Initial checkin of gRPC to third_party/

third_party/grpc/test/cpp/interop/interop_client.h

Index: third_party/grpc/test/cpp/interop/interop_client.h
diff --git a/third_party/grpc/test/cpp/interop/interop_client.h b/third_party/grpc/test/cpp/interop/interop_client.h
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+/*
+ *
+ * Copyright 2015-2016, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#ifndef GRPC_TEST_CPP_INTEROP_INTEROP_CLIENT_H
+#define GRPC_TEST_CPP_INTEROP_INTEROP_CLIENT_H
+
+#include <memory>
+
+#include <grpc/grpc.h>
+#include <grpc++/channel.h>
+#include "src/proto/grpc/testing/messages.grpc.pb.h"
+#include "src/proto/grpc/testing/test.grpc.pb.h"
+
+namespace grpc {
+namespace testing {
+
+// Function pointer for custom checks.
+using CheckerFn =
+    std::function<void(const InteropClientContextInspector&,
+                       const SimpleRequest*, const SimpleResponse*)>;
+
+class InteropClient {
+ public:
+  explicit InteropClient(std::shared_ptr<Channel> channel);
+  explicit InteropClient(
+      std::shared_ptr<Channel> channel,
+      bool new_stub_every_test_case);  // If new_stub_every_test_case is true,
+                                       // a new TestService::Stub object is
+                                       // created for every test case below
+  ~InteropClient() {}
+
+  void Reset(std::shared_ptr<Channel> channel);
+
+  void DoEmpty();
+  void DoLargeUnary();
+  void DoLargeCompressedUnary();
+  void DoPingPong();
+  void DoHalfDuplex();
+  void DoRequestStreaming();
+  void DoResponseStreaming();
+  void DoResponseCompressedStreaming();
+  void DoResponseStreamingWithSlowConsumer();
+  void DoCancelAfterBegin();
+  void DoCancelAfterFirstResponse();
+  void DoTimeoutOnSleepingServer();
+  void DoEmptyStream();
+  void DoStatusWithMessage();
+  void DoCustomMetadata();
+  // Auth tests.
+  // username is a string containing the user email
+  void DoJwtTokenCreds(const grpc::string& username);
+  void DoComputeEngineCreds(const grpc::string& default_service_account,
+                            const grpc::string& oauth_scope);
+  // username the GCE default service account email
+  void DoOauth2AuthToken(const grpc::string& username,
+                         const grpc::string& oauth_scope);
+  // username is a string containing the user email
+  void DoPerRpcCreds(const grpc::string& json_key);
+
+ private:
+  class ServiceStub {
+   public:
+    // If new_stub_every_call = true, pointer to a new instance of
+    // TestServce::Stub is returned by Get() everytime it is called
+    ServiceStub(std::shared_ptr<Channel> channel, bool new_stub_every_call);
+
+    TestService::Stub* Get();
+
+    void Reset(std::shared_ptr<Channel> channel);
+
+   private:
+    std::unique_ptr<TestService::Stub> stub_;
+    std::shared_ptr<Channel> channel_;
+    bool new_stub_every_call_;  // If true, a new stub is returned by every
+                                // Get() call
+  };
+
+  void PerformLargeUnary(SimpleRequest* request, SimpleResponse* response);
+
+  /// Run \a custom_check_fn as an additional check.
+  void PerformLargeUnary(SimpleRequest* request, SimpleResponse* response,
+                         CheckerFn custom_checks_fn);
+  void AssertOkOrPrintErrorStatus(const Status& s);
+  ServiceStub serviceStub_;
+};
+
+}  // namespace testing
+}  // namespace grpc
+
+#endif  // GRPC_TEST_CPP_INTEROP_INTEROP_CLIENT_H