string', () {
+      expect(NavigationGuard.isSpecificReel(''), isFalse);
+    });
+  });
+
+  group('BlockDecision', () {
+    test('const constructor fields are accessible', () {
+      const d = BlockDecision(blocked: true, reason: 'test');
+      expect(d.blocked, isTrue);
+      expect(d.reason, 'test');
+    });
+
+    test('reason can be null', () {
+      const d = BlockDecision(blocked: false, reason: null);
+      expect(d.reason, isNull);
+    });
+  });
+}