| // 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.message_test; |
| |
| import 'dart:async'; |
| import 'dart:convert'; |
| |
| import 'package:shelf/src/message.dart'; |
| import 'package:unittest/unittest.dart'; |
| |
| import 'test_util.dart'; |
| |
| class _TestMessage extends Message { |
| _TestMessage(Map<String, String> headers, Map<String, Object> context, body, |
| Encoding encoding) |
| : super(body, headers: headers, context: context, encoding: encoding); |
| |
| Message change({Map<String, String> headers, Map<String, Object> context}) { |
| throw new UnimplementedError(); |
| } |
| } |
| |
| Message _createMessage({Map<String, String> headers, |
| Map<String, Object> context, body, Encoding encoding}) { |
| return new _TestMessage(headers, context, body, encoding); |
| } |
| |
| void main() { |
| group('headers', () { |
| test('message headers are case insensitive', () { |
| var message = _createMessage(headers: {'foo': 'bar'}); |
| |
| expect(message.headers, containsPair('foo', 'bar')); |
| expect(message.headers, containsPair('Foo', 'bar')); |
| expect(message.headers, containsPair('FOO', 'bar')); |
| }); |
| |
| test('null header value becomes empty, immutable', () { |
| var message = _createMessage(); |
| expect(message.headers, isEmpty); |
| expect(() => message.headers['h1'] = 'value1', throwsUnsupportedError); |
| }); |
| |
| test('headers are immutable', () { |
| var message = _createMessage(headers: {'h1': 'value1'}); |
| expect(() => message.headers['h1'] = 'value1', throwsUnsupportedError); |
| expect(() => message.headers['h1'] = 'value2', throwsUnsupportedError); |
| expect(() => message.headers['h2'] = 'value2', throwsUnsupportedError); |
| }); |
| }); |
| |
| group('context', () { |
| test('is accessible', () { |
| var message = _createMessage(context: {'foo': 'bar'}); |
| expect(message.context, containsPair('foo', 'bar')); |
| }); |
| |
| test('null context value becomes empty and immutable', () { |
| var message = _createMessage(); |
| expect(message.context, isEmpty); |
| expect(() => message.context['key'] = 'value', throwsUnsupportedError); |
| }); |
| |
| test('is immutable', () { |
| var message = _createMessage(context: {'key': 'value'}); |
| expect(() => message.context['key'] = 'value', throwsUnsupportedError); |
| expect(() => message.context['key2'] = 'value', throwsUnsupportedError); |
| }); |
| }); |
| |
| group("readAsString", () { |
| test("supports a null body", () { |
| var request = _createMessage(); |
| expect(request.readAsString(), completion(equals(""))); |
| }); |
| |
| test("supports a Stream<List<int>> body", () { |
| var controller = new StreamController(); |
| var request = _createMessage(body: controller.stream); |
| expect(request.readAsString(), completion(equals("hello, world"))); |
| |
| controller.add(HELLO_BYTES); |
| return new Future(() { |
| controller |
| ..add(WORLD_BYTES) |
| ..close(); |
| }); |
| }); |
| |
| test("defaults to UTF-8", () { |
| var request = _createMessage(body: new Stream.fromIterable([[195, 168]])); |
| expect(request.readAsString(), completion(equals("è"))); |
| }); |
| |
| test("the content-type header overrides the default", () { |
| var request = _createMessage( |
| headers: {'content-type': 'text/plain; charset=iso-8859-1'}, |
| body: new Stream.fromIterable([[195, 168]])); |
| expect(request.readAsString(), completion(equals("è"))); |
| }); |
| |
| test("an explicit encoding overrides the content-type header", () { |
| var request = _createMessage( |
| headers: {'content-type': 'text/plain; charset=iso-8859-1'}, |
| body: new Stream.fromIterable([[195, 168]])); |
| expect(request.readAsString(LATIN1), completion(equals("è"))); |
| }); |
| }); |
| |
| group("read", () { |
| test("supports a null body", () { |
| var request = _createMessage(); |
| expect(request.read().toList(), completion(isEmpty)); |
| }); |
| |
| test("supports a Stream<List<int>> body", () { |
| var controller = new StreamController(); |
| var request = _createMessage(body: controller.stream); |
| expect(request.read().toList(), |
| completion(equals([HELLO_BYTES, WORLD_BYTES]))); |
| |
| controller.add(HELLO_BYTES); |
| return new Future(() { |
| controller |
| ..add(WORLD_BYTES) |
| ..close(); |
| }); |
| }); |
| |
| test("throws when calling read()/readAsString() multiple times", () { |
| var request; |
| |
| request = _createMessage(); |
| expect(request.read().toList(), completion(isEmpty)); |
| expect(() => request.read(), throwsStateError); |
| |
| request = _createMessage(); |
| expect(request.readAsString(), completion(isEmpty)); |
| expect(() => request.readAsString(), throwsStateError); |
| |
| request = _createMessage(); |
| expect(request.readAsString(), completion(isEmpty)); |
| expect(() => request.read(), throwsStateError); |
| |
| request = _createMessage(); |
| expect(request.read().toList(), completion(isEmpty)); |
| expect(() => request.readAsString(), throwsStateError); |
| }); |
| }); |
| |
| group("contentLength", () { |
| test("is null without a content-length header", () { |
| var request = _createMessage(); |
| expect(request.contentLength, isNull); |
| }); |
| |
| test("comes from the content-length header", () { |
| var request = _createMessage(headers: {'content-length': '42'}); |
| expect(request.contentLength, 42); |
| }); |
| }); |
| |
| group("mimeType", () { |
| test("is null without a content-type header", () { |
| expect(_createMessage().mimeType, isNull); |
| }); |
| |
| test("comes from the content-type header", () { |
| expect(_createMessage(headers: {'content-type': 'text/plain'}).mimeType, |
| equals('text/plain')); |
| }); |
| |
| test("doesn't include parameters", () { |
| expect(_createMessage( |
| headers: { |
| 'content-type': 'text/plain; foo=bar; bar=baz' |
| }).mimeType, equals('text/plain')); |
| }); |
| }); |
| |
| group("encoding", () { |
| test("is null without a content-type header", () { |
| expect(_createMessage().encoding, isNull); |
| }); |
| |
| test("is null without a charset parameter", () { |
| expect(_createMessage(headers: {'content-type': 'text/plain'}).encoding, |
| isNull); |
| }); |
| |
| test("is null with an unrecognized charset parameter", () { |
| expect(_createMessage( |
| headers: {'content-type': 'text/plain; charset=fblthp'}).encoding, |
| isNull); |
| }); |
| |
| test("comes from the content-type charset parameter", () { |
| expect(_createMessage( |
| headers: { |
| 'content-type': 'text/plain; charset=iso-8859-1' |
| }).encoding, equals(LATIN1)); |
| }); |
| |
| test("defaults to encoding a String as UTF-8", () { |
| expect(_createMessage(body: "è").read().toList(), |
| completion(equals([[195, 168]]))); |
| }); |
| |
| test("uses the explicit encoding if available", () { |
| expect(_createMessage(body: "è", encoding: LATIN1).read().toList(), |
| completion(equals([[232]]))); |
| }); |
| |
| test("adds an explicit encoding to the content-type", () { |
| var request = _createMessage( |
| body: "è", encoding: LATIN1, headers: {'content-type': 'text/plain'}); |
| expect(request.headers, |
| containsPair('content-type', 'text/plain; charset=iso-8859-1')); |
| }); |
| |
| test("sets an absent content-type to application/octet-stream in order to " |
| "set the charset", () { |
| var request = _createMessage(body: "è", encoding: LATIN1); |
| expect(request.headers, containsPair( |
| 'content-type', 'application/octet-stream; charset=iso-8859-1')); |
| }); |
| |
| test("overwrites an existing charset if given an explicit encoding", () { |
| var request = _createMessage( |
| body: "è", |
| encoding: LATIN1, |
| headers: {'content-type': 'text/plain; charset=whatever'}); |
| expect(request.headers, |
| containsPair('content-type', 'text/plain; charset=iso-8859-1')); |
| }); |
| }); |
| } |