support/testing/tests/fs/test_ubi.py

   1 import subprocess
   2 import os
   3
   4 import infra.basetest
   5
   6 class TestUbi(infra.basetest.BRTest):
   7     config = infra.basetest.BASIC_TOOLCHAIN_CONFIG + \
   8         """
   9         BR2_TARGET_ROOTFS_UBIFS=y
  10         BR2_TARGET_ROOTFS_UBIFS_LEBSIZE=0x7ff80
  11         BR2_TARGET_ROOTFS_UBIFS_MINIOSIZE=0x1
  12         BR2_TARGET_ROOTFS_UBI=y
  13         BR2_TARGET_ROOTFS_UBI_PEBSIZE=0x80000
  14         BR2_TARGET_ROOTFS_UBI_SUBSIZE=1
  15         """
  16
  17     # TODO: if you boot Qemu twice on the same UBI image, it fails to
  18     # attach the image the second time, with "ubi0 error:
  19     # ubi_read_volume_table: the layout volume was not found".
  20     # To be investigated.
  21     def test_run(self):
  22         img = os.path.join(self.builddir, "images", "rootfs.ubi")
  23         out = subprocess.check_output(["file", img],
  24                                       cwd=self.builddir,
  25                                       env={"LANG": "C"})
  26         out = out.splitlines()
  27
  28         subprocess.call(["truncate", "-s 128M", img])
  29
  30         self.emulator.boot(arch="armv7",
  31                            kernel="builtin",
  32                            kernel_cmdline=["root=ubi0:rootfs",
  33                                            "ubi.mtd=0",
  34                                            "rootfstype=ubifs"],
  35                            options=["-drive", "file={},if=pflash".format(img)])
  36         self.emulator.login()
  37         cmd = "mount | grep 'ubi0:rootfs on / type ubifs'"
  38         _, exit_code = self.emulator.run(cmd)
  39         self.assertEqual(exit_code, 0)