Update quill_html_converter test

quill_html_converter/pubspec.yaml

@@ -25,13 +25,14 @@ dependencies:
   markdown: ^7.2.2
   charcode: ^1.3.1
   collection: ^1.18.0
-  dart_quill_delta: ^9.3.2
+  dart_quill_delta: ^9.3.5
 
 
 dev_dependencies:
   flutter_test:
     sdk: flutter
-  flutter_lints: ^3.0.1
+  flutter_lints: ^3.0.2
+  test: ^1.24.9
 
 flutter:
 

quill_html_converter/test/quill_html_converter.dart

@@ -1,7 +0,0 @@
-import 'package:flutter_test/flutter_test.dart';
-
-void main() {
-  test('No tests for now', () {
-    expect(true, true);
-  });
-}

quill_html_converter/test/quill_html_converter_test.dart

@@ -0,0 +1,19 @@
+import 'package:dart_quill_delta/dart_quill_delta.dart';
+import 'package:quill_html_converter/quill_html_converter.dart';
+import 'package:test/test.dart';
+
+void main() {
+  group('Quill HTML Converter', () {
+    test('Example of toHtml', () {
+      const html = '<p><br/></p><h1><br/></h1>';
+      final quillDelta = [
+        {'insert': '\n'},
+        {
+          'attributes': {'header': 1},
+          'insert': 'Hello'
+        }
+      ];
+      expect(Delta.fromJson(quillDelta).toHtml().trim(), html.trim());
+    });
+  });
+}