diff options
Diffstat (limited to 'tests')
| -rw-r--r-- | tests/pylibfdt_tests.py | 121 |
1 files changed, 115 insertions, 6 deletions
diff --git a/tests/pylibfdt_tests.py b/tests/pylibfdt_tests.py index 9f3e55a..e61fda9 100644 --- a/tests/pylibfdt_tests.py +++ b/tests/pylibfdt_tests.py @@ -56,17 +56,32 @@ import unittest sys.path.insert(0, '../pylibfdt') import libfdt -from libfdt import Fdt, FdtException, QUIET_NOTFOUND, QUIET_ALL - -small_size = 160 -full_size = 1024 +from libfdt import Fdt, FdtSw, FdtException, QUIET_NOTFOUND, QUIET_ALL + +TEST_ADDR_1H = 0xdeadbeef +TEST_ADDR_1L = 0x00000000 +TEST_ADDR_1 = (TEST_ADDR_1H << 32) | TEST_ADDR_1L +TEST_ADDR_1 = 0x8000000000000000 +TEST_SIZE_1H = 0x00000000 +TEST_SIZE_1L = 0x00100000 +TEST_SIZE_1 = (TEST_SIZE_1H << 32) | TEST_SIZE_1L +TEST_ADDR_2H = 0 +TEST_ADDR_2L = 123456789 +TEST_ADDR_2 = (TEST_ADDR_2H << 32) | TEST_ADDR_2L +TEST_SIZE_2H = 0 +TEST_SIZE_2L = 010000 +TEST_SIZE_2 = (TEST_SIZE_2H << 32) | TEST_SIZE_2L TEST_VALUE_1 = 0xdeadbeef +TEST_VALUE_2 = 123456789 TEST_VALUE64_1H = 0xdeadbeef TEST_VALUE64_1L = 0x01abcdef TEST_VALUE64_1 = (TEST_VALUE64_1H << 32) | TEST_VALUE64_1L +PHANDLE_1 = 0x2000 +PHANDLE_2 = 0x2001 + TEST_STRING_1 = 'hello world' TEST_STRING_2 = 'hi world' TEST_STRING_3 = u'unicode ' + unichr(467) @@ -94,8 +109,8 @@ def _ReadFdt(fname): """ return libfdt.Fdt(open(fname).read()) -class PyLibfdtTests(unittest.TestCase): - """Test class for pylibfdt +class PyLibfdtBasicTests(unittest.TestCase): + """Test class for basic pylibfdt access functions Properties: fdt: Device tree file used for testing @@ -481,5 +496,99 @@ class PyLibfdtTests(unittest.TestCase): self.assertIn('embedded nul', str(e.exception)) +class PyLibfdtSwTests(unittest.TestCase): + """Test class for pylibfdt sequential-write DT creation + """ + def assertOk(self, err_code): + self.assertEquals(0, err_code) + + def testCreate(self): + # First check the minimum size and also the FdtSw() constructor + with self.assertRaisesRegexp(FdtException, get_err(libfdt.NOSPACE)): + self.assertEquals(-libfdt.NOSPACE, FdtSw(3)) + + sw = FdtSw() + sw.add_reservemap_entry(TEST_ADDR_1, TEST_SIZE_1) + sw.add_reservemap_entry(TEST_ADDR_2, TEST_SIZE_2) + sw.finish_reservemap() + + sw.begin_node('') + sw.property_string('compatible', 'test_tree1') + sw.property_u32('prop-int', TEST_VALUE_1) + + sw.property_u32('prop-int', TEST_VALUE_1) + sw.property_u64('prop-int64', TEST_VALUE64_1) + sw.property_string('prop-str', TEST_STRING_1) + sw.property_u32('#address-cells', 1) + sw.property_u32('#size-cells', 0) + + sw.begin_node('subnode@1') + sw.property_string('compatible', 'subnode1') + sw.property_u32('reg', 1) + sw.property_cell('prop-int', TEST_VALUE_1) + sw.begin_node('subsubnode') + sw.property('compatible', 'subsubnode1\0subsubnode') + sw.property_cell('prop-int', TEST_VALUE_1) + sw.end_node() + sw.begin_node('ss1') + sw.end_node() + sw.end_node() + + for i in range(2, 11): + with sw.add_node('subnode@%d' % i): + sw.property_u32('reg', 2) + sw.property_cell('linux,phandle', PHANDLE_1) + sw.property_cell('prop-int', TEST_VALUE_2) + sw.property_u32('#address-cells', 1) + sw.property_u32('#size-cells', 0) + with sw.add_node('subsubnode@0'): + sw.property_u32('reg', 0) + sw.property_cell('phandle', PHANDLE_2) + sw.property('compatible', 'subsubnode2\0subsubnode') + sw.property_cell('prop-int', TEST_VALUE_2) + with sw.add_node('ss2'): + pass + sw.end_node() + + fdt = sw.as_fdt() + self.assertEqual(2, fdt.num_mem_rsv()) + self.assertEqual([TEST_ADDR_1, TEST_SIZE_1], fdt.get_mem_rsv(0)) + + # Make sure we can add a few more things + with sw.add_node('another'): + sw.property_u32('reg', 3) + + # Make sure we can read from the tree too + node = sw.path_offset('/subnode@1') + self.assertEqual('subnode1' + chr(0), sw.getprop(node, 'compatible')) + + # Make sure we did at least two resizes + self.assertTrue(len(fdt.as_bytearray()) > FdtSw.INC_SIZE * 2) + + +class PyLibfdtRoTests(unittest.TestCase): + """Test class for read-only pylibfdt access functions + + This just tests a few simple cases. Most of the tests are in + PyLibfdtBasicTests. + + Properties: + fdt: Device tree file used for testing + """ + + def setUp(self): + """Read in the device tree we use for testing""" + self.fdt = libfdt.FdtRo(open('test_tree1.dtb').read()) + + def testAccess(self): + """Basic sanity check for the FdtRo class""" + node = self.fdt.path_offset('/subnode@1') + self.assertEqual('subnode1' + chr(0), + self.fdt.getprop(node, 'compatible')) + node = self.fdt.first_subnode(node) + self.assertEqual('this is a placeholder string\0string2\0', + self.fdt.getprop(node, 'placeholder')) + + if __name__ == "__main__": unittest.main() |