56 lines
2.5 KiB
Plaintext
56 lines
2.5 KiB
Plaintext
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src/tests: The FreeBSD test suite
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=================================
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This file describes the build infrastructure of the FreeBSD test suite.
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If you are only interested in using the test suite itself, please refer
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to tests(7) instead.
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The build of the test suite is organized in the following manner:
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* The build of all test artifacts is protected by the MK_TESTS knob.
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The user can disable these with the WITHOUT_TESTS setting in
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src.conf(5).
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* The goal for /usr/tests/ (the installed test programs) is to follow
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the same hierarchy as /usr/src/ wherever possible, which in turn drives
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several of the design decisions described below. This simplifies the
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discoverability of tests. We want a mapping such as:
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/usr/src/bin/cp/ -> /usr/tests/bin/cp/
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/usr/src/lib/libc/ -> /usr/tests/lib/libc/
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/usr/src/usr.bin/cut/ -> /usr/tests/usr.bin/cut/
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... and many more ...
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* Test programs for specific utilities and libraries are located next
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to the source code of such programs. For example, the tests for the
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src/lib/libcrypt/ library live in src/lib/libcrypt/tests/. The tests/
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subdirectory is optional and should, in general, be avoided.
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* The src/tests/ hierarchy (this directory) provides generic test
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infrastructure and glue code to join all test programs together into
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a single test suite definition.
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* The src/tests/ hierarchy also includes cross-functional test programs:
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i.e. test programs that cover more than a single utility or library
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and thus don't fit anywhere else in the tree. Consider this to follow
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the same rationale as src/share/man/: this directory contains generic
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manual pages while the manual pages that are specific to individual
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tools or libraries live next to the source code.
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In order to keep the src/tests/ hierarchy decoupled from the actual test
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programs being installed --which is a worthy goal because it simplifies
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the addition of new test programs and simplifies the maintenance of the
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tree-- the top-level Kyuafile does not know which subdirectories may
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exist upfront. Instead, such Kyuafile automatically detects, at
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run-time, which */Kyuafile files exist and uses those directly.
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Similarly, every directory in src/ that wants to install a Kyuafile to
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just recurse into other subdirectories reuses this Kyuafile with
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auto-discovery features. As an example, take a look at src/lib/tests/
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whose sole purpose is to install a Kyuafile into /usr/tests/lib/.
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The goal in this specific case is for /usr/tests/lib/ to be generated
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entirely from src/lib/.
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--
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$FreeBSD$
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