| // Protocol Buffers - Google's data interchange format |
| // Copyright 2008 Google Inc. All rights reserved. |
| // https://developers.google.com/protocol-buffers/ |
| // |
| // 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. |
| |
| #include "google/protobuf/json/internal/zero_copy_buffered_stream.h" |
| |
| #include <string> |
| #include <utility> |
| #include <vector> |
| |
| #include "google/protobuf/stubs/logging.h" |
| #include "google/protobuf/stubs/common.h" |
| #include <gmock/gmock.h> |
| #include <gtest/gtest.h> |
| #include "absl/strings/string_view.h" |
| #include "google/protobuf/json/internal/test_input_stream.h" |
| #include "google/protobuf/stubs/status_macros.h" |
| |
| namespace google { |
| namespace protobuf { |
| namespace json_internal { |
| namespace { |
| // TODO(b/234474291): Use the gtest versions once that's available in OSS. |
| MATCHER_P(IsOkAndHolds, inner, |
| absl::StrCat("is OK and holds ", testing::PrintToString(inner))) { |
| if (!arg.ok()) { |
| *result_listener << arg.status(); |
| return false; |
| } |
| return testing::ExplainMatchResult(inner, *arg, result_listener); |
| } |
| |
| absl::Status GetStatus(const absl::Status& s) { return s; } |
| template <typename T> |
| absl::Status GetStatus(const absl::StatusOr<T>& s) { |
| return s.status(); |
| } |
| |
| MATCHER_P(StatusIs, status, |
| absl::StrCat(".status() is ", testing::PrintToString(status))) { |
| return GetStatus(arg).code() == status; |
| } |
| |
| #define EXPECT_OK(x) EXPECT_THAT(x, StatusIs(absl::StatusCode::kOk)) |
| #define ASSERT_OK(x) ASSERT_THAT(x, StatusIs(absl::StatusCode::kOk)) |
| |
| TEST(ZcBufferTest, ReadUnbuffered) { |
| TestInputStream in{"foo", "bar", "baz"}; |
| ZeroCopyBufferedStream stream(&in); |
| |
| { |
| auto chunk = stream.Take(3); |
| EXPECT_FALSE(stream.IsBuffering()); |
| EXPECT_THAT(chunk, IsOkAndHolds("foo")); |
| } |
| |
| { |
| auto chunk = stream.Take(3); |
| EXPECT_FALSE(stream.IsBuffering()); |
| EXPECT_THAT(chunk, IsOkAndHolds("bar")); |
| } |
| |
| { |
| auto chunk = stream.Take(3); |
| EXPECT_FALSE(stream.IsBuffering()); |
| EXPECT_THAT(chunk, IsOkAndHolds("baz")); |
| } |
| } |
| |
| TEST(ZcBufferTest, ReadBuffered) { |
| TestInputStream in{"foo", "bar", "baz"}; |
| ZeroCopyBufferedStream stream(&in); |
| |
| { |
| auto chunk = stream.Take(4); |
| EXPECT_TRUE(stream.IsBuffering()); |
| EXPECT_THAT(chunk, IsOkAndHolds("foob")); |
| } |
| |
| { |
| auto chunk = stream.Take(2); |
| EXPECT_FALSE(stream.IsBuffering()); |
| EXPECT_THAT(chunk, IsOkAndHolds("ar")); |
| } |
| } |
| |
| TEST(ZcBufferTest, HoldAcrossSeam) { |
| TestInputStream in{"foo", "bar", "baz"}; |
| ZeroCopyBufferedStream stream(&in); |
| |
| auto chunk = stream.Take(3); |
| EXPECT_FALSE(stream.IsBuffering()); |
| EXPECT_THAT(chunk, IsOkAndHolds("foo")); |
| |
| auto chunk2 = stream.Take(3); |
| EXPECT_TRUE(stream.IsBuffering()); |
| EXPECT_THAT(chunk2, IsOkAndHolds("bar")); |
| EXPECT_THAT(chunk, IsOkAndHolds("foo")); |
| } |
| |
| TEST(ZcBufferTest, BufferAcrossSeam) { |
| TestInputStream in{"foo", "bar", "baz"}; |
| ZeroCopyBufferedStream stream(&in); |
| |
| auto chunk = stream.Take(2); |
| EXPECT_FALSE(stream.IsBuffering()); |
| EXPECT_THAT(chunk, IsOkAndHolds("fo")); |
| |
| auto chunk2 = stream.Take(3); |
| EXPECT_TRUE(stream.IsBuffering()); |
| EXPECT_THAT(chunk2, IsOkAndHolds("oba")); |
| EXPECT_THAT(chunk, IsOkAndHolds("fo")); |
| } |
| |
| TEST(ZcBufferTest, MarkUnbuffered) { |
| TestInputStream in{"foo", "bar", "baz"}; |
| ZeroCopyBufferedStream stream(&in); |
| |
| ASSERT_OK(stream.Advance(1)); |
| auto mark = stream.BeginMark(); |
| ASSERT_OK(stream.Advance(2)); |
| EXPECT_FALSE(stream.IsBuffering()); |
| EXPECT_THAT(mark.UpToUnread(), "oo"); |
| } |
| |
| TEST(ZcBufferTest, MarkBuffered) { |
| TestInputStream in{"foo", "bar", "baz"}; |
| ZeroCopyBufferedStream stream(&in); |
| |
| ASSERT_OK(stream.Advance(1)); |
| auto mark = stream.BeginMark(); |
| ASSERT_OK(stream.Advance(5)); |
| EXPECT_TRUE(stream.IsBuffering()); |
| EXPECT_THAT(mark.UpToUnread(), "oobar"); |
| } |
| } // namespace |
| } // namespace json_internal |
| } // namespace protobuf |
| } // namespace google |