Support generator for send (#106)

Support ending data by passing a pair of generator and size

Author: pylessard

doc/source/isotp/implementation.rst

@@ -358,6 +358,7 @@ All errors inherit :class:`isotp.IsoTpError<isotp.IsoTpError>` which itself inhe
 .. autoclass:: isotp.MissingEscapeSequenceError
 .. autoclass:: isotp.InvalidCanFdFirstFrameRXDL
 .. autoclass:: isotp.OverflowError
+.. autoclass:: isotp.BadGeneratorError
 
 ----------
 

isotp/errors.py

@@ -10,6 +10,11 @@ class BlockingSendFailure(IsoTpError):
     pass
 
 
+class BadGeneratorError(IsoTpError):
+    """Happens when the user tries to send data using a generator and provides a size that does not match the amount of data in the generator"""
+    pass
+
+
 class BlockingSendTimeout(BlockingSendFailure):
     """Happens when a blocking send fails to complete because the user timeout is expired. Inherits :class:`BlockingSendFailure<isotp.BlockingSendFailure>`"""
     pass