2df6d9b914
Adds support for the block device size to be asserted for the purpose of writing out new images, which may be critical for operators with hardware which requires logical blocks which are 4096 bytes long. Change-Id: I5c16a042eacfbb94a905b93a0eb9fbc73de0a890
85 lines
3.5 KiB
Python
85 lines
3.5 KiB
Python
# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import fixtures
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import logging
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import os
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from unittest import mock
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import diskimage_builder.block_device.tests.test_config as tc
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from diskimage_builder.block_device.blockdevice import BlockDeviceState
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from diskimage_builder.block_device.config import config_tree_to_graph
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from diskimage_builder.block_device.config import create_graph
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from diskimage_builder.block_device.level0.localloop import image_create
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from diskimage_builder.block_device.level1.partition import PartitionNode
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logger = logging.getLogger(__name__)
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class TestGPT(tc.TestGraphGeneration):
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@mock.patch('diskimage_builder.block_device.level1.partitioning.exec_sudo')
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def test_gpt_efi(self, mock_exec_sudo):
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# Test the command-sequence for a GPT/EFI partition setup
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tree = self.load_config_file('gpt_efi.yaml')
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config = config_tree_to_graph(tree)
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state = BlockDeviceState()
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graph, call_order = create_graph(config, self.fake_default_config,
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state)
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# Create a fake temp backing file (we check the size of it,
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# etc).
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# TODO(ianw): exec_sudo is generically mocked out, thus the
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# actual creation is mocked out ... but we could do this
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# without root and use parted to create the partitions on this
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# for slightly better testing. An exercise for another day...
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self.tmp_dir = fixtures.TempDir()
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self.useFixture(self.tmp_dir)
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self.image_path = os.path.join(self.tmp_dir.path, "image.raw")
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# should be sparse...
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image_create(self.image_path, 1024 * 1024 * 1024)
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logger.debug("Temp image in %s", self.image_path)
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# Fake state for the loopback device
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state['blockdev'] = {}
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state['blockdev']['image0'] = {}
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state['blockdev']['image0']['image'] = self.image_path
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state['blockdev']['image0']['device'] = "/dev/loopX"
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for node in call_order:
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if isinstance(node, PartitionNode):
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node.create()
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# check the parted call looks right
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parted_cmd = ['sgdisk', '/dev/loopX',
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'-n', '1:0:+8M', '-t', '1:EF00', '-c', '1:ESP',
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'-n', '2:0:+8M', '-t', '2:EF02', '-c', '2:BSP',
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'-n', '3:0:+1006M', '-t', '3:8300', '-c', '3:Root Part']
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cmd_sequence = [
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mock.call(parted_cmd),
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mock.call(['sync']),
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mock.call(['kpartx', '-uvs', '/dev/loopX'])
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]
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self.assertEqual(mock_exec_sudo.call_count, len(cmd_sequence))
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mock_exec_sudo.assert_has_calls(cmd_sequence)
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# Check two new partitions appear in state correctly
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self.assertDictEqual(state['blockdev']['ESP'],
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{'device': '/dev/mapper/loopXp1'})
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self.assertDictEqual(state['blockdev']['BSP'],
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{'device': '/dev/mapper/loopXp2'})
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self.assertDictEqual(state['blockdev']['Root Part'],
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{'device': '/dev/mapper/loopXp3'})
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