diff options
Diffstat (limited to 'third_party/protobuf/3.6.0/src/google/protobuf/arenastring_unittest.cc')
-rw-r--r-- | third_party/protobuf/3.6.0/src/google/protobuf/arenastring_unittest.cc | 138 |
1 files changed, 138 insertions, 0 deletions
diff --git a/third_party/protobuf/3.6.0/src/google/protobuf/arenastring_unittest.cc b/third_party/protobuf/3.6.0/src/google/protobuf/arenastring_unittest.cc new file mode 100644 index 0000000000..adc44fe25c --- /dev/null +++ b/third_party/protobuf/3.6.0/src/google/protobuf/arenastring_unittest.cc @@ -0,0 +1,138 @@ +// 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. + +// Based on mvels@'s frankenstring. + +#include <google/protobuf/arenastring.h> + +#include <algorithm> +#include <cstdlib> +#include <memory> +#include <string> +#include <vector> + +#include <google/protobuf/stubs/logging.h> +#include <google/protobuf/stubs/common.h> +#include <gtest/gtest.h> +#include <google/protobuf/io/coded_stream.h> +#include <google/protobuf/io/zero_copy_stream_impl.h> + + +namespace google { +using google::protobuf::internal::ArenaStringPtr; + +namespace protobuf { + + +static string WrapString(const char* value) { + return value; +} + +// Test ArenaStringPtr with arena == NULL. +TEST(ArenaStringPtrTest, ArenaStringPtrOnHeap) { + ArenaStringPtr field; + ::std::string default_value = "default"; + field.UnsafeSetDefault(&default_value); + EXPECT_EQ(string("default"), field.Get()); + field.Set(&default_value, WrapString("Test short"), NULL); + EXPECT_EQ(string("Test short"), field.Get()); + field.Set(&default_value, WrapString("Test long long long long value"), NULL); + EXPECT_EQ(string("Test long long long long value"), field.Get()); + field.Set(&default_value, string(""), NULL); + field.Destroy(&default_value, NULL); + + ArenaStringPtr field2; + field2.UnsafeSetDefault(&default_value); + ::std::string* mut = field2.Mutable(&default_value, NULL); + EXPECT_EQ(mut, field2.Mutable(&default_value, NULL)); + EXPECT_EQ(mut, &field2.Get()); + EXPECT_NE(&default_value, mut); + EXPECT_EQ(string("default"), *mut); + *mut = "Test long long long long value"; // ensure string allocates storage + EXPECT_EQ(string("Test long long long long value"), field2.Get()); + field2.Destroy(&default_value, NULL); +} + +TEST(ArenaStringPtrTest, ArenaStringPtrOnArena) { + google::protobuf::Arena arena; + ArenaStringPtr field; + ::std::string default_value = "default"; + field.UnsafeSetDefault(&default_value); + EXPECT_EQ(string("default"), field.Get()); + field.Set(&default_value, WrapString("Test short"), &arena); + EXPECT_EQ(string("Test short"), field.Get()); + field.Set(&default_value, WrapString("Test long long long long value"), + &arena); + EXPECT_EQ(string("Test long long long long value"), field.Get()); + field.Set(&default_value, string(""), &arena); + field.Destroy(&default_value, &arena); + + ArenaStringPtr field2; + field2.UnsafeSetDefault(&default_value); + ::std::string* mut = field2.Mutable(&default_value, &arena); + EXPECT_EQ(mut, field2.Mutable(&default_value, &arena)); + EXPECT_EQ(mut, &field2.Get()); + EXPECT_NE(&default_value, mut); + EXPECT_EQ(string("default"), *mut); + *mut = "Test long long long long value"; // ensure string allocates storage + EXPECT_EQ(string("Test long long long long value"), field2.Get()); + field2.Destroy(&default_value, &arena); +} + +TEST(ArenaStringPtrTest, ArenaStringPtrOnArenaNoSSO) { + google::protobuf::Arena arena; + ArenaStringPtr field; + ::std::string default_value = "default"; + field.UnsafeSetDefault(&default_value); + EXPECT_EQ(string("default"), field.Get()); + + // Avoid triggering the SSO optimization by setting the string to something + // larger than the internal buffer. + field.Set(&default_value, WrapString("Test long long long long value"), + &arena); + EXPECT_EQ(string("Test long long long long value"), field.Get()); + field.Set(&default_value, string(""), &arena); + field.Destroy(&default_value, &arena); + + ArenaStringPtr field2; + field2.UnsafeSetDefault(&default_value); + ::std::string* mut = field2.Mutable(&default_value, &arena); + EXPECT_EQ(mut, field2.Mutable(&default_value, &arena)); + EXPECT_EQ(mut, &field2.Get()); + EXPECT_NE(&default_value, mut); + EXPECT_EQ(string("default"), *mut); + *mut = "Test long long long long value"; // ensure string allocates storage + EXPECT_EQ(string("Test long long long long value"), field2.Get()); + field2.Destroy(&default_value, &arena); +} + + +} // namespace protobuf +} // namespace google |