test/spi_mmap: lint and autoformat with Ruff

test/test_spi_mmap.py

@@ -6,22 +6,23 @@
 # SPDX-License-Identifier: BSD-2-Clause
 
 import unittest
-import random
 
-from migen import *
+from migen import Record
 
-from litex.gen.sim import *
+from litex.gen.sim import run_simulation
 
 from litex.soc.cores.spi.spi_mmap import SPIMaster
 
+
 class TestSPIMMAP(unittest.TestCase):
     def test_spi_master(self):
         pads = Record([("clk", 1), ("cs_n", 4), ("mosi", 1), ("miso", 1)])
         dut = SPIMaster(pads=pads, data_width=32, sys_clk_freq=int(100e6))
+
         def generator(dut):
             data = [
                 0x12345678,
-                0xdeadbeef,
+                0xDEADBEEF,
             ]
             # data = [
             #    0x80000001,