Last change
on this file since 3861 was 3621, checked in by Bruno Cornec, 8 years ago |
New 3?3 banch for incorporation of latest busybox 1.25. Changing minor version to handle potential incompatibilities.
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[3621] | 1 | Busybox unit test framework
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| 2 | ===========================
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| 3 |
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| 4 | This document describes what you need to do to write test cases using the
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| 5 | Busybox unit test framework.
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| 6 |
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| 7 |
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| 8 | Building unit tests
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| 9 | -------------------
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| 10 |
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| 11 | The framework and all tests are built as a regular Busybox applet if option
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| 12 | CONFIG_UNIT_TEST (found in General Configuration -> Debugging Options) is set.
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| 13 |
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| 14 |
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| 15 | Writing test cases
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| 16 | ------------------
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| 17 |
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| 18 | Unit testing interface can be found in include/bbunit.h.
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| 19 |
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| 20 | Tests can be placed in any .c file in Busybox tree - preferably right next to
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| 21 | the functions they test. Test cases should be enclosed within an #if, and
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| 22 | should start with BBUNIT_DEFINE_TEST macro and end with BBUNIT_ENDTEST within
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| 23 | the test curly brackets. If an assertion fails the test ends immediately, ie.
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| 24 | the following assertions will not be reached. Any code placed after
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| 25 | BBUNIT_ENDTEST is executed regardless of the test result. Here's an example:
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| 26 |
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| 27 | #if ENABLE_UNIT_TEST
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| 28 |
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| 29 | BBUNIT_DEFINE_TEST(test_name)
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| 30 | {
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| 31 | int *i;
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| 32 |
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| 33 | i = malloc(sizeof(int));
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| 34 | BBUNIT_ASSERT_NOTNULL(i);
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| 35 | *i = 2;
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| 36 | BBUNIT_ASSERT_EQ((*i)*(*i), 4);
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| 37 |
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| 38 | BBUNIT_ENDTEST;
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| 39 |
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| 40 | free(i);
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| 41 | }
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| 42 |
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| 43 | #endif /* ENABLE_UNIT_TEST */
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| 44 |
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| 45 |
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| 46 | Running the unit test suite
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| 47 | ---------------------------
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| 48 |
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| 49 | To run the tests you can either directly run 'busybox unit' or use 'make test'
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| 50 | to run both the unit tests (if compiled) and regular test suite.
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