xref: /openbmc/u-boot/tools/binman/fdt_test.py (revision da4cfa6b) 
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
7import os
8import sys
9import tempfile
10import unittest
11
12import fdt
13from fdt import FdtScan
14import fdt_util
15import tools
16
17class 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)
87