Fence instruction test doesn't exist

[nfhktwrbq]

In The RISC-V Instruction Set Manual in the chapter 2 (RV32I Base Integer Instruction Set) there is fence and fence.i instructions.
But I found only test for fence.i (https://github.com/riscv-software-src/riscv-tests/blob/master/isa/rv32ui/fence_i.S).
Why there is no test for fence instruction? The test set rv32ui is incomplete.