Add appengine/gcloud/mustache dependencies.

pkg/gcloud/test/common.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.
+
+import 'dart:async';
+import 'dart:convert';
+
+import 'package:crypto/crypto.dart' as crypto;
+import 'package:http/http.dart' as http;
+import 'package:http/testing.dart' as http_testing;
+import 'package:http_parser/http_parser.dart' as http_parser;
+import 'package:mime/mime.dart' as mime;
+import 'package:unittest/unittest.dart';
+
+const CONTENT_TYPE_JSON_UTF8 = 'application/json; charset=utf-8';
+
+const RESPONSE_HEADERS = const {
+  'content-type': CONTENT_TYPE_JSON_UTF8
+};
+
+class MockClient extends http.BaseClient {
+  final String rootPath;
+  final Uri rootUri;
+
+  Map<String, Map<Pattern, Function>> mocks = {};
+  http_testing.MockClient client;
+
+  MockClient(String rootPath) :
+    rootPath = rootPath,
+    rootUri = Uri.parse('https://www.googleapis.com${rootPath}') {
+    client = new http_testing.MockClient(handler);
+  }
+
+  void register(String method, Pattern path,
+      http_testing.MockClientHandler handler) {
+    var map = mocks.putIfAbsent(method, () => new Map());
+    if (path is RegExp) {
+      map[new RegExp('$rootPath${path.pattern}')] = handler;
+    } else {
+      map['$rootPath$path'] = handler;
+    }
+  }
+
+  void registerUpload(String method, Pattern path,
+      http_testing.MockClientHandler handler) {
+    var map = mocks.putIfAbsent(method, () => new Map());
+    map['/upload$rootPath$path'] = handler;
+  }
+
+  void registerResumableUpload(String method, Pattern path,
+      http_testing.MockClientHandler handler) {
+    var map = mocks.putIfAbsent(method, () => new Map());
+    map['/resumable/upload$rootPath$path'] = handler;
+  }
+
+  void clear() {
+    mocks = {};
+  }
+
+  Future<http.Response> handler(http.Request request) {
+    expect(request.url.host, 'www.googleapis.com');
+    var path = request.url.path;
+    if (mocks[request.method] == null) {
+      throw 'No mock handler for method ${request.method} found. '
+          'Request URL was: ${request.url}';
+    }
+    var mockHandler;
+    mocks[request.method].forEach((pattern, handler) {
+      if (pattern.matchAsPrefix(path) != null) {
+        mockHandler = handler;
+      }
+    });
+    if (mockHandler == null) {
+      throw 'No mock handler for method ${request.method} and path '
+          '[$path] found. Request URL was: ${request.url}';
+    }
+    return mockHandler(request);
+  }
+
+  Future<http.StreamedResponse> send(http.BaseRequest request) {
+    return client.send(request);
+  }
+
+  Future<http.Response> respond(response) {
+    return new Future.value(
+        new http.Response(
+            JSON.encode(response.toJson()),
+            200,
+            headers: RESPONSE_HEADERS));
+  }
+
+  Future<http.Response> respondEmpty() {
+    return new Future.value(
+        new http.Response('', 200, headers: RESPONSE_HEADERS));
+  }
+
+  Future<http.Response> respondInitiateResumableUpload(project) {
+    Map headers = new Map.from(RESPONSE_HEADERS);
+    headers['location'] =
+        'https://www.googleapis.com/resumable/upload$rootPath'
+        'b/$project/o?uploadType=resumable&alt=json&'
+        'upload_id=AEnB2UqucpaWy7d5cr5iVQzmbQcQlLDIKiClrm0SAX3rJ7UN'
+        'Mu5bEoC9b4teJcJUKpqceCUeqKzuoP_jz2ps_dV0P0nT8OTuZQ';
+    return new Future.value(
+        new http.Response('', 200, headers: headers));
+  }
+
+  Future<http.Response> respondContinueResumableUpload() {
+    return new Future.value(
+        new http.Response('', 308, headers: RESPONSE_HEADERS));
+  }
+
+  Future<http.Response> respondBytes(List<int> bytes) {
+    return new Future.value(
+        new http.Response.bytes(bytes, 200, headers: RESPONSE_HEADERS));
+  }
+
+  Future<http.Response> respondError(statusCode) {
+    var error = {
+      'error': {
+        'code': statusCode,
+        'message': 'error'
+      }
+    };
+    return new Future.value(
+        new http.Response(
+            JSON.encode(error), statusCode, headers: RESPONSE_HEADERS));
+  }
+
+  Future processNormalMediaUpload(http.Request request) {
+    var completer = new Completer();
+
+    var contentType = new http_parser.MediaType.parse(
+        request.headers['content-type']);
+    expect(contentType.mimeType, 'multipart/related');
+    var boundary = contentType.parameters['boundary'];
+
+    var partCount = 0;
+    var json;
+    new Stream.fromIterable([request.bodyBytes, [13, 10]])
+        .transform(new mime.MimeMultipartTransformer(boundary))
+        .listen(
+            ((mime.MimeMultipart mimeMultipart) {
+              var contentType = mimeMultipart.headers['content-type'];
+              partCount++;
+              if (partCount == 1) {
+                // First part in the object JSON.
+                expect(contentType, 'application/json; charset=utf-8');
+                mimeMultipart
+                    .transform(UTF8.decoder)
+                    .fold('', (p, e) => '$p$e')
+                    .then((j) => json = j);
+              } else if (partCount == 2) {
+                // Second part is the base64 encoded bytes.
+                mimeMultipart
+                    .transform(ASCII.decoder)
+                    .fold('', (p, e) => '$p$e')
+                    .then(crypto.CryptoUtils.base64StringToBytes)
+                    .then((bytes) {
+                      completer.complete(
+                          new NormalMediaUpload(json, bytes, contentType));
+                    });
+              } else {
+                // Exactly two parts expected.
+                throw 'Unexpected part count';
+              }
+            }));
+
+    return completer.future;
+  }
+}
+
+class NormalMediaUpload {
+  final String json;
+  final List<int> bytes;
+  final String contentType;
+  NormalMediaUpload(this.json, this.bytes, this.contentType);
+}
+
+// Implementation of http.Client which traces all requests and responses.
+// Mainly useful for local testing.
+class TraceClient extends http.BaseClient {
+  final http.Client client;
+
+  TraceClient(this.client);
+
+  Future<http.StreamedResponse> send(http.BaseRequest request) {
+    print(request);
+    return request.finalize().toBytes().then((body) {
+      print('--- START REQUEST ---');
+      print(UTF8.decode(body));
+      print('--- END REQUEST ---');
+      var r = new RequestImpl(request.method, request.url, body);
+      r.headers.addAll(request.headers);
+      return client.send(r).then((http.StreamedResponse rr) {
+        return rr.stream.toBytes().then((body) {
+          print('--- START RESPONSE ---');
+          print(UTF8.decode(body));
+          print('--- END RESPONSE ---');
+          return new http.StreamedResponse(
+              new http.ByteStream.fromBytes(body),
+              rr.statusCode,
+              headers: rr.headers);
+
+        });
+      });
+    });
+  }
+
+  void close() {
+    client.close();
+  }
+}
+
+// http.BaseRequest implementationn used by the TraceClient.
+class RequestImpl extends http.BaseRequest {
+  final List<int> _body;
+
+  RequestImpl(String method, Uri url, this._body)
+      : super(method, url);
+
+  http.ByteStream finalize() {
+    super.finalize();
+    return new http.ByteStream.fromBytes(_body);
+  }
+}