tools/binman/fdt_test.py

   1 # SPDX-License-Identifier: GPL-2.0+
   2 # Copyright (c) 2016 Google, Inc
   3 # Written by Simon Glass <sjg@chromium.org>
   4 #
   5 # Test for the fdt modules
   6
   7 import os
   8 import sys
   9 import tempfile
  10 import unittest
  11
  12 import fdt
  13 from fdt import FdtScan
  14 import fdt_util
  15 import tools
  16
  17 class TestFdt(unittest.TestCase):
  18     @classmethod
  19     def setUpClass(self):
  20         self._binman_dir = os.path.dirname(os.path.realpath(sys.argv[0]))
  21         self._indir = tempfile.mkdtemp(prefix='binmant.')
  22         tools.PrepareOutputDir(self._indir, True)
  23
  24     @classmethod
  25     def tearDownClass(self):
  26         tools._FinaliseForTest()
  27
  28     def TestFile(self, fname):
  29         return os.path.join(self._binman_dir, 'test', fname)
  30
  31     def GetCompiled(self, fname):
  32         return fdt_util.EnsureCompiled(self.TestFile(fname))
  33
  34     def _DeleteProp(self, dt):
  35         node = dt.GetNode('/microcode/update@0')
  36         node.DeleteProp('data')
  37
  38     def testFdtNormal(self):
  39         fname = self.GetCompiled('034_x86_ucode.dts')
  40         dt = FdtScan(fname)
  41         self._DeleteProp(dt)
  42
  43     def testFdtNormalProp(self):
  44         fname = self.GetCompiled('045_prop_test.dts')
  45         dt = FdtScan(fname)
  46         node = dt.GetNode('/binman/intel-me')
  47         self.assertEquals('intel-me', node.name)
  48         val = fdt_util.GetString(node, 'filename')
  49         self.assertEquals(str, type(val))
  50         self.assertEquals('me.bin', val)
  51
  52         prop = node.props['intval']
  53         self.assertEquals(fdt.TYPE_INT, prop.type)
  54         self.assertEquals(3, fdt_util.GetInt(node, 'intval'))
  55
  56         prop = node.props['intarray']
  57         self.assertEquals(fdt.TYPE_INT, prop.type)
  58         self.assertEquals(list, type(prop.value))
  59         self.assertEquals(2, len(prop.value))
  60         self.assertEquals([5, 6],
  61                           [fdt_util.fdt32_to_cpu(val) for val in prop.value])
  62
  63         prop = node.props['byteval']
  64         self.assertEquals(fdt.TYPE_BYTE, prop.type)
  65         self.assertEquals(chr(8), prop.value)
  66
  67         prop = node.props['bytearray']
  68         self.assertEquals(fdt.TYPE_BYTE, prop.type)
  69         self.assertEquals(list, type(prop.value))
  70         self.assertEquals(str, type(prop.value[0]))
  71         self.assertEquals(3, len(prop.value))
  72         self.assertEquals([chr(1), '#', '4'], prop.value)
  73
  74         prop = node.props['longbytearray']
  75         self.assertEquals(fdt.TYPE_INT, prop.type)
  76         self.assertEquals(0x090a0b0c, fdt_util.GetInt(node, 'longbytearray'))
  77
  78         prop = node.props['stringval']
  79         self.assertEquals(fdt.TYPE_STRING, prop.type)
  80         self.assertEquals('message2', fdt_util.GetString(node, 'stringval'))
  81
  82         prop = node.props['stringarray']
  83         self.assertEquals(fdt.TYPE_STRING, prop.type)
  84         self.assertEquals(list, type(prop.value))
  85         self.assertEquals(3, len(prop.value))
  86         self.assertEquals(['another', 'multi-word', 'message'], prop.value)