Add supplementary header <zephyr/fff_extensions.h>. Add macro
to fff_extensions.h for simplifying definition of custom fake functions
needing call-unique information for producing desired output data.
When an array of custom fake context structures is defined and
the return field within the first structure instance is registered
with the standard SET_RETURN_SEQ() macro of FFF, the
RETURN_HANDLED_CONTEXT() macro provides the inverse logic to
recover the context structure for this called instance. The body of
the custom fake handler is provided to the RETURN_HANDLED_CONTEXT()
macro for appropriate execution and access to the custom fake
parameters.
A test suite is also provided to verify macro implementation and
illustrate usage. It is at:
zephyr/tests/subsys/testsuite/fff_fake_contexts/
This code was verified by:
1. (Pass) west build -p always \
-b unit_testing tests/subsys/testsuite/fff_fake_contexts/ && \
./build/testbinary
2. (Pass) west build -p always \
-b native_posix tests/subsys/testsuite/fff_fake_contexts/ && \
./build/zephyr/zephyr.exe
3. (Pass) ./scripts/twister -p unit_testing \
-T tests/subsys/testsuite/fff_fake_contexts/
4. (Pass) ./scripts/twister -p native_posix \
-T tests/subsys/testsuite/fff_fake_contexts/
5. (Pass) cd doc && build html-fast
Fix#55246
Signed-off-by: Gregory Shue <gregory.shue@legrand.com>
Gregory Shue