CONFIG_RELOCATABLE_TEST is not available for thedefaultarchitecture x86.
Result is shown for architecture powerpc

Test relocatable kernel

configname: CONFIG_RELOCATABLE_TEST

Linux Kernel Configuration
└─>Kernel options
└─>Test relocatable kernel
In linux kernel since version 4.1 (release Date: 2015-06-21)  
This runs the relocatable kernel at the address it was initially
loaded at, which tends to be non-zero and therefore test the
relocation code.