Add unit tests for clients, auth, and theme

test/config/theme_test.dart

@@ -0,0 +1,89 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:network_app/config/theme.dart';
+
+void main() {
+  group('AppTheme', () {
+    test('light theme uses Material 3', () {
+      final theme = AppTheme.light;
+      expect(theme.useMaterial3, isTrue);
+    });
+
+    test('dark theme uses Material 3', () {
+      final theme = AppTheme.dark;
+      expect(theme.useMaterial3, isTrue);
+    });
+
+    test('light theme has light brightness', () {
+      final theme = AppTheme.light;
+      expect(theme.colorScheme.brightness, Brightness.light);
+    });
+
+    test('dark theme has dark brightness', () {
+      final theme = AppTheme.dark;
+      expect(theme.colorScheme.brightness, Brightness.dark);
+    });
+
+    test('app bar is centered', () {
+      final theme = AppTheme.light;
+      expect(theme.appBarTheme.centerTitle, isTrue);
+    });
+
+    test('app bar has no elevation', () {
+      final theme = AppTheme.light;
+      expect(theme.appBarTheme.elevation, 0);
+    });
+  });
+
+  group('Color Constants', () {
+    test('primary color is defined', () {
+      const primaryColor = Color(0xFF2563EB);
+      expect(primaryColor.value, 0xFF2563EB);
+    });
+
+    test('primary color is blue', () {
+      const primaryColor = Color(0xFF2563EB);
+      expect(primaryColor.blue, greaterThan(200));
+    });
+  });
+
+  group('Input Decoration', () {
+    test('inputs are filled', () {
+      final theme = AppTheme.light;
+      expect(theme.inputDecorationTheme.filled, isTrue);
+    });
+
+    test('border radius is 12', () {
+      final theme = AppTheme.light;
+      final border = theme.inputDecorationTheme.border as OutlineInputBorder?;
+      expect(border?.borderRadius, BorderRadius.circular(12));
+    });
+  });
+
+  group('Button Themes', () {
+    test('elevated button has padding', () {
+      final theme = AppTheme.light;
+      final buttonStyle = theme.elevatedButtonTheme.style;
+      expect(buttonStyle, isNotNull);
+    });
+
+    test('text button has padding', () {
+      final theme = AppTheme.light;
+      final buttonStyle = theme.textButtonTheme.style;
+      expect(buttonStyle, isNotNull);
+    });
+  });
+
+  group('Card Theme', () {
+    test('cards have no elevation', () {
+      final theme = AppTheme.light;
+      expect(theme.cardTheme.elevation, 0);
+    });
+
+    test('cards have rounded corners', () {
+      final theme = AppTheme.light;
+      final shape = theme.cardTheme.shape as RoundedRectangleBorder?;
+      expect(shape?.borderRadius, BorderRadius.circular(12));
+    });
+  });
+}