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https://github.com/SELinuxProject/selinux
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65 lines
2.3 KiB
Plaintext
65 lines
2.3 KiB
Plaintext
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Notes on tests
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============================
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The semanage_access_check test in the semanage_store suite simulates a
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read-only filesystem by using DAC permissions. Consequently, these tests
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will fail if run as root, as root can override DAC permissions.
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How to add and use unit tests
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=============================
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We are using the CUnit unit testing framework. This framework--and the
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official documentation of the framework--may be found here:
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http://cunit.sourceforge.net/
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If you have not yet installed CUnit, first do that. (There is an RPM,
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or you can compile from source.) Once installed, follow these steps to
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add unit tests for your code:
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1. Create a .h and .c file corresponding to the .c file you want to test.
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For example, test_semanage_store.c provides tests of the functions in
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semanage_store.c. Your new .h/.c files represent a suite of related
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tests.
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2. Write or add new tests to a suite. Tests are simply functions that
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take the form:
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void test_my_function(void)
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These tests are where you will make calls to the CUnit assertions.
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If you are making a new test suite, also add the suite init/cleanup
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functions. These take the form:
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int <suite_name>_test_init(void)
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int <suite_name>_cleanup(void)
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These functions will be called before and after the test functions
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in your suite, respectively. They return 0 on success, 1 on failure.
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3. Update libsemanage-tests.c to add your new suite and/or your new tests
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using the DECLARE_SUITE macro in do_tests().
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4. Update the Makefile:
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+ Make sure that the TESTSRC variable is set to the location
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of the libsemanage source code you want to test.
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5. Compile the libsemanage source code you will be testing, to ensure
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the object files are available and up to date.
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6. Run your tests. Rejoice or despair, as appropriate.
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A note on the the utilities.c: Add functions that can be commonly used
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here. For example, it is handy to have a dummy message callback
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function to silence error messages produced by libsemanage and keep
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your output pretty. To do this, include utilities.h and specify the
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callback like so:
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semanage_handle_t *sh;
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sh = semanage_handle_create();
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sh->msg_callback = test_msg_handler;
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Feel free to add other such functions here as well.
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