a_test.dart

import 'package:flutter/material.dart';
import 'package:flutter_html/flutter_html.dart';
import 'package:flutter_test/flutter_test.dart';

import '../test_utils.dart';

void main() {
  testWidgets('<a> test', (WidgetTester tester) async {
    await tester.pumpWidget(
      TestApp(
        child: Html(
          data: """<a>Hello, world!</a>""",
        ),
      ),
    );
    expect(find.text("Hello, world!", findRichText: true), findsOneWidget);
  });

  testWidgets('<a> test with href', (WidgetTester tester) async {
    await tester.pumpWidget(
      TestApp(
        child: Html(
          data: """<a href="https://example.com">Hello, world!</a>""",
        ),
      ),
    );
    expect(find.text("Hello, world!", findRichText: true), findsOneWidget);
  });

  testWidgets('<a> with widget child renders', (WidgetTester tester) async {
    await tester.pumpWidget(
      TestApp(
        child: Html(
          data: """<a href="https://example.com"><icon></icon></a>""",
          extensions: [
            TagExtension(
              tagsToExtend: {"icon"},
              child: const Icon(Icons.check),
            ),
          ],
        ),
      ),
    );
    expect(find.byIcon(Icons.check), findsOneWidget);
  });

  testWidgets('Tapping <a> test', (WidgetTester tester) async {
    String tappedUrl = "";

    await tester.pumpWidget(
      TestApp(
        child: Html(
          data: """<a href="https://example.com">Hello, world!</a>""",
          onLinkTap: (url, _, __) {
            tappedUrl = url ?? "";
          },
        ),
      ),
    );
    final finder = find.textRange.ofSubstring("Hello, world!");
    expect(finder, findsOne);
    expect(tappedUrl, equals(""));
    await tester.tapOnText(finder);
    expect(tappedUrl, equals("https://example.com"));
  });

  testWidgets('Tapping <a> with widget works', (WidgetTester tester) async {
    String tappedUrl = "";

    await tester.pumpWidget(
      TestApp(
        child: Html(
          data: """<a href="https://example.com"><icon></icon></a>""",
          onLinkTap: (url, _, __) {
            tappedUrl = url ?? "";
          },
          extensions: [
            TagExtension(
              tagsToExtend: {"icon"},
              child: const Icon(Icons.check),
            ),
          ],
        ),
      ),
    );
    expect(find.byIcon(Icons.check), findsOneWidget);
    expect(tappedUrl, equals(""));
    await tester.tap(find.byIcon(Icons.check));
    expect(tappedUrl, equals("https://example.com"));
  });
}