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Diffstat (limited to 'NorthstarDedicatedTest/include/protobuf/stubs/stringprintf_unittest.cc')
-rw-r--r-- | NorthstarDedicatedTest/include/protobuf/stubs/stringprintf_unittest.cc | 155 |
1 files changed, 155 insertions, 0 deletions
diff --git a/NorthstarDedicatedTest/include/protobuf/stubs/stringprintf_unittest.cc b/NorthstarDedicatedTest/include/protobuf/stubs/stringprintf_unittest.cc new file mode 100644 index 00000000..1736b3d5 --- /dev/null +++ b/NorthstarDedicatedTest/include/protobuf/stubs/stringprintf_unittest.cc @@ -0,0 +1,155 @@ +// Protocol Buffers - Google's data interchange format +// Copyright 2012 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. + +// from google3/base/stringprintf_unittest.cc + +#include <stubs/stringprintf.h> +#include <testing/googletest.h> +#include <gtest/gtest.h> + +#include <array> +#include <cerrno> +#include <string> + +namespace google { +namespace protobuf { +namespace { + +TEST(StringPrintfTest, Empty) { +#if 0 + // gcc 2.95.3, gcc 4.1.0, and gcc 4.2.2 all warn about this: + // warning: zero-length printf format string. + // so we do not allow them in google3. + EXPECT_EQ("", StringPrintf("")); +#endif + EXPECT_EQ("", StringPrintf("%s", std::string().c_str())); + EXPECT_EQ("", StringPrintf("%s", "")); +} + +TEST(StringPrintfTest, Misc) { +// MSVC and mingw does not support $ format specifier. +#if !defined(_MSC_VER) && !defined(__MINGW32__) + EXPECT_EQ("123hello w", StringPrintf("%3$d%2$s %1$c", 'w', "hello", 123)); +#endif // !_MSC_VER +} + +TEST(StringAppendFTest, Empty) { + std::string value("Hello"); + const char* empty = ""; + StringAppendF(&value, "%s", empty); + EXPECT_EQ("Hello", value); +} + +TEST(StringAppendFTest, EmptyString) { + std::string value("Hello"); + StringAppendF(&value, "%s", ""); + EXPECT_EQ("Hello", value); +} + +TEST(StringAppendFTest, String) { + std::string value("Hello"); + StringAppendF(&value, " %s", "World"); + EXPECT_EQ("Hello World", value); +} + +TEST(StringAppendFTest, Int) { + std::string value("Hello"); + StringAppendF(&value, " %d", 123); + EXPECT_EQ("Hello 123", value); +} + +TEST(StringPrintfTest, Multibyte) { + // If we are in multibyte mode and feed invalid multibyte sequence, + // StringPrintf should return an empty string instead of running + // out of memory while trying to determine destination buffer size. + // see b/4194543. + + char* old_locale_c = setlocale(LC_CTYPE, nullptr); + ASSERT_TRUE(old_locale_c != nullptr); + std::string old_locale = old_locale_c; + // Push locale with multibyte mode + setlocale(LC_CTYPE, "en_US.utf8"); + + const char kInvalidCodePoint[] = "\375\067s"; + std::string value = StringPrintf("%.*s", 3, kInvalidCodePoint); + + // In some versions of glibc (e.g. eglibc-2.11.1, aka GRTEv2), snprintf + // returns error given an invalid codepoint. Other versions + // (e.g. eglibc-2.15, aka pre-GRTEv3) emit the codepoint verbatim. + // We test that the output is one of the above. + EXPECT_TRUE(value.empty() || value == kInvalidCodePoint); + + // Repeat with longer string, to make sure that the dynamically + // allocated path in StringAppendV is handled correctly. + const size_t n = 2048; + std::array<char, n + 1> buf; + memset(&buf[0], ' ', n - 3); + memcpy(&buf[0] + n - 3, kInvalidCodePoint, 4); + value = StringPrintf("%.*s", n, &buf[0]); + // See GRTEv2 vs. GRTEv3 comment above. + EXPECT_TRUE(value.empty() || value == &buf[0]); + + setlocale(LC_CTYPE, old_locale.c_str()); +} + +TEST(StringPrintfTest, NoMultibyte) { + // No multibyte handling, but the string contains funny chars. + char* old_locale_c = setlocale(LC_CTYPE, nullptr); + ASSERT_TRUE(old_locale_c != nullptr); + std::string old_locale = old_locale_c; + setlocale(LC_CTYPE, "POSIX"); + std::string value = StringPrintf("%.*s", 3, "\375\067s"); + setlocale(LC_CTYPE, old_locale.c_str()); + EXPECT_EQ("\375\067s", value); +} + +TEST(StringPrintfTest, DontOverwriteErrno) { + // Check that errno isn't overwritten unless we're printing + // something significantly larger than what people are normally + // printing in their badly written PLOG() statements. + errno = ECHILD; + std::string value = StringPrintf("Hello, %s!", "World"); + EXPECT_EQ(ECHILD, errno); +} + +TEST(StringPrintfTest, LargeBuf) { + // Check that the large buffer is handled correctly. + int n = 2048; + char* buf = new char[n+1]; + memset(buf, ' ', n); + buf[n] = 0; + std::string value = StringPrintf("%s", buf); + EXPECT_EQ(buf, value); + delete[] buf; +} + +} // anonymous namespace +} // namespace protobuf +} // namespace google |