Added client-side interop tests. (#32)

interop/bin/client.dart

@@ -0,0 +1,99 @@
+// Copyright (c) 2017, 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 'package:args/args.dart';
+
+import 'package:interop/src/client.dart';
+
+const _serverHostArgument = 'server_host';
+const _serverHostOverrideArgument = 'server_host_override';
+const _serverPortArgument = 'server_port';
+const _testCaseArgument = 'test_case';
+const _useTLSArgument = 'use_tls';
+const _useTestCAArgument = 'use_test_ca';
+const _defaultServiceAccountArgument = 'default_service_account';
+const _oauthScopeArgument = 'oauth_scope';
+const _serviceAccountKeyFileArgument = 'service_account_key_file';
+
+/// Clients implement test cases that test certain functionally. Each client is
+/// provided the test case it is expected to run as a command-line parameter.
+/// Names should be lowercase and without spaces.
+///
+/// Clients should accept these arguments:
+///
+/// * --server_host=HOSTNAME
+///     * The server host to connect to. For example, "localhost" or "127.0.0.1"
+/// * --server_host_override=HOSTNAME
+///     * The server host to claim to be connecting to, for use in TLS and
+///       HTTP/2 :authority header. If unspecified, the value of --server_host
+///       will be used
+/// * --server_port=PORT
+///     * The server port to connect to. For example, "8080"
+/// * --test_case=TESTCASE
+///     * The name of the test case to execute. For example, "empty_unary"
+/// * --use_tls=BOOLEAN
+///     * Whether to use a plaintext or encrypted connection
+/// * --use_test_ca=BOOLEAN
+///     * Whether to replace platform root CAs with ca.pem as the CA root
+/// * --default_service_account=ACCOUNT_EMAIL
+///     * Email of the GCE default service account.
+/// * --oauth_scope=SCOPE
+///     * OAuth scope. For example, "https://www.googleapis.com/auth/xapi.zoo"
+/// * --service_account_key_file=PATH
+///     * The path to the service account JSON key file generated from GCE
+///       developer console.
+///
+/// Clients must support TLS with ALPN. Clients must not disable certificate
+/// checking.
+Future<int> main(List<String> args) async {
+  final argumentParser = new ArgParser();
+  argumentParser.addOption(_serverHostArgument,
+      help: 'The server host to connect to. For example, "localhost" or '
+          '"127.0.0.1".');
+  argumentParser.addOption(_serverHostOverrideArgument,
+      help: 'The server host to claim to be connecting to, for use in TLS and '
+          'HTTP/2 :authority header. If unspecified, the value of '
+          '--server_host will be used.');
+  argumentParser.addOption(_serverPortArgument,
+      help: 'The server port to connect to. For example, "8080".');
+  argumentParser.addOption(_testCaseArgument,
+      help:
+          'The name of the test case to execute. For example, "empty_unary".');
+  argumentParser.addOption(_useTLSArgument,
+      defaultsTo: 'false',
+      help: 'Whether to use a plaintext or encrypted connection.');
+  argumentParser.addOption(_useTestCAArgument,
+      help: 'Whether to replace platform root CAs with ca.pem as the CA root.');
+  argumentParser.addOption(_defaultServiceAccountArgument,
+      help: 'Email of the GCE default service account.');
+  argumentParser.addOption(_oauthScopeArgument,
+      help: 'OAuth scope. For example, '
+          '"https://www.googleapis.com/auth/xapi.zoo".');
+  argumentParser.addOption(_serviceAccountKeyFileArgument,
+      help: 'The path to the service account JSON key file generated from GCE '
+          'developer console.');
+  final arguments = argumentParser.parse(args);
+
+  final testClient = new Tester();
+
+  testClient.serverHost = arguments[_serverHostArgument];
+  testClient.serverHostOverride = arguments[_serverHostOverrideArgument];
+  testClient.serverPort = arguments[_serverPortArgument];
+  testClient.testCase = arguments[_testCaseArgument];
+  testClient.useTls = arguments[_useTLSArgument];
+  testClient.useTestCA = arguments[_useTestCAArgument];
+  testClient.defaultServiceAccount = arguments[_defaultServiceAccountArgument];
+  testClient.oauthScope = arguments[_oauthScopeArgument];
+  testClient.serviceAccountKeyFile = arguments[_serviceAccountKeyFileArgument];
+
+  if (!testClient.validate()) {
+    print(argumentParser.usage);
+    return -1;
+  }
+  await testClient.runTest();
+  print('Passed.');
+  return 0;
+}

interop/ca.pem

@@ -0,0 +1,15 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----

interop/pubspec.yaml

@@ -9,6 +9,7 @@ environment:
 dependencies:
   args: ^0.13.0
   async: ^1.13.3
+  collection: ^1.14.2
   grpc:
     path: ../
   protobuf: ^0.5.4