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@ -1,7 +1,7 @@ |
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Google C++ Testing Framework |
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============================ |
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http://code.google.com/p/googletest/ |
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https://github.com/google/googletest |
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Overview |
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-------- |
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@ -28,13 +28,14 @@ effort to support other platforms (e.g. Solaris, AIX, and z/OS). |
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However, since core members of the Google Test project have no access |
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to these platforms, Google Test may have outstanding issues there. If |
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you notice any problems on your platform, please notify |
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googletestframework@googlegroups.com. Patches for fixing them are |
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<googletestframework@googlegroups.com>. Patches for fixing them are |
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even more welcome! |
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### Linux Requirements ### |
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These are the base requirements to build and use Google Test from a source |
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package (as described below): |
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* GNU-compatible Make or gmake |
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* POSIX-standard shell |
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* POSIX(-2) Regular Expressions (regex.h) |
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@ -53,55 +54,44 @@ package (as described below): |
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* Mac OS X 10.4 Tiger or newer |
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* Developer Tools Installed |
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Also, you'll need CMake 2.6.4 or higher if you want to build the |
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samples using the provided CMake script, regardless of the platform. |
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Also, you'll need [CMake](http://www.cmake.org/ CMake) 2.6.4 or higher if |
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you want to build the samples using the provided CMake script, regardless |
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of the platform. |
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Requirements for Contributors |
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----------------------------- |
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We welcome patches. If you plan to contribute a patch, you need to |
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build Google Test and its own tests from an SVN checkout (described |
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build Google Test and its own tests from a git checkout (described |
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below), which has further requirements: |
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* Python version 2.3 or newer (for running some of the tests and |
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* [Python](http://python.org/) version 2.3 or newer (for running some of the tests and |
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re-generating certain source files from templates) |
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* CMake 2.6.4 or newer |
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* [CMake](http://www.cmake.org/) 2.6.4 or newer |
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Getting the Source |
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------------------ |
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There are two primary ways of getting Google Test's source code: you |
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can download a stable source release in your preferred archive format, |
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or directly check out the source from our Subversion (SVN) repository. |
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The SVN checkout requires a few extra steps and some extra software |
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Google Test's source is available from its GitHub repository at |
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<https://github.com/google/googletest>. |
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The GitHub repository offers stable tagged releases available as .ZIP archives. |
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A Git checkout requires a few extra steps and some extra software |
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packages on your system, but lets you track the latest development and |
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make patches much more easily, so we highly encourage it. |
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### Source Package ### |
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Google Test is released in versioned source packages which can be |
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downloaded from the download page [1]. Several different archive |
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formats are provided, but the only difference is the tools used to |
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manipulate them, and the size of the resulting file. Download |
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whichever you are most comfortable with. |
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[1] http://code.google.com/p/googletest/downloads/list |
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Once the package is downloaded, expand it using whichever tools you |
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prefer for that type. This will result in a new directory with the |
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name "gtest-X.Y.Z" which contains all of the source code. Here are |
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some examples on Linux: |
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Snapshots of Google Test's master branch can be |
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[https://github.com/google/googletest/archive/master.zip](downloaded directly). |
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tar -xvzf gtest-X.Y.Z.tar.gz |
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tar -xvjf gtest-X.Y.Z.tar.bz2 |
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unzip gtest-X.Y.Z.zip |
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Versioned releases are also available by clicking on |
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[https://github.com/google/googletest/releases](Releases) in the project page. |
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### SVN Checkout ### |
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### Git Checkout ### |
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To check out the main branch (also known as the "trunk") of Google |
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Test, run the following Subversion command: |
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To check out the master branch of Google Test, run the following git command: |
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svn checkout http://googletest.googlecode.com/svn/trunk/ gtest-svn |
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git clone https://github.com/google/googletest.git (via HTTPS) |
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Setting up the Build |
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-------------------- |
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@ -113,28 +103,28 @@ straightforward. |
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### Generic Build Instructions ### |
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Suppose you put Google Test in directory ${GTEST_DIR}. To build it, |
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Suppose you put Google Test in directory `${GTEST_DIR}`. To build it, |
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create a library build target (or a project as called by Visual Studio |
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and Xcode) to compile |
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${GTEST_DIR}/src/gtest-all.cc |
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${GTEST_DIR}/src/gtest-all.cc |
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with ${GTEST_DIR}/include in the system header search path and ${GTEST_DIR} |
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with `${GTEST_DIR}/include` in the system header search path and `${GTEST_DIR}` |
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in the normal header search path. Assuming a Linux-like system and gcc, |
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something like the following will do: |
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g++ -isystem ${GTEST_DIR}/include -I${GTEST_DIR} \ |
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-pthread -c ${GTEST_DIR}/src/gtest-all.cc |
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ar -rv libgtest.a gtest-all.o |
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g++ -isystem ${GTEST_DIR}/include -I${GTEST_DIR} \ |
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-pthread -c ${GTEST_DIR}/src/gtest-all.cc |
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ar -rv libgtest.a gtest-all.o |
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(We need -pthread as Google Test uses threads.) |
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(We need `-pthread` as Google Test uses threads.) |
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Next, you should compile your test source file with |
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${GTEST_DIR}/include in the system header search path, and link it |
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`${GTEST_DIR}/include` in the system header search path, and link it |
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with gtest and any other necessary libraries: |
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g++ -isystem ${GTEST_DIR}/include -pthread path/to/your_test.cc libgtest.a \ |
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-o your_test |
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g++ -isystem ${GTEST_DIR}/include -pthread path/to/your_test.cc libgtest.a \ |
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-o your_test |
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As an example, the make/ directory contains a Makefile that you can |
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use to build Google Test on systems where GNU make is available |
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@ -146,42 +136,42 @@ script. |
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If the default settings are correct for your environment, the |
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following commands should succeed: |
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cd ${GTEST_DIR}/make |
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make |
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./sample1_unittest |
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cd ${GTEST_DIR}/make |
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make |
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./sample1_unittest |
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If you see errors, try to tweak the contents of make/Makefile to make |
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them go away. There are instructions in make/Makefile on how to do |
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If you see errors, try to tweak the contents of `make/Makefile` to make |
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them go away. There are instructions in `make/Makefile` on how to do |
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it. |
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### Using CMake ### |
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Google Test comes with a CMake build script (CMakeLists.txt) that can |
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be used on a wide range of platforms ("C" stands for cross-platform.). |
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If you don't have CMake installed already, you can download it for |
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free from http://www.cmake.org/. |
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Google Test comes with a CMake build script ( |
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[CMakeLists.txt](https://github.com/google/googletest/blob/master/CMakeLists.txt)) that can be used on a wide range of platforms ("C" stands for |
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cross-platform.). If you don't have CMake installed already, you can |
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download it for free from <http://www.cmake.org/>. |
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CMake works by generating native makefiles or build projects that can |
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be used in the compiler environment of your choice. The typical |
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workflow starts with: |
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mkdir mybuild # Create a directory to hold the build output. |
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cd mybuild |
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cmake ${GTEST_DIR} # Generate native build scripts. |
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mkdir mybuild # Create a directory to hold the build output. |
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cd mybuild |
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cmake ${GTEST_DIR} # Generate native build scripts. |
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If you want to build Google Test's samples, you should replace the |
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last command with |
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cmake -Dgtest_build_samples=ON ${GTEST_DIR} |
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cmake -Dgtest_build_samples=ON ${GTEST_DIR} |
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If you are on a *nix system, you should now see a Makefile in the |
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If you are on a \*nix system, you should now see a Makefile in the |
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current directory. Just type 'make' to build gtest. |
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If you use Windows and have Visual Studio installed, a gtest.sln file |
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and several .vcproj files will be created. You can then build them |
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If you use Windows and have Visual Studio installed, a `gtest.sln` file |
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and several `.vcproj` files will be created. You can then build them |
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using Visual Studio. |
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On Mac OS X with Xcode installed, a .xcodeproj file will be generated. |
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On Mac OS X with Xcode installed, a `.xcodeproj` file will be generated. |
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### Legacy Build Scripts ### |
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@ -195,7 +185,7 @@ with your existing build system. |
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If you still need to use the legacy build scripts, here's how: |
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The msvc\ folder contains two solutions with Visual C++ projects. |
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Open the gtest.sln or gtest-md.sln file using Visual Studio, and you |
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Open the `gtest.sln` or `gtest-md.sln` file using Visual Studio, and you |
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are ready to build Google Test the same way you build any Visual |
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Studio project. Files that have names ending with -md use DLL |
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versions of Microsoft runtime libraries (the /MD or the /MDd compiler |
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@ -205,13 +195,13 @@ the same option to compile both gtest and the test code. If you use |
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Visual Studio 2005 or above, we recommend the -md version as /MD is |
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the default for new projects in these versions of Visual Studio. |
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On Mac OS X, open the gtest.xcodeproj in the xcode/ folder using |
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On Mac OS X, open the `gtest.xcodeproj` in the `xcode/` folder using |
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Xcode. Build the "gtest" target. The universal binary framework will |
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end up in your selected build directory (selected in the Xcode |
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"Preferences..." -> "Building" pane and defaults to xcode/build). |
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Alternatively, at the command line, enter: |
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xcodebuild |
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xcodebuild |
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This will build the "Release" configuration of gtest.framework in your |
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default build location. See the "xcodebuild" man page for more |
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@ -220,8 +210,9 @@ different locations. |
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If you wish to use the Google Test Xcode project with Xcode 4.x and |
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above, you need to either: |
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* update the SDK configuration options in xcode/Config/General.xconfig. |
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Comment options SDKROOT, MACOS_DEPLOYMENT_TARGET, and GCC_VERSION. If |
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Comment options `SDKROOT`, `MACOS_DEPLOYMENT_TARGET`, and `GCC_VERSION`. If |
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you choose this route you lose the ability to target earlier versions |
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of MacOS X. |
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* Install an SDK for an earlier version. This doesn't appear to be |
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@ -235,11 +226,11 @@ Google Test can be used in diverse environments. The default |
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configuration may not work (or may not work well) out of the box in |
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some environments. However, you can easily tweak Google Test by |
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defining control macros on the compiler command line. Generally, |
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these macros are named like GTEST_XYZ and you define them to either 1 |
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these macros are named like `GTEST_XYZ` and you define them to either 1 |
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or 0 to enable or disable a certain feature. |
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We list the most frequently used macros below. For a complete list, |
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see file include/gtest/internal/gtest-port.h. |
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see file [include/gtest/internal/gtest-port.h](https://github.com/google/googletest/blob/master/include/gtest/internal/gtest-port.h). |
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### Choosing a TR1 Tuple Library ### |
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@ -255,36 +246,36 @@ tell Google Test to use the same TR1 tuple library the rest of your |
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project uses, or the two tuple implementations will clash. To do |
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that, add |
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-DGTEST_USE_OWN_TR1_TUPLE=0 |
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-DGTEST_USE_OWN_TR1_TUPLE=0 |
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to the compiler flags while compiling Google Test and your tests. If |
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you want to force Google Test to use its own tuple library, just add |
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-DGTEST_USE_OWN_TR1_TUPLE=1 |
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-DGTEST_USE_OWN_TR1_TUPLE=1 |
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to the compiler flags instead. |
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If you don't want Google Test to use tuple at all, add |
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-DGTEST_HAS_TR1_TUPLE=0 |
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-DGTEST_HAS_TR1_TUPLE=0 |
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and all features using tuple will be disabled. |
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### Multi-threaded Tests ### |
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Google Test is thread-safe where the pthread library is available. |
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After #include "gtest/gtest.h", you can check the GTEST_IS_THREADSAFE |
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macro to see whether this is the case (yes if the macro is #defined to |
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After `#include "gtest/gtest.h"`, you can check the `GTEST_IS_THREADSAFE` |
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macro to see whether this is the case (yes if the macro is `#defined` to |
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1, no if it's undefined.). |
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If Google Test doesn't correctly detect whether pthread is available |
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in your environment, you can force it with |
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-DGTEST_HAS_PTHREAD=1 |
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-DGTEST_HAS_PTHREAD=1 |
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or |
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-DGTEST_HAS_PTHREAD=0 |
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-DGTEST_HAS_PTHREAD=0 |
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When Google Test uses pthread, you may need to add flags to your |
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compiler and/or linker to select the pthread library, or you'll get |
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@ -301,7 +292,7 @@ as a shared library (known as a DLL on Windows) if you prefer. |
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To compile *gtest* as a shared library, add |
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-DGTEST_CREATE_SHARED_LIBRARY=1 |
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-DGTEST_CREATE_SHARED_LIBRARY=1 |
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to the compiler flags. You'll also need to tell the linker to produce |
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a shared library instead - consult your linker's manual for how to do |
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@ -309,14 +300,14 @@ it. |
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To compile your *tests* that use the gtest shared library, add |
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-DGTEST_LINKED_AS_SHARED_LIBRARY=1 |
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-DGTEST_LINKED_AS_SHARED_LIBRARY=1 |
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to the compiler flags. |
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Note: while the above steps aren't technically necessary today when |
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using some compilers (e.g. GCC), they may become necessary in the |
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future, if we decide to improve the speed of loading the library (see |
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http://gcc.gnu.org/wiki/Visibility for details). Therefore you are |
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<http://gcc.gnu.org/wiki/Visibility> for details). Therefore you are |
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recommended to always add the above flags when using Google Test as a |
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shared library. Otherwise a future release of Google Test may break |
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your build script. |
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@ -332,17 +323,18 @@ conflict. |
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Specifically, if both Google Test and some other code define macro |
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FOO, you can add |
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-DGTEST_DONT_DEFINE_FOO=1 |
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-DGTEST_DONT_DEFINE_FOO=1 |
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to the compiler flags to tell Google Test to change the macro's name |
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from FOO to GTEST_FOO. Currently FOO can be FAIL, SUCCEED, or TEST. |
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For example, with -DGTEST_DONT_DEFINE_TEST=1, you'll need to write |
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from `FOO` to `GTEST_FOO`. Currently `FOO` can be `FAIL`, `SUCCEED`, |
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or `TEST`. For example, with `-DGTEST_DONT_DEFINE_TEST=1`, you'll |
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need to write |
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GTEST_TEST(SomeTest, DoesThis) { ... } |
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GTEST_TEST(SomeTest, DoesThis) { ... } |
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instead of |
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TEST(SomeTest, DoesThis) { ... } |
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TEST(SomeTest, DoesThis) { ... } |
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in order to define a test. |
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@ -388,22 +380,22 @@ To make sure your changes work as intended and don't break existing |
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functionality, you'll want to compile and run Google Test's own tests. |
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For that you can use CMake: |
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mkdir mybuild |
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cd mybuild |
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cmake -Dgtest_build_tests=ON ${GTEST_DIR} |
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mkdir mybuild |
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cd mybuild |
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cmake -Dgtest_build_tests=ON ${GTEST_DIR} |
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Make sure you have Python installed, as some of Google Test's tests |
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are written in Python. If the cmake command complains about not being |
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able to find Python ("Could NOT find PythonInterp (missing: |
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PYTHON_EXECUTABLE)"), try telling it explicitly where your Python |
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able to find Python (`Could NOT find PythonInterp (missing: |
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PYTHON_EXECUTABLE)`), try telling it explicitly where your Python |
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executable can be found: |
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cmake -DPYTHON_EXECUTABLE=path/to/python -Dgtest_build_tests=ON ${GTEST_DIR} |
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cmake -DPYTHON_EXECUTABLE=path/to/python -Dgtest_build_tests=ON ${GTEST_DIR} |
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Next, you can build Google Test and all of its own tests. On *nix, |
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Next, you can build Google Test and all of its own tests. On \*nix, |
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this is usually done by 'make'. To run the tests, do |
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make test |
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make test |
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All tests should pass. |
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@ -419,17 +411,17 @@ Normally you don't need to worry about regenerating the source files, |
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unless you need to modify them. In that case, you should modify the |
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corresponding .pump files instead and run the pump.py Python script to |
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regenerate them. You can find pump.py in the scripts/ directory. |
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Read the Pump manual [2] for how to use it. |
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[2] http://code.google.com/p/googletest/wiki/PumpManual |
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Read the [Pump manual](http://code.google.com/p/googletest/wiki/PumpManual) |
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for how to use it. |
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### Contributing a Patch ### |
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We welcome patches. Please read the Google Test developer's guide [3] |
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We welcome patches. Please read the |
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[Google Test developer's guide]( |
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http://code.google.com/p/googletest/wiki/GoogleTestDevGuide) |
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for how you can contribute. In particular, make sure you have signed |
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the Contributor License Agreement, or we won't be able to accept the |
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patch. |
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[3] http://code.google.com/p/googletest/wiki/GoogleTestDevGuide |
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Happy testing! |