net_mock

net_mock is a Dart package that streamlines the process of mocking HTTP requests in your tests. Inspired by NetMock, it extends the http.MockClient package by adding a layer of syntactic sugar. This makes it even more straightforward to define and manage expected requests and responses, allowing you to focus on writing clear and concise tests.

Features

1. Mock HTTP requests and responses for all HTTP methods.
2. Simplified API for setting up mocks.

Getting started

Prerequisites

To use net_mock, ensure you have the following:

1. Dart SDK 2.12.0 or later.
2. A Flutter or Dart project.

Installation

Add net_mock to your pubspec.yaml:

dependencies:
  net_mock: ^1.0.7

Then, run flutter pub get to install the package.

Usage

Basic Setup

Here's a basic example of how to use net_mock to mock a GET request in a test:

void main() {
  late NetMock netMock;
  late NumberRepository sut;

  setUp(() {
    netMock = NetMock();
    sut = NumberRepository(client: netMock.client);
  });

  test(
    "should return random fact for number",
        () async {
      netMock.addMock(
        request: NetMockRequest(
          url: Uri.parse("http://numbersapi.com/42"),
          method: Method.get,
        ),
        response: NetMockResponse(
          code: 200,
          body: "42 is the number of US gallons in a barrel of oil.",
        ),
      );

      final result = await sut.getFactForNumber(number: 42);

      expect(
        result,
        equals("42 is the number of US gallons in a barrel of oil."),
      );
    },
  );
}

class NumberRepository {
  final Client client;

  NumberRepository({required this.client});

  Future<String> getFactForNumber({required int number}) async {
    final response = await client.get(
      Uri.parse("http://numbersapi.com/$number"),
      headers: {
        HttpHeaders.contentTypeHeader: "application/json; charset=utf-8"
      },
    );
    return response.body;
  }
}