The file `tests/bluetooth/host/keys/bt_keys_get_addr/src/main.c` was using
functions from `tests/bluetooth/host/host_mocks/print_utils.c` which were
exactly the same as the one in `common/log.h`.
The code was duplicated because the test author wanted to include
`common/log.h` to get the stringifying functions, but could not due to
unwanted side-effects.
See the comment from the unit test author here:
https://github.com/zephyrproject-rtos/zephyr/pull/48676#discussion_r973672151
The new `common/bt_str.h` does not have side-effects, so it is
suitable for unit tests.
The `snprintk` function has been redefined inside the `main.c` to use the
libc because of the kernel being not compiled entirely.
Also, the `CONFIG_LOG`, `CONFIG_BT_DEBUG_LOG` and
`CONFIG_TEST_LOGGING_DEFAULTS` have been disabled in the Kconfig files
of each `keys` tests. That so logs are not compiled and so, there is
no need to link the `printk` functions that are used by the logs.
Signed-off-by: Théo Battrel <theo.battrel@nordicsemi.no>
Co-authored-by: Aleksander Wasaznik <aleksander.wasaznik@nordicsemi.no>
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