1 files changed, 40 insertions, 0 deletions
diff --git a/tests/unit_tests/README.md b/tests/unit_tests/README.md
new file mode 100644
index 0000000..de8adb4
--- /dev/null
+++ b/tests/unit_tests/README.md
@@ -0,0 +1,40 @@
+Unit Tests
+===========
+
+This directory contains unit tests for openvpn. New features/bugfixes should be written in a test friendly way and come with corresponding tests.
+
+Run tests
+----------
+
+Tests are run by `make check`. A failed tests stops test execution. To run all
+tests regardless of errors call `make -k check`.
+
+Add new tests to existing test suite
+-------------------------------------
+
+Test suites are organized in directories. [example_test/](example_test/) is an example
+for a test suite with two test executables. Feel free to use it as a template for new tests.
+
+Test suites
+--------------------
+
+Test suites live inside a subdirectory of `$ROOT/tests/unit_tests`, e.g. `$ROOT/tests/unit_tests/my_feature`.
+
+Test suites are configured by a `Makefile.am`. Tests are executed by testdrivers. One testsuite can contain more than one testdriver.
+
+### Hints
+* Name suites & testdrivers in a way that the name of the driver says something about which component/feature is tested
+* Name the testdriver executable `*_testdriver`. This way it gets picked up by the default `.gitignore`
+  * If this is not feasible: Add all output to a `.gitignore`* Use descriptive test names: `coffee_brewing__with_no_beans__fails` vs. `test34`
+* Testing a configurable feature?  Wrap test execution with a conditional (see [auth_pam](plugins/auth-pam/Makefile.am) for an example)
+* Add multiple test-drivers when one testdriver looks crowded with tests
+
+### New Test Suites
+1.  Organize tests in folders for features.
+2.  Add the new test directory to `SUBDIRS` in `Makefile.am`
+3.  Edit `configure.ac` and add the new `Makefile` to `AC_CONFIG_FILES`
+4.  Run `./configure`, and *enable* the feature you'd like to test
+5.  Make sure that `make check` runs your tests
+6.  Check: Would a stranger be able to easily find your tests by you looking at the test output?
+7. Run `./configure`, and *disable* the feature you'd like to test
+8.  Make sure that `make check` does *not run* your tests