resolved issue #178(switch from GET->POST if payload exists)

test/providers/collection_providers_test.dart

@@ -0,0 +1,50 @@
+import 'package:apidash/consts.dart';
+import 'package:apidash/screens/home_page/editor_pane/details_card/request_pane/request_body.dart';
+import 'package:apidash/widgets/editor.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:apidash/providers/providers.dart';
+import 'helpers.dart';
+
+void main() async {
+  setUp(() async => await testSetUp());
+
+  testWidgets(
+      'Request method changes from GET to POST when body is added and Snackbar is shown',
+      (WidgetTester tester) async {
+    // Set up the test environment
+    final container = createContainer();
+    final notifier = container.read(collectionStateNotifierProvider.notifier);
+
+    // Ensure the initial request is a GET request with no body
+    final id = notifier.state!.entries.first.key;
+    expect(
+        notifier.getRequestModel(id)!.httpRequestModel!.method, HTTPVerb.get);
+    expect(notifier.getRequestModel(id)!.httpRequestModel!.body, isNull);
+
+    // Build the EditRequestBody widget
+    await tester.pumpWidget(
+      ProviderScope(
+        // ignore: deprecated_member_use
+        parent: container,
+        child: const MaterialApp(
+          home: Scaffold(
+            body: EditRequestBody(),
+          ),
+        ),
+      ),
+    );
+
+    // Add a body to the request, which should trigger the method change
+    await tester.enterText(find.byType(TextFieldEditor), 'new body added');
+    await tester.pump(); // Process the state change
+
+    // Verify that the request method changed to POST
+    expect(
+        notifier.getRequestModel(id)!.httpRequestModel!.method, HTTPVerb.post);
+
+    // Verify that the Snackbar is shown
+    expect(find.text('Switched to POST method'), findsOneWidget);
+  });
+}

test/providers/helpers.dart

@@ -0,0 +1,40 @@
+import 'package:apidash/services/hive_services.dart';
+import 'package:flutter/services.dart';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:test/test.dart';
+
+/// A testing utility which creates a [ProviderContainer] and automatically
+/// disposes it at the end of the test.
+ProviderContainer createContainer({
+  ProviderContainer? parent,
+  List<Override> overrides = const [],
+  List<ProviderObserver>? observers,
+}) {
+  // Create a ProviderContainer, and optionally allow specifying parameters.
+  final container = ProviderContainer(
+    parent: parent,
+    overrides: overrides,
+    observers: observers,
+  );
+
+  // When the test ends, dispose the container.
+  addTearDown(container.dispose);
+
+  return container;
+}
+
+Future<void> testSetUp() async {
+  // override path_provider methodCall to point
+  // path to temporary location for all unit tests
+  TestWidgetsFlutterBinding.ensureInitialized();
+  const MethodChannel channel =
+      MethodChannel('plugins.flutter.io/path_provider');
+
+  TestDefaultBinaryMessengerBinding.instance.defaultBinaryMessenger
+      .setMockMethodCallHandler(channel, (MethodCall methodCall) async {
+    return './test/unit-test-hive-storage/';
+  });
+
+  await openBoxes();
+}

test/providers/ui_providers_test.dart

@@ -1,6 +1,4 @@
 import 'dart:io';
-import 'package:spot/spot.dart';
-import 'package:apidash/consts.dart';
 import 'package:apidash/providers/providers.dart';
 import 'package:apidash/screens/common_widgets/common_widgets.dart';
 import 'package:apidash/screens/dashboard.dart';