Ejemplo n.º 1
0
 def test_raw_disk_blockresize():
     """
     Test blockresize for raw type device which has backing chain element.
     """
     new_size = params.get('expected_block_size')
     result = virsh.blockresize(vm_name,
                                test_obj.snap_path_list[-1],
                                new_size,
                                debug=True)
     libvirt.check_exit_status(result)
     check_obj.check_image_info(test_obj.snap_path_list[-1], 'vsize',
                                new_size)
def run(test, params, env):
    """
    Test virsh blockresize command for block device of domain.

    1) Init the variables from params.
    2) Create an image with specified format.
    3) Attach a disk image to vm.
    4) Test blockresize for the disk
    5) Detach the disk
    """

    # MAIN TEST CODE ###
    # Process cartesian parameters
    vm_name = params.get("main_vm", "virt-tests-vm1")
    image_format = params.get("disk_image_format", "qcow2")
    initial_disk_size = params.get("initial_disk_size", "500K")
    status_error = "yes" == params.get("status_error", "yes")
    resize_value = params.get("resize_value")
    virsh_dargs = {'debug': True}
    vm = env.get_vm(vm_name)
    if vm.is_alive():
        vm.destroy()
        vm.start()

    # Skip 'qed' cases for libvirt version greater than 1.1.0
    if libvirt_version.version_compare(1, 1, 0):
        if image_format == "qed":
            raise error.TestNAError("QED support changed, check bug: "
                                    "https://bugzilla.redhat.com/show_bug.cgi"
                                    "?id=731570")

    # Create an image.
    tmp_dir = data_dir.get_tmp_dir()
    image_path = os.path.join(tmp_dir, "blockresize_test")
    logging.info("Create image: %s, "
                 "size %s, "
                 "format %s", image_path, initial_disk_size, image_format)

    cmd = "qemu-img create -f %s %s %s" % (image_format, image_path,
                                           initial_disk_size)
    status, output = commands.getstatusoutput(cmd)
    if status:
        raise error.TestError("Creating image file %s failed: %s" %
                              (image_path, output))

    # Hotplug the image as disk device
    result = virsh.attach_disk(vm_name,
                               source=image_path,
                               target="vdd",
                               extra=" --subdriver %s" % image_format)
    if result.exit_status:
        raise error.TestError("Failed to attach disk %s to VM: %s." %
                              (image_path, result.stderr))

    if resize_value == "over_size":
        # Use byte unit for over_size test
        resize_value = "%s" % OVER_SIZE + "b"

    # Run the test
    try:
        result = virsh.blockresize(vm_name, image_path, resize_value,
                                   **virsh_dargs)
        status = result.exit_status
        err = result.stderr.strip()

        # Check status_error
        if status_error:
            if status == 0 or err == "":
                raise error.TestFail("Expect failure, but run successfully!")
            # No need to do more test
            return
        else:
            if status != 0 or err != "":
                # bz 1002813 will result in an error on this
                err_str = "unable to execute QEMU command 'block_resize': Could not resize: Invalid argument"
                if resize_value[-2] in "kb" and re.search(err_str, err):
                    raise error.TestNAError("BZ 1002813 not yet applied")
                else:
                    raise error.TestFail("Run failed with right "
                                         "virsh blockresize command")

        # Although kb should not be used, libvirt/virsh will accept it and
        # consider it as a 1000 bytes, which caused issues for qed & qcow2
        # since they expect a value evenly divisible by 512 (hence bz 1002813).
        if "kb" in resize_value:
            value = int(resize_value[:-2])
            if image_format in ["qed", "qcow2"]:
                # qcow2 and qed want a VIR_ROUND_UP value based on 512 byte
                # sectors - hence this less than visually appealing formula
                expected_size = (((value * 1000) + 512 - 1) / 512) * 512
            else:
                # Raw images...
                # Ugh - there's some rather ugly looking math when kb
                # (or mb, gb, tb, etc.) are used as the scale for the
                # value to create an image. The blockresize for the
                # running VM uses a qemu json call which differs from
                # qemu-img would do - resulting in (to say the least)
                # awkward sizes. We'll just have to make sure we don't
                # deviates more than a sector.
                expected_size = value * 1000
        elif "kib" in resize_value:
            value = int(resize_value[:-3])
            expected_size = value * 1024
        elif resize_value[-1] in "b":
            expected_size = int(resize_value[:-1])
        elif resize_value[-1] in "k":
            value = int(resize_value[:-1])
            expected_size = value * 1024
        elif resize_value[-1] == "m":
            value = int(resize_value[:-1])
            expected_size = value * 1024 * 1024
        elif resize_value[-1] == "g":
            value = int(resize_value[:-1])
            expected_size = value * 1024 * 1024 * 1024
        else:
            raise error.TestError("Unknown scale value")

        image_info = utils_misc.get_image_info(image_path)
        actual_size = int(image_info['vsize'])

        logging.info(
            "The expected block size is %s bytes, "
            "the actual block size is %s bytes", expected_size, actual_size)

        # See comment above regarding Raw images
        if image_format == "raw" and resize_value[-2] in "kb":
            if abs(int(actual_size) - int(expected_size)) > 512:
                raise error.TestFail("New raw blocksize set by blockresize do "
                                     "not match the expected value")
        else:
            if int(actual_size) != int(expected_size):
                raise error.TestFail("New blocksize set by blockresize is "
                                     "different from actual size from "
                                     "'qemu-img info'")
    finally:
        virsh.detach_disk(vm_name, target="vdd")

        if os.path.exists(image_path):
            os.remove(image_path)
Ejemplo n.º 3
0
def run(test, params, env):
    """
    Test virsh blockresize command for block device of domain.

    1) Init the variables from params.
    2) Create an image with specified format.
    3) Attach a disk image to vm.
    4) Test blockresize for the disk
    5) Detach the disk
    """

    # MAIN TEST CODE ###
    # Process cartesian parameters
    vm_name = params.get("main_vm", "virt-tests-vm1")
    image_format = params.get("disk_image_format", "qcow2")
    initial_disk_size = params.get("initial_disk_size", "1M")
    status_error = "yes" == params.get("status_error", "yes")
    resize_value = params.get("resize_value")
    virsh_dargs = {'debug': True}

    # Create an image.
    tmp_dir = data_dir.get_tmp_dir()
    image_path = os.path.join(tmp_dir, "blockresize_test")
    logging.info("Create image: %s, "
                 "size %s, "
                 "format %s", image_path, initial_disk_size, image_format)

    cmd = "qemu-img create -f %s %s %s" % (image_format, image_path,
                                           initial_disk_size)
    status, output = commands.getstatusoutput(cmd)
    if status:
        raise error.TestError("Creating image file %s failed: %s" % \
                                (image_path, output))

    # Hotplug the image as disk device
    result = virsh.attach_disk(vm_name, source=image_path, target="vdd",
                               extra=" --subdriver %s" % image_format)
    if result.exit_status:
        raise error.TestError("Failed to attach disk %s to VM: %s." %
                                (image_path, result.stderr))

    if resize_value == "over_size":
        # Use byte unit for over_size test
        resize_value = "%s" % OVER_SIZE + "b"

    # Run the test
    try:
        result = virsh.blockresize(vm_name, image_path,
                                   resize_value, **virsh_dargs)
        status = result.exit_status
        err = result.stderr.strip()

        # Check status_error
        if status_error:
            if status == 0 or err == "":
                raise error.TestFail("Expect failure, but run successfully!")
            # No need to do more test
            return
        else:
            if status != 0 or err != "":
                raise error.TestFail("Run failed with right "
                                     "virsh blockresize command")

        if resize_value[-1] in "bkm":
            expected_size = 1024*1024
        elif resize_value[-1] == "g":
            expected_size = 1024*1024*1024
        else:
            raise  error.TestError("Unknown infomation of unit")

        image_info = utils_misc.get_image_info(image_path)
        actual_size = int(image_info['vsize'])

        logging.info("The expected block size is %s bytes,"
                     "the actual block size is %s bytes",
                     expected_size, actual_size)

        if int(actual_size) != int(expected_size):
            raise error.TestFail("New blocksize set by blockresize is "
                                 "different from actual size from "
                                 "'qemu-img info'")
    finally:
        virsh.detach_disk(vm_name, target="vdd")

        if os.path.exists(image_path):
            os.remove(image_path)
Ejemplo n.º 4
0
def run(test, params, env):
    """
    Test virsh blockresize command for block device of domain.

    1) Init the variables from params.
    2) Create an image with specified format.
    3) Attach a disk image to vm.
    4) Test blockresize for the disk
    5) Detach the disk
    """

    # MAIN TEST CODE ###
    # Process cartesian parameters
    vm_name = params.get("main_vm", "virt-tests-vm1")
    image_format = params.get("disk_image_format", "qcow2")
    initial_disk_size = params.get("initial_disk_size", "500K")
    status_error = "yes" == params.get("status_error", "yes")
    resize_value = params.get("resize_value")
    virsh_dargs = {'debug': True}

    # Skip 'qed' cases for libvirt version greater than 1.1.0
    if libvirt_version.version_compare(1, 1, 0):
        if image_format == "qed":
            raise error.TestNAError("QED support changed, check bug: "
                                    "https://bugzilla.redhat.com/show_bug.cgi"
                                    "?id=731570")

    # Create an image.
    tmp_dir = data_dir.get_tmp_dir()
    image_path = os.path.join(tmp_dir, "blockresize_test")
    logging.info("Create image: %s, "
                 "size %s, "
                 "format %s", image_path, initial_disk_size, image_format)

    cmd = "qemu-img create -f %s %s %s" % (image_format, image_path,
                                           initial_disk_size)
    status, output = commands.getstatusoutput(cmd)
    if status:
        raise error.TestError("Creating image file %s failed: %s"
                              % (image_path, output))

    # Hotplug the image as disk device
    result = virsh.attach_disk(vm_name, source=image_path, target="vdd",
                               extra=" --subdriver %s" % image_format)
    if result.exit_status:
        raise error.TestError("Failed to attach disk %s to VM: %s."
                              % (image_path, result.stderr))

    if resize_value == "over_size":
        # Use byte unit for over_size test
        resize_value = "%s" % OVER_SIZE + "b"

    # Run the test
    try:
        result = virsh.blockresize(vm_name, image_path,
                                   resize_value, **virsh_dargs)
        status = result.exit_status
        err = result.stderr.strip()

        # Check status_error
        if status_error:
            if status == 0 or err == "":
                raise error.TestFail("Expect failure, but run successfully!")
            # No need to do more test
            return
        else:
            if status != 0 or err != "":
                # bz 1002813 will result in an error on this
                err_str = "unable to execute QEMU command 'block_resize': Could not resize: Invalid argument"
                if resize_value[-2] in "kb" and re.search(err_str, err):
                    raise error.TestNAError("BZ 1002813 not yet applied")
                else:
                    raise error.TestFail("Run failed with right "
                                         "virsh blockresize command")

        # Although kb should not be used, libvirt/virsh will accept it and
        # consider it as a 1000 bytes, which caused issues for qed & qcow2
        # since they expect a value evenly divisible by 512 (hence bz 1002813).
        if "kb" in resize_value:
            value = int(resize_value[:-2])
            if image_format in ["qed", "qcow2"]:
                # qcow2 and qed want a VIR_ROUND_UP value based on 512 byte
                # sectors - hence this less than visually appealing formula
                expected_size = (((value * 1000) + 512 - 1) / 512) * 512
            else:
                # Raw images...
                # Ugh - there's some rather ugly looking math when kb
                # (or mb, gb, tb, etc.) are used as the scale for the
                # value to create an image. The blockresize for the
                # running VM uses a qemu json call which differs from
                # qemu-img would do - resulting in (to say the least)
                # awkward sizes. We'll just have to make sure we don't
                # deviates more than a sector.
                expected_size = value * 1000
        elif "kib" in resize_value:
            value = int(resize_value[:-3])
            expected_size = value * 1024
        elif resize_value[-1] in "b":
            expected_size = int(resize_value[:-1])
        elif resize_value[-1] in "k":
            value = int(resize_value[:-1])
            expected_size = value * 1024
        elif resize_value[-1] == "m":
            value = int(resize_value[:-1])
            expected_size = value * 1024 * 1024
        elif resize_value[-1] == "g":
            value = int(resize_value[:-1])
            expected_size = value * 1024 * 1024 * 1024
        else:
            raise error.TestError("Unknown scale value")

        image_info = utils_misc.get_image_info(image_path)
        actual_size = int(image_info['vsize'])

        logging.info("The expected block size is %s bytes, "
                     "the actual block size is %s bytes",
                     expected_size, actual_size)

        # See comment above regarding Raw images
        if image_format == "raw" and resize_value[-2] in "kb":
            if abs(int(actual_size) - int(expected_size)) > 512:
                raise error.TestFail("New raw blocksize set by blockresize do "
                                     "not match the expected value")
        else:
            if int(actual_size) != int(expected_size):
                raise error.TestFail("New blocksize set by blockresize is "
                                     "different from actual size from "
                                     "'qemu-img info'")
    finally:
        virsh.detach_disk(vm_name, target="vdd")

        if os.path.exists(image_path):
            os.remove(image_path)