Signed-off-by: Simon Glass <sjg@xxxxxxxxxxxx>
---
tests/pylibfdt_tests.py | 179 ++++++++++++++++++++++++++++++++++++++++++++++++
tests/run_tests.sh | 19 ++++-
2 files changed, 197 insertions(+), 1 deletion(-)
create mode 100644 tests/pylibfdt_tests.py
diff --git a/tests/pylibfdt_tests.py b/tests/pylibfdt_tests.py
new file mode 100644
index 0000000..c406ac9
--- /dev/null
+++ b/tests/pylibfdt_tests.py
@@ -0,0 +1,179 @@
+# pylibfdt - Tests for Flat Device Tree manipulation in Python
+# Copyright (C) 2016 Google, Inc.
+# Written by Simon Glass <sjg@xxxxxxxxxxxx>
+#
+# libfdt is dual licensed: you can use it either under the terms of
+# the GPL, or the BSD license, at your option.
+#
+# a) This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of the
+# License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public
+# License along with this library; if not, write to the Free
+# Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
+# MA 02110-1301 USA
+#
+# Alternatively,
+#
+# b) Redistribution and use in source and binary forms, with or
+# without modification, are permitted provided that the following
+# conditions are met:
+#
+# 1. Redistributions of source code must retain the above
+# copyright notice, this list of conditions and the following
+# disclaimer.
+# 2. Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following
+# disclaimer in the documentation and/or other materials
+# provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
+# CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
+# INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+# EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#
+
+import sys
+import unittest
+
+sys.path.append('../pylibfdt')
+import libfdt
+
+class PyLibfdtTests(unittest.TestCase):
+ """Test class for pylibfdt.
+
+ Properties:
+ fdt: Device tree file used for testing
+ """
+
+ def setUp(self):
+ """Read in the device tree we use for testing"""
+ self.fdt = self._ReadFdt('test_tree1.dtb')
+
+ def _ReadFdt(self, fname):
+ """Read a device tree file into a bytearray ready for use
+
+ Args:
+ fname: Filename to read from
+
+ Returns:
+ Fdt bytearray suitable for passing to libfdt functions
+ """
+ return bytearray(open(fname).read())
+
+ def GetPropList(self, node_path):
+ """Read a list of properties from a node
+
+ Args:
+ node_path: Full path to node, e.g. '/subnode@1/subsubnode'
+
+ Returns:
+ List of property names for that node, e.g. ['compatible', 'reg']
+ """
+ prop_list = []
+ node = libfdt.fdt_path_offset(self.fdt, node_path)
+ poffset = libfdt.fdt_first_property_offset(self.fdt, node)
+ while poffset >= 0:
+ pdata, plen = libfdt.fdt_get_property_by_offset(self.fdt, poffset)
+ prop_list.append(libfdt.String(self.fdt, pdata.nameoff))
+ poffset = libfdt.fdt_next_property_offset(self.fdt, poffset)
+ return prop_list
+
+ def testImport(self):
+ """Check that we can import the library correctly"""
+ self.assertEquals(type(libfdt), type(sys))
+
+ def testPathOffset(self):
+ """Check that we can find the offset of a node"""
+ self.assertEquals(libfdt.fdt_path_offset(self.fdt, '/'), 0)
+ self.assertEquals(libfdt.fdt_path_offset(self.fdt, '/subnode@1'), 124)
+
+ def testPropertyOffset(self):
+ """Walk through all the properties in the root node"""
+ self.assertEquals(libfdt.fdt_first_property_offset(self.fdt, 0), 8)
+ self.assertEquals(libfdt.fdt_next_property_offset(self.fdt, 8), 32)
+ self.assertEquals(libfdt.fdt_next_property_offset(self.fdt, 32), 48)
+ self.assertEquals(libfdt.fdt_next_property_offset(self.fdt, 48), 68)
+ self.assertEquals(libfdt.fdt_next_property_offset(self.fdt, 68), 92)
+ self.assertEquals(libfdt.fdt_next_property_offset(self.fdt, 92), 108)
+ self.assertEquals(libfdt.fdt_next_property_offset(self.fdt, 108), -1)
+
+ def testGetName(self):
+ """Check that we can get the name of a node"""
+ self.assertEquals(libfdt.fdt_get_name(self.fdt, 0), ['', 0])
+ node = libfdt.fdt_path_offset(self.fdt, '/subnode@1/subsubnode')
+ self.assertEquals(libfdt.fdt_get_name(self.fdt, node),
+ ['subsubnode', 10])
+
+ def testGetString(self):
+ """Test that we can get a string from the string table"""
+ node = libfdt.fdt_path_offset(self.fdt, '/subnode@2')
+ poffset = libfdt.fdt_first_property_offset(self.fdt, node)
+ pdata, plen = libfdt.fdt_get_property_by_offset(self.fdt, poffset)
+ self.assertEquals(libfdt.String(self.fdt, pdata.nameoff), 'reg')
+
+ def testGetPropertyByOffset(self):
+ """Check that we can read the name and contents of a property"""
+ root = libfdt.fdt_path_offset(self.fdt, '/')
+ poffset = libfdt.fdt_first_property_offset(self.fdt, root)
+ pdata, plen = libfdt.fdt_get_property_by_offset(self.fdt, poffset)
+ self.assertEquals(libfdt.fdt32_to_cpu(pdata.tag), 3)
+ self.assertEquals(libfdt.fdt32_to_cpu(pdata.len), 11)
+ self.assertEquals(libfdt.String(self.fdt, pdata.nameoff), 'compatible')
+ self.assertEquals(libfdt.Data(pdata), 'test_tree1\0')
+
+ def testStrError(self):
+ """Check that we can get an error string"""
+ self.assertEquals(libfdt.fdt_strerror(-1), 'FDT_ERR_NOTFOUND')
+
+ def testFirstNextSubnode(self):
+ """Check that we can walk through subnodes"""
+ node_list = []
+ node = libfdt.fdt_first_subnode(self.fdt, 0)
+ while node >= 0:
+ node_list.append(libfdt.fdt_get_name(self.fdt, node)[0])
+ node = libfdt.fdt_next_subnode(self.fdt, node)
+ self.assertEquals(node_list, ['subnode@1', 'subnode@2'])
+
+ def testDeleteProperty(self):
+ """Test that we can delete a property"""
+ node_name = '/subnode@1'
+ self.assertEquals(self.GetPropList(node_name),
+ ['compatible', 'reg', 'prop-int'])
+ node = libfdt.fdt_path_offset(self.fdt, '/%s' % node_name)
+ self.assertEquals(libfdt.fdt_delprop(self.fdt, node, 'reg'), 0)
+ self.assertEquals(self.GetPropList(node_name),
+ ['compatible', 'prop-int'])
+
+ def testHeader(self):
+ """Test that we can access the header values"""
+ self.assertEquals(libfdt.fdt_totalsize(self.fdt), 693)
+ self.assertEquals(libfdt.fdt_off_dt_struct(self.fdt), 88)
+
+ def testPack(self):
+ """Test that we can pack the tree after deleting something"""
+ self.assertEquals(libfdt.fdt_totalsize(self.fdt), 693)
+ node = libfdt.fdt_path_offset(self.fdt, '/subnode@2')
+ self.assertEquals(libfdt.fdt_delprop(self.fdt, node, 'prop-int'), 0)
+ self.assertEquals(libfdt.fdt_totalsize(self.fdt), 693)
+ self.assertEquals(libfdt.fdt_pack(self.fdt), 0)
+ self.assertEquals(libfdt.fdt_totalsize(self.fdt), 677)
+
+if __name__ == "__main__":
+ unittest.main()
diff --git a/tests/run_tests.sh b/tests/run_tests.sh
index e4139dd..707702d 100755
--- a/tests/run_tests.sh
+++ b/tests/run_tests.sh
@@ -720,6 +720,20 @@ fdtdump_tests () {
run_fdtdump_test fdtdump.dts
}
+pylibfdt_tests () {
+ TMP=/tmp/tests.stderr.$$
+ python pylibfdt_tests.py 2> ${TMP}
+ result=$(head -1 ${TMP} | awk \
+ '{ for (i = 1; i <= length($0); i++) { \
+ result = substr($0,i,1); fail = fail + (result == "F"); \
+ ok = ok + (result == ".")}; } END { print fail, ok, fail + ok}')
+
+ # Extract the test results and add them to our totals
+ tot_fail=$((tot_fail + $(echo $result | cut -d" " -f 1)))
+ tot_pass=$((tot_pass + $(echo $result | cut -d" " -f 2)))
+ tot_tests=$((tot_tests + $(echo $result | cut -d" " -f 3)))
+}
+
while getopts "vt:me" ARG ; do
case $ARG in
"v")
@@ -738,7 +752,7 @@ while getopts "vt:me" ARG ; do
done
if [ -z "$TESTSETS" ]; then
- TESTSETS="libfdt utilfdt dtc dtbs_equal fdtget fdtput fdtdump"
+ TESTSETS="libfdt utilfdt dtc dtbs_equal fdtget fdtput fdtdump pylibfdt"
fi
# Make sure we don't have stale blobs lying around
@@ -767,6 +781,9 @@ for set in $TESTSETS; do
"fdtdump")
fdtdump_tests
;;
+ "pylibfdt")
+ pylibfdt_tests
+ ;;
esac
done
--
2.8.0.rc3.226.g39d4020
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