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tools/binman/fdt_test.py
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#
# Copyright (c) 2016 Google, Inc
# Written by Simon Glass <sjg@chromium.org>
#
# SPDX-License-Identifier: GPL-2.0+
#
# Test for the fdt modules
import os
import sys
import tempfile
import unittest
import fdt
from fdt import FdtScan
import fdt_util
import tools
class TestFdt(unittest.TestCase):
@classmethod
def setUpClass(self):
self._binman_dir = os.path.dirname(os.path.realpath(sys.argv[0]))
self._indir = tempfile.mkdtemp(prefix='binmant.')
tools.PrepareOutputDir(self._indir, True)
def TestFile(self, fname):
return os.path.join(self._binman_dir, 'test', fname)
def GetCompiled(self, fname):
return fdt_util.EnsureCompiled(self.TestFile(fname))
def _DeleteProp(self, dt):
node = dt.GetNode('/microcode/update@0')
node.DeleteProp('data')
def testFdtNormal(self):
fname = self.GetCompiled('34_x86_ucode.dts')
dt = FdtScan(fname)
self._DeleteProp(dt)
def testFdtNormalProp(self):
fname = self.GetCompiled('45_prop_test.dts')
dt = FdtScan(fname)
node = dt.GetNode('/binman/intel-me')
self.assertEquals('intel-me', node.name)
val = fdt_util.GetString(node, 'filename')
self.assertEquals(str, type(val))
self.assertEquals('me.bin', val)
prop = node.props['intval']
self.assertEquals(fdt.TYPE_INT, prop.type)
self.assertEquals(3, fdt_util.GetInt(node, 'intval'))
prop = node.props['intarray']
self.assertEquals(fdt.TYPE_INT, prop.type)
self.assertEquals(list, type(prop.value))
self.assertEquals(2, len(prop.value))
self.assertEquals([5, 6],
[fdt_util.fdt32_to_cpu(val) for val in prop.value])
prop = node.props['byteval']
self.assertEquals(fdt.TYPE_BYTE, prop.type)
self.assertEquals(chr(8), prop.value)
prop = node.props['bytearray']
self.assertEquals(fdt.TYPE_BYTE, prop.type)
self.assertEquals(list, type(prop.value))
self.assertEquals(str, type(prop.value[0]))
self.assertEquals(3, len(prop.value))
self.assertEquals([chr(1), '#', '4'], prop.value)
prop = node.props['longbytearray']
self.assertEquals(fdt.TYPE_INT, prop.type)
self.assertEquals(0x090a0b0c, fdt_util.GetInt(node, 'longbytearray'))
prop = node.props['stringval']
self.assertEquals(fdt.TYPE_STRING, prop.type)
self.assertEquals('message2', fdt_util.GetString(node, 'stringval'))
prop = node.props['stringarray']
self.assertEquals(fdt.TYPE_STRING, prop.type)
self.assertEquals(list, type(prop.value))
self.assertEquals(3, len(prop.value))
self.assertEquals(['another', 'multi-word', 'message'], prop.value)
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