Merge pull request #13 from alexras/alexras/fix_bread_new_with_data

Fix bug passing data to bread.new()

.gitignore

@@ -8,3 +8,4 @@ MANIFEST
 build/
 dist/
 .tox
+.mypy_cache

bread/lifecycle.py

@@ -12,6 +12,8 @@ def new(spec, type_name='bread_struct', data=None):
 
     if data is None:
         data = BitArray(bytearray(int(math.ceil(len(struct) / 8.0))))
+    elif type(data) == bytearray:
+        data = BitArray(data)
 
     struct._set_data(data)
     struct._offset = 0

mypy.ini

@@ -0,0 +1,2 @@
+[mypy]
+ignore_errors = True

test.py

@@ -1068,10 +1068,18 @@ def test_get_slice():
 
 
 def test_new():
+    _test_new()
+
+
+def test_new_with_data():
+    _test_new(bytearray(8 * 5 + 4))
+
+
+def _test_new(data=None):
     format_spec = [("greeting", b.string(5)),
                    ("age", b.nibble)]
 
-    empty_struct = b.new(format_spec)
+    empty_struct = b.new(format_spec, data=data)
 
     assert len(empty_struct) == 8 * 5 + 4