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third_party/gtest/README

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-Google C++ Testing Framework
-============================
-http://code.google.com/p/googletest/
-
-Overview
---------
-Google's framework for writing C++ tests on a variety of platforms (Linux, Mac
-OS X, Windows, Windows CE, Symbian, and etc). Based on the xUnit architecture.
-Supports automatic test discovery, a rich set of assertions, user-defined
-assertions, death tests, fatal and non-fatal failures, various options for
-running the tests, and XML test report generation.
-
-Please see the project page above for more information as well as mailing lists
-for questions, discussions, and development. There is also an IRC channel on
-OFTC (irc.oftc.net) #gtest available. Please join us!
-
-Requirements
-------------
-Google Test is designed to have fairly minimal requirements to build
-and use with your projects, but there are some. Currently, we support
-building Google Test on Linux, Windows, Mac OS X, and Cygwin.  We will
-also make our best effort to support other platforms (e.g. Solaris and
-IBM z/OS).  However, since core members of the Google Test project
-have no access to them, Google Test may have outstanding issues on
-these platforms.  If you notice any problems on your platform, please
-notify googletestframework@googlegroups.com (patches for fixing them
-are even more welcome!).
-
-### Linux Requirements ###
-These are the base requirements to build and use Google Test from a source
-package (as described below):
-  * GNU-compatible Make or "gmake"
-  * POSIX-standard shell
-  * POSIX(-2) Regular Expressions (regex.h)
-  * A C++98 standards compliant compiler
-
-Furthermore, if you are building Google Test from a VCS Checkout (also
-described below), there are further requirements:
-  * Automake version 1.9 or newer
-  * Autoconf version 2.59 or newer
-  * Libtool / Libtoolize
-  * Python version 2.4 or newer
-
-### Windows Requirements ###
-  * Microsoft Visual Studio 7.1 or newer
-
-### Cygwin Requirements ###
-  * Cygwin 1.5.25-14 or newer
-
-### Mac OS X Requirements ###
-  * Mac OS X 10.4 Tiger or newer
-  * Developer Tools Installed
-  * Optional: Xcode 2.5 or later for univeral-binary framework; see note below.
-
-Getting the Source
-------------------
-There are two primary ways of getting Google Test's source code: you can
-download a source release in your preferred archive format, or directly check
-out the source from a Version Control System (VCS, we use Google Code's
-Subversion hosting). The VCS checkout requires a few extra steps and some extra
-software packages on your system, but lets you track development, and make
-patches to contribute much more easily, so we highly encourage it.
-
-### VCS Checkout: ###
-The first step is to select whether you want to check out the main line of
-development on Google Test, or one of the released branches. The former will be
-much more active and have the latest features, but the latter provides much
-more stability and predictability. Choose whichever fits your needs best, and
-proceed with the following Subversion commands:
-
-  svn checkout http://googletest.googlecode.com/svn/trunk/ gtest-svn
-
-or for a release version X.Y.*'s branch:
-
-  svn checkout http://googletest.googlecode.com/svn/branches/release-X.Y/ \
-    gtest-X.Y-svn
-
-Next you will need to prepare the GNU Autotools build system, if you
-are using Linux, Mac OS X, or Cygwin. Enter the target directory of
-the checkout command you used ('gtest-svn' or 'gtest-X.Y-svn' above)
-and proceed with the following command:
-
-  autoreconf -fvi
-
-Once you have completed this step, you are ready to build the library. Note
-that you should only need to complete this step once. The subsequent `make'
-invocations will automatically re-generate the bits of the build system that
-need to be changed.
-
-If your system uses older versions of the autotools, the above command will
-fail. You may need to explicitly specify a version to use. For instance, if you
-have both GNU Automake 1.4 and 1.9 installed and `automake' would invoke the
-1.4, use instead:
-
-  AUTOMAKE=automake-1.9 ACLOCAL=aclocal-1.9 autoreconf -fvi
-
-Make sure you're using the same version of automake and aclocal.
-
-### Source Package: ###
-Google Test is also released in source packages which can be downloaded from
-its Google Code download page[1]. Several different archive formats are
-provided, but the only difference is the tools used to manipulate them, and the
-size of the resulting file. Download whichever you are most comfortable with.
-
-  [1] Google Test Downloads: http://code.google.com/p/googletest/downloads/list
-
-Once downloaded expand the archive using whichever tools you prefer for that
-type. This will always result in a new directory with the name "gtest-X.Y.Z"
-which contains all of the source code. Here are some examples in Linux:
-
-  tar -xvzf gtest-X.Y.Z.tar.gz
-  tar -xvjf gtest-X.Y.Z.tar.bz2
-  unzip gtest-X.Y.Z.zip
-
-Choosing a TR1 Tuple Library
-----------------------------
-Some Google Test features require the C++ Technical Report 1 (TR1)
-tuple library, which is not yet widely available with all compilers.
-The good news is that Google Test implements a subset of TR1 tuple
-that's enough for its own need, and will automatically use this when
-the compiler doesn't provide TR1 tuple.
-
-Usually you don't need to care about which tuple library Google Test
-uses.  However, if your project already uses TR1 tuple, you need to
-tell Google Test to use the same TR1 tuple library the rest of your
-project uses (this requirement is new in Google Test 1.4.0, so you may
-need to take care of it when upgrading from an earlier version), or
-the two tuple implementations will clash.  To do that, add
-
-  -DGTEST_USE_OWN_TR1_TUPLE=0
-
-to the compiler flags while compiling Google Test and your tests.
-
-If you don't want Google Test to use tuple at all, add
-
-  -DGTEST_HAS_TR1_TUPLE=0
-
-to the compiler flags.  All features using tuple will be disabled in
-this mode.
-
-Building the Source
--------------------
-### Linux, Mac OS X (without Xcode), and Cygwin ###
-There are two primary options for building the source at this point: build it
-inside the source code tree, or in a separate directory. We recommend building
-in a separate directory as that tends to produce both more consistent results
-and be easier to clean up should anything go wrong, but both patterns are
-supported. The only hard restriction is that while the build directory can be
-a subdirectory of the source directory, the opposite is not possible and will
-result in errors. Once you have selected where you wish to build Google Test,
-create the directory if necessary, and enter it. The following steps apply for
-either approach by simply substituting the shell variable SRCDIR with "." for
-building inside the source directory, and the relative path to the source
-directory otherwise.
-
-  ${SRCDIR}/configure  # Standard GNU configure script, --help for more info
-  make  # Standard makefile following GNU conventions
-  make check  # Builds and runs all tests - all should pass
-
-Other programs will only be able to use Google Test's functionality if you
-install it in a location which they can access, in Linux this is typically
-under '/usr/local'. The following command will install all of the Google Test
-libraries, public headers, and utilities necessary for other programs and
-libraries to leverage it:
-
-  sudo make install  # Not necessary, but allows use by other programs
-
-Should you need to remove Google Test from your system after having installed
-it, run the following command, and it will back out its changes.  However, note
-carefully that you must run this command on the *same* Google Test build that
-you ran the install from, or the results are not predictable.  If you install
-Google Test on your system, and are working from a VCS checkout, make sure you
-run this *before* updating your checkout of the source in order to uninstall
-the same version which you installed.
-
-  sudo make uninstall  # Must be run against the exact same build as "install"
-
-Your project can build against Google Test simply by leveraging the
-'gtest-config' script. This script can be invoked directly out of the 'scripts'
-subdirectory of the build tree, and it will be installed in the binary
-directory specified during the 'configure'. Here are some examples of its use,
-see 'gtest-config --help' for more detailed information.
-
-  gtest-config --min-version=1.0 || echo "Insufficient Google Test version."
-
-  g++ $(gtest-config --cppflags --cxxflags) -o foo.o -c foo.cpp
-  g++ $(gtest-config --ldflags --libs) -o foo foo.o
-
-  # When using a built but not installed Google Test:
-  g++ $(../../my_gtest_build/scripts/gtest-config ...) ...
-
-### Windows ###
-The msvc\ folder contains two solutions with Visual C++ projects. Open the
-gtest.sln or gtest-md.sln file using Visual Studio, and you are ready to
-build Google Test the same way you build any Visual Studio project. Files
-that have names ending with -md use DLL versions of Microsoft runtime
-libraries (the /MD or the /MDd compiler option). Files without that suffix
-use static versions of the runtime libraries (the /MT or the /MTd option).
-Please note that one must use the same option to compile both gtest and his
-test code. If you use Visual Studio 2005 or above, we recommend the -md
-version as /MD is the default for new projects in these versions of Visual
-Studio.
-
-### Mac OS X (universal-binary framework) ###
-Open the gtest.xcodeproj in the xcode/ folder using Xcode. Build the "gtest"
-target. The universal binary framework will end up in your selected build
-directory (selected in the Xcode "Preferences..." -> "Building" pane and
-defaults to xcode/build). Alternatively, at the command line, enter:
-
-  xcodebuild
-
-This will build the "Release" configuration of gtest.framework in your
-default build location. See the "xcodebuild" man page for more information about
-building different configurations and building in different locations.
-
-To test the gtest.framework in Xcode, change the active target to "Check" and
-then build. This target builds all of the tests and then runs them. Don't worry
-if you see some errors. Xcode reports all test failures (even the intentional
-ones) as errors. However, you should see a "Build succeeded" message at the end
-of the build log. To run all of the tests from the command line, enter:
-
-  xcodebuild -target Check
-
-Installation with xcodebuild requires specifying an installation desitination
-directory, known as the DSTROOT. Three items will be installed when using
-xcodebuild:
-
-  $DSTROOT/Library/Frameworks/gtest.framework
-  $DSTROOT/usr/local/lib/libgtest.a
-  $DSTROOT/usr/local/lib/libgtest_main.a
-
-You specify the installation directory on the command line with the other
-xcodebuild options. Here's how you would install in a user-visible location:
-
-  xcodebuild install DSTROOT=~
-
-To perform a system-wide inistall, escalate to an administrator and specify
-the file system root as the DSTROOT:
-
-  sudo xcodebuild install DSTROOT=/
-
-To uninstall gtest.framework via the command line, you need to delete the three
-items listed above. Remember to escalate to an administrator if deleting these
-from the system-wide location using the commands listed below:
-
-  sudo rm -r /Library/Frameworks/gtest.framework
-  sudo rm /usr/local/lib/libgtest.a
-  sudo rm /usr/local/lib/libgtest_main.a
-
-It is also possible to build and execute individual tests within Xcode. Each
-test has its own Xcode "Target" and Xcode "Executable". To build any of the
-tests, change the active target and the active executable to the test of
-interest and then build and run.
-
-Individual tests can be built from the command line using:
-
-  xcodebuild -target <test_name>
-
-These tests can be executed from the command line by moving to the build
-directory and then (in bash)
-
-  export DYLD_FRAMEWORK_PATH=`pwd`
-  ./<test_name>  # (e.g. ./gtest_unittest)
-
-To use gtest.framework for your own tests, first, install the framework using
-the steps described above. Then add it to your Xcode project by selecting
-Project->Add to Project... from the main menu. Next, add libgtest_main.a from
-gtest.framework/Resources directory using the same menu command. Finally,
-create a new executable target and add gtest.framework and libgtest_main.a to
-the "Link Binary With Libraries" build phase.
-
-### Using GNU Make ###
-The make/ directory contains a Makefile that you can use to build
-Google Test on systems where GNU make is available (e.g. Linux, Mac OS
-X, and Cygwin).  It doesn't try to build Google Test's own tests.
-Instead, it just builds the Google Test library and a sample test.
-You can use it as a starting point for your own Makefile.
-
-If the default settings are correct for your environment, the
-following commands should succeed:
-
-  cd ${SRCDIR}/make
-  make
-  ./sample1_unittest
-
-If you see errors, try to tweak the contents of make/Makefile to make
-them go away.  There are instructions in make/Makefile on how to do
-it.
-
-### Using Your Own Build System ###
-If none of the build solutions we provide works for you, or if you
-prefer your own build system, you just need to compile
-src/gtest-all.cc into a library and link your tests with it.  Assuming
-a Linux-like system and gcc, something like the following will do:
-
-  cd ${SRCDIR}
-  g++ -I. -I./include -c src/gtest-all.cc
-  ar -rv libgtest.a gtest-all.o
-  g++ -I. -I./include path/to/your_test.cc libgtest.a -o your_test
-
-Regenerating Source Files
--------------------------
-Some of Google Test's source files are generated from templates (not
-in the C++ sense) using a script.  A template file is named FOO.pump,
-where FOO is the name of the file it will generate.  For example, the
-file include/gtest/internal/gtest-type-util.h.pump is used to generate
-gtest-type-util.h in the same directory.
-
-Normally you don't need to worry about regenerating the source files,
-unless you need to modify them (e.g. if you are working on a patch for
-Google Test).  In that case, you should modify the corresponding .pump
-files instead and run the 'pump' script (for Pump is Useful for Meta
-Programming) to regenerate them.  We are still working on releasing
-the script and its documentation.  If you need it now, please email
-googletestframework@googlegroups.com such that we know to make it
-happen sooner.
-
-Happy testing!