Testing in Flutter

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Previously you have written tests to test the Change Notifier. In this episode, you will write tests to test the API requests. API requests are an integral part of any app. And we may have some bugs in the HTTPS function. Testing API requests is essential.

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test('Quotes Service MOCK API Test', () async{

});

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final apiService = QuotesService();

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import 'package:http/http.dart';
import 'package:http/testing.dart';

final client = MockClient();

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Future<Response> _mockHTTP(Request request) async {
  // Todo write mock http function.
}
final client = (MockClient(_mockHttp));
final apiService = QuotesService(client);
final quotes = await apiService.getQuotes();

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if (request.url.toString().startsWith('https://dummyjson.com/quotes')) {
        return Response(mockQuotes, 200,
            headers: {HttpHeaders.contentTypeHeader: 'application/json'});
      }

return throw Exception('failed');

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final mockQuotes = jsonEncode(data);

final data = {
  "quotes": [
    {"id": 1, "quote": "I am best", "author": "Shree"}
  ],
};

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expect(quotes.first.id, 1);
expect(quotes.first.author, 'Shree');
expect(quotes.first.quote, 'I am best');

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test('Quotes Service MOCK API Test', () async {
      

  Future<Response> _mockHttp(Request request) async {
    if (request.url.toString().startsWith('https://dummyjson.com/quotes')) {
      return Response(mockQuotes, 200,
          headers: {HttpHeaders.contentTypeHeader: 'application/json'});
    }

    return throw Exception('failed');
  }
  final client = (MockClient(_mockHttp));
  final apiService = QuotesService(client);

  final quotes = await apiService.getQuotes();

  expect(quotes.first.id, 1);
  expect(quotes.first.author, 'Shree');
  expect(quotes.first.quote, 'I am best');
});