61 lines
2.8 KiB
Markdown
61 lines
2.8 KiB
Markdown
# Angel3 Testing Library
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[](https://dart.dev/null-safety)
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[](https://gitter.im/angel_dart/discussion)
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[](https://github.com/dukefirehawk/angel/tree/master/packages/test/LICENSE)
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Testing utility library for the Angel3 framework.
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## TestClient
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The `TestClient` class is a custom `angel3_client` that sends mock requests to your server. This means that you will not have to bind your server to HTTP to run. Plus, it is an `angel3_client`, and thus supports services and other goodies. The `TestClient` also supports WebSockets. WebSockets cannot be mocked (yet!) within this library, so calling the `websocket()` function will also bind your server to HTTP, if it is not already listening. The return value is a `WebSockets` client instance (from [`package:angel3_websocket`](https://github.com/dukefirehawk/angel/tree/angel3/packages/websocket));
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```dart
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var ws = await client.websocket('/ws');
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ws.service('api/users').onCreated.listen(...);
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// To receive all blobs of data sent on the WebSocket:
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ws.onData.listen(...);
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```
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## Matchers
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Several `Matcher`s are bundled with this package, and run on any `package:http` `Response`, not just those returned by Angel.
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```dart
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void test('foo', () async {
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var res = await client.get('/foo');
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expect(res, allOf([
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isJson({'foo': 'bar'}),
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hasStatus(200),
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hasContentType(ContentType.JSON),
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hasContentType('application/json'),
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hasHeader('server'), // Assert header present
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hasHeader('server', 'angel'), // Assert header present with value
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hasHeader('foo', ['bar', 'baz']), // ... Or multiple values
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hasBody(), // Assert non-empty body
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hasBody('{"foo":"bar"}') // Assert specific body
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]));
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});
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void test('error', () async {
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var res = await client.get('/error');
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expect(res, isAngelHttpException());
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expect(res, isAngelHttpException(statusCode: 404, message: ..., errors: [...])) // Optional
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});
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```
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`hasValidBody` is one of the most powerful `Matcher`s in this library, because it allows you to validate a JSON body against a validation schema. Angel3 provides a comprehensive [validation library](<https://github.com/dukefirehawk/angel/tree/master/packages/validate>) that integrates tightly with the `matcher` package that you already use for testing.
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```dart
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test('validate response', () async {
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var res = await client.get('/bar');
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expect(res, hasValidBody(new Validator({
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'foo': isBoolean,
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'bar': [isString, equals('baz')],
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'age*': [],
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'nested': someNestedValidator
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})));
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});
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```
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