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 // Copyright 2005, 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.

 //

 // Author: wan@google.com (Zhanyong Wan)

 //

 // Tests for the Message class.

 #include "gtest/gtest-message.h"

 #include "gtest/gtest.h"

 namespace {

 using ::testing::Message;

 // A helper function that turns a Message into a C string.

 const char* ToCString(const Message& msg) {

   static testing::internal::String result;

   result = msg.GetString();

   return result.c_str();

 }

 // Tests the testing::Message class

 // Tests the default constructor.

 TEST(MessageTest, DefaultConstructor) {

   const Message msg;

   EXPECT_STREQ("", ToCString(msg));

 }

 // Tests the copy constructor.

 TEST(MessageTest, CopyConstructor) {

   const Message msg1("Hello");

   const Message msg2(msg1);

   EXPECT_STREQ("Hello", ToCString(msg2));

 }

 // Tests constructing a Message from a C-string.

 TEST(MessageTest, ConstructsFromCString) {

   Message msg("Hello");

   EXPECT_STREQ("Hello", ToCString(msg));

 }

 // Tests streaming a float.

 TEST(MessageTest, StreamsFloat) {

   const char* const s = ToCString(Message() << 1.23456F << " " << 2.34567F);

   // Both numbers should be printed with enough precision.

   EXPECT_PRED_FORMAT2(testing::IsSubstring, "1.234560", s);

   EXPECT_PRED_FORMAT2(testing::IsSubstring, " 2.345669", s);

 }

 // Tests streaming a double.

 TEST(MessageTest, StreamsDouble) {

   const char* const s = ToCString(Message() << 1260570880.4555497 << " "

                                   << 1260572265.1954534);

   // Both numbers should be printed with enough precision.

   EXPECT_PRED_FORMAT2(testing::IsSubstring, "1260570880.45", s);

   EXPECT_PRED_FORMAT2(testing::IsSubstring, " 1260572265.19", s);

 }

 // Tests streaming a non-char pointer.

 TEST(MessageTest, StreamsPointer) {

   int n = 0;

   int* p = &n;

   EXPECT_STRNE("(null)", ToCString(Message() << p));

 }

 // Tests streaming a NULL non-char pointer.

 TEST(MessageTest, StreamsNullPointer) {

   int* p = NULL;

   EXPECT_STREQ("(null)", ToCString(Message() << p));

 }

 // Tests streaming a C string.

 TEST(MessageTest, StreamsCString) {

   EXPECT_STREQ("Foo", ToCString(Message() << "Foo"));

 }

 // Tests streaming a NULL C string.

 TEST(MessageTest, StreamsNullCString) {

   char* p = NULL;

   EXPECT_STREQ("(null)", ToCString(Message() << p));

 }

 // Tests streaming std::string.

 TEST(MessageTest, StreamsString) {

   const ::std::string str("Hello");

   EXPECT_STREQ("Hello", ToCString(Message() << str));

 }

 // Tests that we can output strings containing embedded NULs.

 TEST(MessageTest, StreamsStringWithEmbeddedNUL) {

   const char char_array_with_nul[] =

       "Here's a NUL\0 and some more string";

   const ::std::string string_with_nul(char_array_with_nul,

                                       sizeof(char_array_with_nul) - 1);

   EXPECT_STREQ("Here's a NUL\\0 and some more string",

                ToCString(Message() << string_with_nul));

 }

 // Tests streaming a NUL char.

 TEST(MessageTest, StreamsNULChar) {

   EXPECT_STREQ("\\0", ToCString(Message() << '\0'));

 }

 // Tests streaming int.

 TEST(MessageTest, StreamsInt) {

   EXPECT_STREQ("123", ToCString(Message() << 123));

 }

 // Tests that basic IO manipulators (endl, ends, and flush) can be

 // streamed to Message.

 TEST(MessageTest, StreamsBasicIoManip) {

   EXPECT_STREQ("Line 1.\nA NUL char \\0 in line 2.",

                ToCString(Message() << "Line 1." << std::endl

                          << "A NUL char " << std::ends << std::flush

                          << " in line 2."));

 }

 // Tests Message::GetString()

 TEST(MessageTest, GetString) {

   Message msg;

   msg << 1 << " lamb";

   EXPECT_STREQ("1 lamb", msg.GetString().c_str());

 }

 // Tests streaming a Message object to an ostream.

 TEST(MessageTest, StreamsToOStream) {

   Message msg("Hello");

   ::std::stringstream ss;

   ss << msg;

   EXPECT_STREQ("Hello", testing::internal::StringStreamToString(&ss).c_str());

 }

 // Tests that a Message object doesn't take up too much stack space.

 TEST(MessageTest, DoesNotTakeUpMuchStackSpace) {

   EXPECT_LE(sizeof(Message), 16U);

 }

 }  // namespace