kumquat-buildroot/support/testing/tests/fs/test_squashfs.py

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import os
import subprocess
import infra.basetest
class TestSquashfs(infra.basetest.BRTest):
config = infra.basetest.BASIC_TOOLCHAIN_CONFIG + \
"""
BR2_TARGET_ROOTFS_SQUASHFS=y
# BR2_TARGET_ROOTFS_SQUASHFS4_GZIP is not set
BR2_TARGET_ROOTFS_SQUASHFS4_LZ4=y
# BR2_TARGET_ROOTFS_TAR is not set
"""
def test_run(self):
unsquashfs_cmd = ["host/bin/unsquashfs", "-s", "images/rootfs.squashfs"]
out = subprocess.check_output(unsquashfs_cmd,
cwd=self.builddir,
env={"LANG": "C"})
out = out.splitlines()
self.assertEqual(out[0],
"Found a valid SQUASHFS 4:0 superblock on images/rootfs.squashfs.")
self.assertEqual(out[3], "Compression lz4")
img = os.path.join(self.builddir, "images", "rootfs.squashfs")
subprocess.call(["truncate", "-s", "%1M", img])
self.emulator.boot(arch="armv7",
kernel="builtin",
kernel_cmdline=["root=/dev/mmcblk0",
"rootfstype=squashfs"],
options=["-drive", "file={},if=sd,format=raw".format(img)])
self.emulator.login()
cmd = "mount | grep '/dev/root on / type squashfs'"
_, exit_code = self.emulator.run(cmd)
self.assertEqual(exit_code, 0)