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https://github.com/brain-hackers/u-boot-brain
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bf776679a7
At present patman sets the python path on startup so that it can access the libraries it needs. If we convert to use absolute imports this is not necessary. Move patman to use absolute imports. This requires changes in tools which use the patman libraries (which is most of them). Signed-off-by: Simon Glass <sjg@chromium.org>
617 lines
23 KiB
Python
Executable File
617 lines
23 KiB
Python
Executable File
#!/usr/bin/env python3
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# SPDX-License-Identifier: GPL-2.0+
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# Copyright (c) 2018 Google, Inc
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# Written by Simon Glass <sjg@chromium.org>
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#
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from optparse import OptionParser
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import glob
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import os
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import shutil
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import sys
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import tempfile
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import unittest
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# Bring in the patman libraries
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our_path = os.path.dirname(os.path.realpath(__file__))
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for dirname in ['../patman', '..']:
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sys.path.insert(0, os.path.join(our_path, dirname))
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from dtoc import fdt
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from dtoc import fdt_util
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from dtoc.fdt_util import fdt32_to_cpu
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from fdt import TYPE_BYTE, TYPE_INT, TYPE_STRING, TYPE_BOOL, BytesToValue
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import libfdt
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from patman import command
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from patman import test_util
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from patman import tools
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def _GetPropertyValue(dtb, node, prop_name):
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"""Low-level function to get the property value based on its offset
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This looks directly in the device tree at the property's offset to find
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its value. It is useful as a check that the property is in the correct
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place.
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Args:
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node: Node to look in
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prop_name: Property name to find
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Returns:
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Tuple:
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Prop object found
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Value of property as a string (found using property offset)
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"""
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prop = node.props[prop_name]
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# Add 12, which is sizeof(struct fdt_property), to get to start of data
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offset = prop.GetOffset() + 12
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data = dtb.GetContents()[offset:offset + len(prop.value)]
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return prop, [tools.ToChar(x) for x in data]
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class TestFdt(unittest.TestCase):
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"""Tests for the Fdt module
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This includes unit tests for some functions and functional tests for the fdt
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module.
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"""
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@classmethod
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def setUpClass(cls):
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tools.PrepareOutputDir(None)
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@classmethod
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def tearDownClass(cls):
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tools.FinaliseOutputDir()
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def setUp(self):
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self.dtb = fdt.FdtScan('tools/dtoc/dtoc_test_simple.dts')
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def testFdt(self):
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"""Test that we can open an Fdt"""
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self.dtb.Scan()
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root = self.dtb.GetRoot()
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self.assertTrue(isinstance(root, fdt.Node))
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def testGetNode(self):
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"""Test the GetNode() method"""
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node = self.dtb.GetNode('/spl-test')
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self.assertTrue(isinstance(node, fdt.Node))
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node = self.dtb.GetNode('/i2c@0/pmic@9')
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self.assertTrue(isinstance(node, fdt.Node))
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self.assertEqual('pmic@9', node.name)
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self.assertIsNone(self.dtb.GetNode('/i2c@0/pmic@9/missing'))
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node = self.dtb.GetNode('/')
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self.assertTrue(isinstance(node, fdt.Node))
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self.assertEqual(0, node.Offset())
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def testFlush(self):
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"""Check that we can flush the device tree out to its file"""
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fname = self.dtb._fname
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with open(fname, 'rb') as fd:
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data = fd.read()
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os.remove(fname)
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with self.assertRaises(IOError):
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open(fname, 'rb')
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self.dtb.Flush()
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with open(fname, 'rb') as fd:
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data = fd.read()
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def testPack(self):
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"""Test that packing a device tree works"""
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self.dtb.Pack()
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def testGetFdt(self):
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"""Tetst that we can access the raw device-tree data"""
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self.assertTrue(isinstance(self.dtb.GetContents(), bytearray))
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def testGetProps(self):
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"""Tests obtaining a list of properties"""
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node = self.dtb.GetNode('/spl-test')
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props = self.dtb.GetProps(node)
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self.assertEqual(['boolval', 'bytearray', 'byteval', 'compatible',
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'intarray', 'intval', 'longbytearray', 'notstring',
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'stringarray', 'stringval', 'u-boot,dm-pre-reloc'],
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sorted(props.keys()))
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def testCheckError(self):
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"""Tests the ChecKError() function"""
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with self.assertRaises(ValueError) as e:
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fdt.CheckErr(-libfdt.NOTFOUND, 'hello')
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self.assertIn('FDT_ERR_NOTFOUND: hello', str(e.exception))
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def testGetFdt(self):
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node = self.dtb.GetNode('/spl-test')
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self.assertEqual(self.dtb, node.GetFdt())
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def testBytesToValue(self):
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self.assertEqual(BytesToValue(b'this\0is\0'),
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(TYPE_STRING, ['this', 'is']))
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class TestNode(unittest.TestCase):
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"""Test operation of the Node class"""
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@classmethod
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def setUpClass(cls):
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tools.PrepareOutputDir(None)
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@classmethod
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def tearDownClass(cls):
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tools.FinaliseOutputDir()
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def setUp(self):
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self.dtb = fdt.FdtScan('tools/dtoc/dtoc_test_simple.dts')
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self.node = self.dtb.GetNode('/spl-test')
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def testOffset(self):
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"""Tests that we can obtain the offset of a node"""
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self.assertTrue(self.node.Offset() > 0)
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def testDelete(self):
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"""Tests that we can delete a property"""
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node2 = self.dtb.GetNode('/spl-test2')
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offset1 = node2.Offset()
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self.node.DeleteProp('intval')
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offset2 = node2.Offset()
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self.assertTrue(offset2 < offset1)
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self.node.DeleteProp('intarray')
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offset3 = node2.Offset()
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self.assertTrue(offset3 < offset2)
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with self.assertRaises(libfdt.FdtException):
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self.node.DeleteProp('missing')
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def testDeleteGetOffset(self):
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"""Test that property offset update when properties are deleted"""
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self.node.DeleteProp('intval')
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prop, value = _GetPropertyValue(self.dtb, self.node, 'longbytearray')
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self.assertEqual(prop.value, value)
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def testFindNode(self):
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"""Tests that we can find a node using the FindNode() functoin"""
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node = self.dtb.GetRoot().FindNode('i2c@0')
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self.assertEqual('i2c@0', node.name)
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subnode = node.FindNode('pmic@9')
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self.assertEqual('pmic@9', subnode.name)
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self.assertEqual(None, node.FindNode('missing'))
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def testRefreshMissingNode(self):
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"""Test refreshing offsets when an extra node is present in dtb"""
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# Delete it from our tables, not the device tree
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del self.dtb._root.subnodes[-1]
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with self.assertRaises(ValueError) as e:
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self.dtb.Refresh()
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self.assertIn('Internal error, offset', str(e.exception))
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def testRefreshExtraNode(self):
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"""Test refreshing offsets when an expected node is missing"""
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# Delete it from the device tre, not our tables
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self.dtb.GetFdtObj().del_node(self.node.Offset())
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with self.assertRaises(ValueError) as e:
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self.dtb.Refresh()
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self.assertIn('Internal error, node name mismatch '
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'spl-test != spl-test2', str(e.exception))
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def testRefreshMissingProp(self):
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"""Test refreshing offsets when an extra property is present in dtb"""
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# Delete it from our tables, not the device tree
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del self.node.props['notstring']
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with self.assertRaises(ValueError) as e:
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self.dtb.Refresh()
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self.assertIn("Internal error, property 'notstring' missing, offset ",
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str(e.exception))
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def testLookupPhandle(self):
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"""Test looking up a single phandle"""
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dtb = fdt.FdtScan('tools/dtoc/dtoc_test_phandle.dts')
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node = dtb.GetNode('/phandle-source2')
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prop = node.props['clocks']
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target = dtb.GetNode('/phandle-target')
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self.assertEqual(target, dtb.LookupPhandle(fdt32_to_cpu(prop.value)))
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class TestProp(unittest.TestCase):
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"""Test operation of the Prop class"""
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@classmethod
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def setUpClass(cls):
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tools.PrepareOutputDir(None)
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@classmethod
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def tearDownClass(cls):
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tools.FinaliseOutputDir()
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def setUp(self):
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self.dtb = fdt.FdtScan('tools/dtoc/dtoc_test_simple.dts')
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self.node = self.dtb.GetNode('/spl-test')
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self.fdt = self.dtb.GetFdtObj()
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def testMissingNode(self):
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self.assertEqual(None, self.dtb.GetNode('missing'))
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def testPhandle(self):
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dtb = fdt.FdtScan('tools/dtoc/dtoc_test_phandle.dts')
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node = dtb.GetNode('/phandle-source2')
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prop = node.props['clocks']
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self.assertTrue(fdt32_to_cpu(prop.value) > 0)
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def _ConvertProp(self, prop_name):
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"""Helper function to look up a property in self.node and return it
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Args:
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Property name to find
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Return fdt.Prop object for this property
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"""
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p = self.fdt.getprop(self.node.Offset(), prop_name)
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return fdt.Prop(self.node, -1, prop_name, p)
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def testMakeProp(self):
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"""Test we can convert all the the types that are supported"""
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prop = self._ConvertProp('boolval')
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self.assertEqual(fdt.TYPE_BOOL, prop.type)
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self.assertEqual(True, prop.value)
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prop = self._ConvertProp('intval')
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self.assertEqual(fdt.TYPE_INT, prop.type)
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self.assertEqual(1, fdt32_to_cpu(prop.value))
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prop = self._ConvertProp('intarray')
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self.assertEqual(fdt.TYPE_INT, prop.type)
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val = [fdt32_to_cpu(val) for val in prop.value]
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self.assertEqual([2, 3, 4], val)
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prop = self._ConvertProp('byteval')
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self.assertEqual(fdt.TYPE_BYTE, prop.type)
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self.assertEqual(5, ord(prop.value))
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prop = self._ConvertProp('longbytearray')
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self.assertEqual(fdt.TYPE_BYTE, prop.type)
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val = [ord(val) for val in prop.value]
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self.assertEqual([9, 10, 11, 12, 13, 14, 15, 16, 17], val)
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prop = self._ConvertProp('stringval')
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self.assertEqual(fdt.TYPE_STRING, prop.type)
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self.assertEqual('message', prop.value)
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prop = self._ConvertProp('stringarray')
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self.assertEqual(fdt.TYPE_STRING, prop.type)
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self.assertEqual(['multi-word', 'message'], prop.value)
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prop = self._ConvertProp('notstring')
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self.assertEqual(fdt.TYPE_BYTE, prop.type)
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val = [ord(val) for val in prop.value]
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self.assertEqual([0x20, 0x21, 0x22, 0x10, 0], val)
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def testGetEmpty(self):
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"""Tests the GetEmpty() function for the various supported types"""
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self.assertEqual(True, fdt.Prop.GetEmpty(fdt.TYPE_BOOL))
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self.assertEqual(chr(0), fdt.Prop.GetEmpty(fdt.TYPE_BYTE))
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self.assertEqual(tools.GetBytes(0, 4), fdt.Prop.GetEmpty(fdt.TYPE_INT))
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self.assertEqual('', fdt.Prop.GetEmpty(fdt.TYPE_STRING))
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def testGetOffset(self):
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"""Test we can get the offset of a property"""
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prop, value = _GetPropertyValue(self.dtb, self.node, 'longbytearray')
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self.assertEqual(prop.value, value)
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def testWiden(self):
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"""Test widening of values"""
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node2 = self.dtb.GetNode('/spl-test2')
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prop = self.node.props['intval']
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# No action
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prop2 = node2.props['intval']
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prop.Widen(prop2)
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self.assertEqual(fdt.TYPE_INT, prop.type)
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self.assertEqual(1, fdt32_to_cpu(prop.value))
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# Convert singla value to array
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prop2 = self.node.props['intarray']
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prop.Widen(prop2)
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self.assertEqual(fdt.TYPE_INT, prop.type)
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self.assertTrue(isinstance(prop.value, list))
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# A 4-byte array looks like a single integer. When widened by a longer
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# byte array, it should turn into an array.
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prop = self.node.props['longbytearray']
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prop2 = node2.props['longbytearray']
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self.assertFalse(isinstance(prop2.value, list))
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self.assertEqual(4, len(prop2.value))
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prop2.Widen(prop)
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self.assertTrue(isinstance(prop2.value, list))
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self.assertEqual(9, len(prop2.value))
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# Similarly for a string array
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prop = self.node.props['stringval']
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prop2 = node2.props['stringarray']
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self.assertFalse(isinstance(prop.value, list))
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self.assertEqual(7, len(prop.value))
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prop.Widen(prop2)
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self.assertTrue(isinstance(prop.value, list))
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self.assertEqual(3, len(prop.value))
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# Enlarging an existing array
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prop = self.node.props['stringarray']
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prop2 = node2.props['stringarray']
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self.assertTrue(isinstance(prop.value, list))
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self.assertEqual(2, len(prop.value))
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prop.Widen(prop2)
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self.assertTrue(isinstance(prop.value, list))
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self.assertEqual(3, len(prop.value))
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def testAdd(self):
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"""Test adding properties"""
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self.fdt.pack()
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# This function should automatically expand the device tree
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self.node.AddZeroProp('one')
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self.node.AddZeroProp('two')
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self.node.AddZeroProp('three')
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self.dtb.Sync(auto_resize=True)
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# Updating existing properties should be OK, since the device-tree size
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# does not change
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self.fdt.pack()
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self.node.SetInt('one', 1)
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self.node.SetInt('two', 2)
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self.node.SetInt('three', 3)
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self.dtb.Sync(auto_resize=False)
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# This should fail since it would need to increase the device-tree size
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self.node.AddZeroProp('four')
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with self.assertRaises(libfdt.FdtException) as e:
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self.dtb.Sync(auto_resize=False)
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self.assertIn('FDT_ERR_NOSPACE', str(e.exception))
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self.dtb.Sync(auto_resize=True)
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def testAddNode(self):
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self.fdt.pack()
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self.node.AddSubnode('subnode')
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with self.assertRaises(libfdt.FdtException) as e:
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self.dtb.Sync(auto_resize=False)
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self.assertIn('FDT_ERR_NOSPACE', str(e.exception))
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self.dtb.Sync(auto_resize=True)
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offset = self.fdt.path_offset('/spl-test/subnode')
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self.assertTrue(offset > 0)
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def testAddMore(self):
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"""Test various other methods for adding and setting properties"""
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self.node.AddZeroProp('one')
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self.dtb.Sync(auto_resize=True)
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data = self.fdt.getprop(self.node.Offset(), 'one')
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self.assertEqual(0, fdt32_to_cpu(data))
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self.node.SetInt('one', 1)
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self.dtb.Sync(auto_resize=False)
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data = self.fdt.getprop(self.node.Offset(), 'one')
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self.assertEqual(1, fdt32_to_cpu(data))
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val = '123' + chr(0) + '456'
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self.node.AddString('string', val)
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self.dtb.Sync(auto_resize=True)
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data = self.fdt.getprop(self.node.Offset(), 'string')
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self.assertEqual(tools.ToBytes(val) + b'\0', data)
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self.fdt.pack()
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self.node.SetString('string', val + 'x')
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with self.assertRaises(libfdt.FdtException) as e:
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self.dtb.Sync(auto_resize=False)
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self.assertIn('FDT_ERR_NOSPACE', str(e.exception))
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self.node.SetString('string', val[:-1])
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prop = self.node.props['string']
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prop.SetData(tools.ToBytes(val))
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self.dtb.Sync(auto_resize=False)
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data = self.fdt.getprop(self.node.Offset(), 'string')
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self.assertEqual(tools.ToBytes(val), data)
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self.node.AddEmptyProp('empty', 5)
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self.dtb.Sync(auto_resize=True)
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prop = self.node.props['empty']
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prop.SetData(tools.ToBytes(val))
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self.dtb.Sync(auto_resize=False)
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data = self.fdt.getprop(self.node.Offset(), 'empty')
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self.assertEqual(tools.ToBytes(val), data)
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self.node.SetData('empty', b'123')
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self.assertEqual(b'123', prop.bytes)
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def testFromData(self):
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dtb2 = fdt.Fdt.FromData(self.dtb.GetContents())
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self.assertEqual(dtb2.GetContents(), self.dtb.GetContents())
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self.node.AddEmptyProp('empty', 5)
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self.dtb.Sync(auto_resize=True)
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self.assertTrue(dtb2.GetContents() != self.dtb.GetContents())
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def testMissingSetInt(self):
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"""Test handling of a missing property with SetInt"""
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with self.assertRaises(ValueError) as e:
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self.node.SetInt('one', 1)
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self.assertIn("node '/spl-test': Missing property 'one'",
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str(e.exception))
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def testMissingSetData(self):
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"""Test handling of a missing property with SetData"""
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with self.assertRaises(ValueError) as e:
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self.node.SetData('one', b'data')
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self.assertIn("node '/spl-test': Missing property 'one'",
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str(e.exception))
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def testMissingSetString(self):
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"""Test handling of a missing property with SetString"""
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with self.assertRaises(ValueError) as e:
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self.node.SetString('one', 1)
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self.assertIn("node '/spl-test': Missing property 'one'",
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str(e.exception))
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def testGetFilename(self):
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"""Test the dtb filename can be provided"""
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self.assertEqual(tools.GetOutputFilename('source.dtb'),
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self.dtb.GetFilename())
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class TestFdtUtil(unittest.TestCase):
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"""Tests for the fdt_util module
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This module will likely be mostly replaced at some point, once upstream
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libfdt has better Python support. For now, this provides tests for current
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functionality.
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"""
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@classmethod
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def setUpClass(cls):
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tools.PrepareOutputDir(None)
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@classmethod
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def tearDownClass(cls):
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tools.FinaliseOutputDir()
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def setUp(self):
|
|
self.dtb = fdt.FdtScan('tools/dtoc/dtoc_test_simple.dts')
|
|
self.node = self.dtb.GetNode('/spl-test')
|
|
|
|
def testGetInt(self):
|
|
self.assertEqual(1, fdt_util.GetInt(self.node, 'intval'))
|
|
self.assertEqual(3, fdt_util.GetInt(self.node, 'missing', 3))
|
|
|
|
with self.assertRaises(ValueError) as e:
|
|
self.assertEqual(3, fdt_util.GetInt(self.node, 'intarray'))
|
|
self.assertIn("property 'intarray' has list value: expecting a single "
|
|
'integer', str(e.exception))
|
|
|
|
def testGetString(self):
|
|
self.assertEqual('message', fdt_util.GetString(self.node, 'stringval'))
|
|
self.assertEqual('test', fdt_util.GetString(self.node, 'missing',
|
|
'test'))
|
|
|
|
with self.assertRaises(ValueError) as e:
|
|
self.assertEqual(3, fdt_util.GetString(self.node, 'stringarray'))
|
|
self.assertIn("property 'stringarray' has list value: expecting a "
|
|
'single string', str(e.exception))
|
|
|
|
def testGetBool(self):
|
|
self.assertEqual(True, fdt_util.GetBool(self.node, 'boolval'))
|
|
self.assertEqual(False, fdt_util.GetBool(self.node, 'missing'))
|
|
self.assertEqual(True, fdt_util.GetBool(self.node, 'missing', True))
|
|
self.assertEqual(False, fdt_util.GetBool(self.node, 'missing', False))
|
|
|
|
def testGetByte(self):
|
|
self.assertEqual(5, fdt_util.GetByte(self.node, 'byteval'))
|
|
self.assertEqual(3, fdt_util.GetByte(self.node, 'missing', 3))
|
|
|
|
with self.assertRaises(ValueError) as e:
|
|
fdt_util.GetByte(self.node, 'longbytearray')
|
|
self.assertIn("property 'longbytearray' has list value: expecting a "
|
|
'single byte', str(e.exception))
|
|
|
|
with self.assertRaises(ValueError) as e:
|
|
fdt_util.GetByte(self.node, 'intval')
|
|
self.assertIn("property 'intval' has length 4, expecting 1",
|
|
str(e.exception))
|
|
|
|
def testGetPhandleList(self):
|
|
dtb = fdt.FdtScan('tools/dtoc/dtoc_test_phandle.dts')
|
|
node = dtb.GetNode('/phandle-source2')
|
|
self.assertEqual([1], fdt_util.GetPhandleList(node, 'clocks'))
|
|
node = dtb.GetNode('/phandle-source')
|
|
self.assertEqual([1, 2, 11, 3, 12, 13, 1],
|
|
fdt_util.GetPhandleList(node, 'clocks'))
|
|
self.assertEqual(None, fdt_util.GetPhandleList(node, 'missing'))
|
|
|
|
def testGetDataType(self):
|
|
self.assertEqual(1, fdt_util.GetDatatype(self.node, 'intval', int))
|
|
self.assertEqual('message', fdt_util.GetDatatype(self.node, 'stringval',
|
|
str))
|
|
with self.assertRaises(ValueError) as e:
|
|
self.assertEqual(3, fdt_util.GetDatatype(self.node, 'boolval',
|
|
bool))
|
|
def testFdtCellsToCpu(self):
|
|
val = self.node.props['intarray'].value
|
|
self.assertEqual(0, fdt_util.fdt_cells_to_cpu(val, 0))
|
|
self.assertEqual(2, fdt_util.fdt_cells_to_cpu(val, 1))
|
|
|
|
dtb2 = fdt.FdtScan('tools/dtoc/dtoc_test_addr64.dts')
|
|
node1 = dtb2.GetNode('/test1')
|
|
val = node1.props['reg'].value
|
|
self.assertEqual(0x1234, fdt_util.fdt_cells_to_cpu(val, 2))
|
|
|
|
node2 = dtb2.GetNode('/test2')
|
|
val = node2.props['reg'].value
|
|
self.assertEqual(0x1234567890123456, fdt_util.fdt_cells_to_cpu(val, 2))
|
|
self.assertEqual(0x9876543210987654, fdt_util.fdt_cells_to_cpu(val[2:],
|
|
2))
|
|
self.assertEqual(0x12345678, fdt_util.fdt_cells_to_cpu(val, 1))
|
|
|
|
def testEnsureCompiled(self):
|
|
"""Test a degenerate case of this function (file already compiled)"""
|
|
dtb = fdt_util.EnsureCompiled('tools/dtoc/dtoc_test_simple.dts')
|
|
self.assertEqual(dtb, fdt_util.EnsureCompiled(dtb))
|
|
|
|
def testEnsureCompiledTmpdir(self):
|
|
"""Test providing a temporary directory"""
|
|
try:
|
|
old_outdir = tools.outdir
|
|
tools.outdir= None
|
|
tmpdir = tempfile.mkdtemp(prefix='test_fdt.')
|
|
dtb = fdt_util.EnsureCompiled('tools/dtoc/dtoc_test_simple.dts',
|
|
tmpdir)
|
|
self.assertEqual(tmpdir, os.path.dirname(dtb))
|
|
shutil.rmtree(tmpdir)
|
|
finally:
|
|
tools.outdir= old_outdir
|
|
|
|
|
|
def RunTestCoverage():
|
|
"""Run the tests and check that we get 100% coverage"""
|
|
test_util.RunTestCoverage('tools/dtoc/test_fdt.py', None,
|
|
['tools/patman/*.py', '*test_fdt.py'], options.build_dir)
|
|
|
|
|
|
def RunTests(args):
|
|
"""Run all the test we have for the fdt model
|
|
|
|
Args:
|
|
args: List of positional args provided to fdt. This can hold a test
|
|
name to execute (as in 'fdt -t testFdt', for example)
|
|
"""
|
|
result = unittest.TestResult()
|
|
sys.argv = [sys.argv[0]]
|
|
test_name = args and args[0] or None
|
|
for module in (TestFdt, TestNode, TestProp, TestFdtUtil):
|
|
if test_name:
|
|
try:
|
|
suite = unittest.TestLoader().loadTestsFromName(test_name, module)
|
|
except AttributeError:
|
|
continue
|
|
else:
|
|
suite = unittest.TestLoader().loadTestsFromTestCase(module)
|
|
suite.run(result)
|
|
|
|
print(result)
|
|
for _, err in result.errors:
|
|
print(err)
|
|
for _, err in result.failures:
|
|
print(err)
|
|
|
|
if __name__ != '__main__':
|
|
sys.exit(1)
|
|
|
|
parser = OptionParser()
|
|
parser.add_option('-B', '--build-dir', type='string', default='b',
|
|
help='Directory containing the build output')
|
|
parser.add_option('-P', '--processes', type=int,
|
|
help='set number of processes to use for running tests')
|
|
parser.add_option('-t', '--test', action='store_true', dest='test',
|
|
default=False, help='run tests')
|
|
parser.add_option('-T', '--test-coverage', action='store_true',
|
|
default=False, help='run tests and check for 100% coverage')
|
|
(options, args) = parser.parse_args()
|
|
|
|
# Run our meagre tests
|
|
if options.test:
|
|
RunTests(args)
|
|
elif options.test_coverage:
|
|
RunTestCoverage()
|