blob: 714062ebafa92f33cd3097f7c4223ab5866c640d [file] [log] [blame]
// 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