pkg/shelf

pkg/shelf/test/shelf_io_test.dart

+// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+library shelf_io_test;
+
+import 'dart:async';
+import 'dart:convert';
+import 'dart:io';
+
+import 'package:http/http.dart' as http;
+import 'package:scheduled_test/scheduled_test.dart';
+import 'package:shelf/shelf.dart';
+import 'package:shelf/shelf_io.dart' as shelf_io;
+
+import 'test_util.dart';
+
+void main() {
+  test('sync handler returns a value to the client', () {
+    _scheduleServer(syncHandler);
+
+    return _scheduleGet().then((response) {
+      expect(response.statusCode, HttpStatus.OK);
+      expect(response.body, 'Hello from /');
+    });
+  });
+
+  test('async handler returns a value to the client', () {
+    _scheduleServer(asyncHandler);
+
+    return _scheduleGet().then((response) {
+      expect(response.statusCode, HttpStatus.OK);
+      expect(response.body, 'Hello from /');
+    });
+  });
+
+  test('sync null response leads to a 500', () {
+    _scheduleServer((request) => null);
+
+    return _scheduleGet().then((response) {
+      expect(response.statusCode, HttpStatus.INTERNAL_SERVER_ERROR);
+      expect(response.body, 'Internal Server Error');
+    });
+  });
+
+  test('async null response leads to a 500', () {
+    _scheduleServer((request) => new Future.value(null));
+
+    return _scheduleGet().then((response) {
+      expect(response.statusCode, HttpStatus.INTERNAL_SERVER_ERROR);
+      expect(response.body, 'Internal Server Error');
+    });
+  });
+
+  test('thrown error leads to a 500', () {
+    _scheduleServer((request) {
+      throw new UnsupportedError('test');
+    });
+
+    return _scheduleGet().then((response) {
+      expect(response.statusCode, HttpStatus.INTERNAL_SERVER_ERROR);
+      expect(response.body, 'Internal Server Error');
+    });
+  });
+
+  test('async error leads to a 500', () {
+    _scheduleServer((request) {
+      return new Future.error('test');
+    });
+
+    return _scheduleGet().then((response) {
+      expect(response.statusCode, HttpStatus.INTERNAL_SERVER_ERROR);
+      expect(response.body, 'Internal Server Error');
+    });
+  });
+
+  test('Request is populated correctly', () {
+    var path = '/foo/bar?qs=value#anchor';
+
+    _scheduleServer((request) {
+      expect(request.contentLength, 0);
+      expect(request.method, 'GET');
+
+      var expectedUrl = 'http://localhost:$_serverPort$path';
+      expect(request.requestedUri, Uri.parse(expectedUrl));
+
+      expect(request.pathInfo, '/foo/bar');
+      expect(request.pathSegments, ['foo', 'bar']);
+      expect(request.protocolVersion, '1.1');
+      expect(request.queryString, 'qs=value');
+      expect(request.scriptName, '');
+
+      return syncHandler(request);
+    });
+
+    return schedule(() => http.get('http://localhost:$_serverPort$path'))
+        .then((response) {
+      expect(response.statusCode, HttpStatus.OK);
+      expect(response.body, 'Hello from /foo/bar');
+    });
+  });
+
+  test('custom response headers are received by the client', () {
+    _scheduleServer((request) {
+      return new Response.ok('Hello from /', headers: {
+        'test-header': 'test-value',
+        'test-list': 'a, b, c'
+      });
+    });
+
+    return _scheduleGet().then((response) {
+      expect(response.statusCode, HttpStatus.OK);
+      expect(response.headers['test-header'], 'test-value');
+      expect(response.body, 'Hello from /');
+    });
+  });
+
+  test('custom status code is received by the client', () {
+    _scheduleServer((request) {
+      return new Response(299, body: 'Hello from /');
+    });
+
+    return _scheduleGet().then((response) {
+      expect(response.statusCode, 299);
+      expect(response.body, 'Hello from /');
+    });
+  });
+
+  test('custom request headers are received by the handler', () {
+    _scheduleServer((request) {
+      expect(request.headers, containsPair('custom-header', 'client value'));
+      return syncHandler(request);
+    });
+
+    var headers = {
+      'custom-header': 'client value'
+    };
+
+    return _scheduleGet(headers: headers).then((response) {
+      expect(response.statusCode, HttpStatus.OK);
+      expect(response.body, 'Hello from /');
+    });
+  });
+
+  test('post with empty content', () {
+    _scheduleServer((request) {
+      expect(request.mimeType, isNull);
+      expect(request.encoding, isNull);
+      expect(request.method, 'POST');
+      expect(request.contentLength, 0);
+
+      return request.readAsString().then((body) {
+        expect(body, '');
+        return syncHandler(request);
+      });
+    });
+
+    return _schedulePost().then((response) {
+      expect(response.statusCode, HttpStatus.OK);
+      expect(response.stream.bytesToString(), completion('Hello from /'));
+    });
+  });
+
+  test('post with request content', () {
+    _scheduleServer((request) {
+      expect(request.mimeType, 'text/plain');
+      expect(request.encoding, UTF8);
+      expect(request.method, 'POST');
+      expect(request.contentLength, 9);
+
+      return request.readAsString().then((body) {
+        expect(body, 'test body');
+        return syncHandler(request);
+      });
+    });
+
+    return _schedulePost(body: 'test body').then((response) {
+      expect(response.statusCode, HttpStatus.OK);
+      expect(response.stream.bytesToString(), completion('Hello from /'));
+    });
+  });
+}
+
+int _serverPort;
+
+Future _scheduleServer(Handler handler) {
+  return schedule(() => shelf_io.serve(handler, 'localhost', 0).then((server) {
+    currentSchedule.onComplete.schedule(() {
+      _serverPort = null;
+      return server.close(force: true);
+    });
+
+    _serverPort = server.port;
+  }));
+}
+
+Future<http.Response> _scheduleGet({Map<String, String> headers}) {
+  if (headers == null) headers = {};
+
+  return schedule(() =>
+      http.get('http://localhost:$_serverPort/', headers: headers));
+}
+
+Future<http.StreamedResponse> _schedulePost({Map<String, String> headers,
+    String body}) {
+
+  return schedule(() {
+
+    var request = new http.Request('POST',
+        Uri.parse('http://localhost:$_serverPort/'));
+
+    if (headers != null) request.headers.addAll(headers);
+    if (body != null) request.body = body;
+
+    return request.send();
+  });
+}