support/testing: add lvm2 runtime test
Signed-off-by: Julien Olivain <ju.o@free.fr> Signed-off-by: Arnout Vandecappelle <arnout@mind.be>
This commit is contained in:
Julien Olivain
Arnout Vandecappelle
parent
e3ff479443
commit
79f7d71640
@ -1814,6 +1814,8 @@ F: support/testing/tests/package/test_libgpgme.py
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F: support/testing/tests/package/test_libjxl.py
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F: support/testing/tests/package/test_lrzip.py
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F: support/testing/tests/package/test_ltrace.py
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F: support/testing/tests/package/test_lvm2.py
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F: support/testing/tests/package/test_lvm2/
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F: support/testing/tests/package/test_lzip.py
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F: support/testing/tests/package/test_lsof.py
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F: support/testing/tests/package/test_lz4.py
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163
support/testing/tests/package/test_lvm2.py
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163
support/testing/tests/package/test_lvm2.py
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@ -0,0 +1,163 @@
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import os
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import subprocess
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import infra.basetest
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class TestLvm2(infra.basetest.BRTest):
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# This test creates a lvm2 volume. A specific Kernel need to be
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# built with a config fragment enabling this support. This test
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# also uses resize2fs from e2fsprogs.
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kernel_fragment = \
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infra.filepath("tests/package/test_lvm2/linux-lvm2.fragment")
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config = \
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f"""
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BR2_aarch64=y
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BR2_TOOLCHAIN_EXTERNAL=y
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BR2_TARGET_GENERIC_GETTY_PORT="ttyAMA0"
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BR2_LINUX_KERNEL=y
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BR2_LINUX_KERNEL_CUSTOM_VERSION=y
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BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="6.1.77"
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BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
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BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="board/qemu/aarch64-virt/linux.config"
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BR2_LINUX_KERNEL_CONFIG_FRAGMENT_FILES="{kernel_fragment}"
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BR2_LINUX_KERNEL_NEEDS_HOST_OPENSSL=y
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BR2_PACKAGE_E2FSPROGS=y
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BR2_PACKAGE_E2FSPROGS_RESIZE2FS=y
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BR2_PACKAGE_LVM2=y
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BR2_TARGET_ROOTFS_CPIO=y
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BR2_TARGET_ROOTFS_CPIO_GZIP=y
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# BR2_TARGET_ROOTFS_TAR is not set
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"""
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def get_free_disk_space(self, path):
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out, ret = self.emulator.run(f"df -k {path}")
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self.assertEqual(ret, 0)
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return int(out[1].split()[3])
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def test_run(self):
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# Test configuration:
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storage_devs = ["/dev/vda", "/dev/vdb", "/dev/vdc"]
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storage_size = 16 # Mega Bytes
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lvm_vg = "br_vg" # Volume Group name
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lvm_lv = "br_lv" # Logical Volume name
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lv_dev = f"/dev/{lvm_vg}/{lvm_lv}" # Logical Volume dev name
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mnt_pt = "/mnt/lvm2-storage"
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data_file = f"{mnt_pt}/data.bin"
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qemu_storage_opts = []
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for i in range(len(storage_devs)):
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disk_file = os.path.join(self.builddir, "images", f"disk{i}.img")
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self.emulator.logfile.write(f"Creating disk image: {disk_file}\n")
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self.emulator.logfile.flush()
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subprocess.check_call(
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["dd", "if=/dev/zero", f"of={disk_file}",
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"bs=1M", f"count={storage_size}"],
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stdout=self.emulator.logfile,
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stderr=self.emulator.logfile)
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opts = ["-drive", f"file={disk_file},if=virtio,format=raw"]
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qemu_storage_opts += opts
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img = os.path.join(self.builddir, "images", "rootfs.cpio.gz")
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kern = os.path.join(self.builddir, "images", "Image")
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self.emulator.boot(arch="aarch64",
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kernel=kern,
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kernel_cmdline=["console=ttyAMA0"],
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options=["-M", "virt", "-cpu", "cortex-a57", "-m", "256M",
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"-initrd", img] + qemu_storage_opts)
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self.emulator.login()
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# Test the program can execute.
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self.assertRunOk("lvm version")
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# We did not created any Physical Volume yet. We should NOT
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# see any of our storage devices in a pvscan.
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out, ret = self.emulator.run("pvscan")
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self.assertEqual(ret, 0)
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for dev in storage_devs:
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self.assertNotIn(dev, "\n".join(out))
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# We initialize our Physical Volumes (PVs).
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pv_devs = " ".join(storage_devs)
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self.assertRunOk(f"pvcreate {pv_devs}")
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# We run few diagnostic commands related to PVs.
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self.assertRunOk(f"pvck {pv_devs}")
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self.assertRunOk(f"pvdisplay {pv_devs}")
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self.assertRunOk("pvs")
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# Now we initialized the PVs, we should see them in a pvscan.
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out, ret = self.emulator.run("pvscan")
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self.assertEqual(ret, 0)
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for dev in storage_devs:
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self.assertIn(dev, "\n".join(out))
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# We create a Volume Group (VG) including two of our three
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# PVs.
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cmd = f"vgcreate {lvm_vg} {storage_devs[0]} {storage_devs[1]}"
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self.assertRunOk(cmd)
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# We run few diagnostic commands related to VGs.
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self.assertRunOk(f"vgck {lvm_vg}")
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self.assertRunOk(f"vgdisplay {lvm_vg}")
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self.assertRunOk("vgscan")
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self.assertRunOk("vgs")
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# We create a Logical Volume (LV) in our VG.
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self.assertRunOk(f"lvcreate -l 100%FREE -n {lvm_lv} {lvm_vg}")
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# We check LVM created the LV device.
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self.assertRunOk(f"ls -al {lv_dev}")
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# We run few diagnostic commands related to LVs.
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self.assertRunOk("lvscan")
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self.assertRunOk("lvs")
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# We create a ext4 filesystem on our LV.
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self.assertRunOk(f"mkfs.ext4 {lv_dev}")
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# We create a mount point directory and mount the device.
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self.assertRunOk(f"mkdir -p {mnt_pt}")
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self.assertRunOk(f"mount {lv_dev} {mnt_pt}")
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# We create a data file in our new filesystem. Note: this file
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# is slightly larger than a single PV. This data file should
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# span over the two PVs in the VG.
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data_size = storage_size + 4
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cmd = f"dd if=/dev/urandom of={data_file} bs=1M count={data_size}"
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self.assertRunOk(cmd)
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# We compute the hash of our data, and save it for later.
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hash_cmd = f"sha256sum {data_file}"
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out, ret = self.emulator.run(hash_cmd)
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self.assertEqual(ret, 0)
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data_sha256 = out[0]
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# We compute the free space of the mount point.
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fs_free_space = self.get_free_disk_space(mnt_pt)
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# We extend of VG with our third PV.
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self.assertRunOk(f"vgextend {lvm_vg} {storage_devs[2]}")
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# We grow the LV to use all the space of the VG.
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self.assertRunOk(f"lvresize -l +100%FREE {lvm_vg}/{lvm_lv}")
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# We resize the filesystem to use all the LV space.
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self.assertRunOk(f"resize2fs {lv_dev}")
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# Now we grew the LV and resized the filesystem, we recompute
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# the free space and check we have more.
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fs2_free_space = self.get_free_disk_space(mnt_pt)
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self.assertGreater(fs2_free_space, fs_free_space)
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# With all those on-the-fly operations on the mounted
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# filesystem, the data file should be intact. We should
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# recompute the same data checksum as before.
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out, ret = self.emulator.run(hash_cmd)
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self.assertEqual(ret, 0)
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self.assertEqual(out[0], data_sha256)
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# Finally, we unmount the filesystem. It should not contain
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# any error.
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self.assertRunOk(f"umount {mnt_pt}")
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self.assertRunOk(f"e2fsck -f -n {lv_dev}")
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@ -0,0 +1,2 @@
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CONFIG_MD=y
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CONFIG_BLK_DEV_DM=y
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