googletest/README.md
2015-08-26 18:29:25 -04:00

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Welcome to **Google Test**, Google's C++ test framework!
This repository is a merger of the formerly separate GoogleTest and
GoogleMock projects. These were so closely related that it makes sense to
maintain and release them together.
## Google Test ##
Google Test conforms to the [XUnit](https://en.wikipedia.org/wiki/XUnit)
test framework pattern. It features:
* test discovery
* a rich set of assertions
* user-defined assertions
* death tests
* fatal and non-fatal failures
* value-parameterized tests
* type-parameterized tests
* various options for running the tests
* XML test report generation
## Platforms ##
Google test has been used on a variety of platforms:
* Linux
* Mac OS X
* Windows
* Cygwin
* MinGW
* Windows Mobile
* Symbian
## Who Is Using Google Test? ##
In addition to many internal projects at Google, Google Test is also used by
the following notable projects:
* The [Chromium projects](http://www.chromium.org/) (behind the Chrome
browser and Chrome OS).
* The [LLVM](http://llvm.org/) compiler.
* [Protocol Buffers](http://code.google.com/p/protobuf/), Google's data
interchange format.
* The [OpenCV](http://opencv.org/) computer vision library.
## Related Open Source Projects ##
[Google Test UI](http://code.google.com/p/gtest-gbar/) is test runner that runs
your test binary, allows you to track its progress via a progress bar, and
displays a list of test failures. Clicking on one shows failure text. Google
Test UI is written in C#.
[GTest TAP Listener](https://github.com/kinow/gtest-tap-listener) is an event
listener for Google Test that implements the
[TAP protocol](http://en.wikipedia.org/wiki/Test_Anything_Protocol) for test
result output. If your test runner understands TAP, you may find it useful.
## About Google Mock ##
**Google Mock** is an extension to Google Test for writing and using C++ mock classes.
It is inspired by [jMock](http://www.jmock.org/), [EasyMock](http://www.easymock.org/),
and [Hamcrest](http://code.google.com/p/hamcrest/), and designed with C++'s specifics in mind.
Google mock:
* lets you create mock classes trivially using simple macros.
* supports a rich set of matchers and actions.
* handles unordered, partially ordered, or completely ordered expectations.
* is extensible by users.
We hope you find it useful!
## Using Google Mock Without Google Test ##
Google Mock is not a testing framework itself. Instead, it needs a
testing framework for writing tests. Google Mock works seamlessly
with [Google Test](http://code.google.com/p/googletest/), butj
you can also use it with [any C++ testing framework](googlemock/ForDummies.md#Using_Google_Mock_with_Any_Testing_Framework).
## Getting Started ##
If you are new to the project, we suggest that you read the user
documentation in the following order:
* Learn the [basics](http://code.google.com/p/googletest/wiki/Primer) of
Google Test, if you choose to use Google Mock with it (recommended).
* Read [Google Mock for Dummies](ForDummies.md).
* Read the instructions on how to [build Google Mock](googlemock/README.md).
You can also watch Zhanyong's [talk](http://www.youtube.com/watch?v=sYpCyLI47rM) on Google Mock's usage and implementation.
Once you understand the basics, check out the rest of the docs:
* [CheatSheet](googlemock/docs/CheatSheet.md) - all the commonly used stuff at a glance.
* [CookBook](googlemock/docs/CookBook.md) - recipes for getting things done, including advanced techniques.
If you need help, please check the [KnownIssues](googlemock/docs/KnownIssues.md) and
[FrequentlyAskedQuestions](googlemock/docs/frequentlyaskedquestions.md) before
posting a question on the [googlemock discussion group](http://groups.google.com/group/googlemock).
### 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.
You don't need to worry about regenerating the source files
unless you need to modify them. You would then modify the
corresponding `.pump` files and run the '[pump.py](googletest/scripts/pump.py)'
generator script. See the [Pump Manual](googletest/docs/PumpManual.md).
### Contributing Code ###
We welcome patches. Please read the [Developer's Guide](docs/DevGuide.md)
for how you can contribute. In particular, make sure you have signed
the Contributor License Agreement, or we won't be able to accept the
patch.
Happy testing!