Dart already has fantastic testing support, through a library of testing helpers that will make test writing faster. The following functions are exported by package:angel_test, and will make your testing much easier.


This function will start app on an available port, and return a TestClient instance (based on package:angel_client) configured to send requests to the server. The client also supports session manipulation.
main() {
TestClient client;
setUp(() async {
client = await connectTo(myApp);
// Shut down server, and cancel pending requests
tearDown(() => client.close());
test('hello', () async {
// The server URL is automatically prepended to paths.
// This returns an http.Response. :)
var response = await client.get('/hello');


A Matcher that asserts that the given http.Response equals value when decoded as JSON. This uses test.equals internally, so anything that would pass that matcher passes this one.


A Matcher that asserts the given http.Response has the given status code.

More Matchers

The complete set of angel_test Matchers can be found here.

Next Up...

  1. 1.
    Find out how to handle errors in an Angel application.
  2. 2.
    Learn how to use the handy Angel CLI.