support/testing/tests/fs/test_squashfs.py

   1 import os
   2 import subprocess
   3
   4 import infra.basetest
   5
   6 class TestSquashfs(infra.basetest.BRTest):
   7     config = infra.basetest.BASIC_TOOLCHAIN_CONFIG + \
   8         """
   9         BR2_TARGET_ROOTFS_SQUASHFS=y
  10         # BR2_TARGET_ROOTFS_SQUASHFS4_GZIP is not set
  11         BR2_TARGET_ROOTFS_SQUASHFS4_LZ4=y
  12         # BR2_TARGET_ROOTFS_TAR is not set
  13         """
  14
  15     def test_run(self):
  16         unsquashfs_cmd = ["host/bin/unsquashfs", "-s", "images/rootfs.squashfs"]
  17         out = subprocess.check_output(unsquashfs_cmd,
  18                                       cwd=self.builddir,
  19                                       env={"LANG": "C"})
  20         out = out.splitlines()
  21         self.assertEqual(out[0],
  22                          "Found a valid SQUASHFS 4:0 superblock on images/rootfs.squashfs.")
  23         self.assertEqual(out[3], "Compression lz4")
  24
  25         img = os.path.join(self.builddir, "images", "rootfs.squashfs")
  26         subprocess.call(["truncate", "-s", "%1M", img])
  27
  28         self.emulator.boot(arch="armv7",
  29                            kernel="builtin",
  30                            kernel_cmdline=["root=/dev/mmcblk0",
  31                                            "rootfstype=squashfs"],
  32                            options=["-drive", "file={},if=sd,format=raw".format(img)])
  33         self.emulator.login()
  34
  35         cmd = "mount | grep '/dev/root on / type squashfs'"
  36         _, exit_code = self.emulator.run(cmd)
  37         self.assertEqual(exit_code, 0)