Hello Hongxin,
I tested it in yocto , kernel is L4.19.35_1.1.0, see steps below, please!
# cd ~/imx-release-bsp-l4.19.35
# DISTRO=fsl-imx-wayland MACHINE=imx8mqevk source fsl-setup-release.sh -b build-wayland-imx8mq
# bitbake -c compile imx-test


done.
No problem.
# bitbake -c install imx-test
you will find all binary files of imx-tes in the directory:
~/imx-release-bsp-l4.19.35/build-wayland-imx8mq/tmp/work/aarch64-mx8m-poky-linux/imx-test/1_7.0+AUTOINC+709d14b037-r0/image/unit_tests

OK.
Have a nice day!
B.R,
Weidong