diff --git a/poky/bitbake/lib/bb/tests/utils.py b/poky/bitbake/lib/bb/tests/utils.py
index f4adf1d..5c910b4 100644
--- a/poky/bitbake/lib/bb/tests/utils.py
+++ b/poky/bitbake/lib/bb/tests/utils.py
@@ -103,6 +103,32 @@
             result = bb.utils._check_unsafe_delete_path(arg1)
             self.assertEqual(result, correctresult, '_check_unsafe_delete_path("%s") != %s' % (arg1, correctresult))
 
+class Checksum(unittest.TestCase):
+    filler = b"Shiver me timbers square-rigged spike Gold Road galleon bilge water boatswain wherry jack pirate. Mizzenmast rum lad Privateer jack salmagundi hang the jib piracy Pieces of Eight Corsair. Parrel marooned black spot yawl provost quarterdeck cable no prey, no pay spirits lateen sail."
+
+    def test_md5(self):
+        import hashlib
+        with tempfile.NamedTemporaryFile() as f:
+            f.write(self.filler)
+            f.flush()
+            checksum = bb.utils.md5_file(f.name)
+            self.assertEqual(checksum, "bd572cd5de30a785f4efcb6eaf5089e3")
+
+    def test_sha1(self):
+        import hashlib
+        with tempfile.NamedTemporaryFile() as f:
+            f.write(self.filler)
+            f.flush()
+            checksum = bb.utils.sha1_file(f.name)
+            self.assertEqual(checksum, "249eb8fd654732ea836d5e702d7aa567898eca71")
+
+    def test_sha256(self):
+        import hashlib
+        with tempfile.NamedTemporaryFile() as f:
+            f.write(self.filler)
+            f.flush()
+            checksum = bb.utils.sha256_file(f.name)
+            self.assertEqual(checksum, "fcfbae8bf6b721dbb9d2dc6a9334a58f2031a9a9b302999243f99da4d7f12d0f")
 
 class EditMetadataFile(unittest.TestCase):
     _origfile = """