Initial commit: watch-together phases 0-4 + presence hardening, internet-tested

packages/server/test/server_test.dart

@@ -0,0 +1,61 @@
+import 'dart:io';
+
+import 'package:sync_relay_core/core.dart';
+import 'package:sync_relay_server/server.dart';
+import 'package:test/test.dart';
+
+void main() {
+  test('server has zero flutter imports', () async {
+    final libDir = Directory('lib');
+    final binDir = Directory('bin');
+    final offenders = <String>[];
+    for (final dir in [libDir, binDir]) {
+      if (!await dir.exists()) continue;
+      await for (final entity in dir.list(recursive: true)) {
+        if (entity is! File || !entity.path.endsWith('.dart')) continue;
+        final content = await entity.readAsString();
+        if (content.contains('package:flutter/') || content.contains('dart:ui')) {
+          offenders.add(entity.path);
+        }
+      }
+    }
+    expect(offenders, isEmpty, reason: 'Flutter imports in server: $offenders');
+  });
+
+  test('server starts, answers /health, stops cleanly', () async {
+    final server = RoomServer(const AppConfig(port: 0, secret: 't', name: 'test'));
+    await server.start();
+    expect(server.isRunning, isTrue);
+    final port = server.boundPort;
+    expect(port, greaterThan(0));
+
+    final client = HttpClient();
+    try {
+      final req = await client.get('127.0.0.1', port, '/health');
+      final resp = await req.close();
+      expect(resp.statusCode, 200);
+      final body = await resp.transform(const SystemEncoding().decoder).join();
+      expect(body, contains('test'));
+    } finally {
+      client.close();
+    }
+
+    await server.stop();
+    expect(server.isRunning, isFalse);
+  });
+
+  test('unknown path returns 404', () async {
+    final server = RoomServer(const AppConfig(port: 0, secret: 't', name: 'test'));
+    await server.start();
+    final client = HttpClient();
+    try {
+      final req = await client.get('127.0.0.1', server.boundPort, '/nope');
+      final resp = await req.close();
+      expect(resp.statusCode, 404);
+      await resp.drain();
+    } finally {
+      client.close();
+    }
+    await server.stop();
+  });
+}