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test(reset): display_random is accepted and ignored #211

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test(reset): display_random is accepted and ignored #211

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18 changes: 10 additions & 8 deletions tests/test_msg_resetdevice.py
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Original file line number Diff line number Diff line change
Expand Up @@ -245,10 +245,11 @@ def test_reset_device_pin(self):
language='english',
label='test'))

self.assertIsInstance(ret, proto.ButtonRequest)
self.client.debug.press_yes()
ret = self.client.call_raw(proto.ButtonAck())

# display_random=True above is deliberate: the field stays in the wire
# schema for host compatibility but production firmware ignores it,
# because internal entropy is seed pre-image material. A host that
# sets it must get a NORMAL reset -- no Internal Entropy screen -- so
# the very next message is the PIN request, not a ButtonRequest.
self.assertIsInstance(ret, proto.PinMatrixRequest)

# Enter PIN for first time
Expand Down Expand Up @@ -318,10 +319,11 @@ def test_failed_pin(self):
language='english',
label='test'))

self.assertIsInstance(ret, proto.ButtonRequest)
self.client.debug.press_yes()
ret = self.client.call_raw(proto.ButtonAck())

# display_random=True above is deliberate: the field stays in the wire
# schema for host compatibility but production firmware ignores it,
# because internal entropy is seed pre-image material. A host that
# sets it must get a NORMAL reset -- no Internal Entropy screen -- so
# the very next message is the PIN request, not a ButtonRequest.
self.assertIsInstance(ret, proto.PinMatrixRequest)

# Enter PIN for first time
Expand Down
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