dtoc: Add a way to create an Fdt object from a data block

[oweals/u-boot.git] / tools / dtoc / test_fdt.py

diff --git a/tools/dtoc/test_fdt.py b/tools/dtoc/test_fdt.py
index 22a075d6c5710c753141b66c244f20a40608a15a..d2597020500c7667bdab888efb890b31dd4f39fc 100755 (executable)
--- a/tools/dtoc/test_fdt.py
+++ b/tools/dtoc/test_fdt.py
@@ -407,6 +407,14 @@ class TestProp(unittest.TestCase):
         self.node.SetData('empty', '123')
         self.assertEqual('123', prop.bytes)
 
+    def testFromData(self):
+        dtb2 = fdt.Fdt.FromData(self.dtb.GetContents())
+        self.assertEqual(dtb2.GetContents(), self.dtb.GetContents())
+
+        self.node.AddEmptyProp('empty', 5)
+        self.dtb.Sync(auto_resize=True)
+        self.assertTrue(dtb2.GetContents() != self.dtb.GetContents())
+
 
 class TestFdtUtil(unittest.TestCase):
     """Tests for the fdt_util module